{"id":114179,"date":"2021-11-19T15:04:31","date_gmt":"2021-11-19T07:04:31","guid":{"rendered":"https:\/\/www.alpapowder.com\/114179\/"},"modified":"2021-11-19T15:04:31","modified_gmt":"2021-11-19T07:04:31","slug":"ung-dung-cong-nghe-che-bien-va-phat-trien-bot-silic","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/114179\/","title":{"rendered":"\u1ee8ng d\u1ee5ng, c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn v\u00e0 ph\u00e1t tri\u1ec3n b\u1ed9t silic"},"content":{"rendered":"

B\u1ed9t silica \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u1ea1ch anh t\u1ef1 nhi\u00ean (SiO2<\/sub>) ho\u1eb7c th\u1ea1ch anh nung ch\u1ea3y (SiO2 <\/sub>v\u00f4 \u0111\u1ecbnh h\u00ecnh sau khi nung ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 l\u00e0m ngu\u1ed9i th\u1ea1ch anh t\u1ef1 nhi\u00ean), \u0111\u01b0\u1ee3c nghi\u1ec1n, nghi\u1ec1n bi (ho\u1eb7c rung, m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c), tuy\u1ec3n n\u1ed5i, t\u1ea9y r\u1eeda, n\u01b0\u1edbc tinh khi\u1ebft cao x\u1eed l\u00fd, vv. Ch\u1ebf bi\u1ebfn th\u00e0nh b\u1ed9t vi m\u00f4.<\/p>\n

Silicon<\/a> micropowder l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u phi kim lo\u1ea1i, kh\u00f4ng m\u00f9i, kh\u00f4ng \u0111\u1ed9c h\u1ea1i v\u00e0 kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m. N\u00f3 c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 \u0111\u1ed9 c\u1ee9ng cao, \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p, ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao, c\u00e1ch nhi\u1ec7t v\u00e0 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc \u1ed5n \u0111\u1ecbnh.<\/p>\n

Theo m\u1ee9c \u0111\u1ed9 c\u1ee7a b\u1ed9t silicon<\/a>, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh: b\u1ed9t silicon th\u00f4ng th\u01b0\u1eddng, b\u1ed9t silicon c\u1ea5p \u0111i\u1ec7n, b\u1ed9t silicon nung ch\u1ea3y, b\u1ed9t silicon si\u00eau m\u1ecbn, b\u1ed9t silicon h\u00ecnh c\u1ea7u. Theo m\u1ee5c \u0111\u00edch, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh: b\u1ed9t silicon<\/a> m\u1ecbn cho s\u01a1n v\u00e0 ch\u1ea5t ph\u1ee7, b\u1ed9t silicon m\u1ecbn cho s\u00e0n epoxy, b\u1ed9t silicon m\u1ecbn cho cao su, b\u1ed9t silicon m\u1ecbn cho ch\u1ea5t b\u1ecbt k\u00edn, b\u1ed9t silicon m\u1ecbn cho nh\u1ef1a \u0111i\u1ec7n t\u1eed v\u00e0 \u0111i\u1ec7n, v\u00e0 b\u1ed9t m\u1ecbn b\u1ed9t silicon d\u00f9ng cho g\u1ed1m s\u1ee9 ch\u00ednh x\u00e1c. Theo quy tr\u00ecnh s\u1ea3n xu\u1ea5t, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh: b\u1ed9t k\u1ebft tinh, b\u1ed9t cristobalit, b\u1ed9t nung ch\u1ea3y v\u00e0 c\u00e1c lo\u1ea1i b\u1ed9t ho\u1ea1t t\u00ednh kh\u00e1c nhau.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a b\u1ed9t silicon<\/h4>\n

Theo c\u00e1c c\u1ea5p ch\u1ea5t l\u01b0\u1ee3ng kh\u00e1c nhau, b\u1ed9t microsilica c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t cao su, nh\u1ef1a, s\u01a1n cao c\u1ea5p, ch\u1ea5t ph\u1ee7, v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda, c\u00e1ch \u0111i\u1ec7n, bao b\u00ec \u0111i\u1ec7n t\u1eed, g\u1ed1m s\u1ee9 cao c\u1ea5p, \u0111\u00fac ch\u00ednh x\u00e1c, v.v.<\/p>\n

