{"id":9991,"date":"2026-06-03T16:05:53","date_gmt":"2026-06-03T08:05:53","guid":{"rendered":"https:\/\/rysilicone.com\/?p=9991"},"modified":"2026-06-04T16:09:59","modified_gmt":"2026-06-04T08:09:59","slug":"chemical-properties-of-silicone","status":"publish","type":"post","link":"https:\/\/rysilicone.com\/vi\/chemical-properties-of-silicone\/","title":{"rendered":"T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a silicon: Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i nh\u1eefng ch\u1ea5t n\u00e0o v\u00e0 nh\u1eefng ch\u1ea5t n\u00e0o \u00e2m th\u1ea7m t\u1ea5n c\u00f4ng n\u00f3."},"content":{"rendered":"<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c \u0111\u1ed9i \u0111\u1ec1u ch\u1ecdn keo silicone gi\u1ed1ng nh\u01b0 c\u00e1ch h\u1ecd ch\u1ecdn linh ki\u1ec7n trong catalog. H\u1ecd \u0111\u1ecdc c\u1ee5m t\u1eeb &quot;tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc&quot;, cho r\u1eb1ng n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi ch\u1ea5t l\u1ecfng c\u1ee7a h\u1ecd, r\u1ed3i ti\u1ebfp t\u1ee5c. Gio\u0103ng v\u01b0\u1ee3t qua kh\u00e2u ki\u1ec3m tra \u0111\u1ea7u v\u00e0o. N\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong tu\u1ea7n \u0111\u1ea7u ti\u00ean ngo\u00e0i th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R\u1ed3i n\u00f3 ph\u1ed3ng l\u00ean. M\u1ed9t mi\u1ebfng \u0111\u1ec7m \u0111\u01b0\u1ee3c \u0111o \u0111\u00fang theo b\u1ea3n v\u1ebd l\u1ea1i \u0111\u01b0\u1ee3c kh\u00e1ch h\u00e0ng g\u1eedi tr\u1ea3 v\u1edbi k\u00edch th\u01b0\u1edbc 12% qu\u00e1 kh\u1ed5, m\u1ec1m v\u00e0 r\u00f2 r\u1ec9. Kh\u00f4ng ai thay \u0111\u1ed5i v\u1eadt li\u1ec7u c\u1ea3. Ch\u1ea5t l\u1ecfng \u0111\u00e3 ph\u1ea3n \u1ee9ng \u0111\u00fang nh\u01b0 d\u1ef1 \u0111o\u00e1n v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc \u2014 ch\u1ec9 l\u00e0 b\u1ea3n \u0111\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt ch\u01b0a t\u00ednh \u0111\u1ebfn \u0111i\u1ec1u \u0111\u00f3 m\u00e0 th\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Silicone (VMQ) tr\u01a1 v\u1edbi n\u01b0\u1edbc, r\u01b0\u1ee3u, axit v\u00e0 baz\u01a1 lo\u00e3ng, ozone v\u00e0 tia UV v\u00ec c\u1ea5u tr\u00fac Si\u2013O c\u1ee7a n\u00f3 kh\u00f4ng c\u00f3 v\u1ecb tr\u00ed ph\u1ea3n \u1ee9ng d\u1ec5 d\u00e0ng. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng m\u1ecdi th\u1ee9: dung m\u00f4i kh\u00f4ng ph\u00e2n c\u1ef1c v\u00e0 hydrocarbon n\u00f3ng l\u00e0m n\u00f3 tr\u01b0\u01a1ng n\u1edf, ch\u1ea5t oxy h\u00f3a m\u1ea1nh v\u00e0 axit \u0111\u1eadm \u0111\u1eb7c l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a n\u00f3, v\u00e0 c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng d\u1ea7u ho\u1eb7c nhi\u00ean li\u1ec7u \u2014 \u0111\u00f3 ch\u00ednh l\u00e0 l\u00fd do t\u1ea1i sao fluorosilicone (FVMQ) t\u1ed3n t\u1ea1i.<\/strong> Sau \u0111\u00e2y l\u00e0 v\u1ecb tr\u00ed th\u1ef1c s\u1ef1 c\u1ee7a ranh gi\u1edbi \u0111\u00f3 v\u00e0 c\u00e1ch th\u1ee9c ch\u1ee9ng minh s\u1ef1 kh\u00e1ng c\u1ef1 thay v\u00ec ch\u1ec9 gi\u1ea3 \u0111\u1ecbnh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00f3m t\u1eaft<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u00ednh tr\u01a1 n\u1eb1m \u1edf c\u1ea5u tr\u00fac x\u01b0\u01a1ng s\u1ed1ng, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf c\u1ea5p \u0111\u1ed9 trong b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/strong> Chu\u1ed7i Si\u2013O\u2013Si c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i qu\u00e1 tr\u00ecnh oxy h\u00f3a, ozone v\u00e0 th\u1ee7y ph\u00e2n, nh\u01b0ng n\u00f3 kh\u00f4ng ng\u0103n c\u1ea3n \u0111\u01b0\u1ee3c c\u00e1c dung m\u00f4i kh\u00f4ng ph\u00e2n c\u1ef1c khu\u1ebfch t\u00e1n v\u00e0o v\u00e0 l\u00e0m ph\u1ed3ng m\u1ea1ng l\u01b0\u1edbi.<\/li>\n\n\n\n<li><strong>\u201cKh\u00e1i ni\u1ec7m \u201dt\u01b0\u01a1ng th\u00edch\u201d s\u1ebd v\u00f4 ngh\u0129a n\u1ebfu thi\u1ebfu \u0111i c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 nhi\u1ec7t \u0111\u1ed9, n\u1ed3ng \u0111\u1ed9 v\u00e0 th\u1eddi gian ti\u1ebfp x\u00fac.