{"id":99245,"date":"2020-11-03T15:09:27","date_gmt":"2020-11-03T07:09:27","guid":{"rendered":"https:\/\/www.alpapowder.com\/99245\/"},"modified":"2021-08-10T10:37:21","modified_gmt":"2021-08-10T02:37:21","slug":"ung-dung-va-yeu-cau-ky-thuat-cua-nano-canxi-cacbonat-trong-sau-nganh-cong-nghiep","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/99245\/","title":{"rendered":"\u1ee8ng d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a nano canxi cacbonat trong s\u00e1u ng\u00e0nh c\u00f4ng nghi\u1ec7p"},"content":{"rendered":"

Canxi cacbonat nano c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 canxi cacbonat si\u00eau m\u1ecbn. T\u00ean c\u1ee7a ch\u1ea5t chu\u1ea9n l\u00e0 canxi cacbonat si\u00eau m\u1ecbn. Ng\u00e0nh c\u00f4ng nghi\u1ec7p ph\u00e1t tri\u1ec3n nh\u1ea5t c\u1ee7a nano canxi cacbonat l\u00e0 ng\u00e0nh nh\u1ef1a, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu trong c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a cao c\u1ea5p. N\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t l\u01b0u bi\u1ebfn c\u1ee7a nh\u1ef1a t\u1ed5ng h\u1ee3p v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh c\u1ee7a n\u00f3. L\u00e0 ch\u1ea5t \u0111\u1ed9n d\u1ebbo, n\u00f3 c\u00f3 ch\u1ee9c n\u0103ng l\u00e0m d\u1ebbo dai v\u00e0 gia c\u1ed1, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n u\u1ed1n v\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i u\u1ed1n c\u1ee7a nh\u1ef1a, nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a nh\u1ef1a, \u0111\u1ed3ng th\u1eddi l\u00e0m cho nh\u1ef1a c\u00f3 \u0111\u1ed9 tr\u1ec5 nhi\u1ec7t. Nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c s\u1ea3n ph\u1ea9m m\u1ef1c in cho th\u1ea5y \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 trong su\u1ed1t tuy\u1ec7t v\u1eddi, \u0111\u1ed9 b\u00f3ng tuy\u1ec7t v\u1eddi, \u0111\u1ed9 h\u00fat m\u1ef1c tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 kh\u00f4 cao. Nano canxi cacbonat l\u00e0m ch\u1ea5t \u0111\u1ed9n m\u1ef1c trong m\u1ef1c g\u1ed1c nh\u1ef1a c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 \u1ed5n \u0111\u1ecbnh t\u1ed1t, \u0111\u1ed9 b\u00f3ng cao, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t l\u00e0m kh\u00f4 c\u1ee7a m\u1ef1c in v\u00e0 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng m\u1ea1nh.<\/p>\n

Nano canxi cacbonat l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 ch\u1ee9c n\u0103ng c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1eeb 1-100nm. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cao su, nh\u1ef1a, s\u1ea3n xu\u1ea5t gi\u1ea5y, m\u1ef1c in, s\u01a1n, ch\u1ea5t tr\u00e1m v\u00e0 ch\u1ea5t k\u1ebft d\u00ednh, y h\u1ecdc, kem \u0111\u00e1nh r\u0103ng, th\u1ef1c ph\u1ea9m v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c. Tuy nhi\u00ean, c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau c\u00f3 c\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau v\u1ec1 k\u00edch th\u01b0\u1edbc h\u1ea1t, h\u00ecnh d\u1ea1ng tinh th\u1ec3, gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u v\u00e0 \u0111\u1ed9 ph\u00e2n t\u00e1n c\u1ee7a nano canxi cacbonat.<\/p>\n

1\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong nh\u1ef1a<\/strong><\/p>\n

Trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn v\u00e0 s\u1ea3n xu\u1ea5t ch\u1ea5t d\u1ebbo, c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat th\u00f4ng th\u01b0\u1eddng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n n\u00f3i chung. Ngo\u00e0i vi\u1ec7c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n, nano canxi cacbonat bi\u1ebfn t\u00ednh c\u00f2n c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 ch\u1ea5t ho\u1ea1t h\u00f3a v\u00e0 ch\u1ea5t gia c\u01b0\u1eddng, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m nh\u1ef1a, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ea3n ph\u1ea9m, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t x\u1eed l\u00fd c\u1ee7a nh\u1ef1a v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, \u0111\u1ed9 b\u1ec1n u\u1ed1n v\u00e0 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a V\u00e0 c\u00e1c ch\u1ec9 ti\u00eau t\u00ednh n\u0103ng kh\u00e1c.<\/p>\n

Canxi cacbonat nano \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ch\u1ebf bi\u1ebfn PVC, PS, PP v\u00e0 c\u00e1c lo\u1ea1i nh\u1ef1a kh\u00e1c. Trong \u0111\u00f3, l\u01b0\u1ee3ng PVC l\u00e0 l\u1edbn nh\u1ea5t, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi d\u00e2y v\u00e0 c\u00e1p, \u1ed1ng v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c. Canxi cacbonat nano c\u00f3 t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng v\u00e0 t\u1ea1o \u0111\u1ed9 d\u1ebbo dai t\u1ed1t cho nh\u1ef1a PVC. C\u00e1c \u0111\u1eb7c t\u00ednh nano ch\u00ednh c\u1ee7a n\u00f3 l\u00e0m cho nh\u1ef1a PVC \u0111\u00e3 qua x\u1eed l\u00fd c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc t\u1ed1t nh\u01b0 \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ng\u0103n c\u1ea3n, ch\u1ed1ng ch\u00e1y v\u00e0 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t.<\/p>\n

Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a nano canxi cacbonat trong ng\u00e0nh nh\u1ef1a nh\u01b0 sau \uff1a<\/p>\n

Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u: ng\u00e0nh nh\u1ef1a n\u00f3i chung y\u00eau c\u1ea7u gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u c\u1ee7a nano canxi cacbonat r\u1ea5t th\u1ea5p, v\u00ec k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a nano canxi cacbonat nh\u1ecf v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn. N\u1ebfu gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u l\u1edbn, s\u1ebd ti\u00eau t\u1ed1n nhi\u1ec1u ch\u1ea5t h\u00f3a d\u1ebbo trong qu\u00e1 tr\u00ecnh tr\u1ed9n, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m t\u0103ng \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 th\u1ed1ng, kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t x\u1eed l\u00fd m\u00e0 c\u00f2n l\u00e0m t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>\n

