{"id":133013,"date":"2024-07-17T14:45:23","date_gmt":"2024-07-17T06:45:23","guid":{"rendered":"https:\/\/www.alpapowder.com\/133013\/"},"modified":"2024-07-17T14:45:24","modified_gmt":"2024-07-17T06:45:24","slug":"vai-tro-cua-bari-sunfat-bot-mica-va-cao-lanh-trong-son-tinh-dien","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/133013\/","title":{"rendered":"Vai tr\u00f2 c\u1ee7a bari sunfat, b\u1ed9t mica v\u00e0 cao lanh trong s\u01a1n t\u0129nh \u0111i\u1ec7n"},"content":{"rendered":"

\"\"<\/p>\n

Ch\u1ea5t \u0111\u1ed9n trong s\u01a1n t\u0129nh \u0111i\u1ec7n kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 gi\u1ea3m chi ph\u00ed m\u00e0 c\u00f2n \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m s\u01a1n. Ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ed1ng tr\u1ea7y x\u01b0\u1edbc c\u1ee7a l\u1edbp ph\u1ee7, gi\u1ea3m \u0111\u1ed9 v\u00f5ng c\u1ee7a l\u1edbp ph\u1ee7 trong qu\u00e1 tr\u00ecnh san b\u1eb1ng n\u00f3ng ch\u1ea3y, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u1ea9m.<\/p>\n

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 c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t. N\u00f3i chung, m\u1eadt \u0111\u1ed9 c\u00e0ng cao th\u00ec \u0111\u1ed9 che ph\u1ee7 c\u1ee7a l\u1edbp s\u01a1n t\u0129nh \u0111i\u1ec7n c\u00e0ng th\u1ea5p; s\u1ef1 ph\u00e2n t\u00e1n c\u1ee7a c\u00e1c h\u1ea1t l\u1edbn t\u1ed1t h\u01a1n c\u00e1c h\u1ea1t nh\u1ecf; ch\u1ea5t \u0111\u1ed9n tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc v\u00e0 c\u00f3 th\u1ec3 tr\u00e1nh ph\u1ea3n \u1ee9ng v\u1edbi m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n nh\u1ea5t \u0111\u1ecbnh c\u1ee7a c\u00f4ng th\u1ee9c b\u1ed9t nh\u01b0 ch\u1ea5t m\u00e0u; m\u00e0u c\u1ee7a ch\u1ea5t \u0111\u1ed9n ph\u1ea3i c\u00e0ng tr\u1eafng c\u00e0ng t\u1ed1t. C\u00e1c v\u1eadt li\u1ec7u b\u1ed9t \u0111\u1ed9n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n t\u0129nh \u0111i\u1ec7n ch\u1ee7 y\u1ebfu l\u00e0 canxi cacbonat, bari sunfat, b\u1ed9t talc, b\u1ed9t mica, cao lanh, silica<\/a>, wollastonite, v.v.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a bari sunfat trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/p>\n

Barium sulfate \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0u trong l\u1edbp ph\u1ee7 c\u00f3 hai lo\u1ea1i: t\u1ef1 nhi\u00ean v\u00e0 t\u1ed5ng h\u1ee3p. S\u1ea3n ph\u1ea9m t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9t barit v\u00e0 s\u1ea3n ph\u1ea9m t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bari sunfat k\u1ebft t\u1ee7a.<\/p>\n

Trong s\u01a1n t\u0129nh \u0111i\u1ec7n, bari sunfat k\u1ebft t\u1ee7a c\u00f3 th\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng gi\u1eef th\u0103ng b\u1eb1ng v\u00e0 \u0111\u1ed9 b\u00f3ng c\u1ee7a s\u01a1n t\u0129nh \u0111i\u1ec7n, \u0111\u1ed3ng th\u1eddi c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c s\u1eafc t\u1ed1. N\u00f3 c\u00f3 th\u1ec3 l\u00e0m cho l\u1edbp s\u01a1n t\u0129nh \u0111i\u1ec7n \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 l\u00fd t\u01b0\u1edfng v\u00e0 t\u1ed1c \u0111\u1ed9 ph\u1ee7 b\u1ed9t cao trong qu\u00e1 tr\u00ecnh phun.
\nCh\u1ea5t \u0111\u1ed9n 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\u1ea5p \u0111\u1ea7y cao v\u00e0 \u0111\u1ed9 tr\u01a1 h\u00f3a h\u1ecdc cao, \u0111\u1ed3ng th\u1eddi c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c l\u1edbp s\u01a1n ph\u1ee7 y\u00eau c\u1ea7u \u0111\u1ed9 b\u00f3ng cao h\u01a1n. Trong s\u01a1n latex, do ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 cao c\u1ee7a barit (1.637) n\u00ean b\u1ed9t barit m\u1ecbn c\u00f3 th\u1ec3 c\u00f3 ch\u1ee9c n\u0103ng t\u1ea1o ch\u1ea5t m\u00e0u tr\u1eafng m\u1edd v\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n titan dioxide trong l\u1edbp ph\u1ee7.
\nBari sulfat si\u00eau m\u1ecbn c\u00f3 \u0111\u1eb7c t\u00ednh l\u00e0 l\u01b0\u1ee3ng l\u1ea5p \u0111\u1ea7y l\u1edbn, \u0111\u1ed9 s\u00e1ng t\u1ed1t, \u0111\u1ed9 c\u00e2n b\u1eb1ng t\u1ed1t, kh\u1ea3 n\u0103ng gi\u1eef \u0111\u1ed9 b\u00f3ng m\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c s\u1eafc t\u1ed1. N\u00f3 l\u00e0 ch\u1ea5t \u0111\u1ed9n l\u00fd t\u01b0\u1edfng nh\u1ea5t cho s\u01a1n t\u0129nh \u0111i\u1ec7n.<\/p>\n