<\/strong> C\u00f9ng m\u1ed9t lo\u1ea1i dung d\u1ecbch n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0: Khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng \u1edf 23\u00b0C khi ng\u00e2m gi\u00e1n \u0111o\u1ea1n v\u00e0 Kh\u00f4ng khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng \u1edf 100\u00b0C khi ng\u00e2m li\u00ean t\u1ee5c.<\/li>\n\n\n\n<li><strong>D\u1ea7u v\u00e0 nhi\u00ean li\u1ec7u l\u00e0 nh\u1eefng v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng sai th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/strong> VMQ ti\u00eau chu\u1ea9n tr\u01b0\u01a1ng n\u1edf m\u1ea1nh trong hydrocarbon; n\u1ebfu ti\u1ebfp x\u00fac v\u1edbi d\u1ea7u, nhi\u00ean li\u1ec7u ho\u1eb7c dung m\u00f4i th\u01a1m, th\u00ec c\u1ea7n chuy\u1ec3n sang s\u1eed d\u1ee5ng fluorosilicone, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t lo\u1ea1i silicone kh\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ec sao Silicone l\u1ea1i tr\u01a1: \u0111\u00f3 l\u00e0 c\u1ea5u tr\u00fac x\u01b0\u01a1ng s\u1ed1ng, ch\u1ee9 kh\u00f4ng ph\u1ea3i th\u01b0\u01a1ng hi\u1ec7u.<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability.jpg\" alt=\"\" class=\"wp-image-16365\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-Si-O-backbone-chemical-stability-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Silicone l\u00e0 m\u1ed9t <a href=\"https:\/\/rysilicone.com\/vi\/properties-of-silicone\/\" target=\"_blank\" rel=\"noreferrer noopener\">polysiloxan<\/a> \u2014 m\u1ed9t khung x\u01b0\u01a1ng Si\u2013O\u2013Si v\u00f4 c\u01a1 v\u1edbi c\u00e1c nh\u00f3m metyl g\u1eafn v\u00e0o silic. Cao su h\u1eefu c\u01a1 (NR, EPDM, NBR) \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o tr\u00ean c\u00e1c chu\u1ed7i carbon\u2013carbon. S\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 ch\u00ednh l\u00e0 to\u00e0n b\u1ed9 c\u00e2u chuy\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Li\u00ean k\u1ebft Si\u2013O l\u00e0 m\u1ed9t trong nh\u1eefng li\u00ean k\u1ebft b\u1ec1n nh\u1ea5t trong c\u00e1c ch\u1ea5t \u0111\u00e0n h\u1ed3i th\u01b0\u01a1ng m\u1ea1i v\u00e0 kh\u00f4ng c\u00f3 li\u00ean k\u1ebft \u0111\u00f4i n\u00e0o trong chu\u1ed7i ch\u00ednh \u0111\u1ec3 ozone ho\u1eb7c oxy t\u1ea5n c\u00f4ng. V\u00ec v\u1eady, silicone c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i qu\u00e1 tr\u00ecnh oxy h\u00f3a, tia c\u1ef1c t\u00edm, ozone v\u00e0 s\u1ef1 phong h\u00f3a trong h\u01a1n 20 n\u0103m ngo\u00e0i tr\u1eddi. <a href=\"https:\/\/rysilicone.com\/vi\/silicone-vs-rubber\/\" target=\"_blank\" rel=\"noreferrer noopener\">cao su h\u1eefu c\u01a1<\/a> N\u00f3 b\u1ecb n\u1ee9t. N\u00f3 th\u1ef1c s\u1ef1 b\u1ec1n v\u1eefng khi ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc, r\u01b0\u1ee3u, axit v\u00e0 baz\u01a1 lo\u00e3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng s\u1ef1 tr\u00ec tr\u1ec7 \u0111\u1ed1i v\u1edbi <em>s\u1ef1 ph\u1ea3n \u1ee9ng l\u1ea1i<\/em> kh\u00f4ng gi\u1ed1ng v\u1edbi kh\u1ea3 n\u0103ng kh\u00e1ng c\u1ef1. <em>h\u1ea5p th\u1ee5<\/em>. Silicone l\u00e0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi t\u01b0\u01a1ng \u0111\u1ed1i m\u1edf, c\u00f3 m\u1eadt \u0111\u1ed9 li\u00ean k\u1ebft ngang th\u1ea5p. C\u00e1c ph\u00e2n t\u1eed kh\u00f4ng ph\u00e2n c\u1ef1c nh\u1ecf c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111i v\u00e0o b\u00ean trong. Ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc kh\u00f4ng bao gi\u1edd x\u1ea3y ra \u2014 chi ti\u1ebft ch\u1ec9 b\u1ecb ph\u1ed3ng l\u00ean, m\u1ec1m \u0111i v\u00e0 m\u1ea5t kh\u1ea3 n\u0103ng l\u00e0m k\u00edn. C\u00e1c nh\u00f3m th\u01b0\u1eddng xuy\u00ean nh\u1ea7m l\u1eabn hai \u0111i\u1ec1u n\u00e0y, v\u00e0 \u0111\u00f3 l\u00e0 nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn h\u1ea7u h\u1ebft c\u00e1c l\u1ed7i trong th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">N\u01a1i silicon gi\u1eef ch\u1eb7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 nh\u1eefng m\u00f4i tr\u01b0\u1eddng m\u00e0 VMQ ti\u00eau chu\u1ea9n ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 danh ti\u1ebfng &quot;tr\u01a1 l\u00ec&quot; c\u1ee7a n\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u01b0\u1edbc l\u1ea1nh v\u00e0 n\u01b0\u1edbc \u1ea5m, n\u01b0\u1edbc mu\u1ed1i v\u00e0 h\u1ea7u h\u1ebft c\u00e1c dung d\u1ecbch mu\u1ed1i trong n\u01b0\u1edbc.