D\u1ea1ng pha l\u00ea: ch\u1ee7 y\u1ebfu l\u00e0 h\u00ecnh kh\u1ed1i, h\u00ecnh c\u1ea7u, c\u00e1c s\u1ea3n ph\u1ea9m pha l\u00ea n\u00e0y th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu ch\u1ea3y k\u00e9m h\u01a1n, d\u1ec5 s\u1ea3n xu\u1ea5t gia c\u00f4ng v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t c\u1ee7a s\u1ea3n ph\u1ea9m nh\u1ef1a.<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ea1t: k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nh\u1ef1a th\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf kho\u1ea3ng 100nm. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 l\u1edbn, n\u00f3 kh\u00f4ng th\u1ec3 ph\u1ea3n \u00e1nh t\u00e1c d\u1ee5ng c\u1ee7a nano canxi cacbonat, v\u00e0 s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh th\u1ee9c c\u1ee7a s\u1ea3n ph\u1ea9m; N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 nh\u1ecf, n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t s\u1ebd t\u0103ng l\u00ean, v\u00e0 c\u00e1c h\u1ea1t s\u1ebd k\u1ebft t\u1ee5 nghi\u00eam tr\u1ecdng, kh\u00f3 ph\u00e2n t\u00e1n ho\u00e0n to\u00e0n trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn, d\u1eabn \u0111\u1ebfn c\u00e1c h\u1ea1t tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m.<\/p>\n

T\u00ednh ph\u00e2n t\u00e1n: n\u00ean ch\u1ecdn nano canxi cacbonat c\u00f3 \u0111\u1ed9 ph\u00e2n t\u00e1n cao. N\u1ebfu nano canxi cacbonat k\u1ebft t\u1ee5 nghi\u00eam tr\u1ecdng, k\u00edch th\u01b0\u1edbc h\u1ea1t th\u1ee9 c\u1ea5p s\u1ebd l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t s\u01a1 c\u1ea5p, \u0111\u1ed3ng th\u1eddi l\u1ef1c c\u1eaft c\u1ee7a qu\u00e1 tr\u00ecnh gia c\u00f4ng v\u00e0 tr\u1ed9n nh\u1ef1a kh\u00f4ng qu\u00e1 m\u1ea1nh. M\u1ed9t s\u1ed1 nano canxi cacbonat c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft t\u1ee5 nghi\u00eam tr\u1ecdng kh\u00f4ng d\u1ec5 ph\u00e2n t\u00e1n s\u1ebd g\u00e2y ra c\u00e1c khuy\u1ebft t\u1eadt c\u1ee5c b\u1ed9 trong \u1ee9ng d\u1ee5ng v\u00e0 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/p>\n

\u0110\u1ed9 \u1ea9m: ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m kh\u00f4ng \u0111\u01b0\u1ee3c cao h\u01a1n 0,5%. N\u1ebfu \u0111\u1ed9 \u1ea9m qu\u00e1 cao, b\u1ec1 m\u1eb7t nh\u1ef1a s\u1ebd t\u1ea1o ra b\u1ecdt kh\u00ed ho\u1eb7c l\u1ed7 r\u1ed7ng.<\/p>\n

Gi\u00e1 tr\u1ecb pH: gi\u00e1 tr\u1ecb pH c\u1ee7a nano canxi cacbonat n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t d\u01b0\u1edbi 10. N\u1ebfu gi\u00e1 tr\u1ecb pH qu\u00e1 cao s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tr\u1eafng v\u00e0 \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t c\u1ee7a s\u1ea3n ph\u1ea9m v\u00e0 l\u00e0m cho h\u00ecnh th\u1ee9c b\u00ean ngo\u00e0i x\u1ea5u \u0111i. \u0110\u1ed3ng th\u1eddi, pH cao c\u0169ng s\u1ebd l\u00e0m t\u0103ng \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.<\/p>\n

Trong c\u00e1c lo\u1ea1i nguy\u00ean li\u1ec7u b\u1ed9t kho\u00e1ng phi kim lo\u1ea1i d\u00f9ng trong ng\u00e0nh nh\u1ef1a, h\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 l\u1edbn nh\u1ea5t, chi\u1ebfm 60-70% t\u1ed5ng l\u01b0\u1ee3ng ph\u1ee5 gia ng\u00e0nh nh\u1ef1a. Tuy nhi\u00ean, v\u1eabn c\u00f2n nhi\u1ec1u v\u1ea5n \u0111\u1ec1 trong nghi\u00ean c\u1ee9u \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1ch gi\u1ea3i quy\u1ebft s\u1ef1 k\u1ebft t\u1ee5 c\u1ee7a nano canxi cacbonat, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 ph\u00e2n t\u00e1n c\u1ee7a nano canxi cacbonat, v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft c\u1ee7a v\u1eadt li\u1ec7u composite ch\u01b0a \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3. \u0111\u00e3 gi\u1ea3i quy\u1ebft.<\/p>\n

2\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong cao su<\/strong><\/p>\n

Canxi cacbonat nano ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c s\u1ea3n ph\u1ea9m l\u1ed1p, d\u00e2y, c\u00e1p v\u00e0 cao su trong ng\u00e0nh cao su. N\u00f3 c\u00f3 th\u1ec3 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng, gi\u1ea3m chi ph\u00ed v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t x\u1eed l\u00fd cao su. Hi\u1ec7n nay, canxi cacbonat ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong cao su l\u00e0 canxi cacbonat n\u1eb7ng v\u00e0 canxi cacbonat nh\u1eb9 th\u00f4ng th\u01b0\u1eddng. L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng v\u00e0 ph\u1ea1m vi c\u1ee7a nano canxi cacbonat c\u0169ng \u0111ang \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng. C\u00e1c s\u1ea3n ph\u1ea9m cao su c\u00f3 nano canxi cacbonat t\u1ed1t h\u01a1n nhi\u1ec1u so v\u1edbi canxi cacbonat th\u00f4ng th\u01b0\u1eddng v\u1ec1 \u0111\u1ed9 gi\u00e3n d\u00e0i, bi\u1ebfn d\u1ea1ng n\u00e9n, ch\u1ed1ng ch\u1ea3y v\u00e0 ch\u1ed1ng r\u00e1ch. Canxi cacbonat nano \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng c\u00f4ng ngh\u1ec7 \u0111\u1eb7c bi\u1ec7t c\u00f3 ho\u1ea1t t\u00ednh b\u1ec1 m\u1eb7t cao. D\u01b0\u1edbi s\u1ef1 chi\u1ebfu x\u1ea1 c\u1ee7a tia c\u1ef1c t\u00edm, n\u00f3 c\u00f3 th\u1ec3 gi\u1ea3i ph\u00f3ng c\u00e1c electron chuy\u1ec3n \u0111\u1ed9ng t\u1ef1 do v\u00e0 d\u1ec5 d\u00e0ng ph\u1ea3n \u1ee9ng v\u1edbi oxy ho\u1eb7c c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 \u0111\u1ec3 ti\u00eau di\u1ec7t virus v\u00e0 vi khu\u1ea9n. V\u00ec v\u1eady, nano canxi cacbonat c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng kh\u1eed tr\u00f9ng, di\u1ec7t khu\u1ea9n.<\/p>\n

