{"id":2389,"date":"2024-12-26T09:37:05","date_gmt":"2024-12-26T01:37:05","guid":{"rendered":"https:\/\/www.superfinemill.com\/?p=2389"},"modified":"2024-12-26T11:27:49","modified_gmt":"2024-12-26T03:27:49","slug":"brief-discussion-on-the-application-and-development-trend-of-powder-fillers","status":"publish","type":"post","link":"https:\/\/www.superfinemill.com\/vi\/brief-discussion-on-the-application-and-development-trend-of-powder-fillers\/","title":{"rendered":"Th\u1ea3o lu\u1eadn ng\u1eafn g\u1ecdn v\u1ec1 \u1ee9ng d\u1ee5ng v\u00e0 xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u1ee7a ch\u1ea5t \u0111\u1ed9n b\u1ed9t"},"content":{"rendered":"
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Trong k\u1ef7 nguy\u00ean b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ef1 chuy\u1ec3n \u0111\u1ed5i c\u1ee7a ng\u00e0nh s\u01a1n, vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c lo\u1ea1i s\u01a1n th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ea5t y\u1ebfu c\u1ee7a c\u00e1c doanh nghi\u1ec7p. Tuy nhi\u00ean, s\u01a1n th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf s\u01a1n g\u1ed1c n\u01b0\u1edbc. N\u1ebfu c\u00e1c c\u00f4ng ty v\u1ed9i v\u00e0ng ph\u00e1t tri\u1ec3n s\u01a1n g\u1ed1c n\u01b0\u1edbc, t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m ch\u1eafc ch\u1eafn s\u1ebd x\u1ea3y ra. Ngo\u00e0i s\u01a1n g\u1ed1c n\u01b0\u1edbc, s\u01a1n c\u00f3 h\u00e0m l\u01b0\u1ee3ng r\u1eafn cao, s\u01a1n kh\u00f4ng dung m\u00f4i v\u00e0 s\u01a1n b\u1ed9t c\u0169ng l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ebd tr\u1edf th\u00e0nh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n ch\u00ednh cho ng\u00e0nh s\u01a1n. Theo m\u1ed9t b\u00e1o c\u00e1o nghi\u00ean c\u1ee9u, khu v\u1ef1c Ch\u00e2u \u00c1 - Th\u00e1i B\u00ecnh D\u01b0\u01a1ng d\u1ef1 ki\u1ebfn s\u1ebd c\u00f3 m\u1ee9c t\u0103ng tr\u01b0\u1edfng cao nh\u1ea5t v\u1ec1 c\u1ea3 gi\u00e1 tr\u1ecb v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a th\u1ecb tr\u01b0\u1eddng s\u01a1n b\u1ed9t t\u1eeb n\u0103m 2017 \u0111\u1ebfn n\u0103m 2022. C\u00f4ng ngh\u1ec7 s\u01a1n b\u1ed9t \u0111ang ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng th\u1ecb tr\u01b0\u1eddng theo nhu c\u1ea7u. \u0110\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi c\u00e1c l\u1ef1c l\u01b0\u1ee3ng th\u1ecb tr\u01b0\u1eddng, nghi\u00ean c\u1ee9u v\u1ec1 \u1ee9ng d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u b\u1ed9t kh\u00e1c nhau trong s\u01a1n ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n

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I. T\u1ed5ng quan v\u1ec1 s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h2>\n

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1. Gi\u1edbi thi\u1ec7u v\u1ec1 s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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L\u1edbp ph\u1ee7 b\u1ed9t c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nh\u1eefng n\u0103m 1950 nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u1edbi h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn 100% v\u00e0 kh\u00f4ng c\u00f3 h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 d\u1ec5 bay h\u01a1i (VOC). L\u1edbp ph\u1ee7 b\u1ed9t mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf: ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, gi\u1ea3m \u00f4 nhi\u1ec5m, x\u1eed l\u00fd \u0111\u01a1n gi\u1ea3n, d\u1ec5 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 hi\u1ec7u su\u1ea5t ph\u1ee7 tuy\u1ec7t v\u1eddi.<\/p>\n

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L\u1edbp ph\u1ee7 b\u1ed9t \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a polyme<\/a>, b\u1ed9t m\u00e0u, ch\u1ea5t \u0111\u1ed9n v\u00e0 ph\u1ee5 gia. V\u00ec ch\u00fang kh\u00f4ng gi\u1ea3i ph\u00f3ng dung m\u00f4i d\u1ec5 bay h\u01a1i n\u00ean ch\u00fang th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 sinh th\u00e1i v\u01b0\u1ee3t tr\u1ed9i. L\u1edbp ph\u1ee7 b\u1ed9t c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c l\u1edbp d\u00e0y h\u01a1n ch\u1ec9 trong m\u1ed9t l\u1ea7n thi c\u00f4ng, gi\u00fap t\u0103ng hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t. Ch\u00fang c\u0169ng mang l\u1ea1i c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u00f3a h\u1ecdc v\u00e0 l\u1edbp ho\u00e0n thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao. S\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ed9t gi\u00fap ti\u1ebft ki\u1ec7m c\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u00e0i nguy\u00ean, v\u1edbi t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng l\u00ean t\u1edbi 99%. C\u00e1c l\u1edbp ph\u1ee7 n\u00e0y an to\u00e0n khi s\u1eed d\u1ee5ng v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t kinh t\u1ebf. L\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p kh\u00f4ng ch\u1ee9a dung m\u00f4i, l\u1edbp ph\u1ee7 b\u1ed9t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nguy\u00ean t\u1eafc \u201cb\u1ed1n E\u201d ph\u1ed5 bi\u1ebfn tr\u00ean to\u00e0n c\u1ea7u: ti\u1ebft ki\u1ec7m, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng, hi\u1ec7u qu\u1ea3 v\u00e0 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi.<\/p>\n