<\/li>\n\n\n\n<li>Methanol, ethanol, c\u1ed3n isopropyl, glycol v\u00e0 glycerin<\/li>\n\n\n\n<li>Axit kho\u00e1ng lo\u00e3ng v\u00e0 ki\u1ec1m lo\u00e3ng \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng<\/li>\n\n\n\n<li>Ozone, oxy v\u00e0 tia c\u1ef1c t\u00edm \u2014 silicon g\u1ea7n nh\u01b0 \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t trong c\u00e1c kh\u00eda c\u1ea1nh n\u00e0y.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y, gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf \u0111\u1ebfn t\u1eeb nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1eddi gian, ch\u1ee9 kh\u00f4ng ph\u1ea3i t\u1eeb s\u1ef1 t\u1ea5n c\u00f4ng h\u00f3a h\u1ecdc. N\u01b0\u1edbc n\u00f3ng li\u00ean t\u1ee5c v\u00e0 h\u01a1i n\u01b0\u1edbc \u00e1p su\u1ea5t th\u1ea5p d\u01b0\u1edbi ~100\u00b0C l\u00e0 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u; c\u01a1 ch\u1ebf h\u01b0 h\u1ecfng \u1edf \u0111\u00f3 l\u00e0 th\u1ee7y ph\u00e2n ch\u1eadm v\u00e0 tho\u00e1i h\u00f3a, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u01b0\u01a1ng n\u1edf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng \u0111i\u1ec3m m\u00e0 silicone g\u00e2y ra: S\u01b0ng t\u1ea5y, kh\u00f4ng ph\u1ea3n \u1ee9ng<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network.jpg\" alt=\"\" class=\"wp-image-16366\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Solvent-molecules-swelling-silicone-network-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t n\u1eeda s\u1ed1 h\u00ecnh \u1ea3nh m\u00e0 c\u00e1c b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u01b0\u1eddng b\u1ecf qua.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dung m\u00f4i th\u01a1m v\u00e0 clo h\u00f3a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Toluene, xylene, benzene, carbon tetrachloride v\u00e0 chloroform l\u00e0 nh\u1eefng ch\u1ea5t g\u00e2y h\u1ea1i nh\u1ea5t. Silicone ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 n\u1edf ra t\u1eeb 100\u2013200% theo th\u1ec3 t\u00edch trong c\u00e1c dung m\u00f4i n\u00e0y \u2014 n\u00f3 h\u1ea5p th\u1ee5 dung m\u00f4i nh\u01b0 m\u1ed9t mi\u1ebfng b\u1ecdt bi\u1ec3n, ph\u1ed3ng l\u00ean v\u00e0 m\u1ea5t g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. Khi dung m\u00f4i bay h\u01a1i, chi ti\u1ebft s\u1ebd co l\u1ea1i, nh\u01b0ng hi\u1ebfm khi tr\u1edf l\u1ea1i k\u00edch th\u01b0\u1edbc ho\u1eb7c \u0111\u1ed9 c\u1ee9ng ban \u0111\u1ea7u. \u0110\u1ed1i v\u1edbi vi\u1ec7c l\u00e0m k\u00edn, chu k\u1ef3 n\u1edf\/co l\u1ea1i duy nh\u1ea5t \u0111\u00f3 l\u00e0 d\u1ea5u ch\u1ea5m h\u1ebft cho chi ti\u1ebft.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type.jpg\" alt=\"\" class=\"wp-image-16362\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-swelling-risk-by-fluid-type-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Xeton v\u00e0 Este<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Acetone, MEK v\u00e0 ethyl acetate g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u01a1ng n\u1edf v\u1eeba ph\u1ea3i. Ti\u1ebfp x\u00fac ng\u1eafn, gi\u00e1n \u0111o\u1ea1n (lau ch\u00f9i, l\u00e0m s\u1ea1ch) th\u01b0\u1eddng kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng. Ng\u00e2m li\u00ean t\u1ee5c th\u00ec kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1ea7u m\u1ecf v\u00e0 nhi\u00ean li\u1ec7u \u2014 Th\u1ee9 t\u1ed1n k\u00e9m nh\u1ea5t<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil.jpg\" alt=\"\" class=\"wp-image-16367\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/VMQ-seal-failure-in-hot-oil-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u VMQ ti\u00eau chu\u1ea9n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu