{"id":116763,"date":"2022-06-02T10:53:42","date_gmt":"2022-06-02T02:53:42","guid":{"rendered":"https:\/\/www.alpapowder.com\/116763\/"},"modified":"2022-05-27T13:59:11","modified_gmt":"2022-05-27T05:59:11","slug":"tai-sao-phai-sua-doi-silica-co-nhung-phuong-phap-nao","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/116763\/","title":{"rendered":"T\u1ea1i sao ph\u1ea3i s\u1eeda \u0111\u1ed5i silica? C\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0o?"},"content":{"rendered":"

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L\u1edbp b\u1ec1 m\u1eb7t c\u1ee7a silica c\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c nh\u00f3m hydroxyl, ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t chung c\u1ee7a v\u1eadt li\u1ec7u. V\u00ed d\u1ee5, silica<\/a> k\u1ebft t\u1ee5 do t\u00ednh ch\u1ea5t \u01b0a n\u01b0\u1edbc c\u1ee7a c\u00e1c nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t. Do hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, khi v\u1eadt li\u1ec7u composite cao su ch\u1ecbu m\u1ed9t t\u1ea3i tr\u1ecdng n\u00e0o \u0111\u00f3, l\u1ef1c ma s\u00e1t t\u01b0\u01a1ng \u0111\u1ed1i b\u00ean trong v\u1eadt li\u1ec7u s\u1ebd t\u0103ng l\u00ean, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01a1 t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u composite.<\/p>\n

B\u1edfi v\u00ec m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c nh\u00f3m hydroxyl c\u00f3 t\u00ednh ki\u1ec1m, silica<\/a> c\u0169ng s\u1ebd c\u00f3 t\u00ednh ki\u1ec1m y\u1ebfu. Khi g\u1eb7p m\u1ed9t s\u1ed1 ch\u1ea5t x\u00fac ti\u1ebfn c\u00f3 t\u00ednh ki\u1ec1m, n\u00f3 s\u1ebd ph\u1ea3n \u1ee9ng v\u1edbi ch\u00fang, \u0111i\u1ec1u n\u00e0y s\u1ebd g\u00e2y ra m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh l\u01b0u h\u00f3a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p cao su. \u1ea2nh h\u01b0\u1edfng, s\u1ebd d\u1eabn \u0111\u1ebfn th\u1eddi gian l\u01b0u h\u00f3a cao su l\u00e2u h\u01a1n, \u0111i\u1ec1u n\u00e0y s\u1ebd t\u1ea1o ra m\u1ed9t lo\u1ea1t c\u00e1c ph\u1ea3n \u1ee9ng d\u00e2y chuy\u1ec1n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u0103ng ma s\u00e1t b\u00ean trong, gi\u1ea3m m\u1eadt \u0111\u1ed9 li\u00ean k\u1ebft ch\u00e9o, v.v.<\/p>\n

Trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p truy\u1ec1n th\u1ed1ng, n\u00f3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i theo t\u00ednh ch\u1ea5t c\u1ee7a ch\u1ea5t bi\u1ebfn t\u00ednh, \u0111\u00f3 l\u00e0 ch\u1ea5t bi\u1ebfn t\u00ednh h\u1eefu c\u01a1 v\u00e0 ch\u1ea5t bi\u1ebfn t\u00ednh v\u00f4 c\u01a1. Trong s\u1ed1 \u0111\u00f3, ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh ch\u1ea5t h\u1eefu c\u01a1 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i, c\u00f3 th\u1ec3 chia th\u00e0nh ba lo\u1ea1i theo ph\u01b0\u01a1ng ph\u00e1p qu\u00e1 tr\u00ecnh, ph\u01b0\u01a1ng ph\u00e1p kh\u00f4, ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbt v\u00e0 ph\u01b0\u01a1ng ph\u00e1p h\u1ea5p ti\u1ec7t tr\u00f9ng.<\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c s\u1eeda \u0111\u1ed5i \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c hi\u1ec7u \u1ee9ng s\u1eeda \u0111\u1ed5i kh\u00e1c nhau. C\u00f3 nhi\u1ec1u k\u1ef9 thu\u1eadt s\u1eeda \u0111\u1ed5i, m\u1ed7i k\u1ef9 thu\u1eadt c\u00f3 nh\u1eefng \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang.<\/p>\n