B\u1ed9t silicon<\/a> th\u00f4ng th\u01b0\u1eddng ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho s\u01a1n \u0111\u00fac nh\u1ef1a epoxy, v\u1eadt li\u1ec7u l\u00e0m b\u1ea7u, l\u1edbp b\u1ea3o v\u1ec7 que h\u00e0n, \u0111\u00fac kim lo\u1ea1i, g\u1ed1m s\u1ee9, cao su silicone, s\u01a1n th\u00f4ng th\u01b0\u1eddng, ch\u1ea5t ph\u1ee7 v\u00e0 c\u00e1c ch\u1ea5t \u0111\u1ed9n ng\u00e0nh h\u00f3a ch\u1ea5t kh\u00e1c. B\u1ed9t silicon<\/a> c\u1ea5p \u0111i\u1ec7n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00fac c\u00e1ch \u0111i\u1ec7n cho c\u00e1c thi\u1ebft b\u1ecb v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng, \u0111\u00fac c\u00e1ch \u0111i\u1ec7n cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n cao \u00e1p, APG (c\u00f4ng ngh\u1ec7 \u0111\u00fac gel \u00e1p l\u1ef1c nh\u1ef1a epoxy t\u1ef1 \u0111\u1ed9ng) trong quy tr\u00ecnh v\u1eadt li\u1ec7u phun, b\u1ea7u epoxy v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p men s\u1ee9 cao c\u1ea5p.<\/p>\n

Y\u00eau c\u1ea7u v\u1ec1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t b\u1ed9t silicon<\/a> c\u1ea5p \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n t\u1eed<\/p>\n\n\n\n\n\n\n\n
\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt \/ L\u01b0\u1edbi<\/td>\nK\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh D50 \/ \u03bcm<\/td>\nDi\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee5 th\u1ec3 \/(cm2<\/sup>\/g)<\/td>\nM\u1ee9c \u0111\u1ed9 chi ti\u1ebft t\u00edch l\u0169y<\/td>\n<\/tr>\n
300<\/td>\n21,00 ~ 25,00<\/td>\n1700~2100<\/td>\n\u226450\u03bcm\u226575%<\/td>\n<\/tr>\n
400<\/td>\n16,00~20,00<\/td>\n2100~2400<\/td>\n\u226439\u03bcm\u226575%<\/td>\n<\/tr>\n
600<\/td>\n11,00~15,00<\/td>\n2400~3000<\/td>\n\u226425\u03bcm\u226575%<\/td>\n<\/tr>\n
1000<\/td>\n8,00~10,00<\/td>\n3000~4000<\/td>\n\u226410\u03bcm\u226565%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ed9t vi h\u1ea1t silicon<\/a> c\u1ea5p \u0111i\u1ec7n t\u1eed ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n t\u1eed, v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i b\u1eb1ng nh\u1ef1a v\u00e0 v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i, v\u1eadt li\u1ec7u \u0111\u00fac nh\u1ef1a epoxy, v\u1eadt li\u1ec7u l\u00e0m b\u1ea7u v\u00e0 s\u01a1n cao c\u1ea5p, ch\u1ea5t ph\u1ee7, ch\u1ea5t \u0111\u1ed9n nh\u1ef1a k\u1ef9 thu\u1eadt, ch\u1ea5t k\u1ebft d\u00ednh, cao su silicone, \u0111\u00fac ch\u00ednh x\u00e1c, Cao c\u1ea5p ch\u1ea5t \u0111\u1ed9n men g\u1ed1m v\u00e0 c\u00e1c l\u0129nh v\u1ef1c h\u00f3a h\u1ecdc kh\u00e1c. L\u01b0\u1ee3ng h\u1ee3p ch\u1ea5t \u0111\u00fac epoxy ti\u00eau th\u1ee5 h\u00e0ng n\u0103m l\u00e0 h\u00e0ng ch\u1ee5c ngh\u00ecn t\u1ea5n, v\u00e0 h\u00e0m l\u01b0\u1ee3ng b\u1ed9t silica<\/a> trong ch\u1ea5t \u0111\u1ed9n chi\u1ebfm t\u1eeb 70% \u0111\u1ebfn 90%.<\/p>\n

