{"id":126069,"date":"2023-03-09T14:04:12","date_gmt":"2023-03-09T06:04:12","guid":{"rendered":"https:\/\/www.alpapowder.com\/126069\/"},"modified":"2023-03-09T14:04:13","modified_gmt":"2023-03-09T06:04:13","slug":"bon-xu-huong-phat-trien-chinh-cua-cong-nghe-canxi-cacbonat-de-san-xuat-giay","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/126069\/","title":{"rendered":"B\u1ed1n xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n ch\u00ednh c\u1ee7a c\u00f4ng ngh\u1ec7 canxi cacbonat \u0111\u1ec3 s\u1ea3n xu\u1ea5t gi\u1ea5y"},"content":{"rendered":"

\"\"<\/p>\n

L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t gi\u1ea5y v\u00e0 ch\u1ea5t m\u00e0u ph\u1ee7, canxi cacbonat \u0111\u00e3 cho th\u1ea5y nh\u1eefng \u01b0u \u0111i\u1ec3m \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3 v\u00e0 c\u00f3 ti\u1ec1m n\u0103ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n. Khi ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y c\u00f3 y\u00eau c\u1ea7u kh\u1eaft khe h\u01a1n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 ch\u1ee7ng lo\u1ea1i s\u1ea3n ph\u1ea9m \u0111a d\u1ea1ng h\u01a1n, vi\u1ec7c bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t, c\u00f4ng ngh\u1ec7 nano, chuy\u00ean m\u00f4n h\u00f3a v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat m\u1edbi s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t h\u01b0\u1edbng ph\u00e1t tri\u1ec3n m\u1edbi c\u1ee7a c\u00f4ng ngh\u1ec7 s\u1ea3n ph\u1ea9m canxi cacbonat.<\/p>\n

1. S\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t<\/p>\n

Canxi cacbonat l\u00e0 ch\u1ea5t v\u00f4 c\u01a1, b\u1ec1 m\u1eb7t h\u1ea1t ph\u00e2n c\u1ef1c, \u01b0a n\u01b0\u1edbc v\u00e0 k\u1ef5 d\u1ea7u, c\u00f3 t\u00ednh k\u1ebft t\u1ee5, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch k\u00e9m v\u1edbi polyme h\u1eefu c\u01a1, ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u1ec1u trong v\u1eadt li\u1ec7u g\u1ed1c polyme, l\u1ef1c li\u00ean k\u1ebft th\u1ea5p, d\u1ec5 t\u1ea1o ra c\u00e1c khuy\u1ebft t\u1eadt d\u1eabn \u0111\u1ebfn s\u1ea3n ph\u1ea9m kh\u00f4ng \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng. Canxi cacbonat kh\u00f4ng bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t d\u00f9ng l\u00e0m ch\u1ea5t \u0111\u1ed9n t\u1ea1o gi\u1ea5y c\u00f3 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 l\u1ef1c li\u00ean k\u1ebft v\u1edbi x\u01a1 b\u1ed9t gi\u1ea5y k\u00e9m, t\u1ef7 l\u1ec7 l\u01b0u gi\u1eef trong gi\u1ea5y th\u1ea5p, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a gi\u1ea5y gi\u1ea3m. Do \u0111\u00f3, canxi cacbonat c\u1ea7n \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t \u0111\u1ec3 s\u1eed d\u1ee5ng t\u1ed1t h\u01a1n trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y.<\/p>\n

Qu\u00e1 tr\u00ecnh s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a canxi cacbonat ch\u1ee7 y\u1ebfu bao g\u1ed3m qu\u00e1 tr\u00ecnh s\u1eeda \u0111\u1ed5i kh\u00f4, qu\u00e1 tr\u00ecnh s\u1eeda \u0111\u1ed5i \u01b0\u1edbt v\u00e0 qu\u00e1 tr\u00ecnh s\u1eeda \u0111\u1ed5i t\u1ea1i ch\u1ed7. N\u00f3i chung, canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng c\u00e1ch nghi\u1ec1n kh\u00f4 th\u00f4ng qua quy tr\u00ecnh bi\u1ebfn t\u00ednh kh\u00f4 v\u00e0 canxi n\u1eb7ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng c\u00e1ch nghi\u1ec1n \u01b0\u1edbt th\u00f4ng qua quy tr\u00ecnh bi\u1ebfn t\u00ednh \u01b0\u1edbt. Canxi cacbonat nh\u1eb9 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc, th\u01b0\u1eddng s\u1eed d\u1ee5ng quy tr\u00ecnh bi\u1ebfn \u0111\u1ed5i t\u1ea1i ch\u1ed7. C\u00e1c ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh b\u1ec1 m\u1eb7t canxi cacbonat \u0111\u1ec3 s\u1ea3n xu\u1ea5t gi\u1ea5y ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c ch\u1ea5t li\u00ean k\u1ebft, polyme v\u00e0 c\u00e1c ch\u1ea5t v\u00f4 c\u01a1.<\/p>\n