\u1ee8ng d\u1ee5ng b\u1ed9t mica trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/p>\n

B\u1ed9t mica l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n silicat ph\u1ee9c t\u1ea1p, c\u00e1c h\u1ea1t c\u00f3 v\u1ea3y, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, kh\u00e1ng axit v\u00e0 ki\u1ec1m r\u1ea5t t\u1ed1t v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh 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 c\u00e1c lo\u1ea1i s\u01a1n b\u1ed9t ch\u1ecbu nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n cho b\u1ed9t k\u1ebft c\u1ea5u.<\/p>\n

\u1ee8ng d\u1ee5ng cao lanh trong s\u01a1n t\u0129nh \u0111i\u1ec7n<\/p>\n

Cao lanh c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t thixotropy v\u00e0 ch\u1ed1ng l\u1eafng \u0111\u1ecdng. \u0110\u1ea5t s\u00e9t nung kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1eb7c t\u00ednh l\u01b0u bi\u1ebfn nh\u01b0ng c\u00f3 th\u1ec3 c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m m\u1edd, t\u0103ng kh\u1ea3 n\u0103ng che ph\u1ee7 v\u00e0 t\u0103ng \u0111\u1ed9 tr\u1eafng nh\u01b0 \u0111\u1ea5t s\u00e9t ch\u01b0a qua x\u1eed l\u00fd, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u1ed9t talc.<\/p>\n

Cao lanh th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc cao v\u00e0 kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh thixotropy c\u1ee7a l\u1edbp ph\u1ee7 v\u00e0 chu\u1ea9n b\u1ecb l\u1edbp ph\u1ee7 k\u1ef5 n\u01b0\u1edbc. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a s\u1ea3n ph\u1ea9m cao lanh n\u1eb1m trong kho\u1ea3ng t\u1eeb 0,2 \u0111\u1ebfn 1 \u03bcm. Cao lanh c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn c\u00f3 kh\u1ea3 n\u0103ng h\u00fat n\u01b0\u1edbc th\u1ea5p v\u00e0 c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m m\u1edd t\u1ed1t. Cao lanh c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf (nh\u1ecf h\u01a1n 1\u00b5m) c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m l\u1edbp ph\u1ee7 b\u00e1n b\u00f3ng v\u00e0 l\u1edbp ph\u1ee7 n\u1ed9i th\u1ea5t.<\/p>\n

Cao lanh c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nh\u00f4m silicat ng\u1eadm n\u01b0\u1edbc. Theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf bi\u1ebfn kh\u00e1c nhau, cao lanh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh cao lanh nung v\u00e0 cao lanh r\u1eeda s\u1ea1ch. N\u00f3i chung, \u0111\u1ed9 h\u1ea5p th\u1ee5 d\u1ea7u, \u0111\u1ed9 \u0111\u1ee5c, \u0111\u1ed9 x\u1ed1p, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 tr\u1eafng c\u1ee7a cao lanh nung cao h\u01a1n cao lanh \u0111\u00e3 r\u1eeda, nh\u01b0ng gi\u00e1 c\u0169ng cao h\u01a1n so v\u1edbi cao lanh \u0111\u00e3 r\u1eeda.<\/p>\n","protected":false},"excerpt":{"rendered":"

Barium sulfate \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0u trong l\u1edbp ph\u1ee7 c\u00f3 hai lo\u1ea1i: t\u1ef1 nhi\u00ean v\u00e0 t\u1ed5ng h\u1ee3p. S\u1ea3n ph\u1ea9m t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9t barit v\u00e0 s\u1ea3n ph\u1ea9m t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bari sunfat k\u1ebft t\u1ee7a.<\/p>\n","protected":false},"author":7,"featured_media":132973,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-133013","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/133013"}],"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=133013"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/133013\/revisions"}],"predecessor-version":[{"id":133014,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/133013\/revisions\/133014"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/132973"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=133013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=133013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=133013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}