H\u00e0m l\u01b0\u1ee3ng SiO2 <\/sub>c\u1ee7a b\u1ed9t silicon<\/a> si\u00eau m\u1ecbn c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao cao h\u01a1n 99,9%, v\u00e0 n\u00f3 c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn, \u0111\u1ed9 tinh khi\u1ebft h\u00f3a h\u1ecdc cao v\u00e0 kh\u1ea3 n\u0103ng l\u1ea5p \u0111\u1ea7y t\u1ed1t. Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho h\u1ee3p ch\u1ea5t \u0111\u00fac nh\u1ef1a m\u1ea1ch t\u00edch h\u1ee3p quy m\u00f4 l\u1edbn v\u00e0 quy m\u00f4 c\u1ef1c l\u1edbn, h\u1ee3p ch\u1ea5t \u0111\u00fac linh ki\u1ec7n \u0111i\u1ec7n t\u1eed, h\u1ee3p ch\u1ea5t b\u1ea7u \u0111\u00fac epoxy, ch\u1ea5t ph\u1ee7 cao c\u1ea5p, s\u01a1n, nh\u1ef1a k\u1ef9 thu\u1eadt, ch\u1ea5t k\u1ebft d\u00ednh, cao su silicone, \u0111\u00fac ch\u00ednh x\u00e1c, g\u1ed1m s\u1ee9 v\u00e0 h\u00f3a ch\u1ea5t ti\u00ean ti\u1ebfn \u0111\u1ed3ng ru\u1ed9ng.<\/p>\n

B\u1ed9t silicon<\/a> h\u00ecnh c\u1ea7u c\u00f3 t\u1ef7 l\u1ec7 l\u1ea5p \u0111\u1ea7y cao, v\u00e0 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf c\u00e0ng nh\u1ecf, \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u00e0ng th\u1ea5p; h\u1ee3p ch\u1ea5t bao b\u00ec nh\u1ef1a c\u00f3 n\u1ed3ng \u0111\u1ed9 \u1ee9ng su\u1ea5t th\u1ea5p nh\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n cao nh\u1ea5t; h\u1ec7 s\u1ed1 ma s\u00e1t nh\u1ecf, v\u00e0 \u0111\u1ed9 m\u00f2n tr\u00ean khu\u00f4n nh\u1ecf. Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u1eadt li\u1ec7u bao b\u00ec nh\u1ef1a \u0111i\u1ec7n t\u1eed, l\u1edbp ph\u1ee7, s\u00e0n epoxy, cao su silicone v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n

\u0110\u1ec3 nung ch\u1ea3y t\u1ed1t h\u01a1n c\u00e1c ch\u1ea5t \u0111\u1ed9n kho\u00e1ng phi kim lo\u1ea1i v\u1edbi c\u00e1c polyme ph\u00e2n t\u1eed cao, c\u00e1c kho\u00e1ng phi kim lo\u1ea1i ph\u1ea3i \u0111\u01b0\u1ee3c nghi\u1ec1n nh\u1ecf, tinh ch\u1ebf v\u00e0 bi\u1ebfn t\u00ednh. N\u00f3i chung, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a ch\u1ea5t \u0111\u1ed9n c\u00e0ng nh\u1ecf v\u00e0 \u0111\u1ed9 ph\u00e2n t\u00e1n c\u00e0ng \u0111\u1ed3ng \u0111\u1ec1u th\u00ec t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m c\u00e0ng t\u1ed1t.<\/p>\n