V\u1ecf xe: nano canxi cacbonat c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n cacbon \u0111en v\u00e0 cacbon \u0111en tr\u1eafng trong s\u1ea3n xu\u1ea5t l\u1ed1p \u00f4 t\u00f4, nh\u01b0ng v\u1eabn c\u00f2n kho\u1ea3ng c\u00e1ch v\u1ec1 t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng. V\u00ec v\u1eady, n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu \u00edt \u1ee9ng su\u1ea5t h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00e0nh b\u00ean, h\u1ee3p ch\u1ea5t d\u00e2y, cao su l\u1edbp trong, cao su \u0111\u1ec7m, … Trong s\u1ea3n xu\u1ea5t, nano canxi cacbonat v\u00e0 oxit k\u1ebdm ho\u1ea1t t\u00ednh c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n c\u1ee7a h\u1ee3p ch\u1ea5t m\u1eb7t l\u1ed1p.<\/p>\n

\u1ed0ng v\u00e0 b\u0103ng cao su: nano canxi cacbonat ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng v\u00e0 l\u00e0m tr\u1eafng \u1ed1ng v\u00e0 b\u0103ng cao su, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n c\u1ee7a h\u1ee3p ch\u1ea5t cao su.<\/p>\n

D\u00e2y v\u00e0 c\u00e1p: nano canxi cacbonat th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u1ecf b\u1ea3o v\u1ec7 c\u1ee7a d\u00e2y v\u00e0 c\u00e1p m\u1ecf, d\u00e2y v\u00e0 c\u00e1p \u0111i\u1ec7n cao th\u1ebf, d\u00e2y v\u00e0 c\u00e1p h\u00e0ng h\u1ea3i c\u0169ng nh\u01b0 keo d\u00e1n d\u00e2y v\u00e0 c\u00e1p \u0111i\u1ec7n.<\/p>\n

C\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a nano canxi cacbonat trong ng\u00e0nh cao su nh\u01b0 sau \uff1a<\/p>\n

Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u: ng\u00e0nh c\u00f4ng nghi\u1ec7p cao su c\u00f3 y\u00eau c\u1ea7u cao h\u01a1n v\u1ec1 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u c\u1ee7a nano canxi cacbonat. Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u c\u00e0ng cao th\u00ec kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt v\u00e0 gia c\u1ed1 c\u1ee7a cao su c\u00e0ng t\u1ed1t.<\/p>\n

D\u1ea1ng tinh th\u1ec3: do t\u00ednh n\u0103ng gia c\u01b0\u1eddng cao c\u1ee7a cao su, d\u1ea1ng tinh th\u1ec3 c\u1ee7a nano canxi cacbonat ch\u1ee7 y\u1ebfu l\u00e0 chu\u1ed7i ho\u1eb7c chu\u1ed7i gi\u1ed1ng nh\u01b0 chu\u1ed7i, v\u00e0 c\u00e1c ph\u00e2n \u0111o\u1ea1n chu\u1ed7i s\u1ebd v\u01b0\u1edbng v\u00e0o nhau trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 n\u00e2ng cao s\u1ee9c m\u1ea1nh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ea1t: k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong cao su n\u00f3i chung l\u00e0 80-120nm. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 l\u1edbn th\u00ec kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 gia c\u01b0\u1eddng. Tuy nhi\u00ean, n\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 nh\u1ecf, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac gi\u1eefa k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 \u0111\u1ed9 th\u1ea5m cao su t\u0103ng l\u00ean, g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c ph\u00e2n t\u00e1n v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh tr\u1ed9n cao su.<\/p>\n

\u0110\u1ed9 \u1ea9m: \u0111\u1ed9 \u1ea9m kh\u00f4ng \u0111\u01b0\u1ee3c cao h\u01a1n 0,5%. N\u1ebfu \u0111\u1ed9 \u1ea9m qu\u00e1 cao s\u1ebd k\u00e9o d\u00e0i th\u1eddi gian l\u01b0u h\u00f3a ch\u00e1y x\u00e9m, kh\u00f4ng c\u00f3 l\u1ee3i cho vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 l\u01b0u h\u00f3a.<\/p>\n

Gi\u00e1 tr\u1ecb pH: gi\u00e1 tr\u1ecb pH c\u1ee7a nano canxi cacbonat ch\u1ee7 y\u1ebfu \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 l\u01b0u h\u00f3a c\u1ee7a n\u00f3, c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c 9,5-10,5. N\u1ebfu gi\u00e1 tr\u1ecb pH th\u1ea5p, t\u1ed1c \u0111\u1ed9 l\u01b0u h\u00f3a s\u1ebd ch\u1eadm l\u1ea1i, gi\u1ea3m hi\u1ec7u su\u1ea5t v\u00e0 t\u0103ng ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

