![\"ch\u1ea5t](\"http:\/\/defoamingagent.net\/wp-content\/uploads\/2025\/04\/defoaming-agent-1.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"S\u1ef1 h\u00ecnh th\u00e0nh b\u1ecdt trong m\u00e0ng s\u01a1n c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t nh\u01b0 v\u1ebft l\u1ed7 c\u00e1, v\u1ebft l\u00f5m ho\u1eb7c l\u1ed7 kim. \u0110\u1ec3 ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng n\u00e0y t\u00e1i di\u1ec5n, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng th\u1ee9c s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t ph\u1ee5 gia ch\u1ed1ng b\u1ecdt v\u00e0 ch\u1ea5t ph\u00e1 b\u1ecdt \u2013 tuy nhi\u00ean, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 \u0111\u00e1nh gi\u00e1 ch\u00fang \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean s\u00e2u v\u1ec1 c\u01a1 ch\u1ebf t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang trong c\u00e1c h\u1ec7 th\u1ed1ng s\u01a1n kh\u00e1c nhau.<\/p>\n
M\u1ed9t ch\u1ea5t kh\u1eed b\u1ecdt hi\u1ec7u qu\u1ea3 ph\u1ea3i h\u00f2a tan trong m\u00f4i tr\u01b0\u1eddng t\u1ea1o b\u1ecdt, th\u00e2m nh\u1eadp nhanh v\u00e0o c\u00e1c l\u1edbp b\u1ecdt v\u00e0 lan t\u1ecfa nhanh ch\u00f3ng d\u1ecdc theo giao di\u1ec7n kh\u00ed-l\u1ecfng.<\/p>\n
PDMS l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u kinh t\u1ebf, t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc v\u00e0 c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong l\u0129nh v\u1ef1c vi l\u01b0u ch\u1ea5t. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n polymer, k\u00ednh v\u00e0 kim lo\u1ea1i \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c thi\u1ebft b\u1ecb nh\u00fang; \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m m\u00e0ng b\u01a1m \u0111i\u1ec7n th\u1ea9m v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 t\u1ea1o h\u00ecnh b\u1eb1ng photoresist \u0111\u1ec3 h\u00ecnh th\u00e0nh c\u00e1c k\u00eanh vi l\u01b0u ch\u1ea5t.<\/p>\n
\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, PDMS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c oxy h\u00f3a b\u1eb1ng plasma oxy, t\u1ea1o ra c\u00e1c nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3, c\u00e1c nh\u00f3m n\u00e0y ph\u1ea3n \u1ee9ng v\u1edbi h\u01a1i silyl clorua \u0111\u1ec3 h\u00ecnh th\u00e0nh c\u00e1c nh\u00f3m cu\u1ed1i c\u00f9ng cho c\u00e1c ch\u1ea5t ch\u1ed1ng b\u1ecdt ph\u1ea3n \u1ee9ng. K\u1ebft qu\u1ea3 l\u00e0, c\u00e1c ch\u1ea5t ch\u1ed1ng b\u1ecdt ph\u1ea3n \u1ee9ng v\u1edbi b\u1ec1 m\u1eb7t n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng b\u1ecdt v\u00e0 \u1ee9c ch\u1ebf th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c ch\u1ea5t ph\u1ee5 gia ch\u1ed1ng b\u1ecdt silicone truy\u1ec1n th\u1ed1ng, \u0111\u1ed3ng th\u1eddi ch\u00fang kh\u00f4ng \u0111\u1ed9c h\u1ea1i, d\u1ec5 ph\u00e2n t\u00e1n v\u00e0 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t so v\u1edbi c\u00e1c \u0111\u1ed1i t\u00e1c silicone c\u1ee7a ch\u00fang.<\/p>\n
D\u1ea7u silicone d\u1ef1a v\u00e0o s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u1ef7 tr\u1ecdng gi\u1eefa d\u1ecbch th\u1ee7y tinh th\u1ec3 v\u00e0 d\u1ea7u silicone \u0111\u1ec3 t\u1ea1o ra c\u01a1 ch\u1ebf ch\u1ed1ng t\u1ea1o b\u1ecdt. T\u1ef7 tr\u1ecdng cao h\u01a1n c\u1ee7a d\u1ecbch th\u1ee7y tinh th\u1ec3 khi\u1ebfn n\u00f3 ch\u00ecm xu\u1ed1ng b\u00ean trong khoang th\u1ee7y tinh th\u1ec3, trong khi t\u1ef7 tr\u1ecdng th\u1ea5p h\u01a1n c\u1ee7a d\u1ea7u silicone khi\u1ebfn n\u00f3 n\u1ed5i l\u00ean, t\u1ea1o ra l\u1ef1c n\u1ed5i gi\u00fap n\u00f3 di chuy\u1ec3n l\u00ean tr\u00ean.<\/p>\n