B\u1ed9t silicon nghi\u1ec1n si\u00eau m\u1ecbn<\/h4>\n

Vi\u1ec7c s\u1eed d\u1ee5ng kho\u00e1ng th\u1ea1ch anh t\u1ef1 nhi\u00ean l\u00e0m nguy\u00ean li\u1ec7u \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf b\u1ed9t si\u00eau m\u1ecbn kh\u00f4ng ch\u1ec9 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng m\u00e0 c\u00f2n gi\u00fap gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t c\u00f3 h\u1ea1i trong b\u1ed9t m\u1ed9t c\u00e1ch t\u1ed1t h\u01a1n. Kho\u00e1ng th\u1ea1ch anh t\u1ef1 nhi\u00ean ch\u1ee9a m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c t\u1ea1p ch\u1ea5t v\u00e0 v\u1ebft n\u1ee9t. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 nghi\u1ec1n si\u00eau m\u1ecbn c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ed1 l\u01b0\u1ee3ng v\u1ebft n\u1ee9t v\u00e0 khuy\u1ebft t\u1eadt. K\u1ebft h\u1ee3p v\u1edbi qu\u00e1 tr\u00ecnh thanh l\u1ecdc, h\u00e0m l\u01b0\u1ee3ng c\u00e1c t\u1ea1p ch\u1ea5t c\u00f3 h\u1ea1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u t\u1ed1t h\u01a1n. Vi\u1ec7c chu\u1ea9n b\u1ecb b\u1ed9t k\u1ebft tinh, b\u1ed9t cristobalit, b\u1ed9t nung ch\u1ea3y v\u00e0 c\u00e1c lo\u1ea1i b\u1ed9t ho\u1ea1t t\u00ednh kh\u00e1c nhau \u0111\u00f2i h\u1ecfi qu\u00e1 tr\u00ecnh nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i.<\/p>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn, si\u00eau m\u1ecbn s\u1ebd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c h\u1ea1t b\u1ed9t c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Hi\u1ec7n t\u1ea1i, c\u00e1c t\u1ed5 h\u1ee3p \u0111\u01a1n v\u1ecb c\u1ee7a thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn v\u00e0 nghi\u1ec1n si\u00eau m\u1ecbn bao g\u1ed3m: m\u00e1y nghi\u1ec1n bi c\u1ed9ng v\u1edbi ph\u00e2n lo\u1ea1i, m\u00e1y nghi\u1ec1n rung l\u1ec7ch t\u00e2m c\u1ed9ng v\u1edbi ph\u00e2n lo\u1ea1i v\u00e0 m\u00e1y nghi\u1ec1n rung c\u1ed9ng v\u1edbi ph\u00e2n lo\u1ea1i.<\/p>\n

\"\"Quy tr\u00ecnh s\u1ea3n xu\u1ea5t m\u1ea1ch k\u00edn b\u1ed9t silicon<\/a> \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i t\u1eeb m\u00e1y nghi\u1ec1n bi<\/p>\n

C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u00e2n lo\u1ea1i m\u00e1y nghi\u1ec1n bi: s\u1ea3n l\u01b0\u1ee3ng l\u1edbn, v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb \u0111\u01a1n gi\u1ea3n, chi ph\u00ed b\u1ea3o tr\u00ec th\u1ea5p, l\u1ef1a ch\u1ecdn linh ho\u1ea1t ph\u01b0\u01a1ng ti\u1ec7n nghi\u1ec1n v\u00e0 l\u1edbp l\u00f3t, \u00f4 nhi\u1ec5m th\u1ea5p \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh x\u1eed l\u00fd v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, v\u1eadn h\u00e0nh t\u1ed5ng th\u1ec3 \u0111\u00e1ng tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 s\u1ea3n ph\u1ea9m \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng. Vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9t silicon<\/a> c\u00f3 th\u1ec3 l\u00e0m cho s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 tr\u1eafng cao, \u0111\u1ed9 b\u00f3ng \u0111\u1eb9p v\u00e0 ch\u1ec9 s\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh. Vi\u1ec7c s\u1ea3n xu\u1ea5t b\u1ed9t silicon<\/a> si\u00eau m\u1ecbn c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch nghi\u1ec1n th\u00e0nh b\u1ed9t si\u00eau m\u1ecbn ho\u1eb7c nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i tr\u00ean c\u01a1 s\u1edf chu\u1ea9n b\u1ecb c\u00e1t c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao.<\/p>\n

