![\"\"](\"https:\/\/aktc.com.vn\/wp-content\/uploads\/2026\/09\/2-2.jpg\" "\\"\\"")
<\/a><\/p>\nS\u1ef0 T\u01af\u01a0NG T\u00c1C GI\u1eeeA HPMC & RDP TRONG C\u00d4NG TH\u1ee8C<\/strong><\/p>\nM\u1ed9t c\u00f4ng th\u1ee9c keo d\u00e1n g\u1ea1ch kh\u00f4ng ch\u1ec9 g\u1ed3m HPMC v\u00e0 RDP. Cement, c\u00e1t, filler, n\u01b0\u1edbc v\u00e0 c\u00e1c ph\u1ee5 gia kh\u00e1c c\u00f9ng tham gia v\u00e0o h\u1ec7.<\/p>\n
Khi th\u00eam HPMC, polymer n\u00e0y t\u01b0\u01a1ng t\u00e1c v\u1edbi n\u01b0\u1edbc v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n v\u00f4 c\u01a1, t\u1ea1o ra m\u1ed9t pha c\u00f3 \u0111\u1ed9 nh\u1edbt cao h\u01a1n. Khi th\u00eam RDP, c\u00e1c h\u1ea1t polymer ph\u00e2n t\u00e1n trong h\u1ec7 v\u00e0 c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi cement, cellulose ether v\u00e0 b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t kho\u00e1ng.<\/p>\n
\u0110i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 thay \u0111\u1ed5i m\u1ed9t th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a th\u00e0nh ph\u1ea7n c\u00f2n l\u1ea1i.<\/p>\n
Nghi\u00ean c\u1ee9u v\u1ec1 cellulose ether trong keo d\u00e1n g\u1ea1ch cho th\u1ea5y l\u1ef1a ch\u1ecdn cellulose ether v\u00e0 latex powder c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng l\u1eabn nhau th\u00f4ng qua hi\u1ec7n t\u01b0\u1ee3ng c\u1ea1nh tranh h\u1ea5p ph\u1ee5. K\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n qua \u0111\u1ed9 nh\u1edbt, th\u1eddi gian \u0111\u00f4ng k\u1ebft, v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a keo.<\/p>\n
\n- Giai \u0111o\u1ea1n tr\u1ed9n v\u00e0 thi c\u00f4ng<\/strong><\/li>\n<\/ol>\n
HPMC b\u1eaft \u0111\u1ea7u hydrat h\u00f3a v\u00e0 \u1ea3nh h\u01b0\u1edfng m\u1ea1nh \u0111\u1ebfn \u0111\u1ed9 nh\u1edbt, \u0111\u1ed9 \u0111\u1eb7c, kh\u1ea3 n\u0103ng gi\u1eef n\u01b0\u1edbc v\u00e0 c\u1ea3m gi\u00e1c thi c\u00f4ng.<\/p>\n
N\u1ebfu HPMC kh\u00f4ng ph\u00f9 h\u1ee3p, keo c\u00f3 th\u1ec3 qu\u00e1 \u0111\u1eb7c, kh\u00f3 k\u00e9o r\u0103ng c\u01b0a ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i qu\u00e1 l\u1ecfng v\u00e0 kh\u00f3 ki\u1ec3m so\u00e1t.<\/p>\n
RDP \u1edf giai \u0111o\u1ea1n n\u00e0y c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn rheology \u2013 \u0111\u1eb7c t\u00ednh d\u00f2ng ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u, nh\u01b0ng vai tr\u00f2 c\u1ee7a n\u00f3 kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 \u201ct\u0103ng \u0111\u1ed9 nh\u1edbt\u201d.<\/p>\n
\n- Giai \u0111o\u1ea1n sau khi thi c\u00f4ng<\/strong><\/li>\n<\/ol>\n
Khi keo n\u1eb1m gi\u1eefa n\u1ec1n v\u00e0 vi\u00ean g\u1ea1ch, kh\u1ea3 n\u0103ng gi\u1eef n\u01b0\u1edbc tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng.<\/p>\n
HPMC gi\u00fap h\u1ea1n ch\u1ebf m\u1ea5t n\u01b0\u1edbc qu\u00e1 nhanh, trong khi qu\u00e1 tr\u00ecnh hydrat h\u00f3a xi m\u0103ng ti\u1ebfp t\u1ee5c di\u1ec5n ra. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng v\u1edbi l\u1edbp keo m\u1ecfng ho\u1eb7c n\u1ec1n h\u00fat n\u01b0\u1edbc.<\/p>\n