k\u00e9m v\u1edbi d\u1ea7u kho\u00e1ng, d\u1ea7u \u0111\u1ed9ng c\u01a1, x\u0103ng v\u00e0 d\u1ea7u diesel, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u00e2y l\u00e0 l\u1ed7i sai th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 t\u1ed1n k\u00e9m nh\u1ea5t m\u00e0 t\u00f4i th\u01b0\u1eddng th\u1ea5y, b\u1edfi v\u00ec b\u1ed9 ph\u1eadn tr\u00f4ng v\u1eabn \u1ed5n cho \u0111\u1ebfn khi n\u00f3 ng\u00e2m trong ch\u1ea5t l\u1ecfng \u1edf nhi\u1ec7t \u0111\u1ed9 cao. N\u1ebfu d\u1ea7u ho\u1eb7c nhi\u00ean li\u1ec7u c\u00f3 trong h\u1ec7 th\u1ed1ng, th\u00ec c\u00e2u tr\u1ea3 l\u1eddi l\u00e0... <a href=\"https:\/\/rysilicone.com\/vi\/silicone-types-and-differences\/\" target=\"_blank\" rel=\"noreferrer noopener\">fluorosilicone (FVMQ)<\/a>, Lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y \u0111\u00e1nh \u0111\u1ed5i chi ph\u00ed v\u00e0 m\u1ed9t s\u1ed1 t\u00ednh linh ho\u1ea1t \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu hydrocarbon th\u1ef1c s\u1ef1. Ch\u00eanh l\u1ec7ch gi\u00e1 kh\u00f4ng h\u1ec1 nh\u1ecf \u2014 h\u00e3y x\u00e1c nh\u1eadn lo\u1ea1i v\u1eadt li\u1ec7u tr\u01b0\u1edbc khi b\u00e1o gi\u00e1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1ecb tr\u00ed m\u00e0 silicon th\u1ef1c s\u1ef1 b\u1ecb ph\u00e2n h\u1ee7y<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 tr\u01b0\u01a1ng n\u1edf l\u00e0 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc thu\u1eadn ngh\u1ecbch di\u1ec5n ra trong m\u1ea1ng l\u01b0\u1edbi t\u1ebf b\u00e0o. <a href=\"https:\/\/rysilicone.com\/vi\/does-silicone-degrade-over-time\/\" target=\"_blank\" rel=\"noreferrer noopener\">S\u1ef1 suy tho\u00e1i<\/a> X\u01b0\u01a1ng s\u1ed1ng \u0111ang b\u1ecb g\u00e3y. Nh\u1eefng k\u1ebb g\u00e2y ra \u0111i\u1ec1u \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Axit sulfuric v\u00e0 axit nitric \u0111\u1eadm \u0111\u1eb7c<\/li>\n\n\n\n<li>Ki\u1ec1m \u0111\u1eadm \u0111\u1eb7c n\u00f3ng (t\u1ea5n c\u00f4ng \u0103n m\u00f2n li\u00ean k\u1ebft Si\u2013O)<\/li>\n\n\n\n<li>C\u00e1c ch\u1ea5t oxy h\u00f3a m\u1ea1nh v\u00e0 h\u01a1i n\u01b0\u1edbc si\u00eau n\u00f3ng tr\u00ean ~120\u00b0C, th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh ph\u00e2n c\u1eaft chu\u1ed7i th\u1ee7y ph\u00e2n.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t khi ph\u1ea7n x\u01b0\u01a1ng s\u1ed1ng b\u1ecb c\u1eaft, s\u1ebd kh\u00f4ng c\u00f3 s\u1ef1 ph\u1ee5c h\u1ed3i v\u00e0 kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u01a1ng n\u1edf tr\u1edf l\u1ea1i. Ph\u1ea7n \u0111\u00f3 s\u1ebd b\u1ecb ph\u1ea5n h\u00f3a, n\u1ee9t n\u1ebb ho\u1eb7c tr\u1edf n\u00ean d\u00ednh. \u0110\u1ed1i v\u1edbi nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y, silicone l\u00e0 polyme n\u1ec1n kh\u00f4ng ph\u00f9 h\u1ee3p \u2014 \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Silicone c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 m\u00f9i v\u00e0 v\u1ecb kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ea5n \u0111\u1ec1 n\u00e0y th\u01b0\u1eddng xuy\u00ean xu\u1ea5t hi\u1ec7n tr\u00ean c\u00e1c s\u1ea3n ph\u1ea9m th\u1ef1c ph\u1ea9m v\u00e0 s\u1ea3n ph\u1ea9m d\u00e0nh cho tr\u1ebb em, v\u00ec v\u1eady c\u1ea7n ph\u1ea3i n\u00f3i r\u00f5 r\u00e0ng. Silicone kh\u00f4ng h\u1ea5p th\u1ee5 m\u00f9i b\u1eb1ng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. Ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 l\u00e0... <em>th\u1ea9m th\u1ea5u<\/em>. C\u1ea5u tr\u00fac m\u1ea1ng l\u01b0\u1edbi m\u1edf cho ph\u00e9p kh\u00ed \u0111i qua c\u0169ng cho ph\u00e9p c\u00e1c ph\u00e2n t\u1eed m\u00f9i v\u00e0 v\u1ecb h\u1ea5p th\u1ee5 v\u00e0o b\u1ec1 m\u1eb7t v\u00e0 gi\u1ea3i ph\u00f3ng t\u1eeb t\u1eeb sau \u0111\u00f3. Xem th\u00eam <a href=\"https:\/\/rysilicone.com\/vi\/silicones-gas-permeability\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kh\u1ea3 n\u0103ng th\u1ea5m kh\u00ed v\u00e0 h\u01a1i c\u1ee7a silicon<\/a> v\u1ec1 c\u01a1 ch\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 m\u1ed9t ngu\u1ed3n g\u1ed1c