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2. T\u1ed5ng quan v\u1ec1 th\u1ecb tr\u01b0\u1eddng s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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Khi nhu c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 xe h\u1ea1ng nh\u1eb9 t\u0103ng l\u00ean, nhu c\u1ea7u v\u1ec1 s\u01a1n t\u0129nh \u0111i\u1ec7n c\u0169ng t\u0103ng theo. Nhu c\u1ea7u t\u0103ng t\u1eeb c\u1ea3 ng\u00e0nh c\u00f4ng nghi\u1ec7p thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i c\u1ee7a c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n v\u00e0 m\u1edbi n\u1ed5i \u0111\u00e3 g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 t\u0103ng tr\u01b0\u1edfng c\u1ee7a th\u1ecb tr\u01b0\u1eddng s\u01a1n t\u0129nh \u0111i\u1ec7n. Theo c\u00f4ng ty nghi\u00ean c\u1ee9u th\u1ecb tr\u01b0\u1eddng Markets and Markets, th\u1ecb tr\u01b0\u1eddng s\u01a1n t\u0129nh \u0111i\u1ec7n to\u00e0n c\u1ea7u d\u1ef1 ki\u1ebfn s\u1ebd \u0111\u1ea1t $134,9 t\u1ef7 v\u00e0o n\u0103m 2022, v\u1edbi t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng k\u00e9p h\u00e0ng n\u0103m (CAGR) l\u00e0 6,75% t\u1eeb n\u0103m 2017 \u0111\u1ebfn n\u0103m 2022.<\/p>\n

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Do m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1, \u0111\u1eb7c bi\u1ec7t l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u00f4 th\u1ecb h\u00f3a nhanh ch\u00f3ng v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c ng\u00e0nh nh\u00e0 \u1edf, x\u00e2y d\u1ef1ng v\u00e0 \u00f4 t\u00f4, nhu c\u1ea7u v\u1ec1 s\u01a1n t\u0129nh \u0111i\u1ec7n \u1edf Trung Qu\u1ed1c \u0111\u00e3 t\u0103ng nhanh h\u01a1n b\u1ea5t k\u1ef3 qu\u1ed1c gia n\u00e0o kh\u00e1c. N\u0103m 2016, s\u1ea3n l\u01b0\u1ee3ng ng\u00e0nh s\u01a1n t\u0129nh \u0111i\u1ec7n c\u1ee7a Trung Qu\u1ed1c \u0111\u1ea1t 2,07 tri\u1ec7u t\u1ea5n, tr\u1edf th\u00e0nh th\u1ecb tr\u01b0\u1eddng s\u01a1n t\u0129nh \u0111i\u1ec7n l\u1edbn nh\u1ea5t to\u00e0n c\u1ea7u.<\/p>\n

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Bi\u1ec3u \u0111\u1ed3 1: Bi\u1ebfn \u0111\u1ed9ng s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a ng\u00e0nh s\u01a1n t\u0129nh \u0111i\u1ec7n Trung Qu\u1ed1c t\u1eeb n\u0103m 2009 \u0111\u1ebfn n\u0103m 2016 (\u0111\u01a1n v\u1ecb: 10.000 t\u1ea5n)<\/p>\n

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V\u1ec1 s\u1ea3n l\u01b0\u1ee3ng, s\u01a1n b\u1ed9t hi\u1ec7n chi\u1ebfm kho\u1ea3ng 11% trong t\u1ed5ng s\u1ea3n l\u01b0\u1ee3ng s\u01a1n c\u1ee7a Trung Qu\u1ed1c. Theo \u201cK\u1ebf ho\u1ea1ch 5 n\u0103m l\u1ea7n th\u1ee9 13\u201d, t\u1ed5ng s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a ng\u00e0nh s\u01a1n d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng l\u00ean kho\u1ea3ng 22 tri\u1ec7u t\u1ea5n v\u00e0o n\u0103m 2020. Trong s\u1ed1 n\u00e0y, s\u01a1n ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng d\u1ef1 ki\u1ebfn s\u1ebd chi\u1ebfm 57% trong t\u1ed5ng s\u1ea3n l\u01b0\u1ee3ng. \u0110\u1ebfn n\u0103m 2020, th\u1ecb ph\u1ea7n s\u01a1n b\u1ed9t d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng l\u00ean kho\u1ea3ng 18%, v\u1edbi s\u1ea3n l\u01b0\u1ee3ng kho\u1ea3ng 4 tri\u1ec7u t\u1ea5n. S\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a s\u01a1n b\u1ed9t ch\u1eafc ch\u1eafn s\u1ebd th\u00fac \u0111\u1ea9y nhu c\u1ea7u v\u1ec1 ch\u1ea5t \u0111\u1ed9n b\u1ed9t t\u0103ng tr\u01b0\u1edfng.<\/p>\n