N\u1ebfu n\u01b0\u1edbc m\u1ea5t qu\u00e1 nhanh, qu\u00e1 tr\u00ecnh t\u1ea1o c\u1ea5u tr\u00fac c\u1ee7a v\u1eefa c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng. Nghi\u00ean c\u1ee9u v\u1ec1 keo d\u00e1n g\u1ea1ch cho th\u1ea5y cellulose ether c\u00f3 vai tr\u00f2 gi\u1eef n\u01b0\u1edbc \u0111\u1ec3 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh hydrat h\u00f3a xi m\u0103ng trong l\u1edbp v\u1eefa m\u1ecfng.<\/p>\n
\n- Giai \u0111o\u1ea1n \u0111\u00f3ng r\u1eafn<\/strong><\/li>\n<\/ol>\n
Khi n\u01b0\u1edbc ti\u1ebfp t\u1ee5c m\u1ea5t \u0111i v\u00e0 h\u1ec7 cement ph\u00e1t tri\u1ec3n c\u1ea5u tr\u00fac, c\u00e1c h\u1ea1t polymer t\u1eeb RDP c\u00f3 \u0111i\u1ec1u ki\u1ec7n ti\u1ebfn g\u1ea7n nhau v\u00e0 h\u00ecnh th\u00e0nh pha polymer.<\/p>\n
Pha polymer n\u00e0y g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean c\u1ea5u tr\u00fac li\u00ean k\u1ebft linh ho\u1ea1t h\u01a1n trong n\u1ec1n v\u1eefa, h\u1ed7 tr\u1ee3 \u0111\u1ed9 b\u00e1m d\u00ednh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu bi\u1ebfn d\u1ea1ng.<\/p>\n
K\u1ebeT LU\u1eacN<\/strong><\/p>\nTrong keo d\u00e1n g\u1ea1ch, HPMC v\u00e0 RDP kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp m\u00e0 c\u00f9ng tham gia v\u00e0o qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1t tri\u1ec3n t\u00ednh n\u0103ng c\u1ee7a v\u1eefa, t\u1eeb l\u00fac tr\u1ed9n, thi c\u00f4ng cho \u0111\u1ebfn khi \u0111\u00f3ng r\u1eafn. HPMC ch\u1ee7 y\u1ebfu ki\u1ec3m so\u00e1t n\u01b0\u1edbc, \u0111\u1ed9 nh\u1edbt, kh\u1ea3 n\u0103ng gi\u1eef n\u01b0\u1edbc v\u00e0 t\u00ednh c\u00f4ng t\u00e1c, trong khi RDP \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong \u0111\u1ed9 b\u00e1m d\u00ednh, \u0111\u1ed9 li\u00ean k\u1ebft, t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu bi\u1ebfn d\u1ea1ng c\u1ee7a l\u1edbp keo sau \u0111\u00f3ng r\u1eafn.<\/p>","protected":false},"excerpt":{"rendered":"
Trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n keo d\u00e1n g\u1ea1ch, m\u1ed9t t\u00ecnh hu\u1ed1ng kh\u00e1 ph\u1ed5 bi\u1ebfn l\u00e0 c\u00f4ng th\u1ee9c \u0111\u00e3 s\u1eed d\u1ee5ng c\u1ea3 RDP v\u00e0 HPMC, nh\u01b0ng […]<\/p>","protected":false},"author":5,"featured_media":4601,"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-4600","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\/4600","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=4600"}],"version-history":[{"count":0,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts\/4600\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media\/4601"}],"wp:attachment":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media?parent=4600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/categories?post=4600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/tags?post=4600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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