{"id":114686,"date":"2021-12-02T14:23:45","date_gmt":"2021-12-02T06:23:45","guid":{"rendered":"https:\/\/www.alpapowder.com\/114686\/"},"modified":"2021-12-02T14:23:45","modified_gmt":"2021-12-02T06:23:45","slug":"ung-dung-cong-nghe-xay-sieu-min-trong-che-bien-thuc-pham","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/114686\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u00f4ng ngh\u1ec7 xay si\u00eau m\u1ecbn trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m"},"content":{"rendered":"

C\u00f4ng ngh\u1ec7 m\u00e0i si\u00eau m\u1ecbn l\u00e0 c\u00f4ng ngh\u1ec7 m\u1edbi \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n trong 20 n\u0103m tr\u1edf l\u1ea1i \u0111\u00e2y. C\u00e1i g\u1ecdi l\u00e0 m\u00e0i si\u00eau m\u1ecbn l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u1ecdc ho\u1eb7c th\u1ee7y \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u0111\u1ec3 v\u01b0\u1ee3t qua l\u1ef1c d\u00ednh b\u00ean trong c\u1ee7a ch\u1ea5t r\u1eafn \u0111\u1ec3 nghi\u1ec1n ch\u00fang, t\u1eeb \u0111\u00f3 m\u00e0i c\u00e1c h\u1ea1t v\u1eadt li\u1ec7u c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n 3 mm \u0111\u1ebfn 10-25 micr\u00f4m\u00e9t. L\u00e0 v\u1eadt li\u1ec7u ch\u1ebf bi\u1ebfn c\u00f4ng ngh\u1ec7 cao \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1edfi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 cao. B\u1ed9t si\u00eau m\u1ecbn l\u00e0 s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn. N\u00f3 c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u0111\u1eb7c bi\u1ec7t m\u00e0 c\u00e1c h\u1ea1t th\u00f4ng th\u01b0\u1eddng kh\u00f4ng c\u00f3 nh\u01b0 kh\u1ea3 n\u0103ng h\u00f2a tan, ph\u00e2n t\u00e1n, h\u1ea5p ph\u1ee5 v\u00e0 ho\u1ea1t \u0111\u1ed9ng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc t\u1ed1t. Do \u0111\u00f3, b\u1ed9t si\u00eau m\u1ecbn \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c nh\u01b0 th\u1ef1c ph\u1ea9m, h\u00f3a ch\u1ea5t, y h\u1ecdc, m\u1ef9 ph\u1ea9m, thu\u1ed1c tr\u1eeb s\u00e2u, thu\u1ed1c nhu\u1ed9m, ch\u1ea5t ph\u1ee7, \u0111i\u1ec7n t\u1eed v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n

