{"id":119244,"date":"2022-10-10T13:50:20","date_gmt":"2022-10-10T05:50:20","guid":{"rendered":"https:\/\/www.alpapowder.com\/119244\/"},"modified":"2022-10-10T13:50:20","modified_gmt":"2022-10-10T05:50:20","slug":"anh-huong-cua-ham-luong-vi-hat-silic-den-tinh-chat-cua-gang-duc-epoxy-de-cach-dien","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/119244\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a h\u00e0m l\u01b0\u1ee3ng vi h\u1ea1t silic \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u1ee7a gang \u0111\u00fac Epoxy \u0111\u1ec3 c\u00e1ch \u0111i\u1ec7n"},"content":{"rendered":"

\"\"<\/p>\n

V\u1eadt li\u1ec7u \u0111\u00fac c\u00e1ch nhi\u1ec7t Epoxy l\u00e0 h\u1ed7n h\u1ee3p nh\u1ef1a polyme l\u1ecfng ho\u1eb7c nh\u1edbt \u0111\u01b0\u1ee3c tr\u1ed9n v\u1edbi nh\u1ef1a th\u00f4ng, ch\u1ea5t \u0111\u00f3ng r\u1eafn, ch\u1ea5t \u0111\u1ed9n, … \u1ede nhi\u1ec7t \u0111\u1ed9 r\u00f3t, v\u1eadt \u0111\u00fac c\u00f3 \u0111\u1eb7c t\u00ednh l\u01b0u \u0111\u1ed9ng t\u1ed1t, \u00edt ch\u1ea5t bay h\u01a1i, \u0111\u00f3ng r\u1eafn nhanh v\u00e0 \u0111\u1ed9 co ng\u00f3t nh\u1ecf sau khi \u0111\u00f3ng r\u1eafn, c\u1ed1 \u0111\u1ecbnh. v\u00e0 c\u00e1ch ly v\u00e0 c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c trong m\u1ed9t s\u1ea3n ph\u1ea9m c\u00e1ch nhi\u1ec7t.<\/p>\n

B\u1ed9t vi kim lo\u1ea1i silicon<\/a> l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a v\u1eadt \u0111\u00fac c\u00e1ch \u0111i\u1ec7n, v\u00e0 c\u00f3 vai tr\u00f2 kh\u00f4ng th\u1ec3 thay th\u1ebf trong vi\u1ec7c gi\u1ea3m co ng\u00f3t, gi\u1ea3m chi ph\u00ed v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t.<\/p>\n

Hi\u1ec7n nay, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ea5t c\u00e1ch \u0111i\u1ec7n c\u1ed1 g\u1eafng t\u0103ng t\u1ef7 l\u1ec7 ch\u1ea5t \u0111\u1ed9n c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t \u0111\u1ec3 gi\u1ea3m gi\u00e1 th\u00e0nh. Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n qu\u00e1 cao s\u1ebd l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n, c\u01a1 t\u00ednh v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a ch\u00fang, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn s\u1ef1 v\u1eadn h\u00e0nh an to\u00e0n v\u00e0 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n; C\u00e1c b\u1ed9 ph\u1eadn c\u00e1ch \u0111i\u1ec7n c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n qu\u00e1 th\u1ea5p c\u0169ng s\u1ebd l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a ch\u00fang. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nh\u1ef1a epoxy \u0111\u00e3 kh\u00f4ng \u0111\u01b0a ra c\u00e1c quy \u0111\u1ecbnh h\u1ee3p l\u00fd v\u1ec1 t\u1ef7 l\u1ec7 b\u1ed5 sung ch\u1ea5t \u0111\u1ed9n, \u0111i\u1ec1u n\u00e0y \u0111\u00e3 g\u00e2y ra s\u1ef1 b\u1ed1i r\u1ed1i l\u1edbn cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t epoxy.<\/p>\n