2. Nano h\u00f3a<\/p>\n

Sau khi th\u00eam ch\u1ea5t \u0111\u1ed9n nano canxi cacbonat trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y, gi\u1ea5y c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau: c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a c\u1ee7a gi\u1ea5y, \u0111\u1ec3 gi\u1ea5y c\u00f3 th\u1ec3 b\u1ea3o qu\u1ea3n \u0111\u01b0\u1ee3c l\u00e2u h\u01a1n; n\u00f3 c\u00f3 th\u1ec3 l\u00e0m cho gi\u1ea5y h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng tia c\u1ef1c t\u00edm nh\u1ea5t \u0111\u1ecbnh; n\u00f3 l\u00e0m cho gi\u1ea5y kh\u00f4ng d\u1ec5 ng\u1ea3 v\u00e0ng ho\u1eb7c phai m\u00e0u Gi\u00f2n v\u00e0 c\u00f3 \u0111\u1eb7c t\u00ednh c\u00e1ch ly t\u1ed1t, v.v.<\/p>\n

Nano-canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0u ph\u1ee7 gi\u1ea5y, c\u00f3 l\u1ee3i trong vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 tr\u1eafng v\u00e0 m\u00e0u s\u1eafc c\u1ee7a gi\u1ea5y tr\u00e1ng; n\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a m\u00e0u s\u1eafc t\u1ed1 tr\u1eafng; n\u00f3 c\u00f3 l\u1ee3i \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 m\u1edd, \u0111\u1ed9 b\u00f3ng v\u00e0 \u0111\u1ed9 b\u00f3ng in c\u1ee7a gi\u1ea5y, v.v. T\u00ednh ch\u1ea5t quang h\u1ecdc; c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00ednh ch\u1ea5t l\u01b0u bi\u1ebfn c\u1ee7a dung d\u1ecbch chu\u1ea9n b\u1ecb l\u1edbp ph\u1ee7; th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng h\u00f3a c\u1ee7a gi\u1ea5y ph\u1ee7, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1ch nhi\u1ec7t, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n, \u0111\u1eb7c t\u00ednh kh\u00e1ng khu\u1ea9n, v.v.<\/p>\n

L\u00e0 ch\u1ea5t \u0111\u1ed9n s\u1ea3n xu\u1ea5t gi\u1ea5y, canxi cacbonat nano th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m gi\u1ea5y \u0111\u1eb7c bi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00e3 gi\u1ea5y, b\u0103ng v\u1ec7 sinh, gi\u1ea5y in phun m\u00e0u, kh\u0103n gi\u1ea5y v\u00e0 m\u00e0ng tho\u00e1ng kh\u00ed.<\/p>\n

3. Chuy\u00ean ng\u00e0nh<\/p>\n

C\u00e1c lo\u1ea1i gi\u1ea5y kh\u00e1c nhau c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t kh\u00e1c nhau v\u00e0 y\u00eau c\u1ea7u c\u00e1c t\u00ednh ch\u1ea5t canxi cacbonat kh\u00e1c nhau. \u0110\u1ec3 n\u00e2ng cao gi\u00e1 tr\u1ecb kinh t\u1ebf, c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m canxi cacbonat t\u01b0\u01a1ng \u1ee9ng cho m\u1ed9t lo\u1ea1i gi\u1ea5y nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3m gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t \u0111\u1ed3ng th\u1eddi \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng.<\/p>\n

Gi\u1ea5y thu\u1ed1c l\u00e1 cao c\u1ea5p y\u00eau c\u1ea7u canxi cacbonat nh\u1eb9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n ph\u1ea3i c\u00f3 d\u1ea1ng tinh th\u1ec3 h\u00ecnh tr\u1ee5c ch\u00ednh t\u01b0\u01a1ng \u0111\u1ed1i ho\u00e0n ch\u1ec9nh, v\u1edbi c\u00e1c h\u1ea1t tinh th\u1ec3 \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 c\u00f3 tr\u1eadt t\u1ef1; k\u00edch th\u01b0\u1edbc h\u1ea1t ph\u00e2n b\u1ed1 ch\u1ee7 y\u1ebfu kho\u1ea3ng 1-2 \u03bcm, kh\u00f4ng c\u00f3 h\u1ea1t k\u00edch th\u01b0\u1edbc l\u1edbn (>5 \u03bcm); v\u00e0 Hi\u1ec7u su\u1ea5t ph\u00e2n t\u00e1n v\u00e0 li\u00ean k\u1ebft t\u1ed1t trong b\u1ed9t gi\u1ea5y.<\/p>\n

4. Ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m m\u1edbi canxi cacbonat<\/p>\n

(1) h\u1ed7n h\u1ee3p canxi cacbonat<\/p>\n

Canxi cacbonat h\u1ed7n h\u1ee3p (HCC) l\u00e0 s\u1eed d\u1ee5ng polyme ion \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf h\u1ed7n h\u1ee3p canxi cacbonat v\u00e0 canxi oxit th\u00e0nh c\u00e1c ch\u1ea5t k\u1ebft t\u1ee5 tr\u01b0\u1edbc, sau \u0111\u00f3 x\u1eed l\u00fd c\u00e1c ch\u1ea5t k\u1ebft t\u1ee5 tr\u01b0\u1edbc b\u1eb1ng carbon dioxide \u0111\u1ec3 t\u1ea1o th\u00e0nh canxi cacbonat m\u1edbi gi\u1eefa GCC v\u00e0 cu\u1ed1i c\u00f9ng t\u1ea1o th\u00e0nh canxi axit cacbonic c\u00e1c s\u1ea3n ph\u1ea9m. Quy tr\u00ecnh chu\u1ea9n b\u1ecb canxi cacbonat sau tr\u1ed9n g\u1ea7n gi\u1ed1ng v\u1edbi quy tr\u00ecnh chu\u1ea9n b\u1ecb HCC, ngo\u1ea1i tr\u1eeb c\u1ed1t li\u1ec7u \u0111\u1ea7u ti\u00ean ch\u1ec9 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh t\u1eeb canxi cacbonat nghi\u1ec1n, v\u00e0 sau khi \u0111i\u1ec1u ch\u1ebf canxi cacbonat nghi\u1ec1n tr\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf, c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng canxi oxit nh\u01b0 quy tr\u00ecnh HCC \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, sau \u0111\u00f3 carbon dioxide \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o. Canxi cacbonat m\u1edbi \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u1edf b\u00ean ngo\u00e0i c\u1ed1t li\u1ec7u \u0111\u1ea7u ti\u00ean c\u1ee7a GCC v\u00e0 s\u1ea3n ph\u1ea9m canxi cacbonat cu\u1ed1i c\u00f9ng l\u00e0 canxi cacbonat sau tr\u1ed9n (PostHCC ho\u1eb7c pHCC).<\/p>\n

(2) R\u00e2u canxi cacbonat<\/p>\n

R\u00e2u canxi cacbonat thu\u1ed9c c\u1ea5u tr\u00fac tinh th\u1ec3 canxi cacbonat aragonit, c\u00f3 m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i cao, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 c\u00e1ch nhi\u1ec7t v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh t\u1ed1t kh\u00e1c, \u0111\u1ed3ng th\u1eddi c\u00f3 v\u1eadt li\u1ec7u r\u00e2u v\u1edbi t\u1ef7 l\u1ec7 khung h\u00ecnh l\u1edbn, s\u1ee3i ng\u1eafn v\u00e0 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf (c\u1ea5p \u0111\u1ed9 Micron) v\u00e0 \u0111\u1eb7c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 cao. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t gi\u1ea5y, v\u1eadt li\u1ec7u xi m\u0103ng, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, s\u01a1n ph\u1ee7 v\u00e0 v\u1eadt li\u1ec7u s\u1ea3n xu\u1ea5t \u00f4 t\u00f4.<\/p>\n","protected":false},"excerpt":{"rendered":"

L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t gi\u1ea5y v\u00e0 ch\u1ea5t m\u00e0u ph\u1ee7, canxi cacbonat \u0111\u00e3 cho th\u1ea5y nh\u1eefng \u01b0u \u0111i\u1ec3m \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3 v\u00e0 c\u00f3 ti\u1ec1m n\u0103ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n.<\/p>\n","protected":false},"author":7,"featured_media":126031,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-126069","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/126069","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\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=126069"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/126069\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/126031"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=126069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=126069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=126069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}