\"\"<\/p>\n

Bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t silicon<\/h4>\n

T\u00e1c d\u1ee5ng c\u1ee7a ch\u1ea5t k\u1ebft n\u1ed1i silan \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho s\u1ef1 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t silicon<\/a> l\u00e0 r\u1ea5t l\u00fd t\u01b0\u1edfng. N\u00f3 c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i t\u00ednh \u01b0a n\u01b0\u1edbc c\u1ee7a b\u1ed9t silica<\/a> th\u00e0nh b\u1ec1 m\u1eb7t h\u1eefu c\u01a1-philic, v\u00e0 c\u0169ng c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh th\u1ea5m \u01b0\u1edbt c\u1ee7a v\u1eadt li\u1ec7u polyme h\u1eefu c\u01a1 \u0111\u1ed1i v\u1edbi b\u1ed9t c\u1ee7a n\u00f3, v\u00e0 l\u00e0m cho b\u1ed9t silica v\u00e0 v\u1eadt li\u1ec7u polyme h\u1eefu c\u01a1 nh\u1eadn ra giao di\u1ec7n li\u00ean k\u1ebft c\u1ed9ng h\u00f3a tr\u1ecb m\u1ea1nh m\u1ebd th\u00f4ng qua c\u00e1c nh\u00f3m ch\u1ee9c. .<\/p>\n

Hi\u1ec7u qu\u1ea3 \u1ee9ng d\u1ee5ng c\u1ee7a t\u00e1c nh\u00e2n n\u1ed1i silan li\u00ean quan \u0111\u1ebfn lo\u1ea1i \u0111\u00e3 ch\u1ecdn, li\u1ec1u l\u01b0\u1ee3ng, \u0111i\u1ec1u ki\u1ec7n th\u1ee7y ph\u00e2n, \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u1ea5t n\u1ec1n, c\u00e1c d\u1ecbp \u1ee9ng d\u1ee5ng, ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u polyme h\u1eefu c\u01a1.<\/p>\n

H\u00ecnh c\u1ea7u h\u00f3a b\u1ed9t silica<\/h4>\n

Hi\u1ec7n t\u1ea1i, 97% v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i m\u1ea1ch t\u00edch h\u1ee3p (IC) s\u1eed d\u1ee5ng h\u1ee3p ch\u1ea5t \u0111\u00fac epoxy (EMC), v\u00e0 trong th\u00e0nh ph\u1ea7n c\u1ee7a EMC, vi h\u1ea1t silicon<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t, chi\u1ebfm 70% \u0111\u1ebfn 90% kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a h\u1ee3p ch\u1ea5t \u0111\u00fac epoxy. So v\u1edbi vi h\u1ea1t silic d\u1ea1ng g\u00f3c, vi h\u1ea1t silic h\u00ecnh khuy\u00ean c\u00f3 t\u1ef7 l\u1ec7 l\u1ea5p \u0111\u1ea7y cao h\u01a1n, h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t nh\u1ecf h\u01a1n, \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p h\u01a1n, t\u1eadp trung \u1ee9ng su\u1ea5t \u00edt h\u01a1n, \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb vi \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t. Do \u0111\u00f3, ngo\u00e0i c\u00e1c h\u1ea1t c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 si\u00eau m\u1ecbn, h\u00ecnh c\u1ea7u h\u00f3a h\u1ea1t c\u0169ng tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u1ee7a vi h\u1ea1t silicon<\/a>.<\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf b\u1ed9t silicon<\/a> h\u00ecnh c\u1ea7u hi\u1ec7n nay c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd v\u00e0 ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd l\u00e0: ph\u01b0\u01a1ng ph\u00e1p b\u1eafn bi, ph\u01b0\u01a1ng ph\u00e1p phun n\u00f3ng ch\u1ea3y nhi\u1ec7t \u0111\u1ed9 cao, ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed1t ch\u00e1y nhi\u1ec7t \u0111\u1ed9 th\u1ea5p t\u1ef1 lan truy\u1ec1n, ph\u01b0\u01a1ng ph\u00e1p plasma v\u00e0 h\u00ecnh c\u1ea7u nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc bao g\u1ed3m: ph\u01b0\u01a1ng ph\u00e1p pha kh\u00ed, ph\u01b0\u01a1ng ph\u00e1p t\u1ed5ng h\u1ee3p th\u1ee7y nhi\u1ec7t, ph\u01b0\u01a1ng ph\u00e1p sol-gel, ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a, ph\u01b0\u01a1ng ph\u00e1p vi nh\u0169 t\u01b0\u01a1ng, … Trong ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc, do s\u1ef1 k\u1ebft t\u1ee5 nghi\u00eam tr\u1ecdng c\u1ee7a c\u00e1c h\u1ea1t, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u1ee7a s\u1ea3n ph\u1ea9m l\u1edbn h\u01a1n, v\u00e0 gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u l\u1edbn n\u00ean kh\u00f3 tr\u1ed9n v\u1edbi nh\u1ef1a epoxy khi \u0111\u1ed5 \u0111\u1ea7y m\u1ed9t l\u01b0\u1ee3ng l\u1edbn. Do \u0111\u00f3, ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n nay ch\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd.<\/p>\n

