{"id":136105,"date":"2025-07-14T10:49:00","date_gmt":"2025-07-14T02:49:00","guid":{"rendered":"https:\/\/www.alpapowder.com\/136105\/"},"modified":"2025-07-14T10:49:00","modified_gmt":"2025-07-14T02:49:00","slug":"cai-tien-lam-cho-nano-alumina-hoan-hao-hon","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/136105\/","title":{"rendered":"C\u1ea3i ti\u1ebfn – l\u00e0m cho nano-alumina ho\u00e0n h\u1ea3o h\u01a1n"},"content":{"rendered":"

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Nano-alumina l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u v\u00f4 c\u01a1 m\u1ecbn m\u1edbi c\u00f3 ch\u1ee9c n\u0103ng cao. K\u1ec3 t\u1eeb khi b\u1ed9t nano-alumina \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u00e0o gi\u1eefa nh\u1eefng n\u0103m 1980, con ng\u01b0\u1eddi \u0111\u00e3 ng\u00e0y c\u00e0ng hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 lo\u1ea1i v\u1eadt li\u1ec7u c\u00f4ng ngh\u1ec7 cao n\u00e0y v\u00e0 \u0111\u00e3 kh\u00e1m ph\u00e1 ra nhi\u1ec1u \u0111\u1eb7c t\u00ednh tuy\u1ec7t v\u1eddi c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 c\u1ee9ng cao, \u0111\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i kh\u00e1c. Do \u0111\u00f3, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, qu\u1ed1c ph\u00f2ng, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, vi \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n

Trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a nano-alumina, vi\u1ec7c bi\u1ebfn t\u00ednh b\u1ed9t lu\u00f4n l\u00e0 m\u1ed9t c\u00f4ng vi\u1ec7c r\u1ea5t quan tr\u1ecdng.<\/p>\n

T\u1ea1i sao ph\u1ea3i bi\u1ebfn t\u00ednh?<\/p>\n

Tr\u01b0\u1edbc h\u1ebft, l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u nano v\u1edbi nhi\u1ec1u \u0111\u1eb7c t\u00ednh, nano-alumina r\u1ea5t d\u1ec5 k\u1ebft t\u1ee5 do k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ef1c nh\u1ecf v\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t l\u1edbn. N\u1ebfu hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft t\u1ee5 \u0111\u1eb7c bi\u1ec7t nghi\u00eam tr\u1ecdng, n\u00f3 s\u1ebd \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u nano-alumina.<\/p>\n

Ngo\u00e0i ra, nano-alumina c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m m\u00e0ng sinh h\u1ecdc cho nghi\u00ean c\u1ee9u y h\u1ecdc v\u1ec1 thu\u1ed1c sinh h\u1ecdc, nh\u01b0ng \u0111i\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u1ee7a tinh th\u1ec3 v\u1edbi \u0111i\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u00e2n b\u1eb1ng ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ec1u do s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c khuy\u1ebft t\u1eadt m\u1ea1ng tinh th\u1ec3. S\u1ef1 t\u00edch t\u1ee5 c\u1ee7a c\u00e1c khuy\u1ebft t\u1eadt \u0111i\u1ec7n t\u00edch b\u1ec1 m\u1eb7t v\u00e0 di\u1ec7n t\u00edch \u0111i\u1ec7n t\u00edch kh\u00f4ng gian \u1edf c\u1ea5p \u0111\u1ed9 micron d\u1eabn \u0111\u1ebfn m\u00f4men l\u01b0\u1ee1ng c\u1ef1c d\u1ea1ng l\u01b0\u1edbi. Khi v\u1eadt li\u1ec7u sinh h\u1ecdc ti\u1ebfp x\u00fac v\u1edbi b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c lo\u1ea1i b\u1ed9t n\u00e0y, qu\u00e1 tr\u00ecnh l\u00e0m gi\u00e0u s\u1ebd x\u1ea3y ra, d\u1eabn \u0111\u1ebfn t\u1eafc ngh\u1ebdn l\u1ed7 r\u1ed7ng v\u00e0 \u00f4 nhi\u1ec5m m\u00e0ng.<\/p>\n