\"\"<\/p>\n

1. T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt<\/h4>\n

T\u1ed1c \u0111\u1ed9 nhanh v\u00e0 m\u00e0i \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p: C\u00f4ng ngh\u1ec7 m\u00e0i si\u00eau m\u1ecbn s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p m\u00e0i tia si\u00eau \u00e2m, nghi\u1ec1n ngu\u1ed9i v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c, kh\u00e1c bi\u1ec7t ho\u00e0n to\u00e0n so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p m\u00e0i c\u01a1 h\u1ecdc thu\u1ea7n t\u00fay tr\u01b0\u1edbc \u0111\u00e2y. S\u1ebd kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 trong qu\u00e1 tr\u00ecnh xay, th\u1eadm ch\u00ed c\u00f3 th\u1ec3 xay \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. T\u1ed1c \u0111\u1ed9 nhanh v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh ngay l\u1eadp t\u1ee9c, do \u0111\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n ho\u1ea1t t\u00ednh sinh h\u1ecdc c\u1ee7a b\u1ed9t \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i \u1edf m\u1ee9c \u0111\u1ed9 l\u1edbn nh\u1ea5t, \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao theo y\u00eau c\u1ea7u.<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed3ng \u0111\u1ec1u: Do s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n d\u00f2ng kh\u00ed si\u00eau \u00e2m n\u00ean s\u1ef1 ph\u00e2n b\u1ed1 l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean nguy\u00ean li\u1ec7u kh\u00e1 \u0111\u1ed3ng \u0111\u1ec1u. Vi\u1ec7c thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i kh\u00f4ng ch\u1ec9 h\u1ea1n ch\u1ebf nghi\u00eam ng\u1eb7t c\u00e1c h\u1ea1t l\u1edbn m\u00e0 c\u00f2n tr\u00e1nh vi\u1ec7c nghi\u1ec1n qu\u00e1 k\u1ef9 v\u00e0 thu \u0111\u01b0\u1ee3c b\u1ed9t si\u00eau m\u1ecbn v\u1edbi s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u. \u0110\u1ed3ng th\u1eddi, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u1ee7a b\u1ed9t t\u0103ng l\u00ean r\u1ea5t nhi\u1ec1u, do \u0111\u00f3 \u0111\u1ed9 h\u1ea5p ph\u1ee5 v\u00e0 \u0111\u1ed9 h\u00f2a tan c\u0169ng t\u0103ng l\u00ean t\u01b0\u01a1ng \u1ee9ng.<\/p>\n

Ti\u1ebft ki\u1ec7m nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng: Sau khi v\u1eadt th\u1ec3 \u0111\u01b0\u1ee3c nghi\u1ec1n si\u00eau m\u1ecbn, b\u1ed9t si\u00eau m\u1ecbn v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t g\u1ea7n nanomet th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong s\u1ea3n xu\u1ea5t c\u00e1c ch\u1ebf ph\u1ea9m, trong khi c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n th\u00f4ng th\u01b0\u1eddng v\u1eabn c\u1ea7n m\u1ed9t s\u1ed1 li\u00ean k\u1ebft trung gian \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng v\u00e0 s\u1ea3n xu\u1ea5t tr\u1ef1c ti\u1ebfp, \u0110i\u1ec1u n\u00e0y d\u1ec5 g\u00e2y l\u00e3ng ph\u00ed nguy\u00ean v\u1eadt li\u1ec7u. V\u00ec v\u1eady, c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1eb7c bi\u1ec7t th\u00edch h\u1ee3p \u0111\u1ec3 nghi\u1ec1n c\u00e1c lo\u1ea1i nguy\u00ean li\u1ec7u th\u00f4 qu\u00fd hi\u1ebfm.<\/p>\n

Gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m: Qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong h\u1ec7 th\u1ed1ng kh\u00e9p k\u00edn, kh\u00f4ng ch\u1ec9 tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 \u00f4 nhi\u1ec5m c\u1ee7a m\u00f4i tr\u01b0\u1eddng xung quanh b\u1edfi b\u1ed9t vi sinh m\u00e0 c\u00f2n tr\u00e1nh \u0111\u01b0\u1ee3c b\u1ee5i b\u1ea9n trong kh\u00f4ng kh\u00ed l\u00e0m \u00f4 nhi\u1ec5m s\u1ea3n ph\u1ea9m. Do \u0111\u00f3, b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y trong c\u00e1c s\u1ea3n ph\u1ea9m y t\u1ebf v\u00e0 th\u1ef1c ph\u1ea9m, h\u00e0m l\u01b0\u1ee3ng vi sinh v\u1eadt v\u00e0 b\u1ee5i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

