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<\/a>\n1. ASE, HASE v\u00e0 HEUR l\u00e0 g\u00ec?<\/strong>
\nASE \u2013 Alkali Swellable Emulsion
\nASE l\u00e0 polymer acrylic d\u1ea1ng nh\u0169 t\u01b0\u01a1ng, c\u00f3 ch\u1ee9a c\u00e1c nh\u00f3m axit carboxylic. \u1ede tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u, c\u00e1c polymer t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng h\u1ea1t polymer co l\u1ea1i.
\nKhi t\u0103ng pH b\u1eb1ng ch\u1ea5t trung h\u00f2a, c\u00e1c nh\u00f3m axit chuy\u1ec3n th\u00e0nh nh\u00f3m carboxylate mang \u0111i\u1ec7n t\u00edch \u00e2m. C\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m n\u00e0y \u0111\u1ea9y nhau, khi\u1ebfn polymer tr\u01b0\u01a1ng n\u1edf v\u00e0 m\u1edf r\u1ed9ng trong n\u01b0\u1edbc.
\nKhi polymer tr\u01b0\u01a1ng n\u1edf, k\u00edch th\u01b0\u1edbc v\u00e0 th\u1ec3 t\u00edch c\u1ee7a polymer trong n\u01b0\u1edbc t\u0103ng l\u00ean, l\u00e0m c\u00e1c ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng kh\u00f3 h\u01a1n v\u00e0 t\u1eeb \u0111\u00f3 l\u00e0m t\u0103ng \u0111\u1ed9 nh\u1edbt c\u1ee7a s\u01a1n.
\nASE v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 ch\u1ea5t t\u1ea1o \u0111\u1eb7c kh\u00f4ng li\u00ean k\u1ebft (non-associative thickener). Ngh\u0129a l\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o \u0111\u1eb7c ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb s\u1ef1 tr\u01b0\u01a1ng n\u1edf c\u1ee7a polymer trong n\u01b0\u1edbc, ch\u1ee9 kh\u00f4ng ph\u1ea3i do polymer t\u1ea1o li\u00ean k\u1ebft v\u1edbi h\u1ea1t latex ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c trong s\u01a1n.
\n2. HASE \u2013 Hydrophobically Modified Alkali-Swellable Emulsion<\/strong>
\nHASE c\u00f3 n\u1ec1n t\u1ea3ng t\u01b0\u01a1ng t\u1ef1 ASE nh\u01b0ng \u0111\u01b0\u1ee3c g\u1eafn th\u00eam c\u00e1c nh\u00f3m hydrophobic.
\nSau khi trung h\u00f2a b\u1eb1ng ki\u1ec1m, polymer HASE v\u1eeba tr\u01b0\u01a1ng n\u1edf nh\u1edd ion h\u00f3a c\u00e1c nh\u00f3m carboxylate, v\u1eeba c\u00f3 kh\u1ea3 n\u0103ng li\u00ean k\u1ebft th\u00f4ng qua c\u00e1c nh\u00f3m hydrophobic.
\nC\u00e1c nh\u00f3m hydrophobic c\u00f3 th\u1ec3 t\u1eadp h\u1ee3p v\u1edbi nhau v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi nh\u1eefng th\u00e0nh ph\u1ea7n hydrophobic kh\u00e1c trong h\u1ec7, t\u1ea1o n\u00ean m\u1ed9t m\u1ea1ng l\u01b0\u1edbi li\u00ean k\u1ebft v\u1eadt l\u00fd. C\u01a1 ch\u1ebf n\u00e0y gi\u00fap HASE c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra rheology ph\u1ee9c t\u1ea1p h\u01a1n ASE.
\n\u0110\u00e2y l\u00e0 \u0111i\u1ec3m quan tr\u1ecdng khi\u1ebfn HASE c\u00f3 th\u1ec3 t\u1ea1o s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa \u0111\u1ed9 nh\u1edbt, \u0111\u1ed9 d\u00e0n tr\u1ea3i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ea3y x\u1ec7.
\n3. HEUR \u2013 Hydrophobically Modified Ethoxylated Urethane<\/strong>
\nKh\u00e1c v\u1edbi ASE v\u00e0 HASE, HEUR kh\u00f4ng c\u1ea7n c\u01a1 ch\u1ebf alkali swelling \u0111\u1ec3 t\u1ea1o \u0111\u1eb7c.
\nHEUR l\u00e0 polymer c\u00f3 ph\u1ea7n backbone hydrophilic, th\u01b0\u1eddng d\u1ef1a tr\u00ean poly(ethylene oxide), c\u00f9ng v\u1edbi c\u00e1c nh\u00f3m hydrophobic \u1edf \u0111\u1ea7u m\u1ea1ch.
