{"id":136913,"date":"2026-03-03T11:35:06","date_gmt":"2026-03-03T03:35:06","guid":{"rendered":"https:\/\/www.alpapowder.com\/136913\/"},"modified":"2026-03-03T11:35:06","modified_gmt":"2026-03-03T03:35:06","slug":"lam-the-nao-de-giai-quyet-cac-van-de-ve-phan-tan-va-kich-thuoc-hat-lon-cua-bot-talc-dung-trong-son-phu","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/136913\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u00e2n t\u00e1n v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn c\u1ee7a b\u1ed9t talc d\u00f9ng trong s\u01a1n ph\u1ee7?"},"content":{"rendered":"

\"\"<\/p>\n

B\u1ed9t talc, m\u1ed9t ch\u1ea5t \u0111\u1ed9n ch\u1ee9c n\u0103ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n ph\u1ee7, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a m\u00e0ng s\u01a1n, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 nh\u1edbt v\u00e0 gi\u1ea3m chi ph\u00ed. Tuy nhi\u00ean, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n k\u00e9m v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn c\u1ee7a n\u00f3 trong h\u1ec7 th\u1ed1ng s\u01a1n ph\u1ee7 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh khi b\u1ea3o qu\u1ea3n, hi\u1ec7u su\u1ea5t thi c\u00f4ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u00e0ng s\u01a1n ph\u1ee7 cu\u1ed1i c\u00f9ng.<\/p>\n

1. X\u1eed l\u00fd v\u00e0 l\u1ef1a ch\u1ecdn b\u1ed9t<\/p>\n

Bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t: N\u00ean s\u1eed d\u1ee5ng b\u1ed9t talc \u0111\u00e3 qua x\u1eed l\u00fd b\u1ec1 m\u1eb7t. Ph\u1ee7 b\u1eb1ng ch\u1ea5t li\u00ean k\u1ebft silan, ch\u1ea5t li\u00ean k\u1ebft titanat ho\u1eb7c axit stearic c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u00e1i l\u1ef1c c\u1ee7a n\u00f3 v\u1edbi c\u00e1c g\u1ed1c polymer, v\u1ec1 c\u01a1 b\u1ea3n l\u00e0m gi\u1ea3m xu h\u01b0\u1edbng v\u00f3n c\u1ee5c.<\/p>\n

Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc v\u00e0 ph\u00e2n b\u1ed1 h\u1ea1t: Tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t ban \u0111\u1ea7u qu\u00e1 r\u1ed9ng ho\u1eb7c ch\u1ee9a c\u00e1c h\u1ea1t si\u00eau th\u00f4 (>45\u03bcm). B\u1ed9t talc si\u00eau m\u1ecbn ph\u00e2n b\u1ed1 h\u1eb9p (v\u00ed d\u1ee5: D50 t\u1eeb 5-15\u03bcm) th\u01b0\u1eddng c\u00f3 ti\u1ec1m n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t h\u01a1n.<\/p>\n

2. L\u1ef1a ch\u1ecdn v\u00e0 C\u00f4ng th\u1ee9c Ch\u1ea5t Ph\u00e2n T\u00e1n Hi\u1ec7u Qu\u1ea3 Cao<\/p>\n

Vai tr\u00f2 c\u1ee7a ch\u1ea5t ph\u00e2n t\u00e1n l\u00e0 l\u00e0m \u01b0\u1edbt v\u00e0 ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m h\u1ea1t, \u0111\u1ed3ng th\u1eddi duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh th\u00f4ng qua c\u1ea3n tr\u1edf kh\u00f4ng gian ho\u1eb7c l\u1ef1c \u0111\u1ea9y t\u0129nh \u0111i\u1ec7n.<\/p>\n

(1) H\u1ec7 th\u1ed1ng g\u1ed1c n\u01b0\u1edbc<\/p>\n

Polyacrylate: \u0110a d\u1ee5ng, cung c\u1ea5p s\u1ef1 \u1ed5n \u0111\u1ecbnh t\u0129nh \u0111i\u1ec7n; c\u1ea7n xem x\u00e9t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh pH v\u00e0 \u0111i\u1ec7n gi\u1ea3i.<\/p>\n

Copolyme kh\u1ed1i: V\u00ed d\u1ee5 nh\u01b0 polyether-polyurethane, cung c\u1ea5p s\u1ef1 \u1ed5n \u0111\u1ecbnh kh\u00f4ng gian m\u1ea1nh, b\u00e1m ch\u1eafc v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t k\u1ef5 n\u01b0\u1edbc (nh\u01b0 b\u1ed9t talc), v\u00e0 th\u1ec3 hi\u1ec7n hi\u1ec7u qu\u1ea3 ch\u1ed1ng k\u1ebft t\u1ee5 t\u1ed1t, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u1ea1t l\u1edbn.<\/p>\n

Chi\u1ebfn l\u01b0\u1ee3c ph\u1ed1i h\u1ee3p: C\u00e1c ch\u1ea5t l\u00e0m \u01b0\u1edbt (nh\u01b0 diol acetylenic) th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c ch\u1ea5t ph\u00e2n t\u00e1n c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng ph\u00e2n t\u1eed cao \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa kh\u1ea3 n\u0103ng l\u00e0m \u01b0\u1edbt nhanh v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i.<\/p>\n