2. Ph\u01b0\u01a1ng ph\u00e1p m\u00e0i<\/h4>\n

Nghi\u1ec1n v\u1eeba nghi\u1ec1n: Nghi\u1ec1n v\u1eeba l\u00e0 qu\u00e1 tr\u00ecnh nghi\u1ec1n c\u00e1c h\u1ea1t v\u1eadt li\u1ec7u b\u1eb1ng t\u00e1c \u0111\u1ed9ng sinh ra c\u1ee7a m\u00f4i tr\u01b0\u1eddng nghi\u1ec1n chuy\u1ec3n \u0111\u1ed9ng (m\u00f4i tr\u01b0\u1eddng m\u00e0i) v\u00e0 c\u00e1c l\u1ef1c u\u1ed1n, \u00e9p, c\u1eaft kh\u00f4ng do va \u0111\u1eadp. Qu\u00e1 tr\u00ecnh nghi\u1ec1n b\u1ed9t gi\u1ea5y ch\u1ee7 y\u1ebfu l\u00e0 nghi\u1ec1n v\u00e0 ma s\u00e1t, c\u1ee5 th\u1ec3 l\u00e0 \u0111\u00f9n v\u00e0 c\u1eaft. T\u00e1c d\u1ee5ng c\u1ee7a n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc, h\u00ecnh d\u1ea1ng, t\u1ef7 l\u1ec7, ch\u1ebf \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng, t\u1ef7 l\u1ec7 l\u1ea5p \u0111\u1ea7y c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a qu\u00e1 tr\u00ecnh m\u00e0i v\u1eadt li\u1ec7u. C\u00f3 ba lo\u1ea1i thi\u1ebft b\u1ecb nghi\u1ec1n ph\u01b0\u01a1ng ti\u1ec7n \u0111i\u1ec3n h\u00ecnh: m\u00e1y nghi\u1ec1n bi, m\u00e1y khu\u1ea5y v\u00e0 m\u00e1y nghi\u1ec1n rung.<\/p>\n

M\u00e1y nghi\u1ec1n bi l\u00e0 thi\u1ebft b\u1ecb truy\u1ec1n th\u1ed1ng d\u00f9ng \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn, k\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u1ea1t 20-40 micron. Khi k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u d\u01b0\u1edbi 20 micron th\u00ec hi\u1ec7u su\u1ea5t th\u1ea5p, ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng l\u1edbn, th\u1eddi gian x\u1eed l\u00fd k\u00e9o d\u00e0i. M\u00e1y khu\u1ea5y tr\u1ed9n \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n tr\u00ean c\u01a1 s\u1edf m\u00e1y nghi\u1ec1n bi, ch\u1ee7 y\u1ebfu bao g\u1ed3m th\u00f9ng nghi\u1ec1n, m\u00e1y khu\u1ea5y, m\u00e1y ph\u00e2n t\u00e1n, m\u00e1y t\u00e1ch v\u00e0 b\u01a1m c\u1ea5p li\u1ec7u. Khi l\u00e0m vi\u1ec7c, d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c ly t\u00e2m sinh ra b\u1edfi t\u1ed1c \u0111\u1ed9 quay cao c\u1ee7a b\u1ed9 ph\u00e2n t\u00e1n, m\u00f4i tr\u01b0\u1eddng nghi\u1ec1n v\u00e0 b\u00f9n h\u1ea1t t\u1ea1o ra va \u0111\u1eadp, ma s\u00e1t v\u00e0 \u00e9p \u0111\u1ec3 nghi\u1ec1n h\u1ea1t. M\u00e1y khu\u1ea5y tr\u1ed9n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 si\u00eau vi m\u00f4 v\u00e0 \u0111\u1ed3ng nh\u1ea5t c\u1ee7a c\u00e1c h\u1ea1t s\u1ea3n ph\u1ea9m, v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh c\u1ee7a th\u00e0nh ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u1ea1t \u00edt nh\u1ea5t v\u00e0i micromet. M\u00e1y nghi\u1ec1n rung l\u00e0 \u0111\u1ec3 nghi\u1ec1n c\u00e1c h\u1ea1t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u1eaft va \u0111\u1eadp, ma s\u00e1t v\u00e0 \u00e9p \u0111\u00f9n t\u1ea1o ra b\u1edfi dao \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao c\u1ee7a m\u00f4i tr\u01b0\u1eddng nghi\u1ec1n. K\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh c\u1ee7a th\u00e0nh ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1eeb 2-3 micron tr\u1edf xu\u1ed1ng, v\u00e0 hi\u1ec7u su\u1ea5t nghi\u1ec1n th\u00e0nh b\u1ed9t cao h\u01a1n nhi\u1ec1u so v\u1edbi m\u00e1y nghi\u1ec1n bi. N\u0103ng su\u1ea5t x\u1eed l\u00fd g\u1ea5p h\u01a1n 10 l\u1ea7n m\u00e1y nghi\u1ec1n bi c\u00f3 c\u00f9ng c\u00f4ng su\u1ea5t.<\/p>\n