\nTrong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc, c\u00e1c nh\u00f3m hydrophobic c\u00f3 xu h\u01b0\u1edbng t\u1eadp h\u1ee3p l\u1ea1i t\u1ea1o th\u00e0nh c\u00e1c \u201cmicelle\u201d. C\u00e1c chu\u1ed7i polymer c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i nh\u1eefng v\u00f9ng hydrophobic n\u00e0y v\u1edbi nhau, \u0111\u1ed3ng th\u1eddi t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c h\u1ea1t latex ho\u1eb7c th\u00e0nh ph\u1ea7n hydrophobic trong h\u1ec7 s\u01a1n. K\u1ebft qu\u1ea3 l\u00e0 h\u00ecnh th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi li\u00ean k\u1ebft v\u1eadt l\u00fd \u0111\u1ed9ng.
\nCH\u1ea4T T\u1ea0O \u0110\u1eb6C \u1ea2NH H\u01af\u1edeNG NH\u01af TH\u1ebe N\u00c0O \u0110\u1ebeN KH\u1ea2 N\u0102NG CH\u1ed0NG CH\u1ea2Y X\u1ec6, LEVELING & CH\u1ed0NG B\u1eaeN T\u00d3E KHI THI C\u00d4NG?<\/strong>
\n1. Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ea3y x\u1ec7 (Sag resistance)<\/strong>
\nKhi s\u01a1n \u0111\u01b0\u1ee3c thi c\u00f4ng tr\u00ean b\u1ec1 m\u1eb7t \u0111\u1ee9ng, tr\u1ecdng l\u1ef1c c\u00f3 xu h\u01b0\u1edbng k\u00e9o m\u00e0ng s\u01a1n ch\u1ea3y xu\u1ed1ng. Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ea3y x\u1ec7 ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o \u0111\u1ed9 nh\u1edbt \u1edf t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p (low-shear viscosity) v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ea5u tr\u00fac sau khi thi c\u00f4ng.
\nN\u1ebfu c\u1ea5u tr\u00fac c\u1ee7a s\u01a1n qu\u00e1 y\u1ebfu ho\u1eb7c ph\u1ee5c h\u1ed3i qu\u00e1 ch\u1eadm sau khi l\u0103n, qu\u00e9t, m\u00e0ng s\u01a1n d\u1ec5 b\u1ecb ch\u1ea3y x\u1ec7.
\nASE v\u00e0 HASE th\u01b0\u1eddng t\u1ea1o t\u1ed1t \u0111\u1ed9 nh\u1edbt v\u00e0 c\u1ea5u tr\u00fac \u1edf tr\u1ea1ng th\u00e1i shear th\u1ea5p, gi\u00fap s\u01a1n gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0y tr\u00ean b\u1ec1 m\u1eb7t \u0111\u1ee9ng. Trong khi \u0111\u00f3, HEUR t\u1ea1o \u0111\u1ed9 nh\u1edbt th\u00f4ng qua c\u00e1c t\u01b0\u01a1ng t\u00e1c li\u00ean k\u1ebft t\u1ea1m th\u1eddi. M\u1ea1ng l\u01b0\u1edbi n\u00e0y c\u00f3 th\u1ec3 thay \u0111\u1ed5i khi ch\u1ecbu l\u1ef1c c\u1eaft v\u00e0 h\u00ecnh th\u00e0nh l\u1ea1i khi l\u1ef1c c\u1eaft gi\u1ea3m, t\u1eeb \u0111\u00f3 h\u1ed7 tr\u1ee3 c\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng thi c\u00f4ng v\u00e0 ch\u1ed1ng ch\u1ea3y x\u1ec7.
\n2. Flow & Leveling \u2013 Kh\u1ea3 n\u0103ng ch\u1ea3y v\u00e0 t\u1ef1 san ph\u1eb3ng<\/strong>
\nLeveling l\u00e0 kh\u1ea3 n\u0103ng m\u00e0ng s\u01a1n t\u1ef1 tr\u1ea3i \u0111\u1ec1u sau khi thi c\u00f4ng, gi\u00fap l\u00e0m gi\u1ea3m v\u1ebft c\u1ecd (brush mark), v\u1ebft rul\u00f4 (roller mark) v\u00e0 c\u00e1c khuy\u1ebft t\u1eadt tr\u00ean b\u1ec1 m\u1eb7t.
\nHEUR th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 s\u01a1n y\u00eau c\u1ea7u flow & leveling t\u1ed1t. Nh\u1edd c\u01a1 ch\u1ebf t\u1ea1o m\u1ea1ng l\u01b0\u1edbi li\u00ean k\u1ebft t\u1ea1m th\u1eddi, HEUR c\u00f3 th\u1ec3 gi\u00fap s\u01a1n thay \u0111\u1ed5i \u0111\u1ed9 nh\u1edbt theo \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng: d\u1ec5 ch\u1ea3y khi ch\u1ecbu l\u1ef1c c\u1eaft nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ea5u tr\u00fac sau khi thi c\u00f4ng.