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\u00a0<\/p>\n

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II. Ph\u00e2n t\u00edch \u1ee9ng d\u1ee5ng c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u b\u1ed9t kh\u00e1c nhau trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h2>\n

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Ch\u1ea5t \u0111\u1ed9n trong l\u1edbp ph\u1ee7 kh\u00f4ng ch\u1ec9 gi\u00fap gi\u1ea3m chi ph\u00ed m\u00e0 c\u00f2n t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m l\u1edbp ph\u1ee7. V\u00ed d\u1ee5, ch\u1ea5t \u0111\u1ed9n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng tr\u1ea7y x\u01b0\u1edbc, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ed1ng \u1ea9m c\u1ee7a l\u1edbp ph\u1ee7. Ch\u00fang c\u0169ng gi\u00fap gi\u1ea3m \u0111\u1ed9 v\u00f5ng c\u1ee7a l\u1edbp ph\u1ee7 trong qu\u00e1 tr\u00ecnh san ph\u1eb3ng n\u00f3ng ch\u1ea3y.<\/p>\n

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Khi l\u1ef1a ch\u1ecdn ch\u1ea5t \u0111\u1ed9n cho l\u1edbp ph\u1ee7 b\u1ed9t, c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 m\u1eadt \u0111\u1ed9, hi\u1ec7u su\u1ea5t ph\u00e2n t\u00e1n, ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 \u0111\u1ed9 tinh khi\u1ebft ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t. Nh\u00ecn chung, m\u1eadt \u0111\u1ed9 ch\u1ea5t \u0111\u1ed9n c\u00e0ng cao th\u00ec \u0111\u1ed9 ph\u1ee7 c\u1ee7a n\u00f3 trong l\u1edbp ph\u1ee7 b\u1ed9t c\u00e0ng th\u1ea5p. C\u00e1c h\u1ea1t l\u1edbn h\u01a1n c\u00f3 xu h\u01b0\u1edbng ph\u00e2n t\u00e1n t\u1ed1t h\u01a1n c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n. Ch\u1ea5t \u0111\u1ed9n ph\u1ea3i tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc \u0111\u1ec3 tr\u00e1nh ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c c\u1ee7a c\u00f4ng th\u1ee9c b\u1ed9t, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eafc t\u1ed1 v\u00e0 m\u00e0u c\u1ee7a n\u00f3 ph\u1ea3i c\u00e0ng tr\u1eafng c\u00e0ng t\u1ed1t. C\u00e1c v\u1eadt li\u1ec7u b\u1ed9t th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 b\u1ed9t bao g\u1ed3m canxi cacbonat, bari sulfat, talc, b\u1ed9t mica, kaolin, silica v\u00e0 wollastonite.<\/p>\n

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1. \u1ee8ng d\u1ee5ng c\u1ee7a Canxi Cacbonat trong S\u01a1n B\u1ed9t<\/h3>\n

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Canxi cacbonat c\u00f3 hai d\u1ea1ng: canxi cacbonat nh\u1eb9 (canxi cacbonat k\u1ebft t\u1ee7a) v\u00e0 canxi cacbonat n\u1eb7ng. B\u1ea5t k\u1ec3 lo\u1ea1i n\u00e0o, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a canxi cacbonat \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 b\u00f3ng c\u1ee7a l\u1edbp ph\u1ee7. Tuy nhi\u00ean, canxi cacbonat th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi do kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft k\u00e9m h\u01a1n.<\/p>\n

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Trong l\u1edbp ph\u1ee7 b\u1ed9t, canxi cacbonat n\u1eb7ng c\u00f3 nhi\u1ec1u m\u1ee5c \u0111\u00edch. N\u00f3 c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n titanium dioxide v\u00e0 s\u1eafc t\u1ed1 m\u00e0u, thay th\u1ebf canxi cacbonat nh\u1eb9 v\u00e0 bari sunfat k\u1ebft t\u1ee7a, ng\u0103n ng\u1eeba \u0103n m\u00f2n v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t thay th\u1ebf m\u1ed9t ph\u1ea7n cho s\u1eafc t\u1ed1 ch\u1ed1ng g\u1ec9.<\/p>\n

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Khi s\u1eed d\u1ee5ng trong s\u01a1n ki\u1ebfn tr\u00fac n\u1ed9i th\u1ea5t, canxi cacbonat n\u1eb7ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ri\u00eang ho\u1eb7c k\u1ebft h\u1ee3p v\u1edbi b\u1ed9t talc. So v\u1edbi talc, canxi cacbonat gi\u00fap gi\u1ea3m t\u1ed1c \u0111\u1ed9 b\u1ed9t h\u00f3a, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gi\u1eef m\u00e0u trong s\u01a1n m\u00e0u s\u00e1ng v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ea5m m\u1ed1c. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng ch\u1ed1ng axit k\u00e9m c\u1ee7a n\u00f3 h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 ngo\u1ea1i th\u1ea5t.<\/p>\n

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M\u1eb7t kh\u00e1c, canxi cacbonat nh\u1eb9 c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf h\u01a1n, ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t h\u1eb9p h\u01a1n, h\u1ea5p th\u1ee5 d\u1ea7u v\u00e0 \u0111\u1ed9 s\u00e1ng cao h\u01a1n. N\u00f3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi hi\u1ec7u \u1ee9ng l\u00e0m m\u1edd t\u1ed1i \u0111a.<\/p>\n