Xay si\u00eau m\u1ecbn d\u00f2ng kh\u00ed: M\u00e1y nghi\u1ec1n tia c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn. N\u00f3 s\u1eed d\u1ee5ng kh\u00ed n\u00e9n ho\u1eb7c h\u01a1i n\u01b0\u1edbc qu\u00e1 nhi\u1ec7t v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed h\u1ed7n lo\u1ea1n cao si\u00eau \u00e2m \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi v\u00f2i phun l\u00e0m ch\u1ea5t mang c\u00e1c h\u1ea1t v\u00e0 t\u1ed3n \u0111\u1ecdng t\u00e1c \u0111\u1ed9ng x\u1ea3y ra gi\u1eefa c\u00e1c h\u1ea1t ho\u1eb7c gi\u1eefa c\u00e1c h\u1ea1t v\u00e0 t\u1ea5m c\u1ed1 \u0111\u1ecbnh, ma s\u00e1t v\u00e0 c\u1eaft, v.v. \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch nghi\u1ec1n. C\u00f3 s\u00e1u lo\u1ea1i m\u00e1y m\u00e0i th\u00e9p kh\u00f4ng g\u1ec9 ch\u00ednh: lo\u1ea1i \u0111\u0129a, lo\u1ea1i \u1ed1ng tu\u1ea7n ho\u00e0n, lo\u1ea1i \u0111\u00edch, lo\u1ea1i va ch\u1ea1m, lo\u1ea1i t\u00e1c \u0111\u1ed9ng quay v\u00e0 lo\u1ea1i t\u1ea7ng s\u00f4i. So v\u1edbi m\u00e1y nghi\u1ec1n b\u1ed9t th\u00e9p kh\u00f4ng g\u1ec9 si\u00eau m\u1ecbn c\u01a1 h\u1ecdc th\u00f4ng th\u01b0\u1eddng, m\u00e1y nghi\u1ec1n b\u1ed9t th\u00e9p kh\u00f4ng g\u1ec9 d\u00f2ng kh\u00ed c\u00f3 th\u1ec3 nghi\u1ec1n s\u1ea3n ph\u1ea9m r\u1ea5t m\u1ecbn (\u0111\u1ed9 m\u1ecbn c\u1ee7a b\u1ed9t c\u00f3 th\u1ec3 \u0111\u1ea1t 2-40 micron), v\u00e0 ph\u1ea1m vi ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t h\u1eb9p h\u01a1n, t\u1ee9c l\u00e0 h\u1ea1t k\u00edch th\u01b0\u1edbc \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n. Do kh\u00ed n\u1edf ra \u1edf v\u00f2i phun l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9, kh\u00f4ng c\u00f3 nhi\u1ec7t \u0111i k\u00e8m trong qu\u00e1 tr\u00ecnh nghi\u1ec1n n\u00ean \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 nghi\u1ec1n r\u1ea5t th\u1ea5p. T\u00ednh n\u0103ng n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn c\u00e1c v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 n\u00f3ng ch\u1ea3y th\u1ea5p v\u00e0 nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t. Tuy nhi\u00ean, n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n b\u1eb1ng tia kh\u00ed l\u1edbn, v\u00e0 t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng ch\u1ec9 kho\u1ea3ng 2%, cao h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n kh\u00e1c.<\/p>\n