Th\u00eam nano canxi cacbonat v\u00e0o cao su c\u00f3 th\u1ec3 n\u00e2ng cao t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng c\u1ee7a cao su, \u0111\u1ed3ng th\u1eddi c\u0169ng c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a, kh\u1ea3 n\u0103ng ch\u1ed1ng d\u1ea7u v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n c\u1ee7a v\u1eadt li\u1ec7u. So v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m canxi nh\u1eb9 th\u00f4ng th\u01b0\u1eddng, t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng c\u1ee7a nano canxi cacbonat t\u1ed1t h\u01a1n, nh\u01b0ng k\u00e9m h\u01a1n so v\u1edbi mu\u1ed9i than v\u00e0 silic. N\u1ebfu carbon \u0111en v\u00e0 silica<\/a> \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng nano canxi cacbonat, \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u s\u1ebd b\u1ecb gi\u1ea3m. N\u1ebfu l\u01b0\u1ee3ng s\u1eed d\u1ee5ng qu\u00e1 l\u1edbn s\u1ebd x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng d\u00ednh con l\u0103n. Do \u0111\u00f3, c\u00f4ng th\u1ee9c k\u1ef9 thu\u1eadt c\u1ea7n g\u1ee1 l\u1ed7i h\u1ee3p l\u00fd v\u00e0 t\u1ed1i \u01b0u h\u00f3a li\u00ean t\u1ee5c.<\/p>\n

3\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong ch\u1ea5t k\u1ebft d\u00ednh<\/strong><\/p>\n

Keo c\u00f3 th\u00e0nh ph\u1ea7n ch\u1ee7 y\u1ebfu l\u00e0 keo n\u1ec1n, ch\u1ea5t \u0111\u00f3ng r\u1eafn, ch\u1ea5t \u0111\u1ed9n, ch\u1ea5t k\u1ebft n\u1ed1i v\u00e0 ch\u1ea5t x\u00fac t\u00e1c. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a b\u1ea5t \u0111\u1ed9ng s\u1ea3n, v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c c\u1ee7a Trung Qu\u1ed1c, l\u01b0\u1ee3ng ch\u1ea5t k\u1ebft d\u00ednh t\u0103ng l\u00ean nhanh ch\u00f3ng. L\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ea5t \u0111\u1ed9n quan tr\u1ecdng c\u1ee7a ch\u1ea5t k\u1ebft d\u00ednh, nano canxi cacbonat kh\u00f4ng ch\u1ec9 c\u00f3 gi\u00e1 th\u00e0nh r\u1ebb m\u00e0 c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh. N\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh li\u00ean k\u1ebft ch\u00e9o c\u1ee7a ch\u1ea5t k\u1ebft d\u00ednh, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n thixotropy, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00e1m d\u00ednh, \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 t\u00e1c d\u1ee5ng gia c\u1ed1. Hi\u1ec7n t\u1ea1i, c\u00f4ng ngh\u1ec7 \u1ee9ng d\u1ee5ng nano canxi cacbonat trong keo polysiloxan \u0111\u00e3 t\u01b0\u01a1ng \u0111\u1ed1i ho\u00e0n thi\u1ec7n, nh\u01b0ng \u1ee9ng d\u1ee5ng trong keo polyurethane v\u1eabn c\u00f2n s\u01a1 khai. Keo polyurethane c\u00f3 kh\u1ea3 n\u0103ng b\u00e1m d\u00ednh v\u00e0 ch\u1ed1ng l\u00e3o h\u00f3a tuy\u1ec7t v\u1eddi, \u0111\u1ed3ng th\u1eddi c\u00f3 \u0111\u1eb7c t\u00ednh ph\u1ee7 b\u1ec1 m\u1eb7t m\u00e0 silicone kh\u00f4ng c\u00f3. Trong l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng kh\u00f4ng \u00f4 nhi\u1ec5m, b\u00e1m d\u00ednh t\u1ed1t v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft, ch\u1ea5t k\u1ebft d\u00ednh polyurethane c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m r\u00f5 r\u00e0ng.<\/p>\n

C\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ch\u00ednh c\u1ee7a nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ch\u1ea5t k\u1ebft d\u00ednh nh\u01b0 sau:<\/p>\n

Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u: gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 m\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t cao su silicone r\u1ea5t ch\u00fa \u00fd, n\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt c\u1ee7a nano canxi cacbonat trong cao su. Canxi cacbonat nano cao h\u01a1n c\u00f3 \u01b0u \u0111i\u1ec3m v\u1ec1 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 t\u00ednh thixotropy, nh\u01b0ng s\u1ebd d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng keo nh\u1edbt, ti\u00eau t\u1ed1n nhi\u1ec1u ph\u1ee5 gia h\u01a1n v\u00e0 t\u0103ng gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t. C\u00e1c y\u00eau c\u1ea7u v\u1ec1 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u c\u1ee7a nano canxi cacbonat trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng th\u1ee9c c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau l\u00e0 kh\u00e1c nhau, \u0111i\u1ec1u n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng tr\u01b0\u1eddng h\u1ee3p.<\/p>\n

D\u1ea1ng tinh th\u1ec3: n\u00f3i chung l\u00e0 kh\u1ed1i ho\u1eb7c l\u1ee5c di\u1ec7n h\u00ecnh thoi, \u0111\u1ed3ng th\u1eddi c\u0169ng c\u1ea7n th\u00edch \u1ee9ng v\u1edbi y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u00e0 thi\u1ebft b\u1ecb s\u1ea3n xu\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n

N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t CaCO 3 qu\u00e1 nh\u1ecf kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c, ch\u1ea5t keo s\u1ebd d\u1ec5 k\u1ebft t\u1ee5; n\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 nh\u1ecf, ch\u1ea5t keo s\u1ebd d\u1ec5 k\u1ebft t\u1ee5.<\/p>\n

\u0110\u1ed9 \u1ea9m: \u0111\u1ed9 \u1ea9m c\u00e0ng th\u1ea5p th\u00ec nano canxi cacbonat d\u00f9ng l\u00e0m ch\u1ea5t k\u1ebft d\u00ednh c\u00e0ng t\u1ed1t, n\u00f3i chung l\u00e0 nh\u1ecf h\u01a1n 0,5%. N\u1ebfu h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ee7a nano canxi cacbonat cao h\u01a1n, c\u00e1c nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t t\u0103ng l\u00ean v\u00e0 c\u00e1c t\u1eadp h\u1ee3p c\u00f3 xu h\u01b0\u1edbng k\u1ebft t\u1ee5 v\u1edbi nhau, t\u1ea1o th\u00e0nh m\u1ea1ng l\u01b0\u1edbi kh\u00f4ng gian ba chi\u1ec1u d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a cao su n\u1ec1n, l\u00e0m t\u0103ng \u0111\u1ed9 nh\u1edbt c\u1ee7a cao su. , k\u00e9o d\u00e0i th\u1eddi gian tr\u1ed9n, gi\u1ea3m s\u1ea3n l\u01b0\u1ee3ng v\u00e0 t\u0103ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng; Qu\u00e1 nhi\u1ec1u n\u01b0\u1edbc c\u0169ng g\u00e2y ra s\u1ef1 gia t\u0103ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng. N\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c ch\u1ea5t ph\u1ee5 gia t\u1ea1o ra c\u00e1c h\u1ea1t, d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e2n t\u00e1n k\u00e9m c\u1ee7a s\u1ea3n ph\u1ea9m v\u00e0 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c h\u1ea1t. Trong ch\u1ea5t k\u1ebft d\u00ednh polyurethane c\u00f3 nhi\u1ec1u g\u1ed1c isocyanate, r\u1ea5t d\u1ec5 b\u1ecb th\u1ee7y ph\u00e2n. S\u1ef1 t\u1ea1o th\u00e0nh CO2 l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng s\u1ee7i b\u1ecdt tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m.<\/p>\n

