{"id":136076,"date":"2025-07-08T15:05:14","date_gmt":"2025-07-08T07:05:14","guid":{"rendered":"https:\/\/www.alpapowder.com\/136076\/"},"modified":"2025-07-08T15:05:14","modified_gmt":"2025-07-08T07:05:14","slug":"nhung-loi-ich-cua-viec-su-dung-chat-don-bari-sunfat-tuyet-voi-trong-qua-trinh-cai-tien-nylon-la-gi","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/136076\/","title":{"rendered":"Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ea5t \u0111\u1ed9n bari sunfat tuy\u1ec7t v\u1eddi trong qu\u00e1 tr\u00ecnh c\u1ea3i ti\u1ebfn nylon l\u00e0 g\u00ec?"},"content":{"rendered":"

\"\"<\/p>\n

Bari sunfat, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 barit, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i, kh\u00f4ng \u0111\u1ed9c h\u1ea1i v\u1edbi c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc BaSO4. N\u00f3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi m\u1eadt \u0111\u1ed9 cao, \u0111\u1ed9 tr\u1eafng cao, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng axit v\u00e0 ki\u1ec1m, v\u00e0 kh\u00f4ng tan trong n\u01b0\u1edbc v\u00e0 h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i axit. Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y l\u00e0m cho bari sunfat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c bi\u1ebfn t\u00ednh nh\u1ef1a, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong bi\u1ebfn t\u00ednh nylon (PA), n\u01a1i bari sunfat cho th\u1ea5y nh\u1eefng l\u1ee3i th\u1ebf \u0111\u1ed9c \u0111\u00e1o.<\/p>\n

Nylon, l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u polyme c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng axit v\u00e0 ki\u1ec1m v\u00e0 t\u1ef1 b\u00f4i tr\u01a1n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p. Tuy nhi\u00ean, nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a nylon nh\u01b0 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc cao v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc k\u00e9m h\u1ea1n ch\u1ebf ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3. Do \u0111\u00f3, vi\u1ec7c bi\u1ebfn t\u00ednh nylon \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 l\u00e0 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng. L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n trung t\u00ednh, bari sunfat \u0111\u00f3ng nhi\u1ec1u vai tr\u00f2 trong qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh nylon, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u0103ng c\u01b0\u1eddng, l\u00e0m c\u1ee9ng v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng.<\/p>\n

Hi\u1ec7u \u1ee9ng gia c\u01b0\u1eddng<\/p>\n

L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1, vi\u1ec7c b\u1ed5 sung bari sunfat c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 c\u1ee9ng (m\u00f4 \u0111un) v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a nylon, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi m\u00f4 \u0111un cao (nh\u01b0 b\u00e1nh r\u0103ng v\u00e0 \u1ed5 tr\u1ee5c). C\u00e1c k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m c\u00f3 li\u00ean quan cho th\u1ea5y khi t\u0103ng h\u00e0m l\u01b0\u1ee3ng nano-bari sunfat, m\u00f4 \u0111un u\u1ed1n v\u00e0 m\u00f4 \u0111un k\u00e9o c\u1ee7a nylon \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. \u0110\u1eb7c bi\u1ec7t, khi ph\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nano-bari sunfat \u0111\u1ea1t m\u1ed9t gi\u00e1 tr\u1ecb nh\u1ea5t \u0111\u1ecbnh (nh\u01b0 3%), c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a nylon \u0111\u1ea1t t\u1ed1t nh\u1ea5t. Hi\u1ec7u \u1ee9ng gia c\u01b0\u1eddng n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 do \u0111\u1ed9 c\u1ee9ng c\u1ee7a bari sunfat v\u00e0 li\u00ean k\u1ebft giao di\u1ec7n t\u1ed1t c\u1ee7a n\u00f3 v\u1edbi ma tr\u1eadn nylon.<\/p>\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc: gi\u1ea3m \u0111\u1ed9 co ng\u00f3t v\u00e0 cong v\u00eanh c\u1ee7a nylon trong qu\u00e1 tr\u00ecnh gia c\u00f4ng ho\u1eb7c s\u1eed d\u1ee5ng, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc.<\/p>\n

Nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t (HDT): b\u1eb1ng c\u00e1ch h\u1ea1n ch\u1ebf chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c chu\u1ed7i polyme, c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng c\u1ee7a nylon trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao (nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4).<\/p>\n