\u0110i\u1ec3m \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 ng\u01b0\u1eddi ta th\u01b0\u1eddng tin r\u1eb1ng k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a s\u1ea3n ph\u1ea9m t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u, t\u1ee9c l\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u c\u00e0ng l\u1edbn th\u00ec k\u00edch th\u01b0\u1edbc h\u1ea1t s\u1ea3n ph\u1ea9m c\u00e0ng l\u1edbn. S\u1ef1 hi\u1ec3u bi\u1ebft n\u00e0y l\u00e0 kh\u00f4ng to\u00e0n di\u1ec7n. Tuy\u00ean b\u1ed1 n\u00e0y l\u00e0 h\u1ee3p l\u00fd khi t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u ho\u1eb7c n\u1ed3ng \u0111\u1ed9 h\u1ea1t trong m\u00e1y nghi\u1ec1n b\u1ed9t th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t gi\u00e1 tr\u1ecb nh\u1ea5t \u0111\u1ecbnh. B\u1edfi v\u00ec t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u t\u0103ng l\u00ean, n\u1ed3ng \u0111\u1ed9 h\u1ea1t trong m\u00e1y nghi\u1ec1n b\u1ed9t th\u00e9p kh\u00f4ng g\u1ec9 c\u0169ng t\u0103ng l\u00ean v\u00e0 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f4ng h\u1ea1t. Th\u1eadm ch\u00ed c\u00e1c h\u1ea1t ch\u1ea3y ra nh\u01b0 m\u1ed9t p\u00edt t\u00f4ng. Ch\u1ec9 c\u00e1c h\u1ea1t \u1edf ph\u00eda tr\u01b0\u1edbc c\u1ee7a “p\u00edt t\u00f4ng” m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng va ch\u1ea1m hi\u1ec7u qu\u1ea3. C\u00e1c h\u1ea1t ch\u1ec9 va ch\u1ea1m v\u00e0 c\u1ecd x\u00e1t v\u1edbi nhau \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p, v\u00e0 sinh ra nhi\u1ec7t. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 n\u1ed3ng \u0111\u1ed9 h\u1ea1t c\u00e0ng nh\u1ecf th\u00ec k\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m c\u00e0ng nh\u1ecf ho\u1eb7c hi\u1ec7u su\u1ea5t nghi\u1ec1n c\u00e0ng cao. Ng\u01b0\u1ee3c l\u1ea1i, khi n\u1ed3ng \u0111\u1ed9 h\u1ea1t th\u1ea5p \u0111\u1ebfn m\u1ed9t m\u1ee9c nh\u1ea5t \u0111\u1ecbnh th\u00ec gi\u1eefa c\u00e1c h\u1ea1t s\u1ebd kh\u00f4ng x\u1ea3y ra va ch\u1ea1m v\u00e0 hi\u1ec7u su\u1ea5t nghi\u1ec1n b\u1ecb gi\u1ea3m.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00f4ng ngh\u1ec7 m\u00e0i si\u00eau m\u1ecbn l\u00e0 c\u00f4ng ngh\u1ec7 m\u1edbi \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n trong 20 n\u0103m tr\u1edf l\u1ea1i \u0111\u00e2y. C\u00e1i g\u1ecdi l\u00e0 m\u00e0i si\u00eau m\u1ecbn l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u1ecdc ho\u1eb7c th\u1ee7y \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u0111\u1ec3 v\u01b0\u1ee3t qua l\u1ef1c d\u00ednh b\u00ean trong c\u1ee7a ch\u1ea5t r\u1eafn \u0111\u1ec3 nghi\u1ec1n ch\u00fang, t\u1eeb \u0111\u00f3 m\u00e0i c\u00e1c h\u1ea1t v\u1eadt li\u1ec7u c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n 3 mm \u0111\u1ebfn 10-25 micr\u00f4m\u00e9t.<\/p>\n","protected":false},"author":6,"featured_media":84037,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[1666,887],"class_list":["post-114686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi","tag-che-bien-thuc-an","tag-xay-sieu-min"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/114686","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=114686"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/114686\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/84037"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=114686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=114686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=114686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}