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2. \u1ee8ng d\u1ee5ng c\u1ee7a Bari Sunfat trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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Bari sulfat d\u00f9ng trong l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh hai lo\u1ea1i: t\u1ef1 nhi\u00ean v\u00e0 t\u1ed5ng h\u1ee3p. D\u1ea1ng t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9t barit, v\u00e0 d\u1ea1ng t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bari sulfat k\u1ebft t\u1ee7a.<\/p>\n

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Trong s\u01a1n b\u1ed9t, bari sunfat k\u1ebft t\u1ee7a t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 ph\u1eb3ng v\u00e0 \u0111\u1ed9 b\u00f3ng c\u1ee7a l\u1edbp ph\u1ee7 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi thu\u1ed1c nhu\u1ed9m. N\u00f3 gi\u00fap \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 l\u00fd t\u01b0\u1edfng trong qu\u00e1 tr\u00ecnh phun, \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 s\u01a1n b\u1ed9t cao.<\/p>\n

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B\u1ed9t barit ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n l\u00f3t c\u00f4ng nghi\u1ec7p v\u00e0 l\u1edbp ph\u1ee7 trung gian \u00f4 t\u00f4 \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n l\u1edbp ph\u1ee7 cao, kh\u1ea3 n\u0103ng l\u00e0m \u0111\u1ea7y v\u00e0 t\u00ednh tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc. N\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng khi c\u1ea7n \u0111\u1ed9 b\u00f3ng cao h\u01a1n. Do c\u00f3 ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 cao (1,637), b\u1ed9t barit m\u1ecbn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t t\u1ea1o m\u00e0u tr\u1eafng trong m\u1edd, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh ch\u1ea5t thay th\u1ebf tuy\u1ec7t v\u1eddi cho m\u1ed9t ph\u1ea7n titanium dioxide trong l\u1edbp ph\u1ee7.<\/p>\n

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3. \u1ee8ng d\u1ee5ng b\u1ed9t Mica trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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B\u1ed9t mica \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c silicat ph\u1ee9c h\u1ee3p v\u00e0 c\u00f3 c\u00e1c h\u1ea1t d\u1ea1ng v\u1ea3y. N\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, ch\u1ecbu axit v\u00e0 ki\u1ec1m tuy\u1ec7t v\u1eddi, v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ebfn \u0111\u1ed9 ch\u1ea3y c\u1ee7a l\u1edbp ph\u1ee7 b\u1ed9t. B\u1ed9t mica th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 b\u1ed9t ch\u1ecbu nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n v\u00e0 c\u0169ng c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ea5t \u0111\u1ed9n trong l\u1edbp ph\u1ee7 b\u1ed9t c\u00f3 k\u1ebft c\u1ea5u.<\/p>\n

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Trong s\u1ed1 c\u00e1c lo\u1ea1i mica kh\u00e1c nhau, sericit c\u00f3 c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc t\u01b0\u01a1ng t\u1ef1 nh\u01b0 kaolin, v\u00e0 n\u00f3 k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a c\u1ea3 kho\u00e1ng mica v\u00e0 kho\u00e1ng s\u00e9t. \u1ee8ng d\u1ee5ng c\u1ee7a n\u00f3 trong l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 kh\u1ea3 n\u0103ng th\u1ea5m n\u01b0\u1edbc, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m d\u00ednh v\u00e0 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n v\u1ebb ngo\u00e0i t\u1ed5ng th\u1ec3 c\u1ee7a l\u1edbp ph\u1ee7. Ngo\u00e0i ra, c\u00e1c h\u1ea1t thu\u1ed1c nhu\u1ed9m c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111i v\u00e0o l\u1edbp xen k\u1ebd d\u1ea1ng l\u01b0\u1edbi c\u1ee7a b\u1ed9t sericit, gi\u00fap m\u00e0u s\u1eafc lu\u00f4n t\u01b0\u01a1i t\u1eafn theo th\u1eddi gian. B\u1ed9t sericit c\u0169ng th\u1ec3 hi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng t\u1ea3o v\u00e0 ch\u1ed1ng n\u1ea5m m\u1ed1c, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh ch\u1ea5t \u0111\u1ed9n \u0111a ch\u1ee9c n\u0103ng v\u1edbi t\u1ef7 l\u1ec7 chi ph\u00ed-hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi cho l\u1edbp ph\u1ee7.<\/p>\n

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4. \u1ee8ng d\u1ee5ng b\u1ed9t Talcum trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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B\u1ed9t talc, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 silicat magi\u00ea ng\u1eadm n\u01b0\u1edbc, \u0111\u01b0\u1ee3c nghi\u1ec1n tr\u1ef1c ti\u1ebfp t\u1eeb qu\u1eb7ng talc. C\u00e1c h\u1ea1t c\u1ee7a n\u00f3 l\u00e0 tinh th\u1ec3 h\u00ecnh kim c\u00f3 c\u1ea3m gi\u00e1c nh\u1eddn, k\u1ebft c\u1ea5u m\u1ec1m v\u00e0 \u0111\u1ed9 m\u00e0i m\u00f2n th\u1ea5p. Talc c\u00f3 \u0111\u1ed9 huy\u1ec1n ph\u00f9 v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t, c\u0169ng nh\u01b0 m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t l\u01b0u bi\u1ebfn, \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng n\u00f3ng ch\u1ea3y c\u1ee7a l\u1edbp ph\u1ee7 b\u1ed9t. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed9t t\u1ea1o k\u1ebft c\u1ea5u.<\/p>\n

