{"id":125852,"date":"2023-02-22T10:18:59","date_gmt":"2023-02-22T02:18:59","guid":{"rendered":"https:\/\/www.alpapowder.com\/125852\/"},"modified":"2023-02-22T10:19:00","modified_gmt":"2023-02-22T02:19:00","slug":"nam-cong-nghe-ung-dung-chinh-cua-micropowder-silicon-cho-cac-lop-phu-dong","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/125852\/","title":{"rendered":"N\u0103m c\u00f4ng ngh\u1ec7 \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a micropowder silicon cho c\u00e1c l\u1edbp ph\u1ee7 \u0111\u1ed3ng"},"content":{"rendered":"
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Hi\u1ec7n t\u1ea1i, c\u00e1c ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u1ea5m ph\u1ee7 \u0111\u1ed3ng (CCL) ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c lo\u1ea1i sau: ATH (nh\u00f4m hydroxit), b\u1ed9t talc, micropowder silicon, cao lanh, canxi cacbonat, titan dioxide, r\u00e2u c\u00e1ch \u0111i\u1ec7n, l\u1edbp ph\u1ee7 molybdate k\u1ebdm Ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1, ph\u00e2n l\u1edbp kho\u00e1ng s\u00e9t, v.v. Trong s\u1ed1 \u0111\u00f3, ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t l\u00e0 b\u1ed9t silic.<\/p>\n
B\u1ed9t silica<\/a>, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh CCL nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i: lo\u1ea1i n\u00f3ng ch\u1ea3y, lo\u1ea1i tinh th\u1ec3 v\u00e0 lo\u1ea1i h\u1ed7n h\u1ee3p t\u1eeb c\u1ea5u tr\u00fac ph\u00e2n t\u1eed; t\u1eeb h\u00ecnh th\u00e1i h\u1ea1t b\u1ed9t, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i: h\u00ecnh d\u1ea1ng g\u00f3c c\u1ea1nh v\u00e0 h\u00ecnh c\u1ea7u. So v\u1edbi b\u1ed9t silica<\/a> g\u00f3c, b\u1ed9t silica h\u00ecnh c\u1ea7u c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m h\u01a1n v\u1ec1 kh\u1ea3 n\u0103ng l\u00e0m \u0111\u1ea7y, gi\u00e3n n\u1edf nhi\u1ec7t v\u00e0 \u0111\u1ed9 m\u00e0i m\u00f2n.<\/p>\n Nh\u00ecn chung, c\u00f4ng ngh\u1ec7 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u1ea5t \u0111\u1ed9n b\u1ed9t silica<\/a> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft th\u00e0nh n\u0103m kh\u00eda c\u1ea1nh sau:<\/p>\n 1. \u0110\u1ecbnh h\u01b0\u1edbng n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a t\u1ea5m<\/p>\n S\u1ef1 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i nhanh ch\u00f3ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed \u0111\u00e3 \u0111\u01b0a ra c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t cao h\u01a1n \u0111\u1ed1i v\u1edbi b\u1ea3ng m\u1ea1ch PCB. L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n ch\u1ee9c n\u0103ng, ch\u1ea5t \u0111\u1ed9n micropowder silicon<\/a> c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n nhi\u1ec1u hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 \u0111\u1ed3ng v\u00e0 c\u0169ng c\u00f3 th\u1ec3 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t. N\u00f3 \u0111\u00e3 thu h\u00fat ng\u00e0y c\u00e0ng nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n 2. T\u1ed1i \u01b0u h\u00f3a k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a b\u1ed9t silica<\/a><\/p>\n K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a ch\u1ea5t \u0111\u1ed9n thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh \u1ee9ng d\u1ee5ng. C\u00f3 hai ch\u1ec9 s\u1ed1 