D\u1ea7u silicone y t\u1ebf c\u00f3 th\u1ec3 l\u00e0 ch\u1ea5t ch\u1ed1ng t\u1ea1o b\u1ecdt hi\u1ec7u qu\u1ea3 do c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang nh\u1eb9 h\u01a1n n\u01b0\u1edbc v\u00e0 l\u00e0m thay \u0111\u1ed5i s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t, t\u1eeb \u0111\u00f3 khi\u1ebfn c\u00e1c b\u1ecdt b\u1ecdt v\u1ee1 ra. H\u01a1n n\u1eefa, ch\u00fang kh\u00f4ng \u0111\u1ed9c h\u1ea1i v\u00e0 d\u1ec5 h\u00f2a tan trong dung d\u1ecbch n\u01b0\u1edbc.<\/p>\n
C\u00e1c ch\u1ea5t ch\u1ed1ng t\u1ea1o b\u1ecdt d\u1ef1a tr\u00ean silicone y\u00eau c\u1ea7u n\u1ed3ng \u0111\u1ed9 cao c\u1ee7a silicone, c\u00f3 th\u1ec3 \u0111\u1ed9c h\u1ea1i v\u00e0 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi, trong khi c\u00e1c lo\u1ea1i d\u1ea7u th\u1ef1c v\u1eadt nh\u01b0 d\u1ea7u jojoba c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1ea1o b\u1ecdt t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng hi\u1ec7u qu\u1ea3 th\u1ea5p h\u01a1n nhi\u1ec1u; h\u01a1n n\u1eefa, h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc th\u1ea5p c\u1ee7a ch\u00fang khi\u1ebfn vi\u1ec7c ph\u00e2n t\u00e1n tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n d\u1ef1 ki\u1ebfn.<\/p>\n
D\u1ea7u kho\u00e1ng l\u00e0 h\u1ed7n h\u1ee3p kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i c\u1ee7a c\u00e1c hydrocacbon no cao c\u1ea5p \u0111\u01b0\u1ee3c chi\u1ebft xu\u1ea5t t\u1eeb c\u00e1c ngu\u1ed3n kho\u00e1ng s\u1ea3n, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t nh\u01b0 s\u1ea3n ph\u1ea9m ph\u1ee5 trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn d\u1ea7u th\u00f4 th\u00e0nh c\u00e1c s\u1ea3n ph\u1ea9m d\u1ea7u m\u1ecf. Trong l\u1ecbch s\u1eed, ch\u00fang c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u1ea7u tr\u1eafng ho\u1eb7c d\u1ea7u paraffin do t\u00ean g\u1ecdi c\u1ee7a ch\u00fang kh\u00f4ng ch\u00ednh x\u00e1c, ph\u1ea3n \u00e1nh r\u1eb1ng th\u01b0\u1eddng c\u00e1c th\u01b0\u01a1ng nh\u00e2n kh\u00f4ng c\u1ea7n ho\u1eb7c kh\u00f4ng mu\u1ed1n bi\u1ebft ch\u00ednh x\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a t\u1eebng lo\u1ea1i d\u1ea7u kho\u00e1ng \u0111\u01b0\u1ee3c b\u00e1n ho\u1eb7c s\u1eed d\u1ee5ng l\u00e0m h\u00e0ng h\u00f3a th\u01b0\u01a1ng m\u1ea1i (Merriam-Webster ghi nh\u1eadn l\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ea7u ti\u00ean c\u1ee7a thu\u1eadt ng\u1eef \u201cd\u1ea7u kho\u00e1ng\u201d v\u00e0o n\u0103m 1771!).<\/p>\n
D\u1ea7u kho\u00e1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tinh ch\u1ebf th\u00eam cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t ph\u1ee5 gia c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi, t\u1ea1o ra d\u1ea7u b\u00f4i tr\u01a1n kho\u00e1ng tinh ch\u1ebf ph\u00f9 h\u1ee3p cho c\u00e1c s\u1ea3n ph\u1ea9m th\u1ef1c ph\u1ea9m v\u00e0 d\u01b0\u1ee3c ph\u1ea9m c\u00f3 th\u1ec3 ti\u1ebfp x\u00fac v\u1edbi th\u1ef1c ph\u1ea9m, bao g\u1ed3m c\u1ea3 c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n v\u1ec1 ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m kh\u00f4ng mong mu\u1ed1n.<\/p>\n