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Talc l\u00e0 v\u1eadt li\u1ec7u ti\u1ebft ki\u1ec7m chi ph\u00ed; tuy nhi\u00ean, n\u00f3 c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng. V\u00ed d\u1ee5, n\u00f3 c\u00f3 t\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 d\u1ea7u cao v\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ch\u1ea5t \u0111\u1ed9n nh\u01b0 b\u1ed9t barit, c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p. Ngo\u00e0i ra, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a n\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, v\u00ec v\u1eady ph\u1ea3i th\u00eam c\u00e1c ch\u1ea5t \u0111\u1ed9n kh\u00e1c khi c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao. Talc ch\u1ee9a c\u00e1c kho\u00e1ng ch\u1ea5t phi kim lo\u1ea1i kh\u00e1c kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi l\u1edbp ph\u1ee7 ngo\u00e0i tr\u1eddi y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft cao, v\u00ec c\u00e1c kho\u00e1ng ch\u1ea5t t\u1ea1p ch\u1ea5t d\u1ec5 ph\u1ea3n \u1ee9ng v\u1edbi axit (nh\u01b0 m\u01b0a axit). Talc c\u0169ng c\u00f3 \u0111\u1eb7c t\u00ednh l\u00e0m m\u1edd, c\u00f3 ngh\u0129a l\u00e0 n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u00e1nh trong l\u1edbp ph\u1ee7 c\u00f3 \u0111\u1ed9 b\u00f3ng cao.<\/p>\n

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5. \u1ee8ng d\u1ee5ng c\u1ee7a Silica trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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Th\u1ea1ch anh b\u1ed9t x\u1ed1p, m\u1ed9t lo\u1ea1i silica, \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn v\u1ec1 \u0111\u1ed9 an to\u00e0n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u01a1n ph\u1ee7 b\u1ed9t, bao g\u1ed3m s\u01a1n ph\u1ee7 ch\u1ed1ng ch\u00e1y, s\u01a1n ph\u1ee7 ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc v\u00e0 s\u01a1n ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n. Chi ph\u00ed th\u1ea5p c\u1ee7a th\u1ea1ch anh b\u1ed9t x\u1ed1p cho ph\u00e9p n\u00f3 gi\u1ea3m t\u1ed5ng chi ph\u00ed c\u1ee7a s\u01a1n ph\u1ee7 b\u1ed9t. N\u00f3 c\u0169ng thay th\u1ebf bari sulfat, l\u00e0m gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng bari h\u00f2a tan v\u00e0 gi\u00fap \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

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Ngo\u00e0i ra, silica kh\u00f3i th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n b\u1ed9t nh\u01b0 m\u1ed9t ch\u1ea5t l\u00e0m l\u1ecfng v\u00e0 ch\u1ed1ng \u0111\u00f3ng c\u1ee5c. Silica kh\u00f3i l\u00e0 m\u1ed9t ch\u1ea5t t\u1ea1o m\u00e0u \u0111a ch\u1ee9c n\u0103ng v\u00e0 l\u00e0 ch\u1ea5t ki\u1ec3m so\u00e1t l\u01b0u bi\u1ebfn hi\u1ec7u qu\u1ea3 trong s\u01a1n. Trong s\u01a1n l\u1ecfng, n\u00f3 th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng nh\u01b0 l\u00e0m \u0111\u1eb7c, t\u00ednh l\u01b0u bi\u1ebfn, ch\u1ed1ng ch\u1ea3y x\u1ec7 v\u00e0 ph\u1ee7 m\u00e9p. Trong s\u01a1n b\u1ed9t, n\u00f3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ea3y c\u1ee7a b\u1ed9t, ng\u0103n ng\u1eeba s\u1ef1 k\u1ebft t\u1ee5 v\u00e0 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh l\u01b0u h\u00f3a.<\/p>\n

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6. \u1ee8ng d\u1ee5ng c\u1ee7a Kaolin trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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Kaolin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n b\u1ed9t \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u bi\u1ebfn v\u00e0 ch\u1ed1ng k\u1ebft t\u1ee7a. Kaolin nung, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t l\u01b0u bi\u1ebfn, c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o hi\u1ec7u \u1ee9ng l\u00e0m m\u1edd, t\u0103ng kh\u1ea3 n\u0103ng che ph\u1ee7 v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u1ed9t talc.<\/p>\n