Gi\u00e1 tr\u1ecb pH: canxi cacbonat l\u00e0 m\u1ed9t lo\u1ea1i mu\u1ed1i ki\u1ec1m y\u1ebfu v\u1edbi gi\u00e1 tr\u1ecb pH t\u1eeb 8-10. Ch\u1ea5t ph\u1ee7 b\u1ec1 m\u1eb7t c\u1ee7a canxi cacbonat ho\u1ea1t t\u00ednh nano th\u01b0\u1eddng l\u00e0 axit h\u1eefu c\u01a1 y\u1ebfu ho\u1eb7c mu\u1ed1i axit h\u1eefu c\u01a1, c\u00f3 t\u00e1c d\u1ee5ng trung h\u00f2a nh\u1ea5t \u0111\u1ecbnh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3. Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, hi\u1ec7n t\u01b0\u1ee3ng canxi cacbonat tr\u1edf l\u1ea1i ki\u1ec1m l\u00e0 r\u1ea5t ph\u1ed5 bi\u1ebfn. N\u1ebfu ki\u1ec1m kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u00edch h\u1ee3p, n\u00f3 s\u1ebd t\u1ea1o ra n\u01b0\u1edbc c\u00f3 th\u00e0nh ph\u1ea7n axit trong nguy\u00ean li\u1ec7u cao su, ch\u1ea5t n\u00e0y s\u1ebd th\u1ee7y ph\u00e2n siloxan t\u1ea1o ra c\u00e1c h\u1ea1t v\u00f4 c\u01a1. B\u1ec1 ngo\u00e0i s\u1ea3n ph\u1ea9m k\u00e9m c\u0169ng s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01a1 t\u00ednh c\u1ee7a n\u00f3.<\/p>\n

Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee5 th\u1ec3: v\u00ec k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf 60 ~ 100nm, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee5 th\u1ec3 t\u01b0\u01a1ng \u1ee9ng n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf 20 ~ 25m2 \/ g. n\u1ebfu di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee5 th\u1ec3 qu\u00e1 l\u1edbn, hi\u1ec7u qu\u1ea3 gia c\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c n\u00e2ng cao, nh\u01b0ng \u0111\u1ed3ng th\u1eddi, hi\u1ec7u su\u1ea5t \u0111\u00f9n c\u1ee7a ch\u1ea5t k\u1ebft d\u00ednh s\u1ebd b\u1ecb gi\u1ea3m s\u00fat v\u00e0 hi\u1ec7u qu\u1ea3 ph\u00e2n t\u00e1n c\u1ee7a s\u1ea3n ph\u1ea9m c\u0169ng s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n

Hi\u1ec7n t\u1ea1i, v\u1edbi vi\u1ec7c nghi\u00ean c\u1ee9u s\u00e2u h\u01a1n h\u1ec7 th\u1ed1ng nano canxi cacbonat, n\u00f3 s\u1ebd kh\u00f4ng \u0111\u00f3ng vai tr\u00f2 t\u01b0\u01a1ng t\u1ef1 trong l\u0129nh v\u1ef1c k\u1ebft d\u00ednh nano, ch\u1eb3ng h\u1ea1n nh\u01b0 nano canxi cacbonat.<\/p>\n

4\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong l\u1edbp ph\u1ee7<\/strong><\/p>\n

Canxi cacbonat n\u1eb7ng, canxi cacbonat nh\u1eb9 v\u00e0 canxi cacbonat nano \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u1edbp ph\u1ee7. So v\u1edbi canxi cacbonat n\u1eb7ng ho\u1eb7c canxi nh\u1eb9 th\u00f4ng th\u01b0\u1eddng, nano canxi cacbonat kh\u00f4ng ch\u1ec9 c\u00f3 t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng t\u1ed1t h\u01a1n m\u00e0 c\u00f2n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ee7, \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 trong su\u1ed1t, \u0111\u1eb7c t\u00ednh kh\u00f4 nhanh v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a l\u1edbp ph\u1ee7. Trong m\u1ed9t s\u1ed1 ng\u00e0nh c\u00f4ng nghi\u1ec7p, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u01a1n ph\u1ee7 \u00f4 t\u00f4 v\u00e0 s\u01a1n ph\u1ee7 ki\u1ebfn \u200b\u200btr\u00fac, nano canxi cacbonat c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n ho\u1eb7c ho\u00e0n to\u00e0n titan \u0111i\u00f4x\u00edt \u0111\u1eaft ti\u1ec1n \u0111\u1ec3 gi\u1ea3m chi ph\u00ed c\u1ee7a doanh nghi\u1ec7p.<\/p>\n

C\u00f4ng ngh\u1ec7 ch\u00ednh c\u1ee7a nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng PVC plastisol \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng \uff1a<\/p>\n

Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u: n\u00f3i chung, y\u00eau c\u1ea7u th\u1ea5p. N\u1ebfu gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u cao, \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 th\u1ed1ng s\u1ebd t\u0103ng l\u00ean, v\u00e0 s\u1ebd c\u1ea7n nhi\u1ec1u ch\u1ea5t h\u00f3a d\u1ebbo h\u01a1n, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t. Tuy nhi\u00ean, y\u00eau c\u1ea7u v\u1ec1 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u c\u1ee7a nano canxi cacbonat \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c nhau l\u00e0 kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau, \u0111i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o t\u1eebng tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, m\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng c\u1ea7n s\u1ea3n ph\u1ea9m c\u00f3 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u cao, \u0111\u1ed9 nh\u1edbt cao v\u00e0 gi\u00e1 tr\u1ecb n\u0103ng su\u1ea5t cao.<\/p>\n