H\u01a1n n\u1eefa, t\u00ednh c\u00e1ch \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 b\u1ec1n cao c\u1ee7a alumina \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n trong c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 l\u1edbp ph\u1ee7 v\u00e0 cao su \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n, \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u. Tuy nhi\u00ean, alumina l\u00e0 m\u1ed9t ch\u1ea5t ph\u00e2n c\u1ef1c v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch k\u00e9m v\u1edbi c\u00e1c v\u1eadt li\u1ec7u polymer kh\u00f4ng ph\u00e2n c\u1ef1c.<\/p>\n

Do \u0111\u00f3, vi\u1ec7c bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t c\u1ee7a alumina \u0111\u00e3 thu h\u00fat nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd.<\/p>\n

Bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t \u0111\u1ec1 c\u1eadp \u0111\u1ebfn vi\u1ec7c x\u1eed l\u00fd b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t r\u1eafn b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc, t\u1ee9c l\u00e0 qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i c\u00f3 ch\u1ee7 \u0111\u00edch c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, h\u00f3a h\u1ecdc v\u00e0 h\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t c\u1ee7a b\u1ec1 m\u1eb7t h\u1ea1t theo nhu c\u1ea7u \u1ee9ng d\u1ee5ng. Hi\u1ec7n nay, c\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh th\u1ef1c t\u1ebf nh\u1ea5t. Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ebfn t\u00ednh h\u1eefu c\u01a1 b\u1ec1 m\u1eb7t v\u00ec n\u00f3 ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t bi\u1ebfn t\u00ednh h\u1eefu c\u01a1, v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1ee9 hai l\u00e0 bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 v\u00f4 c\u01a1 ho\u1eb7c bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t.<\/p>\n

Bi\u1ebfn t\u00ednh h\u1eefu c\u01a1 b\u1ec1 m\u1eb7t<\/p>\n

M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c bi\u1ebfn t\u00ednh h\u1eefu c\u01a1 b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t b\u1ed9t si\u00eau m\u1ecbn l\u00e0 l\u00e0m cho b\u1ec1 m\u1eb7t h\u1ea1t tr\u1edf n\u00ean k\u1ef5 n\u01b0\u1edbc b\u1eb1ng c\u00e1ch li\u00ean k\u1ebft c\u00e1c nh\u00f3m h\u1eefu c\u01a1 t\u01b0\u01a1ng \u1ee9ng, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ph\u00e2n t\u00e1n v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch giao di\u1ec7n c\u1ee7a n\u00f3 trong c\u00e1c n\u1ec1n h\u1eefu c\u01a1 nh\u01b0 nh\u1ef1a, cao su v\u00e0 s\u01a1n, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n quy tr\u00ecnh x\u1eed l\u00fd s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t t\u1ed5ng h\u1ee3p c\u1ee7a c\u01a1 h\u1ecdc v\u1eadt li\u1ec7u composite. Theo lo\u1ea1i c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc, ch\u1ea5t bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c chia th\u00e0nh axit b\u00e9o b\u1eadc cao ho\u1eb7c mu\u1ed1i c\u1ee7a ch\u00fang, axit b\u00e9o b\u1eadc th\u1ea5p v\u00e0 ch\u1ea5t li\u00ean k\u1ebft.<\/p>\n

(1) Bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 v\u1eadt l\u00fd<\/p>\n

Bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 v\u1eadt l\u00fd ho\u1eb7c bi\u1ebfn t\u00ednh x\u1eed l\u00fd l\u1edbp ph\u1ee7 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u h\u1eefu c\u01a1 (mi\u1ec5n l\u00e0 n\u00f3 l\u00e0 polyme, nh\u1ef1a, ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t, h\u1ee3p ch\u1ea5t polyme tan trong n\u01b0\u1edbc ho\u1eb7c tan trong d\u1ea7u v\u00e0 x\u00e0 ph\u00f2ng axit b\u00e9o, v.v.) \u0111\u1ec3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t h\u1ea1t nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch bi\u1ebfn t\u00ednh. \u0110\u00e2y l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t h\u1ea1t m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n.<\/p>\n