th\u1ee9 hai, ri\u00eang bi\u1ec7t: m\u1ed9t s\u1ea3n ph\u1ea9m m\u1edbi c\u00f3 m\u00f9i ri\u00eang h\u1ea7u nh\u01b0 lu\u00f4n c\u00f3 ngh\u0129a l\u00e0 silicone \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng peroxide \u0111\u00e3 b\u1ecf qua ho\u1eb7c r\u00fat ng\u1eafn qu\u00e1 tr\u00ecnh x\u1eed l\u00fd sau \u0111\u00fac. Silicone \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng b\u1ea1ch kim kh\u00f4ng c\u00f3 s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a ph\u1ea3n \u1ee9ng v\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng m\u00f9i khi m\u1edbi ra kh\u1ecfi khu\u00f4n. C\u00e1c lo\u1ea1i silicone \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng peroxide c\u00f3 ch\u1ee9a c\u00e1c ch\u1ea5t d\u1ec5 bay h\u01a1i c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd sau \u0111\u00fac \u0111\u00fang c\u00e1ch (th\u01b0\u1eddng l\u00e0 200\u00b0C trong kho\u1ea3ng 4 gi\u1edd) \u0111\u1ec3 lo\u1ea1i b\u1ecf. N\u1ebfu kh\u00e1ch h\u00e0ng b\u00e1o c\u00e1o c\u00f3 m\u00f9i tr\u00ean s\u1ea3n ph\u1ea9m... <a href=\"https:\/\/rysilicone.com\/vi\/food-grade-silicone\/\" target=\"_blank\" rel=\"noreferrer noopener\">ph\u1ea7n ti\u1ebfp x\u00fac v\u1edbi th\u1ef1c ph\u1ea9m<\/a>, H\u00e3y ki\u1ec3m tra h\u1ec7 th\u1ed1ng x\u1eed l\u00fd v\u00e0 h\u1ed3 s\u01a1 sau x\u1eed l\u00fd tr\u01b0\u1edbc khi \u0111\u1ed5 l\u1ed7i cho v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ea3ng t\u01b0\u01a1ng th\u00edch h\u00f3a h\u1ecdc c\u1ee7a silicon<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart.jpg\" alt=\"\" class=\"wp-image-16363\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-chemical-compatibility-rating-chart-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00f4ng s\u1ed1 d\u01b0\u1edbi \u0111\u00e2y d\u00e0nh cho VMQ \u0111a d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng, ti\u1ebfp x\u00fac gi\u00e1n \u0111o\u1ea1n. <strong>R<\/strong> = \u0110\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb (\u00edt ho\u1eb7c kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng), <strong>L<\/strong> = C\u00f3 gi\u1edbi h\u1ea1n (s\u1ef1 gia t\u0103ng c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c ho\u1eb7c thay \u0111\u1ed5i v\u1ec1 t\u00ednh ch\u1ea5t; s\u1eed d\u1ee5ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n), <strong>N<\/strong> = Kh\u00f4ng khuy\u1ebfn ngh\u1ecb (s\u01b0ng ph\u1ed3ng ho\u1eb7c h\u01b0 h\u1ecfng n\u1eb7ng). H\u00e3y xem \u0111\u00e2y l\u00e0 c\u00f4ng c\u1ee5 s\u00e0ng l\u1ecdc, kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea5y ch\u1ee9ng nh\u1eadn cu\u1ed1i c\u00f9ng \u2014 xem ph\u1ea7n ki\u1ec3m tra \u0111\u1ec3 bi\u1ebft l\u00fd do.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Trung b\u00ecnh<\/strong><\/th><th><strong>X\u1ebfp h\u1ea1ng VMQ<\/strong><\/th><th><strong>H\u00e0nh vi<\/strong><\/th><\/tr><\/thead><tbody><tr><td>N\u01b0\u1edbc (l\u1ea1nh)<\/td><td><strong>R<\/strong><\/td><td>\u1ed4n \u0111\u1ecbnh; gi\u1edbi h\u1ea1n ch\u00ednh l\u00e0 nhi\u1ec7t \u0111\u1ed9<\/td><\/tr><tr><td>N\u01b0\u1edbc n\u00f3ng \/ h\u01a1i n\u01b0\u1edbc \u2264100\u00b0C<\/td><td><strong>L<\/strong><\/td><td>Qu\u00e1 tr\u00ecnh th\u1ee7y ph\u00e2n di\u1ec5n ra ch\u1eadm khi ti\u1ebfp x\u00fac li\u00ean t\u1ee5c trong th\u1eddi gian d\u00e0i.<\/td><\/tr><tr><td>H\u01a1i n\u01b0\u1edbc qu\u00e1 nhi\u1ec7t &gt;120\u00b0C<\/td><td><strong>N<\/strong><\/td><td>S\u1ef1 ph\u00e2n c\u1eaft\/\u0111\u1ea3o ng\u01b0\u1ee3c chu\u1ed7i th\u1ee7y ph\u00e2n<\/td><\/tr><tr><td>Mu\u1ed1i \/ n\u01b0\u1edbc mu\u1ed1i, n\u01b0\u1edbc bi\u1ec3n<\/td><td><strong>R<\/strong><\/td><td>Tr\u01a1<\/td><\/tr><tr><td>Axit kho\u00e1ng lo\u00e3ng (&lt;10%)<\/td><td><strong>L<\/strong><\/td><td>Ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ea1nh; tr\u00e1nh n\u00f3ng ho\u1eb7c \u0111\u1ed3 u\u1ed1ng \u0111\u1eadm \u0111\u1eb7c.