D\u1ea1ng tinh th\u1ec3: th\u01b0\u1eddng l\u00e0 h\u00ecnh kh\u1ed1i<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ea1t: th\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf 60-100nm. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 l\u1edbn, \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 s\u1ebd b\u1ecb gi\u1ea3m, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc b\u1ecb \u1ea3nh h\u01b0\u1edfng v\u00e0 t\u00ednh ch\u1ea5t thixotropy c\u1ee7a h\u1ec7 s\u1ebd tr\u1edf n\u00ean k\u00e9m h\u01a1n; N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t qu\u00e1 nh\u1ecf, nano canxi cacbonat s\u1ebd k\u1ebft t\u1ee5 nghi\u00eam tr\u1ecdng, d\u1ec5 d\u1eabn \u0111\u1ebfn ph\u00e2n t\u00e1n k\u00e9m v\u00e0 t\u1ea1o r\u1ed7 tr\u00ean b\u1ec1 m\u1eb7t keo. \u0110\u1ed3ng th\u1eddi, \u0111\u1ed9 nh\u1edbt v\u00e0 gi\u00e1 tr\u1ecb n\u0103ng su\u1ea5t s\u1ebd \u0111\u01b0\u1ee3c t\u0103ng l\u00ean.<\/p>\n

Ngo\u00e0i c\u00e1c ch\u1ec9 s\u1ed1 ph\u00e1t hi\u1ec7n th\u00f4ng th\u01b0\u1eddng \u1edf tr\u00ean, nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng plastisol PVC c\u0169ng c\u00f3 c\u00e1c y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t \u1ee9ng d\u1ee5ng<\/p>\n

N\u00f3 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t, t\u1ee9c l\u00e0 \u0111\u1ed9 m\u1ecfng khi c\u1eaft cao v\u00e0 \u0111\u1ed9 d\u00e0y khi c\u1eaft th\u1ea5p. Khi nano canxi cacbonat \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong h\u1ec7 th\u1ed1ng PVC plastisol, \u0111\u1ed9 nh\u1edbt gi\u1ea3m \u1edf t\u1ed1c \u0111\u1ed9 c\u1eaft cao, c\u00f3 l\u1ee3i cho s\u1ef1 ch\u1ea3y c\u1ee7a l\u1edbp ph\u1ee7. Tuy nhi\u00ean, trong \u0111i\u1ec1u ki\u1ec7n t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p tr\u01b0\u1edbc v\u00e0 sau khi thi c\u00f4ng, \u0111\u1ed9 nh\u1edbt tr\u1edf n\u00ean cao h\u01a1n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 l\u1edbp ph\u1ee7 b\u1ecb ch\u1ea3y x\u1ec7;<\/p>\n

V\u1edbi gi\u00e1 tr\u1ecb n\u0103ng su\u1ea5t cao, l\u1edbp ph\u1ee7 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t v\u00e0 c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 x\u00e1o tr\u1ed9n nh\u1ecf v\u00e0 t\u00e1c \u0111\u1ed9ng ngo\u1ea1i l\u1ef1c;
\nCh\u1ea5t l\u01b0\u1ee3ng t\u1ed1t \u1ed5n \u0111\u1ecbnh.<\/p>\n

Hi\u1ec7n nay, m\u1ee9c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a nano canxi cacbonat trong n\u01b0\u1edbc c\u00f2n ch\u00eanh l\u1ec7ch l\u1edbn so v\u1edbi s\u1ea3n ph\u1ea9m nh\u1eadp kh\u1ea9u, m\u1ed9t s\u1ed1 ch\u1ec9 ti\u00eau t\u1ed1t kh\u00f3 xu\u1ea5t hi\u1ec7n v\u00e0 duy tr\u00ec.<\/p>\n

5\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong m\u1ef1c in<\/strong><\/p>\n

M\u1ef1c ch\u1ee7 y\u1ebfu bao g\u1ed3m b\u1ed9t m\u00e0u, ch\u1ea5t k\u1ebft d\u00ednh, ch\u1ea5t \u0111\u1ed9n, ph\u1ee5 gia, … nano canxi cacbonat bi\u1ebfn t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh, v\u00e0 c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 \u0111\u1ed9 b\u00f3ng cao, \u1ed5n \u0111\u1ecbnh m\u1ea1nh, kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng m\u1ea1nh, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn y\u1ebfu t\u1ed1 m\u1ef1c v\u00e0 hi\u1ec7u su\u1ea5t l\u00e0m kh\u00f4. N\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n to\u00e0n di\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng m\u1ef1c v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>\n

Canxi cacbonat nano \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ef1c in y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t cao. Sau khi s\u1eed d\u1ee5ng, m\u1ef1c ph\u1ea3i cho th\u1ea5y \u0111\u1ed9 ph\u00e2n t\u00e1n, h\u1ea5p th\u1ee5 t\u1ed1t, trong su\u1ed1t, b\u00f3ng, kh\u1ea3 n\u0103ng che ph\u1ee7 t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng in \u1ea5n. \u0110\u1ed9 ph\u00e2n t\u00e1n quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng v\u00e0 \u0111\u1ed9 trong su\u1ed1t c\u1ee7a m\u1ef1c. H\u00ecnh d\u1ea1ng tinh th\u1ec3 c\u1ee7a nano canxi cacbonat ch\u1ee7 y\u1ebfu l\u00e0 h\u00ecnh kh\u1ed1i, v\u00e0 nano canxi cacbonat c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng c\u00f3 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p, N\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi t\u00ednh l\u01b0u \u0111\u1ed9ng t\u1ed1t v\u00e0 d\u1ec5 ph\u00e2n t\u00e1n; k\u00edch th\u01b0\u1edbc h\u1ea1t n\u00f3i chung l\u00e0 t\u1eeb 20 nm \u0111\u1ebfn 100 nm; t\u00ednh l\u01b0u \u0111\u1ed9ng c\u00f3 li\u00ean quan \u0111\u1ebfn h\u00ecnh d\u1ea1ng tinh th\u1ec3 v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t, v\u00e0 c\u00e1c d\u1ea1ng tinh th\u1ec3 h\u00ecnh kh\u1ed1i v\u00e0 h\u00ecnh c\u1ea7u cho th\u1ea5y t\u00ednh l\u01b0u \u0111\u1ed9ng l\u1edbn h\u01a1n, trong khi d\u1ea1ng chu\u1ed7i cho th\u1ea5y t\u00ednh l\u01b0u \u0111\u1ed9ng nh\u1ecf h\u01a1n. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ea7n l\u1ef1a ch\u1ecdn nano canxi cacbonat ph\u00f9 h\u1ee3p theo lo\u1ea1i m\u1ef1c \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t; m\u1ed9t ch\u1ec9 s\u1ed1 quan tr\u1ecdng c\u1ee7a m\u1ef1c b\u00f3ng l\u00e0 tinh th\u1ec3 c\u1ee7a canxi cacbonat. H\u00ecnh d\u1ea1ng li\u00ean quan \u0111\u1ebfn s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t. Canxi cacbonat nano c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng c\u00f3 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t h\u1eb9p, \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp c\u00f3 tr\u1eadt t\u1ef1 trong l\u1edbp ph\u1ee7 m\u1ef1c, gi\u00fap b\u1ec1 m\u1eb7t in m\u1ecbn v\u00e0 th\u1ec3 hi\u1ec7n \u0111\u1ed9 b\u00f3ng t\u1ed1t; y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 tr\u1eafng th\u1ea5p, do c\u1ea7n ph\u1ea3i th\u00eam c\u00e1c ch\u1ea5t m\u00e0u kh\u00e1c, \u0111\u1ed9 tr\u1eafng qu\u00e1 cao s\u1ebd g\u00e2y kh\u00f3 nhu\u1ed9m m\u00e0u.<\/p>\n

Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p m\u1ef1c in, nano canxi cacbonat \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng. Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a m\u1ef1c quy\u1ebft \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a b\u1ea3n in. M\u1ef1c \u0111\u01b0\u1ee3c pha ch\u1ebf b\u1eb1ng nano canxi cacbonat m\u1ecbn, \u1ed5n \u0111\u1ecbnh, kh\u1ea3 n\u0103ng in t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng bao ph\u1ee7 m\u1ea1nh.<\/p>\n

Trong qu\u00e1 tr\u00ecnh in, n\u00f3 c\u00f2n th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng h\u00fat m\u1ef1c t\u1ed1t, gi\u00fap m\u1ef1c nhanh kh\u00f4.<\/p>\n

6\u3001\u1ee8ng d\u1ee5ng c\u1ee7a nano canxi cacbonat trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/strong><\/p>\n

Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y, \u1ee9ng d\u1ee5ng c\u1ee7a nano canxi cacbonat ch\u1ee7 y\u1ebfu \u1edf c\u00e1c kh\u00eda c\u1ea1nh sau:<\/p>\n

L\u00e0 ch\u1ea5t \u0111\u1ed9n gi\u1ea5y, nano canxi cacbonat c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u, \u0111\u1ed9 m\u00f2n thi\u1ebft b\u1ecb nh\u1ecf, s\u1ea3n ph\u1ea9m gi\u1ea5y m\u1ecbn v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u, k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf, gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u l\u1edbn v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang, c\u00f3 l\u1ee3i cho \u0111\u1ed9 c\u1ee9ng c\u1ee7a b\u1ed9t m\u00e0u; \u0111\u1ed9 tr\u1eafng t\u1ed1t, \u0111\u1ed9 s\u00e1ng cao v\u00e0 \u0111\u1eb7c t\u00ednh che ch\u1eafn \u00e1nh s\u00e1ng t\u1ed1t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng v\u00e0 b\u00f3ng c\u1ee7a gi\u1ea5y; n\u00f3 c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m l\u01b0\u1ee3ng b\u1ed9t gi\u1ea5y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, gi\u1ea3m chi ph\u00ed v\u00e0 c\u00f3 l\u1ee3i cho vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

Trong gi\u1ea5y thu\u1ed1c l\u00e1, l\u01b0\u1ee3ng nano canxi cacbonat b\u1ed5 sung kho\u1ea3ng 45% – 50%, v\u00ec n\u00f3 c\u00f3 chi\u1ebft su\u1ea5t cao v\u00e0 \u0111\u1ed9 m\u1edd t\u1ed1t n\u00ean t\u1eeb b\u00ean ngo\u00e0i kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y thu\u1ed1c l\u00e1 \u0111\u00e3 c\u1eaft b\u00ean trong gi\u1ea5y thu\u1ed1c l\u00e1; Khi \u0111i\u1ebfu thu\u1ed1c \u0111ang ch\u00e1y, CO2 tho\u00e1t ra t\u1eeb canxi cacbonat c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 ch\u00e1y \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng kh\u00f4ng l\u00e0m cho kh\u00f3i d\u1eadp t\u1eaft. \u0110\u1ed3ng th\u1eddi, canxi cacbonat c\u00f3 th\u1ec3 gi\u1eef th\u00e0nh ph\u1ea7n tro sau khi \u0111\u1ed1t r\u1ea5t t\u1ed1t N\u00f3 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 tho\u00e1ng kh\u00ed c\u1ee7a gi\u1ea5y v\u00e0 gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng h\u1eafc \u00edn trong \u0111i\u1ebfu thu\u1ed1c l\u00e1.<\/p>\n

Trong gi\u1ea5y v\u1ec7 sinh cao c\u1ea5p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c s\u1ea3n ph\u1ea9m d\u00e0nh cho ph\u1ee5 n\u1eef, c\u00e1c s\u1ea3n ph\u1ea9m d\u00e0nh cho tr\u1ebb em nh\u01b0 b\u0103ng v\u1ec7 sinh, t\u00e3, b\u1ec9m v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c, nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 s\u1ea3n xu\u1ea5t m\u00e0ng polyetylen c\u00f3 kh\u1ea3 n\u0103ng th\u1ea5m kh\u00ed v\u00e0 ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc t\u1ed1t. Ngo\u00e0i ra, do k\u00edch th\u01b0\u1edbc h\u1ea1t nano canxi cacbonat nh\u1ecf n\u00ean s\u1ea3n ph\u1ea9m tinh t\u1ebf, kh\u00f4ng l\u00e0m t\u1ed5n th\u01b0\u01a1ng da, kh\u00f4ng g\u00e2y c\u1ea3m gi\u00e1c kh\u00f3 ch\u1ecbu cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a n\u00f3 trong l\u1edbp ph\u1ee7 gi\u1ea5y. Kh\u00e1c v\u1edbi ch\u1ea5t \u0111\u1ed9n l\u00e0m gi\u1ea5y, canxi cacbonat nano cho l\u1edbp ph\u1ee7 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n d\u01b0\u1edbi d\u1ea1ng b\u00f9n. \u01afu \u0111i\u1ec3m l\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 s\u1ea3n xu\u1ea5t, gi\u1ea3m gi\u00e1 th\u00e0nh, kh\u00f4ng b\u1ee5i v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u01a1m tr\u1ef1c ti\u1ebfp v\u00e0o s\u1eed d\u1ee5ng v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. Nano canxi cacbonat c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 tr\u1eafng, \u0111\u1ed9 m\u1ecbn, \u0111\u1ed9 b\u1ec1n b\u1ec1 m\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng h\u00fat m\u1ef1c c\u1ee7a gi\u1ea5y tr\u00e1ng do \u0111\u1ed9 tr\u1eafng cao, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn, ho\u1ea1t t\u00ednh cao v\u00e0 gia c\u01b0\u1eddng t\u1ed1t.<\/p>\n

