{"id":125911,"date":"2023-02-24T15:29:25","date_gmt":"2023-02-24T07:29:25","guid":{"rendered":"https:\/\/www.alpapowder.com\/125911\/"},"modified":"2023-02-24T15:29:26","modified_gmt":"2023-02-24T07:29:26","slug":"tai-sao-phai-bien-tinh-be-mat-bot-talc","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/125911\/","title":{"rendered":"T\u1ea1i sao ph\u1ea3i bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t b\u1ed9t talc?"},"content":{"rendered":"

\"\"<\/p>\n

Talc l\u00e0 m\u1ed9t kho\u00e1ng ch\u1ea5t magie silicat ng\u1eadm n\u01b0\u1edbc c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n t\u1ed1t, ch\u1ecbu nhi\u1ec7t, \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc, b\u00f4i tr\u01a1n, h\u1ea5p th\u1ee5 d\u1ea7u, \u1ea9n \u0111i\u1ec7n v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh gia c\u00f4ng c\u01a1 h\u1ecdc. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u1ef9 ph\u1ea9m, s\u01a1n, ch\u1ea5t ph\u1ee7, S\u1ea3n xu\u1ea5t gi\u1ea5y, nh\u1ef1a, d\u00e2y c\u00e1p, g\u1ed1m s\u1ee9, v\u1eadt li\u1ec7u ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n

1. T\u1ea1i sao ph\u1ea3i bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t b\u1ed9t talc?<\/p>\n

Gi\u1ed1ng nh\u01b0 c\u00e1c v\u1eadt li\u1ec7u b\u1ed9t kho\u00e1ng phi kim lo\u1ea1i kh\u00e1c, vi\u1ec7c x\u1eed l\u00fd h\u1eefu c\u01a1 b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t talc l\u00e0 c\u1ea7n thi\u1ebft. \u0110i\u1ec1u n\u00e0y l\u00e0 do b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t talc ch\u1ee9a c\u00e1c nh\u00f3m \u01b0a n\u01b0\u1edbc v\u00e0 c\u00f3 n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t cao. L\u00e0 ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 v\u00e0 v\u1eadt li\u1ec7u ph\u00e2n t\u1eed polymer cao h\u1eefu c\u01a1, c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc v\u00e0 d\u1ea1ng v\u1eadt l\u00fd. N\u00f3 thi\u1ebfu \u00e1i l\u1ef1c v\u00e0 y\u00eau c\u1ea7u C\u00e1c h\u1ea1t b\u1ed9t talc \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 c\u1ea3i thi\u1ec7n l\u1ef1c li\u00ean k\u1ebft b\u1ec1 m\u1eb7t gi\u1eefa b\u1ed9t talc v\u00e0 polyme, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n v\u00e0 t\u01b0\u01a1ng th\u00edch \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u00e1c h\u1ea1t b\u1ed9t talc v\u00e0 polyme.<\/p>\n

2. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t talc l\u00e0 g\u00ec?<\/p>\n

(1) Ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i \u0111\u1ed9 che ph\u1ee7 b\u1ec1 m\u1eb7t
\nPh\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t l\u00e0 ph\u1ee7 ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t ho\u1eb7c ch\u1ea5t li\u00ean k\u1ebft l\u00ean b\u1ec1 m\u1eb7t c\u1ee7a h\u1ea1t, \u0111\u1ec3 ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t ho\u1eb7c ch\u1ea5t li\u00ean k\u1ebft \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi b\u1ec1 m\u1eb7t c\u1ee7a h\u1ea1t b\u1eb1ng c\u00e1ch h\u1ea5p ph\u1ee5 ho\u1eb7c li\u00ean k\u1ebft h\u00f3a h\u1ecdc, \u0111\u1ec3 b\u1ec1 m\u1eb7t c\u1ee7a h\u1ea1t thay \u0111\u1ed5i t\u1eeb \u01b0a n\u01b0\u1edbc sang k\u1ef5 n\u01b0\u1edbc, t\u1ea1o cho h\u1ea1t c\u00e1c \u0111\u1eb7c t\u00ednh m\u1edbi gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c h\u1ea1t v\u1edbi polyme. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y hi\u1ec7n l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n