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Kaolin th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc cao, khi\u1ebfn n\u00f3 kh\u00f4ng ph\u00f9 h\u1ee3p \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u bi\u1ebfn c\u1ee7a l\u1edbp ph\u1ee7 ho\u1eb7c \u0111\u1ec3 t\u1ea1o l\u1edbp ph\u1ee7 k\u1ef5 n\u01b0\u1edbc. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a kaolin dao \u0111\u1ed9ng t\u1eeb 0,2 \u0111\u1ebfn 1 \u03bcm. Kaolin c\u00f3 h\u1ea1t l\u1edbn h\u01a1n c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc th\u1ea5p h\u01a1n v\u00e0 t\u1ea1o hi\u1ec7u \u1ee9ng l\u00e0m m\u1edd t\u1ed1t h\u01a1n, trong khi kaolin c\u00f3 h\u1ea1t nh\u1ecf h\u01a1n (d\u01b0\u1edbi 1 \u03bcm) ph\u00f9 h\u1ee3p cho l\u1edbp ph\u1ee7 b\u00e1n b\u00f3ng v\u00e0 l\u1edbp ph\u1ee7 n\u1ed9i th\u1ea5t.<\/p>\n

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Kaolin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh kaolin nung v\u00e0 kaolin r\u1eeda. Nh\u00ecn chung, kaolin nung c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 d\u1ea7u, \u0111\u1ed9 m\u1edd \u0111\u1ee5c, \u0111\u1ed9 x\u1ed1p, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 s\u00e1ng cao h\u01a1n so v\u1edbi kaolin r\u1eeda.<\/p>\n

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7. \u1ee8ng d\u1ee5ng c\u1ee7a c\u00e1c vi c\u1ea7u th\u1ee7y tinh r\u1ed7ng trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

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Vi c\u1ea7u th\u1ee7y tinh r\u1ed7ng l\u00e0 lo\u1ea1i b\u1ed9t h\u00ecnh c\u1ea7u r\u1ed7ng nh\u1ecf c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, bao g\u1ed3m tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, th\u1ec3 t\u00edch l\u1edbn, \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p, c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n cao, c\u00e1ch nhi\u1ec7t, ch\u1ed1ng \u0103n m\u00f2n, kh\u00f4ng \u0111\u1ed9c h\u1ea1i, kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t, t\u00ednh l\u01b0u \u0111\u1ed9ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/p>\n

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Trong l\u1edbp ph\u1ee7 b\u1ed9t, c\u00e1c vi c\u1ea7u th\u1ee7y tinh r\u1ed7ng c\u00f3 vai tr\u00f2 sau:<\/p>\n

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1) C\u00e1ch nhi\u1ec7t: B\u00ean trong c\u00e1c vi c\u1ea7u th\u1ee7y tinh r\u1ed7ng \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y b\u1eb1ng ch\u00e2n kh\u00f4ng ho\u1eb7c kh\u00ed lo\u00e3ng, t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u1eadt \u0111\u1ed9 v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t v\u1edbi nh\u1ef1a epoxy. T\u00ednh ch\u1ea5t n\u00e0y mang l\u1ea1i cho ch\u00fang kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t tuy\u1ec7t v\u1eddi v\u00e0 l\u00e0m cho ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho l\u1edbp ph\u1ee7 b\u1ed9t ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n

<\/p>\n

\u00a0<\/p>\n

<\/p>\n

\u00a0<\/p>\n

<\/p>\n

2) C\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc: C\u00e1c vi c\u1ea7u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a l\u1edbp ph\u1ee7 b\u1ed9t. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp c\u00f3 th\u1ec3 gi\u1ea3m, t\u00f9y thu\u1ed9c v\u00e0o c\u00e1ch x\u1eed l\u00fd b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c vi c\u1ea7u. C\u00e1c t\u00e1c nh\u00e2n k\u1ebft d\u00ednh th\u00edch h\u1ee3p c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp n\u00e0y.<\/p>\n

<\/p>\n

3) H\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p: T\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 d\u1ea7u c\u1ee7a c\u00e1c vi c\u1ea7u th\u1ee7y tinh r\u1ed7ng dao \u0111\u1ed9ng t\u1eeb 7 mg \u0111\u1ebfn 50 mg tr\u00ean 100g, t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng m\u1eabu. \u0110\u1ed9 h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p n\u00e0y l\u00e0m t\u0103ng l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n trong s\u1ea3n ph\u1ea9m, gi\u00fap gi\u1ea3m hi\u1ec7u qu\u1ea3 t\u1ed5ng chi ph\u00ed.<\/p>\n

<\/p>\n

8. \u1ee8ng d\u1ee5ng c\u1ee7a Wollastonite trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

<\/p>\n

Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a wollastonite l\u00e0 canxi silicat, c\u00f3 m\u1eadt \u0111\u1ed9 2,9 g\/cm\u00b3, chi\u1ebft su\u1ea5t 1,63 v\u00e0 t\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 d\u1ea7u l\u00e0 30-50%. N\u00f3 c\u00f3 c\u1ea5u tr\u00fac gi\u1ed1ng nh\u01b0 kim v\u00e0 \u0111\u1ed9 s\u00e1ng tuy\u1ec7t v\u1eddi.<\/p>\n

<\/p>\n

Trong s\u01a1n b\u1ed9t, b\u1ed9t wollastonite t\u1ef1 nhi\u00ean th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. N\u00f3 \u0111\u01b0\u1ee3c ch\u1ebf bi\u1ebfn t\u1eeb wollastonite t\u1ef1 nhi\u00ean v\u00e0 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ea5t m\u00e0u c\u01a1 th\u1ec3 c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n ch\u1ea5t m\u00e0u tr\u1eafng, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 ph\u1ee7 v\u00e0 gi\u1ea3m chi ph\u00ed c\u1ee7a l\u1edbp ph\u1ee7. Do c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u1ed1t, wollastonite th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n b\u1ed9t c\u00e1ch \u0111i\u1ec7n epoxy. Ngo\u00e0i ra, c\u1ea5u tr\u00fac gi\u1ed1ng nh\u01b0 kim m\u00e0u tr\u1eafng c\u1ee7a wollastonite c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh u\u1ed1n v\u00e0 k\u00e9o c\u1ee7a s\u01a1n b\u1ed9t.<\/p>\n