D\u1ea7u kho\u00e1ng th\u1ef1c ph\u1ea9m l\u00e0 lo\u1ea1i d\u1ea7u kh\u00f4ng m\u00f9i, kh\u00f4ng v\u1ecb, h\u00f2a tan trong n\u01b0\u1edbc, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n xu\u1ea5t s\u1eafc, do \u0111\u00f3 an to\u00e0n khi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi da. Ngo\u00e0i ra, ch\u00fang gi\u00fap ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng m\u1ea5t n\u01b0\u1edbc b\u1eb1ng c\u00e1ch t\u1ea1o ra m\u1ed9t l\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 h\u1ea1n ch\u1ebf s\u1ef1 m\u1ea5t n\u01b0\u1edbc qua da.<\/p>\n
Ch\u1ea5t kh\u1eed b\u1ecdt h\u00f2a tan trong n\u01b0\u1edbc c\u00f3 kh\u1ea3 n\u0103ng kh\u1eed b\u1ecdt xu\u1ea5t s\u1eafc v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch tr\u1ed9n h\u1ee3p ch\u1ea5t silicone h\u1eefu c\u01a1 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i b\u1eb1ng polyether v\u1edbi c\u00e1c r\u01b0\u1ee3u b\u1eadc th\u1ea5p, ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t v\u00e0 silica. So v\u1edbi c\u00e1c lo\u1ea1i d\u1ea7u kho\u00e1ng truy\u1ec1n th\u1ed1ng, ch\u1ea5t kh\u1eed b\u1ecdt n\u00e0y c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 c\u00f3 th\u1ec3 ph\u00e2n t\u00e1n tr\u01b0\u1edbc v\u00e0 y\u00eau c\u1ea7u \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u0111\u1ec3 t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng s\u01a1n.<\/p>\n
Ch\u1ea5t kh\u1eed b\u1ecdt ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch duy tr\u00ec t\u00ednh kh\u00f4ng tan trong m\u00f4i tr\u01b0\u1eddng t\u1ea1o b\u1ecdt v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd gi\u1eefa c\u00e1c ph\u00e2n t\u1eed tr\u00ean b\u1ec1 m\u1eb7t m\u00e0ng, t\u1eeb \u0111\u00f3 ng\u0103n ch\u1eb7n c\u00e1c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t c\u00f3 kh\u1ea3 n\u0103ng \u1ed5n \u0111\u1ecbnh b\u1ecdt kh\u00f4i ph\u1ee5c \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a m\u00e0ng th\u00f4ng qua hi\u1ec7u \u1ee9ng Marangoni v\u00e0 do \u0111\u00f3 ng\u0103n ch\u1eb7n s\u1ef1 h\u00ecnh th\u00e0nh b\u1ecdt. H\u01a1n n\u1eefa, ch\u1ea5t kh\u1eed b\u1ecdt ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch khuy\u1ebfn kh\u00edch qu\u00e1 tr\u00ecnh tho\u00e1t n\u01b0\u1edbc c\u1ee7a m\u00e0ng l\u1ecfng kh\u1ecfi bong b\u00f3ng b\u1ecdt, khi\u1ebfn ch\u00fang v\u1ee1 ra.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
How to Make Defoaming Agent Foam formation in coating films can cause surface defects such as fisheyes, craters or pinholes […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-50","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/comments?post=50"}],"version-history":[{"count":4,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":65,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/posts\/50\/revisions\/65"}],"wp:attachment":[{"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/media?parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/categories?post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamingagent.net\/vi\/wp-json\/wp\/v2\/tags?post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}