Hi\u1ec7u \u1ee9ng l\u00e0m c\u1ee9ng<\/p>\n

Ngo\u00e0i hi\u1ec7u \u1ee9ng gia c\u01b0\u1eddng, bari sunfat c\u0169ng c\u00f3 th\u1ec3 c\u00f3 hi\u1ec7u \u1ee9ng l\u00e0m c\u1ee9ng \u0111\u1ed1i v\u1edbi nylon. S\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c h\u1ea1t nano-bari sunfat v\u00e0 ma tr\u1eadn nylon t\u1ea1o th\u00e0nh l\u1edbp chuy\u1ec3n ti\u1ebfp \u0111\u00e0n h\u1ed3i, c\u00f3 th\u1ec3 truy\u1ec1n v\u00e0 l\u00e0m gi\u00e3n \u1ee9ng su\u1ea5t tr\u00ean giao di\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, do \u0111\u00f3 h\u1ea5p th\u1ee5 v\u00e0 ph\u00e2n t\u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1c \u0111\u1ed9ng b\u00ean ngo\u00e0i v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai c\u1ee7a v\u1eadt li\u1ec7u. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng khi h\u00e0m l\u01b0\u1ee3ng bari sunfat t\u0103ng \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u s\u1ebd gi\u1ea3m do x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft t\u1ee5.<\/p>\n

\u0110\u1ed9 b\u00f3ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n<\/p>\n

Bari sunfat c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng m\u1ea1nh trong ph\u1ea1m vi b\u01b0\u1edbc s\u00f3ng c\u1ef1c t\u00edm v\u00e0 h\u1ed3ng ngo\u1ea1i, cho ph\u00e9p n\u00f3 th\u1ec3 hi\u1ec7n \u0111\u1ed9 s\u00e1ng cao trong c\u00e1c c\u00f4ng th\u1ee9c t\u1ea1o m\u00e0u nh\u1ef1a. Khi bari sunfat c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t th\u00edch h\u1ee3p \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y nylon, \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c x\u1eed l\u00fd c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3. Ngo\u00e0i ra, chi\u1ebft su\u1ea5t c\u1ee7a bari sunfat t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c polyme nh\u01b0 nylon, do \u0111\u00f3 n\u00f3 c\u00f3 th\u1ec3 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 s\u00e1ng v\u00e0 m\u00e0u s\u1eafc c\u1ee7a s\u1eafc t\u1ed1 t\u1ea1o m\u00e0u.<\/p>\n

\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/p>\n

Trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, bari sunfat th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n \u0111\u1ed3ng \u0111\u1ec1u v\u00e0o ma tr\u1eadn nylon d\u01b0\u1edbi d\u1ea1ng nanomet b\u1eb1ng c\u00e1ch pha tr\u1ed9n n\u00f3ng ch\u1ea3y. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng hi\u1ec7u \u1ee9ng k\u00edch th\u01b0\u1edbc, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn v\u00e0 l\u1ef1c giao di\u1ec7n m\u1ea1nh c\u1ee7a nano-bari sunfat, k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a bari sunfat v\u1edbi \u0111\u1ed9 dai, kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n m\u00f4i c\u1ee7a nylon, do \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t to\u00e0n di\u1ec7n tuy\u1ec7t v\u1eddi.<\/p>\n

Bari sunfat \u0111\u00e3 cho th\u1ea5y s\u1ef1 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 v\u1ec1 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 dai v\u00e0 \u0111\u1ed9 b\u00f3ng trong qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh nylon. B\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t h\u1ee3p l\u00fd h\u00e0m l\u01b0\u1ee3ng v\u00e0 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a bari sunfat, c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a nylon, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a s\u1ea3n ph\u1ea9m, c\u00e2n b\u1eb1ng hi\u1ec7u su\u1ea5t v\u00e0 chi ph\u00ed, t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf c\u00f4ng th\u1ee9c cho c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 v\u00e0 do \u0111\u00f3 m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a nylon.<\/p>\n","protected":false},"excerpt":{"rendered":"

Bari sunfat c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng m\u1ea1nh trong d\u1ea3i b\u01b0\u1edbc s\u00f3ng c\u1ef1c t\u00edm v\u00e0 h\u1ed3ng ngo\u1ea1i, gi\u00fap t\u1ea1o ra \u0111\u1ed9 s\u00e1ng cao trong c\u00e1c c\u00f4ng th\u1ee9c t\u1ea1o m\u00e0u nh\u1ef1a.<\/p>\n","protected":false},"author":7,"featured_media":136051,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-136076","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\/136076","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=136076"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136076\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/136051"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=136076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=136076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=136076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}