\u1ede c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c nhau, y\u00eau c\u1ea7u v\u1ec1 h\u00ecnh d\u1ea1ng tinh th\u1ec3 nano canxi cacbonat c\u0169ng kh\u00e1c nhau. Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ch\u1ea5t \u0111\u1ed9n l\u00e0m gi\u1ea5y, ch\u00fang ch\u1ee7 y\u1ebfu c\u00f3 d\u1ea1ng tr\u1ee5c ch\u00ednh, d\u1ea1ng chu\u1ed7i v\u00e0 h\u00ecnh c\u1ea7u; khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong gi\u1ea5y thu\u1ed1c l\u00e1, ch\u00fang ch\u1ee7 y\u1ebfu l\u00e0 h\u00ecnh tr\u1ee5c ch\u00ednh v\u00e0 h\u00ecnh kim; khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 gi\u1ea5y, ch\u00fang ch\u1ee7 y\u1ebfu c\u00f3 d\u1ea1ng tr\u1ee5c ch\u00ednh, d\u1ea1ng t\u1ea5m v\u00e0 d\u1ea1ng kh\u1ed1i.<\/p>\n

Vi\u1ec7c \u1ee9ng d\u1ee5ng nano canxi cacbonat trong c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t gi\u1ea5y v\u1eabn c\u00f2n nhi\u1ec1u ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n. Do c\u00f2n nhi\u1ec1u v\u01b0\u1edbng m\u1eafc v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 v\u1ea5n \u0111\u1ec1 \u1ee9ng d\u1ee5ng c\u1ea7n gi\u1ea3i quy\u1ebft trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng n\u00ean s\u1ea3n ph\u1ea9m nano canxi cacbonat cao c\u1ea5p cho ng\u00e0nh gi\u1ea5y v\u1eabn ph\u1ea3i d\u1ef1a v\u00e0o nh\u1eadp kh\u1ea9u. Tuy nhi\u00ean, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t gi\u1ea5y, quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y \u0111\u00e3 thay \u0111\u1ed5i t\u1eeb k\u00edch th\u01b0\u1edbc axit sang k\u00edch th\u01b0\u1edbc trung t\u00ednh v\u00e0 ki\u1ec1m, t\u1ea1o c\u01a1 h\u1ed9i t\u1ed1t cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a canxi cacbonat trong s\u1ea3n xu\u1ea5t gi\u1ea5y, v\u00e0 vi\u1ec7c \u1ee9ng d\u1ee5ng nano canxi cacbonat s\u1ebd tr\u1edf n\u00ean nhi\u1ec1u h\u01a1n s\u00e2u r\u1ed9ng.<\/p>\n

C\u00f3 nhi\u1ec1u doanh nghi\u1ec7p tham gia v\u00e0o ng\u00e0nh nguy\u00ean li\u1ec7u, s\u1ea3n xu\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng trong d\u00e2y chuy\u1ec1n c\u00f4ng nghi\u1ec7p nano canxi cacbonat. \u0110\u1ec3 hi\u1ec7n th\u1ef1c h\u00f3a s\u1ef1 li\u00ean k\u1ebft c\u1ee7a chu\u1ed7i c\u00f4ng nghi\u1ec7p, vi\u1ec7c trao \u0111\u1ed5i v\u00e0 \u0111\u1ed5i m\u1edbi k\u1ef9 thu\u1eadt gi\u1eefa c\u00e1c doanh nghi\u1ec7p c\u00f3 li\u00ean quan l\u00e0 r\u1ea5t quan tr\u1ecdng. Ch\u1ec9 b\u1eb1ng c\u00e1ch \u0111\u00e1p \u1ee9ng nhu c\u1ea7u cung c\u1ea7u gi\u1eefa c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau v\u00e0 m\u1edf r\u1ed9ng th\u1ecb tr\u01b0\u1eddng, ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 \u0111\u00f4i b\u00ean c\u00f9ng c\u00f3 l\u1ee3i.<\/p>\n

Ngu\u1ed3n: Fan tiguo. \u0110i\u1ec1u ch\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng nano canxi cacbonat [D]. \u0110\u1ea1i h\u1ecdc c\u00f4ng ngh\u1ec7 H\u1ed3 B\u1eafc, 2018<\/p>\n","protected":false},"excerpt":{"rendered":"

Nano canxi cacbonat l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 ch\u1ee9c n\u0103ng c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1eeb 1-100nm. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cao su, nh\u1ef1a, s\u1ea3n xu\u1ea5t gi\u1ea5y, m\u1ef1c in, s\u01a1n, ch\u1ea5t tr\u00e1m v\u00e0 ch\u1ea5t k\u1ebft d\u00ednh, y h\u1ecdc, kem \u0111\u00e1nh r\u0103ng, th\u1ef1c ph\u1ea9m v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c. Tuy nhi\u00ean, c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau c\u00f3 c\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau v\u1ec1 k\u00edch th\u01b0\u1edbc h\u1ea1t, h\u00ecnh d\u1ea1ng tinh th\u1ec3, gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u v\u00e0 \u0111\u1ed9 ph\u00e2n t\u00e1n c\u1ee7a nano canxi cacbonat.<\/p>\n","protected":false},"author":6,"featured_media":84083,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[],"class_list":["post-99245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/99245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=99245"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/99245\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/84083"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=99245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=99245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=99245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}