(2) Ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u00f3a
\nPh\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u00f3a l\u00e0 l\u00e0m cho c\u00e1c h\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn nh\u1ecf h\u01a1n b\u1eb1ng c\u00e1ch nghi\u1ec1n, ma s\u00e1t, v.v., \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t t\u0103ng l\u00ean, ngh\u0129a l\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 b\u1ec1 m\u1eb7t c\u1ee7a ch\u00fang, \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh, gi\u1ea3m chi ph\u00ed v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m. Nghi\u1ec1n si\u00eau m\u1ecbn l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p quan tr\u1ecdng \u0111\u1ec3 x\u1eed l\u00fd s\u00e2u v\u1eadt li\u1ec7u v\u00e0 m\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m b\u1ed9t hi\u1ec7u su\u1ea5t cao cho ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. Qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u01a1n gi\u1ea3n, n\u00f3 bao g\u1ed3m nhi\u1ec1u t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u b\u1ed9t ph\u1ee9c t\u1ea1p v\u00e0 thay \u0111\u1ed5i c\u1ea5u tr\u00fac, thay \u0111\u1ed5i c\u01a1 h\u00f3a.<\/p>\n

(3) Ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i l\u1edbp m\u00e0ng ngo\u00e0i
\nVi\u1ec7c s\u1eeda \u0111\u1ed5i l\u1edbp phim b\u00ean ngo\u00e0i l\u00e0 ph\u1ee7 m\u1ed9t l\u1edbp polymer \u0111\u1ed3ng nh\u1ea5t l\u00ean b\u1ec1 m\u1eb7t h\u1ea1t, do \u0111\u00f3 t\u1ea1o cho b\u1ec1 m\u1eb7t h\u1ea1t nh\u1eefng \u0111\u1eb7c t\u00ednh m\u1edbi.<\/p>\n

(4) S\u1eeda \u0111\u1ed5i t\u00edch c\u1ef1c m\u1ed9t ph\u1ea7n
\nS\u1eeda \u0111\u1ed5i t\u00edch c\u1ef1c m\u1ed9t ph\u1ea7n s\u1eed d\u1ee5ng c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc \u0111\u1ec3 gh\u00e9p m\u1ed9t s\u1ed1 nh\u00f3m ho\u1eb7c nh\u00f3m ch\u1ee9c n\u0103ng tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t t\u01b0\u01a1ng th\u00edch v\u1edbi polyme, \u0111\u1ec3 c\u00e1c h\u1ea1t v\u00f4 c\u01a1 v\u00e0 polyme c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t h\u01a1n, nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch k\u1ebft h\u1ee3p c\u00e1c h\u1ea1t v\u00f4 c\u01a1 v\u00e0 polyme.<\/p>\n

(5) S\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t n\u0103ng l\u01b0\u1ee3ng cao
\nBi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t n\u0103ng l\u01b0\u1ee3ng cao l\u00e0 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi s\u1ef1 ph\u00f3ng \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng cao, tia plasma, tia c\u1ef1c t\u00edm, v.v. \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t \u0111\u1ec3 l\u00e0m cho b\u1ec1 m\u1eb7t ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c h\u1ea1t v\u00e0 polyme.<\/p>\n

(6) \u0110i\u1ec1u ch\u1ec9nh ph\u1ea3n \u1ee9ng k\u1ebft t\u1ee7a
\nPh\u1ea3n \u1ee9ng k\u1ebft t\u1ee7a s\u1eeda \u0111\u1ed5i S\u1eed d\u1ee5ng ph\u1ea3n \u1ee9ng k\u1ebft t\u1ee7a \u0111\u1ec3 s\u1eeda \u0111\u1ed5i. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u \u1ee9ng k\u1ebft t\u1ee7a \u0111\u1ec3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 s\u1eeda \u0111\u1ed5i.<\/p>\n

3. Ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh b\u1ec1 m\u1eb7t n\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed9t talc?<\/p>\n

(1) Ch\u1ea5t k\u1ebft d\u00ednh titanate
\nPh\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i: Quy tr\u00ecnh kh\u00f4 l\u00e0 khu\u1ea5y v\u00e0 l\u00e0m kh\u00f4 b\u1ed9t talc trong m\u00e1y tr\u1ed9n t\u1ed1c \u0111\u1ed9 cao \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng tr\u01b0\u1edbc \u0111\u1ebfn 100\u00b0C-110\u00b0C, sau \u0111\u00f3 th\u00eam ch\u1ea5t li\u00ean k\u1ebft titanate \u0111\u01b0\u1ee3c \u0111o \u0111\u1ec1u (pha lo\u00e3ng v\u1edbi m\u1ed9t l\u01b0\u1ee3ng d\u1ea7u tr\u1eafng 15 # th\u00edch h\u1ee3p) , Khu\u1ea5y trong v\u00e0i ph\u00fat \u0111\u1ec3 thu \u0111\u01b0\u1ee3c b\u1ed9t talc bi\u1ebfn t\u00ednh; quy tr\u00ecnh \u01b0\u1edbt l\u00e0 pha lo\u00e3ng ch\u1ea5t li\u00ean k\u1ebft titanate v\u1edbi m\u1ed9t l\u01b0\u1ee3ng dung m\u00f4i nh\u1ea5t \u0111\u1ecbnh, th\u00eam m\u1ed9t l\u01b0\u1ee3ng b\u1ed9t talc nh\u1ea5t \u0111\u1ecbnh, khu\u1ea5y \u1edf 95\u00b0C trong 30 ph\u00fat, l\u1ecdc v\u00e0 s\u1ea5y kh\u00f4 \u0111\u1ec3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m b\u1ed9t talc bi\u1ebfn t\u00ednh.<\/p>\n