<\/p>\n

III. Xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u1ee7a ch\u1ea5t \u0111\u1ed9n b\u1ed9t cho s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h2>\n

<\/p>\n

1. X\u1eed l\u00fd b\u1ec1 m\u1eb7t c\u1ee7a ch\u1ea5t \u0111\u1ed9n b\u1ed9t<\/h3>\n

<\/p>\n

T\u1ea5t c\u1ea3 c\u00e1c ch\u1ea5t \u0111\u1ed9n ph\u1ee7 b\u1ed9t \u0111\u1ec1u c\u00f3 t\u00ednh ph\u00e2n c\u1ef1c, trong khi nh\u1ef1a ph\u1ee7 b\u1ed9t c\u0169ng c\u00f3 t\u00ednh ph\u00e2n c\u1ef1c cao. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch k\u00e9m gi\u1eefa hai ch\u1ea5t n\u00e0y, \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn qu\u00e1 tr\u00ecnh x\u1eed l\u00fd v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a l\u1edbp ph\u1ee7. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, th\u01b0\u1eddng c\u1ea7n ph\u1ea3i x\u1eed l\u00fd ch\u1ea5t \u0111\u1ed9n b\u1ed9t th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd (nh\u01b0 ph\u1ee7 b\u1ec1 m\u1eb7t v\u00e0 h\u1ea5p ph\u1ee5) ho\u1eb7c c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc (nh\u01b0 thay th\u1ebf b\u1ec1 m\u1eb7t, th\u1ee7y ph\u00e2n, tr\u00f9ng h\u1ee3p v\u00e0 gh\u00e9p). C\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd n\u00e0y gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a c\u1ed1t li\u1ec7u ho\u1eb7c c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng, n\u00e2ng cao hi\u1ec7u su\u1ea5t x\u1eed l\u00fd, ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t (nh\u01b0 \u0111\u1ed9 b\u00f3ng v\u00e0 \u0111\u1ed9 s\u00e1ng m\u00e0u) v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a l\u1edbp ph\u1ee7.<\/p>\n

<\/p>\n

2. Vi h\u00f3a ch\u1ea5t \u0111\u1ed9n b\u1ed9t<\/h3>\n

<\/p>\n

Khi t\u1ef7 l\u1ec7 nh\u1ef1a ph\u1ee7 b\u1ed9t v\u00e0 ch\u1ea5t \u0111\u1ed9n kh\u00f4ng \u0111\u1ed5i, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a ch\u1ea5t \u0111\u1ed9n c\u00e0ng nh\u1ecf th\u00ec hi\u1ec7u su\u1ea5t b\u1ec1 m\u1eb7t v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a l\u1edbp ph\u1ee7 c\u00e0ng t\u1ed1t. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t ch\u1ea5t \u0111\u1ed9n gi\u1ea3m xu\u1ed1ng ph\u1ea1m vi t\u01b0\u01a1ng t\u1ef1 nh\u01b0 titan dioxit (0,2-0,5 \u03bcm), c\u00e1c ch\u1ea5t k\u1ebft t\u1ee5 trong c\u00f4ng th\u1ee9c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp, t\u1ea1o ra c\u00e1c trung t\u00e2m ph\u00e2n t\u00e1n hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng che ph\u1ee7 c\u1ee7a titan dioxit. \u0110\u00e2y l\u00e0 nguy\u00ean l\u00fd ph\u00e2n t\u00e1ch kh\u00f4ng gian c\u1ee7a ch\u1ea5t \u0111\u1ed9n si\u00eau m\u1ecbn. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, ch\u1ea5t \u0111\u1ed9n si\u00eau m\u1ecbn c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng s\u1eafc t\u1ed1 c\u1ea7n thi\u1ebft, do \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3.<\/p>\n