(2) Bi\u1ebfn t\u00ednh h\u00f3a h\u1ecdc b\u1ec1 m\u1eb7t<\/p>\n

Bi\u1ebfn t\u00ednh h\u00f3a h\u1ecdc b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc ho\u1eb7c h\u1ea5p ph\u1ee5 h\u00f3a h\u1ecdc gi\u1eefa ch\u1ea5t bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t v\u00e0 b\u1ec1 m\u1eb7t h\u1ea1t. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong s\u1ea3n xu\u1ea5t.<\/p>\n

(3) Bi\u1ebfn t\u00ednh gh\u00e9p<\/p>\n

Bi\u1ebfn t\u00ednh gh\u00e9p l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh trong \u0111\u00f3 c\u00e1c monome olefin ho\u1eb7c polyolefin \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o b\u1ec1 m\u1eb7t b\u1ed9t d\u01b0\u1edbi m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n k\u00edch th\u00edch b\u00ean ngo\u00e0i nh\u1ea5t \u0111\u1ecbnh. \u0110\u00f4i khi, c\u1ea7n ph\u1ea3i k\u00edch th\u00edch monome olefin sau khi \u0111\u01b0a v\u00e0o \u0111\u1ec3 tr\u00f9ng h\u1ee3p monome olefin b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t.<\/p>\n

Bi\u1ebfn t\u00ednh ph\u1ee7 b\u1ec1 m\u1eb7t<\/p>\n

Bi\u1ebfn t\u00ednh ph\u1ee7 b\u1ec1 m\u1eb7t l\u00e0 c\u00f4ng ngh\u1ec7 bi\u1ebfn t\u00ednh b\u1eb1ng c\u00e1ch ph\u1ee7 \u0111\u1ed3ng \u0111\u1ec1u b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t b\u1ed9t nh\u00f4m si\u00eau m\u1ecbn b\u1eb1ng c\u00e1c h\u1ea1t r\u1eafn ho\u1eb7c m\u00e0ng r\u1eafn nh\u1ecf h\u01a1n, do \u0111\u00f3 thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n b\u1ec1 m\u1eb7t, c\u1ea5u tr\u00fac, h\u00ecnh d\u1ea1ng v\u00e0 ch\u1ee9c n\u0103ng ban \u0111\u1ea7u c\u1ee7a c\u00e1c h\u1ea1t.<\/p>\n

T\u00f9y thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng v\u00e0 h\u00ecnh th\u1ee9c ph\u1ea3n \u1ee9ng ph\u1ee7, b\u1ea3n ch\u1ea5t v\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 gi\u1eefa c\u00e1c h\u1ea1t, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a h\u00f3a h\u1ecdc, ph\u01b0\u01a1ng ph\u00e1p ph\u1ee7 th\u1ee7y ph\u00e2n, ph\u01b0\u01a1ng ph\u00e1p sol-gel, ph\u01b0\u01a1ng ph\u00e1p bay h\u01a1i dung m\u00f4i, ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u00f3a h\u1ecdc v\u00e0 ph\u01b0\u01a1ng ph\u00e1p pha kh\u00ed. Trong \u0111\u00f3, ba ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea7u \u0111\u1ec1u l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u1ea3n \u1ee9ng dung d\u1ecbch, t\u1ee9c l\u00e0 dung d\u1ecbch mu\u1ed1i h\u00f2a tan \u0111\u01b0\u1ee3c k\u1ebft t\u1ee7a b\u1eb1ng t\u00e1c nh\u00e2n k\u1ebft t\u1ee7a v\u00e0 th\u1ee7y ph\u00e2n, sau \u0111\u00f3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t b\u1ed9t h\u1ea1t c\u1ea7n bi\u1ebfn t\u00ednh.<\/p>\n","protected":false},"excerpt":{"rendered":"

S\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u00f3a h\u1ecdc b\u1ec1 m\u1eb7t \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc ho\u1eb7c s\u1ef1 h\u1ea5p ph\u1ee5 h\u00f3a h\u1ecdc gi\u1eefa ch\u1ea5t bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t v\u00e0 b\u1ec1 m\u1eb7t h\u1ea1t.<\/p>\n","protected":false},"author":7,"featured_media":136080,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-136105","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\/136105","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=136105"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136105\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/136080"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=136105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=136105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=136105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}