<\/td><\/tr><tr><td>Axit sulfuric\/axit nitric \u0111\u1eadm \u0111\u1eb7c<\/td><td><strong>N<\/strong><\/td><td>Suy tho\u00e1i x\u01b0\u01a1ng s\u1ed1ng<\/td><\/tr><tr><td>Axit axetic (lo\u00e3ng)<\/td><td><strong>L<\/strong><\/td><td>T\u00e1c d\u1ee5ng nh\u1eb9 c\u1ee7a c\u1ea3m l\u1ea1nh<\/td><\/tr><tr><td>Natri hydroxit (lo\u00e3ng)<\/td><td><strong>L<\/strong><\/td><td>OK l\u1ea1nh; ch\u1ea5t \u0103n m\u00f2n n\u00f3ng t\u1ea5n c\u00f4ng Si\u2013O<\/td><\/tr><tr><td>Ki\u1ec1m \u0111\u1eadm \u0111\u1eb7c \/ n\u00f3ng<\/td><td><strong>N<\/strong><\/td><td>S\u1ef1 ph\u00e2n h\u1ee7y do ch\u1ea5t \u0103n m\u00f2n<\/td><\/tr><tr><td>Dung d\u1ecbch amoniac<\/td><td><strong>L<\/strong><\/td><td>T\u00e1c d\u1ee5ng nh\u1eb9<\/td><\/tr><tr><td>Methanol \/ etanol \/ IPA<\/td><td><strong>R<\/strong><\/td><td>S\u01b0ng t\u1ea5y kh\u00f4ng \u0111\u00e1ng k\u1ec3<\/td><\/tr><tr><td>Ethylene glycol<\/td><td><strong>R<\/strong><\/td><td>Tr\u01a1<\/td><\/tr><tr><td>Glycerin<\/td><td><strong>R<\/strong><\/td><td>Tr\u01a1<\/td><\/tr><tr><td>Axeton<\/td><td><strong>L<\/strong><\/td><td>S\u01b0ng nh\u1eb9; ch\u1ec9 x\u1ea3y ra kh\u00f4ng th\u01b0\u1eddng xuy\u00ean.<\/td><\/tr><tr><td>MEK \/ etyl axetat<\/td><td><strong>L<\/strong><\/td><td>S\u01b0ng v\u1eeba ph\u1ea3i<\/td><\/tr><tr><td>Toluen \/ xylene \/ benzen<\/td><td><strong>N<\/strong><\/td><td>S\u01b0ng t\u1ea5y nghi\u00eam tr\u1ecdng (th\u01b0\u1eddng &gt;100% th\u1ec3 t\u00edch)<\/td><\/tr><tr><td>Cacbon tetraclorua \/ cloroform<\/td><td><strong>N<\/strong><\/td><td>S\u01b0ng nghi\u00eam tr\u1ecdng<\/td><\/tr><tr><td>D\u1ea7u kho\u00e1ng\/d\u1ea7u \u0111\u1ed9ng c\u01a1 (n\u00f3ng)<\/td><td><strong>N<\/strong><\/td><td>H\u00e3y s\u1eed d\u1ee5ng fluorosilicone thay th\u1ebf.<\/td><\/tr><tr><td>X\u0103ng d\u1ea7u<\/td><td><strong>N<\/strong><\/td><td>S\u00f3ng l\u1edbn; c\u1ea7n FVMQ<\/td><\/tr><tr><td>Nhi\u00ean li\u1ec7u diesel<\/td><td><strong>N<\/strong><\/td><td>S\u00f3ng l\u1edbn; c\u1ea7n FVMQ<\/td><\/tr><tr><td>D\u1ea7u th\u1ef1c v\u1eadt<\/td><td><strong>L<\/strong><\/td><td>N\u1edf ch\u1eadm; ph\u00f9 h\u1ee3p cho nhi\u1ec1u m\u1ee5c \u0111\u00edch ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m.<\/td><\/tr><tr><td>D\u1ea7u silicon<\/td><td><strong>N<\/strong><\/td><td>Ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 h\u00f2a tan ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 \u2014 n\u1edf ra<\/td><\/tr><tr><td>Ozone<\/td><td><strong>R<\/strong><\/td><td>G\u1ea7n nh\u01b0 t\u1ed1t nh\u1ea5t trong ph\u00e2n kh\u00fac<\/td><\/tr><tr><td>Hydrogen peroxide (pha lo\u00e3ng)<\/td><td><strong>L<\/strong><\/td><td>C\u00f3 th\u1ec3 pha lo\u00e3ng; tr\u00e1nh d\u00f9ng dung d\u1ecbch \u0111\u1eadm \u0111\u1eb7c.<\/td><\/tr><tr><td>Natri hypoclorit (thu\u1ed1c t\u1ea9y)<\/td><td><strong>L<\/strong><\/td><td>C\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c n\u1ed3ng \u0111\u1ed9 lo\u00e3ng; g\u00e2y \u0103n m\u00f2n b\u1ec1 m\u1eb7t khi \u1edf n\u1ed3ng \u0111\u1ed9 cao.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t \u0111\u01b0\u1ee3c ch\u1ee9ng minh nh\u01b0 th\u1ebf n\u00e0o tr\u00ean th\u1ef1c t\u1ebf?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1eef c\u00e1i tr\u00ean bi\u1ec3u \u0111\u1ed3 l\u00e0 gi\u1ea3 thuy\u1ebft ban \u0111\u1ea7u. Con s\u1ed1 quan tr\u1ecdng l\u00e0 m\u1ee9c t\u0103ng th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c \u0111o trong \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh. C\u00f3 hai ti\u00eau chu\u1ea9n chi ph\u1ed1i \u0111i\u1ec1u n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/store.astm.org\/standards\/d471\" target=\"_blank\" rel=\"noreferrer noopener nofollow\"><strong>ASTM D471<\/strong><\/a> \u2014 \u1ea2nh h\u01b0\u1edfng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00ean cao su. \u0110o l\u01b0\u1eddng s\u1ef1 thay \u0111\u1ed5i v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng, th\u1ec3 t\u00edch, \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i sau khi ng\u00e2m trong m\u1ed9t ch\u1ea5t l\u1ecfng c\u1ee5 th\u1ec3, \u1edf m\u1ed9t nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3, trong m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: 70 gi\u1edd \u1edf 23\u00b0C, 100\u00b0C ho\u1eb7c 150\u00b0C).