{"id":121941,"date":"2022-11-28T10:08:23","date_gmt":"2022-11-28T02:08:23","guid":{"rendered":"https:\/\/www.alpapowder.com\/121941\/"},"modified":"2022-11-28T10:08:23","modified_gmt":"2022-11-28T02:08:23","slug":"bot-talc-chat-tao-hat-vo-co-duoc-su-dung-pho-bien-nhat-cho-axit-polylactic","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/121941\/","title":{"rendered":"B\u1ed9t Talc – ch\u1ea5t t\u1ea1o h\u1ea1t v\u00f4 c\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t cho axit polylactic"},"content":{"rendered":"

\"\"<\/p>\n

Axit polylactic l\u00e0 m\u1ed9t polyme cao ph\u00e2n t\u1eed thu \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean t\u00e1i t\u1ea1o th\u00f4ng qua chi\u1ebft xu\u1ea5t, tr\u00f9ng h\u1ee3p h\u00f3a h\u1ecdc v\u00e0 c\u00e1c qu\u00e1 tr\u00ecnh kh\u00e1c. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n h\u1ee7y sinh h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc. B\u1ecb ph\u00e2n h\u1ee7y ho\u00e0n to\u00e0n th\u00e0nh kh\u00ed cacbonic v\u00e0 n\u01b0\u1edbc. Vi\u1ec7c s\u1eed d\u1ee5ng v\u00e0 th\u00fac \u0111\u1ea9y axit polylactic c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m m\u1ee9c ti\u00eau th\u1ee5 t\u00e0i nguy\u00ean d\u1ea7u m\u1ecf v\u00e0 \u0111\u00f3ng vai tr\u00f2 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m ph\u00e1t th\u1ea3i, \u0111i\u1ec1u n\u00e0y c\u00f3 \u00fd ngh\u0129a to l\u1edbn \u0111\u1ed1i v\u1edbi vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

Axit polylactic c\u00f3 \u0111\u1ed9 b\u1ec1n cao, m\u00f4 \u0111un cao, \u0111\u1ed9 trong su\u1ed1t v\u00e0 \u0111\u1ed9 tho\u00e1ng kh\u00ed t\u1ed1t, nh\u01b0ng t\u1ed1c \u0111\u1ed9 k\u1ebft tinh c\u1ee7a n\u00f3 qu\u00e1 ch\u1eadm trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd, d\u1eabn \u0111\u1ebfn chu k\u1ef3 x\u1eed l\u00fd k\u00e9o d\u00e0i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t k\u00e9m, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf r\u1ea5t nhi\u1ec1u l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m axit polylactic.<\/p>\n

Hi\u1ec7n t\u1ea1i, c\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a axit polylactic l\u00e0 th\u00eam ch\u1ea5t t\u1ea1o h\u1ea1t nh\u00e2n. Trong c\u00e1c \u1ee9ng d\u1ee5ng x\u1eed l\u00fd doanh nghi\u1ec7p th\u1ef1c t\u1ebf, b\u1ed9t talc l\u00e0 ch\u1ea5t t\u1ea1o h\u1ea1t v\u00f4 c\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t cho axit polylactic, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng k\u00e9o d\u00e0i, u\u1ed1n cong, v.v. c\u1ee7a axit polylactic. T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a n\u00f3.<\/p>\n

B\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c h\u00e0m l\u01b0\u1ee3ng b\u1ed9t talc kh\u00e1c nhau \u0111\u1ebfn t\u00ednh ch\u1ea5t k\u1ebft tinh v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc to\u00e0n di\u1ec7n c\u1ee7a axit polylactic tinh khi\u1ebft c\u00f3 \u0111\u1ed9 b\u00f3ng cao, k\u1ebft qu\u1ea3 cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i k\u1ebft tinh c\u1ee7a axit polylactic t\u0103ng khi h\u00e0m l\u01b0\u1ee3ng b\u1ed9t talc t\u0103ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 k\u1ebft tinh v\u00f9ng ti\u1ebfp t\u1ee5c di chuy\u1ec3n theo h\u01b0\u1edbng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 t\u1ed1c \u0111\u1ed9 k\u1ebft tinh N\u00f3 c\u0169ng t\u0103ng t\u1ed1c.<\/p>\n

So v\u1edbi axit polylactic tinh khi\u1ebft, khi t\u1ef7 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a b\u1ed9t talc l\u00e0 10%, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc to\u00e0n di\u1ec7n c\u1ee7a axit polylactic \u0111\u1ea1t m\u1ee9c t\u1ed1i \u0111a, nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i k\u1ebft tinh c\u1ee7a n\u00f3 t\u0103ng 13,7K, \u0111\u1ed9 b\u1ec1n k\u00e9o t\u0103ng t\u1eeb 58,6MPa l\u00ean 72,0MPa v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o t\u0103ng t\u1eeb 58,6MPa l\u00ean 72,0MPa. \u0111\u1ed9 b\u1ec1n k\u00e9o khi \u0111\u1ee9t \u0110\u1ed9 c\u0103ng t\u0103ng t\u1eeb 2,7% l\u00ean 4,6%, \u0111\u1ed9 b\u1ec1n u\u1ed1n t\u0103ng t\u1eeb 88,9MPa l\u00ean 104,0MPa v\u00e0 m\u00f4 \u0111un u\u1ed1n t\u0103ng t\u1eeb 3589MPa l\u00ean 4837MPa. \u0110\u1ed3ng th\u1eddi, vi\u1ec7c b\u1ed5 sung b\u1ed9t tan s\u1ebd kh\u00f4ng l\u00e0m thay \u0111\u1ed5i d\u1ea1ng tinh th\u1ec3 axit polylactic, nh\u01b0ng s\u1ebd l\u00e0m cho k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c h\u00ecnh c\u1ea7u axit polylactic nh\u1ecf h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00e0 m\u1eadt \u0111\u1ed9 nh\u00e2n tinh th\u1ec3 s\u1ebd t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n","protected":false},"excerpt":{"rendered":"

Axit polylactic l\u00e0 m\u1ed9t polyme cao ph\u00e2n t\u1eed thu \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean t\u00e1i t\u1ea1o th\u00f4ng qua chi\u1ebft xu\u1ea5t, tr\u00f9ng h\u1ee3p h\u00f3a h\u1ecdc v\u00e0 c\u00e1c qu\u00e1 tr\u00ecnh kh\u00e1c<\/p>\n","protected":false},"author":7,"featured_media":121906,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-121941","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\/121941","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=121941"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/121941\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/121906"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=121941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=121941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=121941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}