(2) H\u1ec7 th\u1ed1ng g\u1ed1c dung m\u00f4i<\/p>\n

Ch\u1ea5t ph\u00e2n t\u00e1n axit\/ki\u1ec1m: Ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi b\u1ec1 m\u1eb7t b\u1ed9t talc th\u00f4ng qua c\u00e1c nh\u00f3m neo; c\u00e1c copolyme kh\u1ed1i c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng ph\u00e2n t\u1eed cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n

C\u00e1c ch\u1ec9 s\u1ed1 \u0111\u00e1nh gi\u00e1 ch\u00ednh: C\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a ch\u1ea5t ph\u00e2n t\u00e1n (nh\u00f3m neo v\u00e0 chi\u1ec1u d\u00e0i chu\u1ed7i solvat h\u00f3a), li\u1ec1u l\u01b0\u1ee3ng (\u0111i\u1ec3m t\u1ed1i \u01b0u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng \u0111\u01b0\u1eddng cong h\u1ea5p ph\u1ee5), v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ec7 th\u1ed1ng.<\/p>\n

T\u1ed1i \u01b0u h\u00f3a ch\u00ednh x\u00e1c quy tr\u00ecnh ph\u00e2n t\u00e1n<\/p>\n

Quy tr\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m h\u1ea1t v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e2n t\u00e1ch c\u00e1c h\u1ea1t s\u01a1 c\u1ea5p.<\/p>\n

(1) Giai \u0111o\u1ea1n ti\u1ec1n ph\u00e2n t\u00e1n (l\u00e0m \u01b0\u1edbt)<\/p>\n

S\u1eed d\u1ee5ng m\u00e1y ph\u00e2n t\u00e1n t\u1ed1c \u0111\u1ed9 cao, t\u1eeb t\u1eeb th\u00eam b\u1ed9t talc v\u00e0o h\u1ed7n h\u1ee3p dung m\u00f4i\/ch\u1ea5t n\u1ec1n \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 b\u1ed9t \u0111\u01b0\u1ee3c ng\u00e2m trong ch\u1ea5t l\u1ecfng, t\u1ea1o th\u00e0nh m\u1ed9t h\u1ed7n h\u1ee3p \u0111\u1ed3ng nh\u1ea5t. N\u00ean tr\u00e1nh t\u1ed1c \u0111\u1ed9 cao trong giai \u0111o\u1ea1n n\u00e0y \u0111\u1ec3 ng\u0103n ng\u1eeba b\u1ee5i v\u00e0 b\u1ecdt kh\u00ed.<\/p>\n

M\u00e1y tr\u1ed9n h\u00e0nh tinh c\u00f3 th\u1ec3 nh\u00e0o v\u00e0 tr\u1ed9n c\u00e1c h\u1ea1t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m h\u1ea1t \u0111\u00f3ng ch\u1eb7t.<\/p>\n

(2) Giai \u0111o\u1ea1n nghi\u1ec1n v\u00e0 ph\u00e2n t\u00e1n hi\u1ec7u qu\u1ea3 cao<\/p>\n

M\u00e1y nghi\u1ec1n c\u00e1t\/m\u00e1y nghi\u1ec1n bi: Thi\u1ebft b\u1ecb hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c h\u1ea1t l\u1edbn c\u00f3 k\u00edch th\u01b0\u1edbc micromet.<\/p>\n

(1) Giai \u0111o\u1ea1n nghi\u1ec1n v\u00e0 ph\u00e2n t\u00e1n hi\u1ec7u qu\u1ea3 cao V\u1eadt li\u1ec7u nghi\u1ec1n: S\u1eed d\u1ee5ng c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n (v\u00ed d\u1ee5: h\u1ea1t zirconia 0,4-0,8mm) v\u00e0 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n \u0111\u1ec3 t\u0103ng t\u1ea7n su\u1ea5t va ch\u1ea1m v\u00e0 l\u1ef1c c\u1eaft.<\/p>\n

T\u1ed1c \u0111\u1ed9 tuy\u1ebfn t\u00ednh c\u1ee7a r\u00f4to: Duy tr\u00ec \u1edf ph\u1ea1m vi c\u1eaft cao (th\u01b0\u1eddng >10m\/s).<\/p>\n

S\u1ed1 l\u1ea7n nghi\u1ec1n: Th\u00f4ng th\u01b0\u1eddng c\u1ea7n 2-4 chu k\u1ef3 t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc h\u1ea1t ban \u0111\u1ea7u v\u00e0 \u0111\u1ed9 m\u1ecbn m\u1ee5c ti\u00eau. Gi\u00e1m s\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t tr\u1ef1c tuy\u1ebfn cho ph\u00e9p ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u0111i\u1ec3m k\u1ebft th\u00fac.<\/p>\n