M\u1ed9t l\u00e0 gh\u00e9p b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t silica<\/a> v\u1edbi polyme c\u00f3 t\u00ednh ch\u1ea5t t\u01b0\u01a1ng t\u1ef1, m\u00e0 ng\u01b0\u1eddi ta th\u01b0\u1eddng g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p b\u1ec1 m\u1eb7t bi\u1ebfn t\u00ednh, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u00edch h\u1ee3p \u0111\u1ec3 gh\u00e9p c\u00e1c polyme c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed nh\u1ecf h\u01a1n, nh\u01b0ng \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 gh\u00e9p c\u0169ng r\u1ea5t kh\u1eaft khe;<\/p>\n

Th\u1ee9 hai l\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh c\u1ee7a t\u00e1c nh\u00e2n n\u1ed1i silan. Trong qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb, nh\u00f3m ch\u1ee9c tr\u00ean ch\u1ea5t k\u1ebft h\u1ee3p ph\u1ea3n \u1ee9ng v\u1edbi nh\u00f3m \u01b0a n\u01b0\u1edbc c\u1ee7a h\u1ea1t, v\u00e0 tr\u00ean c\u01a1 s\u1edf n\u00e0y, v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i;<\/p>\n

Th\u1ee9 ba l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf ch\u1ea5t l\u1ecfng b\u1eb1ng ion. Silica<\/a> \u0111\u01b0\u1ee3c \u0111\u1eb7t trong ch\u1ea5t l\u1ecfng h\u1ea1t \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi n\u00f3 nh\u1eb1m c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n c\u1ee7a silica. M\u1eb7c d\u00f9 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 \u0111\u1ed9 \u00f4 nhi\u1ec5m th\u1ea5p v\u00e0 d\u1ec5 v\u1eadn h\u00e0nh, nh\u01b0ng hi\u1ec7u qu\u1ea3 \u0111i\u1ec1u ch\u1ec9nh k\u00e9m;<\/p>\n

Th\u1ee9 t\u01b0 l\u00e0 s\u1eeda \u0111\u1ed5i giao di\u1ec7n \u0111\u1ea1i ph\u00e2n t\u1eed. Ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 k\u00e9m khi s\u1eed d\u1ee5ng m\u1ed9t m\u00ecnh, nh\u01b0ng c\u00f3 th\u1ec3 h\u1ee3p t\u00e1c v\u1edbi t\u00e1c nh\u00e2n gh\u00e9p n\u1ed1i trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3;<\/p>\n

Th\u1ee9 n\u0103m l\u00e0 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i k\u1ebft h\u1ee3p, t\u1ee9c l\u00e0 k\u1ebft h\u1ee3p nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i, t\u1eadn d\u1ee5ng \u0111i\u1ec3m m\u1ea1nh v\u00e0 tr\u00e1nh \u0111i\u1ec3m y\u1ebfu c\u1ee7a ch\u00fang, \u0111\u1ed3ng th\u1eddi t\u00edch h\u1ee3p nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a ch\u00fang \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a vi\u1ec7c s\u1eeda \u0111\u1ed5i. V\u00ed d\u1ee5, ph\u01b0\u01a1ng ph\u00e1p s\u1eeda \u0111\u1ed5i t\u1ea1i ch\u1ed7 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Michelin, th\u1ef1c hi\u1ec7n \u0111\u1ea1i kh\u00e1i qu\u00e1 tr\u00ecnh th\u00eam ch\u1ea5t k\u1ebft n\u1ed1i silan v\u00e0 silica<\/a> v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c v\u00e0o cao su trong qu\u00e1 tr\u00ecnh tr\u1ed9n, v\u00e0 c\u1ea3 hai ph\u1ea3n \u1ee9ng trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n h\u1ec7 th\u1ed1ng nh\u1ea5t \u0111\u1ecbnh. C\u00f3 m\u1ed9t s\u1ed1 l\u1ef1c gi\u1eefa ch\u1ea5t k\u1ebft n\u1ed1i v\u00e0 h\u1ed7n h\u1ee3p cao su, l\u1ef1c n\u00e0y kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y c\u00e1c t\u1eadp h\u1ee3p silica<\/a>, m\u00e0 c\u00f2n l\u00e0m thay \u0111\u1ed5i silica m\u1ed9t c\u00e1ch k\u1ef5 n\u01b0\u1edbc. Tuy nhi\u00ean, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00f2i h\u1ecfi nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng v\u00e0 kh\u00f3 ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3, v\u00ec v\u1eady c\u1ea7n c\u00f3 nh\u1eefng c\u1ea3i ti\u1ebfn th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh nh\u1eefng khuy\u1ebft t\u1eadt n\u00e0y. Ngo\u00e0i ra, ch\u1ea5t k\u1ebft n\u1ed1i c\u00f2n l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng v\u1eabn c\u00f2n trong \u0111\u00f3, \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u composite.<\/p>\n

Ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t c\u00f4ng ngh\u1ec7 s\u1eeda \u0111\u1ed5i kh\u00f4 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 s\u1eeda \u0111\u1ed5i t\u1ea1i ch\u1ed7. M\u1ee5c \u0111\u00edch l\u00e0 \u0111\u1ec3 thu \u0111\u01b0\u1ee3c silica<\/a> c\u00f3 t\u00ednh k\u1ef5 n\u01b0\u1edbc cao th\u00f4ng qua ph\u1ea3n \u1ee9ng c\u1ee7a ch\u1ea5t n\u1ed1i silan v\u00e0 silica trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao. Tuy nhi\u00ean, trong qu\u00e1 tr\u00ecnh n\u00e0y, c\u0169ng ti\u00eau t\u1ed1n r\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

Hi\u1ec7n t\u1ea1i, c\u00f4ng ngh\u1ec7 bi\u1ebfn t\u00ednh \u01b0\u1edbt \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn, c\u00f4ng ngh\u1ec7 n\u00e0y y\u00eau c\u1ea7u ch\u1ea5t k\u1ebft h\u1ee3p silan ph\u1ea3n \u1ee9ng v\u1edbi silica<\/a> trong dung d\u1ecbch. C\u00f4ng ngh\u1ec7 n\u00e0y kh\u00f4ng nh\u1eefng kh\u00f4ng c\u1ea7n ti\u00eau t\u1ed1n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng m\u00e0 c\u00f2n c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i.<\/p>\n

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V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7, bi\u1ebfn t\u00ednh polyme \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n m\u1edbi. V\u00ec v\u1eadt li\u1ec7u composite m\u1edbi n\u00e0y k\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a hai ho\u1eb7c nhi\u1ec1u v\u1eadt li\u1ec7u, c\u00f3 t\u00ednh ch\u1ea5t li\u00ean k\u1ebft r\u1ea5t \u01b0u vi\u1ec7t, gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a hai v\u1eadt li\u1ec7u th\u00ed nghi\u1ec7m d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p su\u1ea5t cao, n\u00ean n\u00f3 l\u00e0 v\u1eadt li\u1ec7u composite cao su. Nghi\u00ean c\u1ee9u v\u1ec1 h\u00e0nh vi c\u01a1 h\u1ecdc \u0111\u00e3 t\u1ea1o ra m\u1ed9t n\u1ec1n t\u1ea3ng t\u1ed1t. Li\u00ean quan \u0111\u1ebfn cao su silicone, vi\u1ec7c s\u1eed d\u1ee5ng silica<\/a> bi\u1ebfn t\u00ednh canxi cacbonat nano l\u00e0m ch\u1ea5t gia c\u01b0\u1eddng kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 gia c\u1ed1 m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh l\u01b0u bi\u1ebfn c\u1ee7a cao su silicone, do \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 c\u1ea3i thi\u1ec7n qu\u00e1 tr\u00ecnh x\u1eed l\u00fd khu\u00f4n M\u1ef9 ph\u1ea9m.<\/p>\n","protected":false},"excerpt":{"rendered":"

L\u1edbp b\u1ec1 m\u1eb7t c\u1ee7a silica c\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c nh\u00f3m hydroxyl, ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t chung c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n","protected":false},"author":7,"featured_media":116736,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[],"class_list":["post-116763","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\/116763","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=116763"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/116763\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/116736"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=116763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=116763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=116763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}