S\u1eed d\u1ee5ng nh\u1ef1a epoxy bisphenol A l\u1ecfng l\u00e0m v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n, anhydrit metyltetrahydrophthalic l\u00e0m ch\u1ea5t \u0111\u00f3ng r\u1eafn, BDMA l\u00e0m ch\u1ea5t gia t\u1ed1c, b\u1ed9t silicon<\/a> ho\u1ea1t t\u00ednh 400 mesh l\u00e0m ch\u1ea5t \u0111\u1ed9n, theo c\u00e1c t\u1ef7 l\u1ec7 ch\u1ea5t \u0111\u1ed9n kh\u00e1c nhau, quy tr\u00ecnh APG \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chu\u1ea9n b\u1ecb c\u00e1c d\u1ea3i th\u1eed nghi\u1ec7m. \u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00e1c l\u01b0\u1ee3ng kh\u00e1c nhau c\u1ee7a vi nguy\u00ean li\u1ec7u silicon<\/a> l\u00ean \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, t\u00ednh ch\u1ea5t \u0111i\u1ec7n m\u00f4i, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a dung d\u1ecbch v\u00e0 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc c\u1ee7a \u0111\u00fac epoxy \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u. K\u1ebft qu\u1ea3 cho th\u1ea5y:<\/p>\n

(1) V\u1edbi s\u1ef1 gia t\u0103ng c\u1ee7a h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n trong h\u1ec7 th\u1ed1ng nh\u1ef1a epoxy, h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i v\u00e0 t\u1ed5n th\u1ea5t \u0111i\u1ec7n m\u00f4i c\u1ee7a kh\u1ed1i m\u1eabu th\u01b0\u1eddng c\u00f3 xu h\u01b0\u1edbng t\u0103ng l\u00ean.<\/p>\n

(2) Khi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n th\u1ea5p, v\u1edbi vi\u1ec7c t\u0103ng t\u1ef7 tr\u1ecdng, kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00f2 r\u1ec9 t\u0103ng l\u00ean. Khi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n \u0111\u1ea1t 69,42%, kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00f2 r\u1ec9 \u0111\u1ea1t m\u1ee9c t\u1ed1i \u0111a; sau \u0111\u00f3, v\u1edbi s\u1ef1 gia t\u0103ng h\u01a1n n\u1eefa c\u1ee7a ch\u1ea5t \u0111\u1ed9n, kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c v\u1ebft r\u00f2 r\u1ec9 t\u0103ng l\u00ean. N\u00f3 l\u1ea1i b\u1eaft \u0111\u1ea7u tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n.<\/p>\n

(3) Khi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n t\u0103ng l\u00ean 67,26%, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a dung d\u1ecbch ki\u1ec1m b\u1eaft \u0111\u1ea7u gi\u1ea3m \u0111\u00e1ng k\u1ec3.<\/p>\n

(4) C\u01a1 t\u00ednh c\u1ee7a m\u1eabu ban \u0111\u1ea7u t\u0103ng khi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n t\u0103ng l\u00ean, v\u00e0 khi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n t\u0103ng l\u00ean 69,42% th\u00ec c\u01a1 t\u00ednh b\u1eaft \u0111\u1ea7u dao \u0111\u1ed9ng.<\/p>\n

(5) M\u1eb7c d\u00f9 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n t\u0103ng l\u00ean, n\u00f3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 co ng\u00f3t c\u1ee7a v\u1eadt \u0111\u00fac, c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u00f3, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t, nh\u01b0ng h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n qu\u00e1 cao s\u1ebd kh\u00f4ng ch\u1ec9 l\u00e0m cho qu\u00e1 tr\u00ecnh tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n m\u00e0 Ngo\u00e0i ra, n\u00f3 s\u1ebd l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a s\u1ea3n ph\u1ea9m. Do \u0111\u00f3, xem x\u00e9t hi\u1ec7u su\u1ea5t to\u00e0n di\u1ec7n, ph\u1ea1m vi h\u00e0m l\u01b0\u1ee3ng t\u1ed1i \u01b0u c\u1ee7a vi h\u1ea1t silicon<\/a> l\u00e0 63% \u0111\u1ebfn 67%.<\/p>\n","protected":false},"excerpt":{"rendered":"

Epoxy c\u00e1ch \u0111i\u1ec7n \u0111\u00fac l\u00e0 m\u1ed9t h\u1ed7n h\u1ee3p nh\u1ef1a polyme h\u00f3a l\u1ecfng ho\u1eb7c nh\u1edbt \u0111\u01b0\u1ee3c tr\u1ed9n v\u1edbi nh\u1ef1a, ch\u1ea5t \u0111\u00f3ng r\u1eafn, ch\u1ea5t \u0111\u1ed9n, v.v.<\/p>\n","protected":false},"author":7,"featured_media":119220,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[],"class_list":["post-119244","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\/119244","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=119244"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/119244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/119220"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=119244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=119244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=119244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}