T\u1ed5ng quan v\u1ec1 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p b\u1ed9t silicon<\/h4>\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p b\u1ed9t silicon<\/a> l\u00e0 m\u1ed9t ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng nhi\u1ec1u v\u1ed1n, c\u00f4ng ngh\u1ec7 v\u00e0 t\u00e0i nguy\u00ean. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng ngh\u1ec7 cao, b\u1ed9t vi kim lo\u1ea1i silicon<\/a> ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u h\u01a1n. Nhu c\u1ea7u v\u1ec1 b\u1ed9t silicon<\/a> si\u00eau tinh khi\u1ebft c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao c\u1ee7a th\u1ebf gi\u1edbi s\u1ebd ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p vi m\u1ea1ch. Ng\u01b0\u1eddi ta \u01b0\u1edbc t\u00ednh r\u1eb1ng nhu c\u1ea7u c\u1ee7a th\u1ebf gi\u1edbi \u0111\u1ed1i v\u1edbi n\u00f3 s\u1ebd t\u0103ng v\u1edbi t\u1ed1c \u0111\u1ed9 20% trong 10 n\u0103m t\u1edbi. B\u1ed9t silicon<\/a> si\u00eau m\u1ecbn, \u0111\u1ed9 tinh khi\u1ebft cao \u0111\u00e3 tr\u1edf th\u00e0nh \u0111i\u1ec3m n\u00f3ng cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p, b\u1ed9t silicon h\u00ecnh c\u1ea7u \u0111\u00e3 tr\u1edf th\u00e0nh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p, v\u00e0 c\u00f4ng ngh\u1ec7 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c \u0111\u1ea9y m\u1ea1nh.<\/p>\n

 <\/p>\n

Ngu\u1ed3n b\u00e0i vi\u1ebft: China Powder Network<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9t silica \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u1ea1ch anh t\u1ef1 nhi\u00ean (SiO2) ho\u1eb7c th\u1ea1ch anh nung ch\u1ea3y (SiO2 v\u00f4 \u0111\u1ecbnh h\u00ecnh sau khi nung ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 l\u00e0m ngu\u1ed9i th\u1ea1ch anh t\u1ef1 nhi\u00ean), \u0111\u01b0\u1ee3c nghi\u1ec1n, nghi\u1ec1n bi (ho\u1eb7c rung, m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c), tuy\u1ec3n n\u1ed5i, t\u1ea9y r\u1eeda, n\u01b0\u1edbc tinh khi\u1ebft cao x\u1eed l\u00fd, vv. Ch\u1ebf bi\u1ebfn th\u00e0nh b\u1ed9t vi m\u00f4.<\/p>\n","protected":false},"author":6,"featured_media":87310,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[1355,887],"class_list":["post-114179","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-may-nghien-silicon","tag-xay-sieu-min"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/114179","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=114179"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/114179\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/87310"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=114179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=114179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=114179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}