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ea1t ch\u1ea5t \u0111\u1ed9n, m\u1ed9t l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh v\u00e0 hai l\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t. C\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh v\u00e0 ph\u1ea1m vi ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a ch\u1ea5t \u0111\u1ed9n c\u00f3 t\u00e1c \u0111\u1ed9ng r\u1ea5t quan tr\u1ecdng \u0111\u1ebfn hi\u1ec7u \u1ee9ng l\u1ea5p \u0111\u1ea7y v\u00e0 hi\u1ec7u su\u1ea5t to\u00e0n di\u1ec7n c\u1ee7a b\u1ea3ng.<\/p>\n 3. \u0110i\u1ec1u ch\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng nh\u00e2n c\u1ea7u h\u00f3a<\/p>\n C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf micropowder silicon<\/a> h\u00ecnh c\u1ea7u bao g\u1ed3m: ph\u01b0\u01a1ng ph\u00e1p plasma cao t\u1ea7n, ph\u01b0\u01a1ng ph\u00e1p plasma d\u00f2ng \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp, ph\u01b0\u01a1ng ph\u00e1p h\u1ed3 quang \u0111i\u1ec7n c\u1ef1c carbon, ph\u01b0\u01a1ng ph\u00e1p ng\u1ecdn l\u1eeda \u0111\u1ed1t kh\u00ed, ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u1ea1t phun n\u00f3ng ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc, trong \u0111\u00f3 ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t. tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p L\u00e0 ph\u01b0\u01a1ng ph\u00e1p ng\u1ecdn l\u1eeda \u0111\u1ed1t kh\u00ed.<\/p>\n H\u00ecnh d\u1ea1ng c\u1ee7a b\u1ed9t microsilica \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn l\u01b0\u1ee3ng l\u00e0m \u0111\u1ea7y c\u1ee7a n\u00f3. So v\u1edbi b\u1ed9t silica<\/a> g\u00f3c, b\u1ed9t silica h\u00ecnh c\u1ea7u c\u00f3 m\u1eadt \u0111\u1ed9 kh\u1ed1i cao h\u01a1n v\u00e0 ph\u00e2n b\u1ed1 \u1ee9ng su\u1ea5t \u0111\u1ed3ng \u0111\u1ec1u, do \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng, gi\u1ea3m \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 c\u0169ng c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn h\u01a1n.<\/p>\n 4. C\u00f4ng ngh\u1ec7 chi\u1ebft r\u00f3t cao<\/p>\n N\u1ebfu l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n qu\u00e1 th\u1ea5p, hi\u1ec7u su\u1ea5t kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u, nh\u01b0ng khi l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n t\u0103ng l\u00ean, \u0111\u1ed9 nh\u1edbt c\u1ee7a h\u1ec7 th\u1ed1ng s\u1ebd t\u0103ng m\u1ea1nh, t\u00ednh l\u01b0u \u0111\u1ed9ng v\u00e0 t\u00ednh th\u1ea5m c\u1ee7a v\u1eadt li\u1ec7u s\u1ebd k\u00e9m v\u00e0 s\u1ef1 ph\u00e2n t\u00e1n c\u1ee7a b\u1ed9t silica<\/a> h\u00ecnh c\u1ea7u trong nh\u1ef1a s\u1ebd kh\u00f3 kh\u0103n v\u00e0 d\u1ec5 d\u00e0ng x\u1ea3y ra s\u1ef1 k\u1ebft t\u1ee5.<\/p>\n 5. C\u00f4ng ngh\u1ec7 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t<\/p>\n S\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa b\u1ed9t silica<\/a> h\u00ecnh c\u1ea7u, ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 s\u1ef1 k\u1ebft t\u1ee5, gi\u1ea3m \u0111\u1ed9 nh\u1edbt c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ed9t silica h\u00ecnh c\u1ea7u v\u00e0 ma tr\u1eadn nh\u1ef1a PTFE (polytetrafluoroetylen). Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch tuy\u1ec7t v\u1eddi, \u0111\u1ec3 c\u00e1c h\u1ea1t \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n \u0111\u1ec1u trong keo.<\/p>\n