\n3. Ch\u1ed1ng b\u1eafn t\u00f3e khi l\u0103n (Roller spatter)<\/strong>
\nSpatter l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng s\u01a1n b\u1ecb b\u1eafn th\u00e0nh c\u00e1c gi\u1ecdt nh\u1ecf trong qu\u00e1 tr\u00ecnh thi c\u00f4ng b\u1eb1ng rul\u00f4.
\nKhi rul\u00f4 quay, m\u00e0ng s\u01a1n li\u00ean t\u1ee5c b\u1ecb k\u00e9o gi\u00e3n, bi\u1ebfn d\u1ea1ng v\u00e0 ph\u00e1 v\u1ee1 th\u00e0nh c\u00e1c gi\u1ecdt nh\u1ecf. V\u00ec v\u1eady, hi\u1ec7n t\u01b0\u1ee3ng b\u1eafn t\u00f3e kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 nh\u1edbt m\u00e0 c\u00f2n li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 \u0111\u00e0n h\u1ed3i (elasticity) v\u00e0 c\u00e1ch c\u1ea5u tr\u00fac c\u1ee7a s\u01a1n ph\u1ea3n \u1ee9ng khi ch\u1ecbu l\u1ef1c c\u1eaft.
\nC\u00e1c ch\u1ea5t t\u1ea1o \u0111\u1eb7c associative nh\u01b0 HASE v\u00e0 HEUR c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00e0 t\u1ed1i \u01b0u \u0111\u1ec3 ki\u1ec3m so\u00e1t rheology c\u1ee7a s\u01a1n, t\u1eeb \u0111\u00f3 g\u00f3p ph\u1ea7n gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng b\u1eafn t\u00f3e trong qu\u00e1 tr\u00ecnh l\u0103n.
\nK\u1ebeT LU\u1eacN
\nHEUR, HASE v\u00e0 ASE \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o \u0111\u1ed9 nh\u1edbt cho s\u01a1n n\u01b0\u1edbc, nh\u01b0ng m\u1ed7i lo\u1ea1i ho\u1ea1t \u0111\u1ed9ng theo m\u1ed9t c\u01a1 ch\u1ebf kh\u00e1c nhau v\u00e0 t\u1ea1o ra profile rheology kh\u00e1c nhau.
\n\u2022 ASE: t\u1ea1o \u0111\u1ed9 nh\u1edbt ch\u1ee7 y\u1ebfu th\u00f4ng qua c\u01a1 ch\u1ebf polymer tr\u01b0\u01a1ng n\u1edf trong m\u00f4i tr\u01b0\u1eddng ki\u1ec1m (alkali swelling), ph\u00f9 h\u1ee3p khi c\u1ea7n x\u00e2y d\u1ef1ng c\u1ea5u tr\u00fac \u1edf tr\u1ea1ng th\u00e1i shear th\u1ea5p v\u00e0 h\u1ed7 tr\u1ee3 ch\u1ed1ng ch\u1ea3y x\u1ec7.
\n\u2022 HASE: c\u0169ng d\u1ef1a tr\u00ean c\u01a1 ch\u1ebf tr\u01b0\u01a1ng n\u1edf trong m\u00f4i tr\u01b0\u1eddng ki\u1ec1m nh\u01b0ng c\u00f3 th\u00eam t\u01b0\u01a1ng t\u00e1c li\u00ean k\u1ebft (associative interaction), gi\u00fap \u0111i\u1ec1u ch\u1ec9nh c\u00e2n b\u1eb1ng gi\u1eefa viscosity, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ea3y x\u1ec7 v\u00e0 kh\u1ea3 n\u0103ng thi c\u00f4ng.
\n\u2022 HEUR: t\u1ea1o \u0111\u1ed9 nh\u1edbt th\u00f4ng qua li\u00ean k\u1ebft gi\u1eefa c\u00e1c ph\u1ea7n k\u1ef5 n\u01b0\u1edbc (hydrophobic association), th\u01b0\u1eddng \u0111\u01b0\u1ee3c quan t\u00e2m khi y\u00eau c\u1ea7u cao v\u1ec1 flow, leveling v\u00e0 c\u1ea3m gi\u00e1c thi c\u00f4ng.<\/p>","protected":false},"excerpt":{"rendered":"
Trong c\u00f4ng th\u1ee9c s\u01a1n n\u01b0\u1edbc, ch\u1ea5t t\u1ea1o \u0111\u1eb7c (thickener\/rheology modifier) kh\u00f4ng \u0111\u01a1n thu\u1ea7n ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u201ct\u0103ng \u0111\u1ed9 nh\u1edbt\u201d. M\u1ed9t h\u1ec7 t\u1ea1o \u0111\u1eb7c […]<\/p>","protected":false},"author":5,"featured_media":4585,"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-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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts\/4584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/comments?post=4584"}],"version-history":[{"count":0,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts\/4584\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media\/4585"}],"wp:attachment":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media?parent=4584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/categories?post=4584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/tags?post=4584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}