M\u00e1y nghi\u1ec1n ba tr\u1ee5c: Tuy\u1ec7t v\u1eddi cho c\u00e1c h\u1ed7n h\u1ee3p c\u00f3 \u0111\u1ed9 nh\u1edbt cao v\u00e0 lo\u1ea1i b\u1ecf m\u1ed9t l\u01b0\u1ee3ng r\u1ea5t nh\u1ecf c\u00e1c h\u1ea1t th\u00f4 (c\u1eb7n s\u00e0ng).<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p gi\u00e1m s\u00e1t v\u00e0 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng<\/p>\n

1. Ph\u00e2n t\u00edch k\u00edch th\u01b0\u1edbc h\u1ea1t<\/p>\n

M\u00e1y ph\u00e2n t\u00edch k\u00edch th\u01b0\u1edbc h\u1ea1t b\u1eb1ng laser: Gi\u00e1m s\u00e1t s\u1ef1 thay \u0111\u1ed5i ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t trong su\u1ed1t qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, t\u1eadp trung v\u00e0o D97, D100 v\u00e0 xu h\u01b0\u1edbng \u0111u\u00f4i c\u1ee7a c\u00e1c h\u1ea1t l\u1edbn. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 ph\u00e2n t\u00e1n.<\/p>\n

M\u00e1y \u0111o \u0111\u1ed9 m\u1ecbn Hegmann d\u1ea1ng t\u1ea5m\/c\u1ea1o: \u0110\u00e1nh gi\u00e1 nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1ed1i \u0111a, ph\u00f9 h\u1ee3p cho vi\u1ec7c ki\u1ec3m so\u00e1t s\u1ea3n xu\u1ea5t t\u1ea1i ch\u1ed7. M\u1ee5c ti\u00eau l\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 m\u1ecbn d\u01b0\u1edbi gi\u00e1 tr\u1ecb m\u1ee5c ti\u00eau (v\u00ed d\u1ee5: \u226425\u03bcm).<\/p>\n

2. Quan s\u00e1t h\u00ecnh th\u00e1i vi m\u00f4<\/p>\n

Tr\u1ea1ng th\u00e1i ph\u00e2n t\u00e1n v\u00e0 s\u1ef1 bong tr\u00f3c c\u1ee7a b\u1ed9t talc trong m\u1eb7t c\u1eaft ngang c\u1ee7a m\u00e0ng s\u01a1n \u0111\u01b0\u1ee3c quan s\u00e1t b\u1eb1ng k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed qu\u00e9t (SEM).<\/p>\n

3. \u0110\u00e1nh gi\u00e1 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh<\/p>\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh khi b\u1ea3o qu\u1ea3n: Sau th\u1eddi gian d\u00e0i \u0111\u1ec3 y\u00ean, hi\u1ec7n t\u01b0\u1ee3ng l\u1eafng \u0111\u1ecdng, ph\u00e2n l\u1edbp v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n l\u1ea1i \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/p>\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh khi b\u1ea3o qu\u1ea3n nhi\u1ec7t: \u0110\u1ea9y nhanh qu\u00e1 tr\u00ecnh ki\u1ec3m tra kh\u1ea3 n\u0103ng ch\u1ed1ng k\u1ebft t\u1ee5 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

4. Ki\u1ec3m tra hi\u1ec7u su\u1ea5t m\u00e0ng s\u01a1n<\/p>\n

Cu\u1ed1i c\u00f9ng, t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ef1 ph\u00e2n t\u00e1n \u0111\u1ebfn vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng, kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a m\u00e0ng s\u01a1n \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng.<\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m s\u01a1n ph\u1ee7 cao c\u1ea5p, n\u00ean s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p “b\u1ed9t talc bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t + ch\u1ea5t ph\u00e2n t\u00e1n copolymer kh\u1ed1i polymer + quy tr\u00ecnh nghi\u1ec1n c\u00e1t” \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 v\u00e0 tri\u1ec7t \u0111\u1ec3 m\u1ee9c \u0111\u1ed9 ph\u00e2n t\u00e1n c\u1ee7a b\u1ed9t talc, lo\u1ea1i b\u1ecf c\u00e1c h\u1ea1t l\u1edbn c\u00f3 h\u1ea1i, t\u1eeb \u0111\u00f3 ph\u00e1t huy t\u1ed1i \u0111a vai tr\u00f2 t\u00edch c\u1ef1c c\u1ee7a n\u00f3 trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng, gi\u1ea3m chi ph\u00ed v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e0ng s\u01a1n ph\u1ee7.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ec7c ph\u1ee7 c\u00e1c ch\u1ea5t li\u00ean k\u1ebft silan, ch\u1ea5t li\u00ean k\u1ebft titanat ho\u1eb7c axit stearic c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u00e1i l\u1ef1c c\u1ee7a n\u00f3 v\u1edbi c\u00e1c ch\u1ea5t n\u1ec1n polyme, v\u1ec1 c\u01a1 b\u1ea3n l\u00e0m gi\u1ea3m xu h\u01b0\u1edbng v\u00f3n c\u1ee5c.<\/p>\n","protected":false},"author":7,"featured_media":136888,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-136913","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\/136913","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=136913"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136913\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/136888"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=136913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=136913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=136913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}