(2) Ch\u1ea5t k\u1ebft d\u00ednh aluminat
\nPh\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ec9nh: H\u00f2a tan m\u1ed9t l\u01b0\u1ee3ng aluminat th\u00edch h\u1ee3p (ch\u1eb3ng h\u1ea1n nh\u01b0 lo\u1ea1i L2) trong dung m\u00f4i (ch\u1eb3ng h\u1ea1n nh\u01b0 parafin l\u1ecfng), th\u00eam b\u1ed9t talc m\u1ecbn 1250 l\u01b0\u1edbi \u0111\u00e3 kh\u00f4 v\u00e0 nghi\u1ec1n trong 30 ph\u00fat \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 gi\u1eef nhi\u1ec7t \u0111\u1ed9 \u1edf 100\u00b0C cho m\u1ed9t th\u1eddi gian, \u0111\u1ec3 ngu\u1ed9i Sau \u0111\u00f3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m bi\u1ebfn t\u00ednh.<\/p>\n

(3) Ch\u1ea5t li\u00ean k\u1ebft silan
\nPh\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i: T\u1ea1o dung d\u1ecbch ch\u1ea5t li\u00ean k\u1ebft silane (ch\u1eb3ng h\u1ea1n nh\u01b0 KH-570) v\u00e0 khu\u1ea5y \u0111\u1ec1u. Nh\u1ecf dung d\u1ecbch v\u00e0o b\u1ed9t talc \u0111\u00e3 s\u1ea5y kh\u00f4, khu\u1ea5y trong 40-60 ph\u00fat \u0111\u1ec3 ch\u1ea5t x\u1eed l\u00fd bao ph\u1ee7 ho\u00e0n to\u00e0n ch\u1ea5t \u0111\u1ed9n, sau \u0111\u00f3 \u0111un n\u00f3ng v\u00e0 s\u1ea5y kh\u00f4 \u0111\u1ec3 thu \u0111\u01b0\u1ee3c b\u1ed9t talc bi\u1ebfn t\u00ednh.<\/p>\n

(4) Ph\u1ed1t ph\u00e1t
\nPh\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i: \u0111\u1ea7u ti\u00ean ph\u1ee7 tr\u01b0\u1edbc b\u1ed9t talc trong dung d\u1ecbch n\u01b0\u1edbc c\u1ee7a este axit photphoric \u1edf 80\u00b0C trong 1 gi\u1edd, sau \u0111\u00f3 s\u1ea5y kh\u00f4 \u1edf kho\u1ea3ng 95\u00b0C; cu\u1ed1i c\u00f9ng t\u0103ng nhi\u1ec7t \u0111\u1ed9 l\u00ean 125\u00b0C v\u00e0 x\u1eed l\u00fd nhi\u1ec7t trong 1 gi\u1edd. Li\u1ec1u l\u01b0\u1ee3ng ph\u1ed1t ph\u00e1t l\u00e0 0,5% -8% b\u1ed9t ho\u1ea1t th\u1ea1ch.<\/p>\n","protected":false},"excerpt":{"rendered":"

Talc l\u00e0 m\u1ed9t kho\u00e1ng ch\u1ea5t magie silicat ng\u1eadm n\u01b0\u1edbc c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n t\u1ed1t, ch\u1ecbu nhi\u1ec7t, \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc, b\u00f4i tr\u01a1n, h\u1ea5p th\u1ee5 d\u1ea7u, \u1ea9n \u0111i\u1ec7n v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh gia c\u00f4ng c\u01a1 h\u1ecdc.<\/p>\n","protected":false},"author":7,"featured_media":125870,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-125911","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\/125911","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=125911"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/125911\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/125870"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=125911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=125911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=125911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}