<\/p>\n

3. C\u00f4ng ngh\u1ec7 nano b\u1ed9t \u0111\u1ed9n<\/h3>\n

<\/p>\n

C\u00e1c v\u1eadt li\u1ec7u nano th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m nano-silicon dioxide, nano-titanium dioxide v\u00e0 nano-calcium carbonate. C\u00e1c b\u00e1o c\u00e1o ch\u1ec9 ra r\u1eb1ng nano-titanium dioxide l\u00e0m t\u0103ng \u0111\u1ed9 trong su\u1ed1t, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 tia c\u1ef1c t\u00edm c\u1ee7a l\u1edbp ph\u1ee7. N\u00f3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong vecni \u00f4 t\u00f4, n\u01a1i n\u00f3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft c\u1ee7a l\u1edbp ph\u1ee7 b\u1ed9t. Tuy nhi\u00ean, v\u00ec v\u1eadt li\u1ec7u nano l\u00e0 c\u00e1c h\u1ea1t c\u1ef1c k\u1ef3 m\u1ecbn c\u00f3 ho\u1ea1t t\u00ednh b\u1ec1 m\u1eb7t cao n\u00ean ch\u00fang d\u1ec5 b\u1ecb k\u1ebft t\u1ee5 v\u00e0 k\u1ebft b\u00f4ng. Do \u0111\u00f3, x\u1eed l\u00fd b\u1ec1 m\u1eb7t c\u1ee7a ch\u1ea5t \u0111\u1ed9n nano, c\u00f9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p b\u1ed5 sung th\u00edch h\u1ee3p, thi\u1ebft b\u1ecb ph\u00e2n t\u00e1n v\u00e0 s\u1ed1 l\u01b0\u1ee3ng t\u1ed1i \u01b0u, l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u1ee9ng d\u1ee5ng th\u00e0nh c\u00f4ng c\u1ee7a ch\u00fang trong l\u1edbp ph\u1ee7 b\u1ed9t. Khi thi\u1ebft k\u1ebf c\u00e1c c\u00f4ng th\u1ee9c s\u01a1n b\u1ed9t, n\u00ean l\u1ef1a ch\u1ecdn c\u00e1c ch\u1ea5t \u0111\u1ed9n kh\u00e1c nhau d\u1ef1a tr\u00ean c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t s\u1ea3n ph\u1ea9m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/p>\n

<\/p>\n

4. Ch\u1ee9c n\u0103ng h\u00f3a ch\u1ea5t \u0111\u1ed9n s\u01a1n t\u0129nh \u0111i\u1ec7n<\/h3>\n

<\/p>\n

Xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n cho l\u1edbp ph\u1ee7 b\u1ed9t ch\u1ee9c n\u0103ng t\u1eadp trung v\u00e0o vi\u1ec7c c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, h\u00f3a h\u1ecdc v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a l\u1edbp ph\u1ee7 trong c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 ho\u1eb7c \u0111\u01b0a ra c\u00e1c ch\u1ee9c n\u0103ng m\u1edbi. V\u00ed d\u1ee5, b\u1ed9t kaolin v\u00e0 wollastonite \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra l\u1edbp ph\u1ee7 b\u1ed9t c\u00e1ch \u0111i\u1ec7n, gi\u00fap gi\u1ea3m chi ph\u00ed \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. Nh\u00f4m hydroxit v\u00e0 magi\u00ea hydroxit c\u00f3 \u0111\u1eb7c t\u00ednh ch\u1ed1ng ch\u00e1y v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t l\u1edbp ph\u1ee7 b\u1ed9t ch\u1ed1ng ch\u00e1y. C\u00e1c ch\u1ea5t \u0111\u1ed9n n\u00e0y c\u0169ng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t l\u01b0u bi\u1ebfn, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00e1m d\u00ednh, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 b\u00f3ng v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng che ph\u1ee7. Do \u0111\u00f3, tr\u1ecdng t\u00e2m c\u1ee7a ch\u1ea5t \u0111\u1ed9n trong l\u1edbp ph\u1ee7 b\u1ed9t \u0111ang chuy\u1ec3n t\u1eeb vi\u1ec7c ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 gi\u1ea3m chi ph\u00ed sang k\u1ebft h\u1ee3p nhi\u1ec1u nghi\u00ean c\u1ee9u ch\u1ee9c n\u0103ng h\u01a1n, ph\u00e1t tri\u1ec3n c\u00e1c ch\u1ea5t \u0111\u1ed9n m\u1edbi c\u00f3 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi v\u1edbi chi ph\u00ed th\u1ea5p \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng thay \u0111\u1ed5i c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n b\u1ed9t.<\/p>\n

<\/p>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n

<\/p>\n

S\u1ef1 t\u0103ng tr\u01b0\u1edfng c\u1ee7a b\u1ed9t<\/a> th\u1ecb tr\u01b0\u1eddng s\u01a1n ph\u1ee7 ph\u1ea3n \u00e1nh s\u1ef1 chuy\u1ec3n d\u1ecbch r\u1ed9ng h\u01a1n sang c\u00e1c gi\u1ea3i ph\u00e1p s\u01a1n ph\u1ee7 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 hi\u1ec7u su\u1ea5t cao. Khi c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p ph\u1ea5n \u0111\u1ea5u h\u01b0\u1edbng \u0111\u1ebfn t\u00ednh b\u1ec1n v\u1eefng, s\u01a1n ph\u1ee7 b\u1ed9t cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf h\u1ea5p d\u1eabn v\u1edbi nh\u1eefng l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3 v\u1ec1 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng, hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed v\u00e0 t\u00e1c \u0111\u1ed9ng sinh th\u00e1i. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n li\u00ean t\u1ee5c c\u1ee7a c\u00e1c ch\u1ea5t \u0111\u1ed9n b\u1ed9t v\u00e0 c\u00f4ng ngh\u1ec7 s\u01a1n ph\u1ee7 ti\u00ean ti\u1ebfn, t\u01b0\u01a1ng lai c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p n\u00e0y c\u00f3 v\u1ebb \u0111\u1ea7y h\u1ee9a h\u1eb9n.<\/p>\n

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G\u1eedi tin nh\u1eafn cho ch\u00fang t\u00f4i<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    <\/span>\n\t\t<\/p>\n\t<\/div>\n\t

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