<\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/79904.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\"><strong>ISO 1817<\/strong><\/a> \u2014 ph\u01b0\u01a1ng ph\u00e1p qu\u1ed1c t\u1ebf t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00ean cao su l\u01b0u h\u00f3a.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 \u0111\u1ea7u ra l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi trung th\u1ef1c: m\u1ed9t chi ti\u1ebft c\u00f3 th\u1ec3 cho th\u1ea5y th\u1ec3 t\u00edch +3% trong ch\u1ea5t l\u1ecfng \u1edf 23\u00b0C v\u00e0 +40% trong c\u00f9ng ch\u1ea5t l\u1ecfng \u0111\u00f3 \u1edf 100\u00b0C. C\u00f9ng m\u1ed9t v\u1eadt li\u1ec7u, c\u00f9ng m\u1ed9t th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, nh\u01b0ng k\u1ebft qu\u1ea3 l\u1ea1i tr\u00e1i ng\u01b0\u1ee3c. \u0110\u00e2y l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a t\u01b0 duy Ch\u1ebf \u0111\u1ed9 3 \u2014 r\u1ee7i ro kh\u00f4ng ph\u1ea3i l\u00e0 v\u1eadt li\u1ec7u k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng, m\u00e0 l\u00e0 vi\u1ec7c \u0111\u1ecdc ch\u1ec9 s\u1ed1 t\u01b0\u01a1ng th\u00edch m\u00e0 kh\u00f4ng k\u00e8m theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process.jpg\" alt=\"\" class=\"wp-image-16360\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/ASTM-D471-silicone-immersion-test-process-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1ec1 \u0111i\u1ec7n tr\u1edf c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c c\u1ea7n b\u1ed1n y\u1ebfu t\u1ed1: lo\u1ea1i ch\u1ea5t l\u1ecfng c\u1ee5 th\u1ec3 (v\u00e0 n\u1ed3ng \u0111\u1ed9), nhi\u1ec7t \u0111\u1ed9, th\u1eddi gian v\u00e0 li\u1ec7u ti\u1ebfp x\u00fac l\u00e0 gi\u00e1n \u0111o\u1ea1n hay ng\u00e2m li\u00ean t\u1ee5c. N\u1ebfu thi\u1ebfu nh\u1eefng y\u1ebfu t\u1ed1 \u0111\u00f3, &quot;silicone t\u01b0\u01a1ng th\u00edch&quot; kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u00e0 ch\u1ec9 l\u00e0 m\u1ed9t \u00fd ki\u1ebfn ch\u1ee7 quan.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ec sao c\u00e1c \u0111\u1ed9i l\u1ea1i \u0111\u00e1nh gi\u00e1 th\u1ea5p \u0111i\u1ec1u n\u00e0y?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean nh\u00e2n th\u1ea5t b\u1ea1i h\u1ea7u nh\u01b0 kh\u00f4ng bao gi\u1edd l\u00e0 do thi\u1ebfu n\u0103ng l\u1ef1c. \u0110\u00f3 l\u00e0 v\u00ec danh ti\u1ebfng c\u1ee7a silicone \u2013 tr\u01a1, an to\u00e0n th\u1ef1c ph\u1ea9m, ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft \u2013 ch\u1ec9 \u0111\u00fang trong \u0111i\u1ec1u ki\u1ec7n m\u00e0 m\u1ecdi ng\u01b0\u1eddi ti\u1ebfp x\u00fac l\u1ea7n \u0111\u1ea7u, n\u00ean n\u00f3 b\u1ecb kh\u00e1i qu\u00e1t h\u00f3a. M\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf \u0111\u00e3 th\u1ea5y silicone ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, n\u01b0\u1edbc v\u00e0 h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda s\u1ebd cho r\u1eb1ng n\u00f3 c\u0169ng s\u1ebd ch\u1ecbu \u0111\u01b0\u1ee3c d\u1ea7u h\u1ed9p s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea1m b\u1eaby th\u1ee9 hai l\u00e0 kho\u1ea3ng th\u1eddi gian th\u1eed nghi\u1ec7m. Vi\u1ec7c ki\u1ec3m tra tr\u00ean b\u00e0n th\u00ed nghi\u1ec7m di\u1ec5n ra \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u1edbi th\u1eddi gian ti\u1ebfp x\u00fac ng\u1eafn, ch\u00ednh x\u00e1c l\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00e0 s\u1ef1 gi\u00e3n n\u1edf di\u1ec5n ra nh\u1eb9 nh\u1ea5t. Trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, s\u1ef1 ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng di\u1ec5n ra \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n v\u00e0 li\u00ean t\u1ee5c h\u01a1n, v\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao s\u1ef1 thay \u0111\u1ed5i th\u1ec3 t\u00edch tr\u1edf n\u00ean phi tuy\u1ebfn t\u00ednh. Chi ti\u1ebft v\u01b0\u1ee3t qua ki\u1ec3m \u0111\u1ecbnh nh\u01b0ng l\u1ea1i h\u1ecfng trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, v\u00e0 v\u1ea5n \u0111\u1ec1 kh\u00f4ng n\u1eb1m \u1edf th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc m\u00e0 l\u00e0 \u1edf \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 ba l\u00e0 coi h\u00f3a h\u1ecdc qu\u00e1 tr\u00ecnh \u0111\u00f3ng r\u1eafn kh\u00f4ng li\u00ean quan \u0111\u1ebfn h\u00e0nh vi h\u00f3a h\u1ecdc. H\u1ec7 th\u1ed1ng \u0111\u00f3ng r\u1eafn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f9i, ch\u1ea5t chi\u1ebft xu\u1ea5t v\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 an to\u00e0n th\u1ef1c ph\u1ea9m\/y t\u1ebf c\u0169ng nhi\u1ec1u nh\u01b0 polyme c\u01a1 b\u1ea3n. M\u1ed9t b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c \u0111\u00f3ng r\u1eafn b\u1eb1ng peroxide v\u00e0 m\u1ed9t <a href=\"https:\/\/rysilicone.com\/vi\/curing-vs-vulcanization\/\">ph\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng b\u1ea1ch kim<\/a> C\u00f3 th\u1ec3 cho k\u1ebft qu\u1ea3 gi\u1ed1ng h\u1ec7t nhau tr\u00ean bi\u1ec3u \u0111\u1ed3 t\u01b0\u01a1ng th\u00edch chung nh\u01b0ng l\u1ea1i ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau trong b\u00e0i ki\u1ec3m tra chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart.jpg\" alt=\"\" class=\"wp-image-16361\" srcset=\"https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart.jpg 800w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart-300x169.jpg 300w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart-768x432.jpg 768w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart-18x10.jpg 18w, https:\/\/rysilicone.com\/wp-content\/uploads\/2024\/09\/Silicone-grade-selection-decision-flowchart-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng th\u1ee9 t\u00f4i c\u1ea7n tr\u01b0\u1edbc khi x\u00e1c nh\u1eadn \u0111i\u1ec3m s\u1ed1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fac cu\u1ed9c tr\u00f2 chuy\u1ec7n c\u1ea7n \u0111i v\u00e0o chi ti\u1ebft. Tr\u01b0\u1edbc khi t\u00f4i \u0111\u01b0a ra thang \u0111i\u1ec3m v\u00e0 h\u1ec7 th\u1ed1ng kh\u1eafc ph\u1ee5c, h\u00e3y g\u1eedi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ee5 th\u1ec3 l\u00e0 ch\u1ea5t h\u00f3a h\u1ecdc v\u00e0 n\u1ed3ng \u0111\u1ed9 c\u1ee7a n\u00f3 (kh\u00f4ng ph\u1ea3i &quot;dung m\u00f4i&quot; hay &quot;d\u1ea7u&quot;).<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i t\u1ea1i \u0111i\u1ec3m ti\u1ebfp x\u00fac<\/li>\n\n\n\n<li>Ch\u1ebf \u0111\u1ed9 ti\u1ebfp x\u00fac: lau\/t\u01b0\u1edbi gi\u00e1n \u0111o\u1ea1n so v\u1edbi ng\u00e2m li\u00ean t\u1ee5c, v\u00e0 t\u1ed5ng th\u1eddi gian s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li>M\u1ee5c ti\u00eau tu\u00e2n th\u1ee7 (n\u1ebfu c\u00f3)<a href=\"https:\/\/www.ecfr.gov\/current\/title-21\/chapter-I\/subchapter-B\/part-177\/subpart-C\/section-177.2600\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">FDA 21 CFR 177.2600<\/a>, <a href=\"https:\/\/www.bfr.bund.de\/en\/service\/databases\/bfr-recommendations-on-food-contact-materials\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">LFGB<\/a>, <a href=\"https:\/\/www.usp.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">USP L\u1edbp VI<\/a>)<\/li>\n\n\n\n<li>Li\u1ec7u t\u00ednh linh ho\u1ea1t \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p c\u00f3 quan tr\u1ecdng kh\u00f4ng, v\u00ec fluorosilicone ph\u1ea3i hy sinh m\u1ed9t ph\u1ea7n kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ea1nh \u0111\u1ec3 \u0111\u1ed5i l\u1ea5y kh\u1ea3 n\u0103ng ch\u1ed1ng d\u1ea7u?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi n\u0103m th\u00f4ng tin \u0111\u1ea7u v\u00e0o \u0111\u00f3, t\u00f4i c\u00f3 th\u1ec3 cho b\u1ea1n bi\u1ebft li\u1ec7u VMQ ti\u00eau chu\u1ea9n c\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u hay kh\u00f4ng, li\u1ec7u n\u00f3 c\u00f3 c\u1ea7n fluorosilicone hay kh\u00f4ng, ho\u1eb7c li\u1ec7u silicone c\u00f3 ph\u1ea3i l\u00e0 polyme n\u1ec1n kh\u00f4ng ph\u00f9 h\u1ee3p cho ch\u1ea5t l\u1ecfng \u0111\u00f3 hay kh\u00f4ng. N\u1ebfu kh\u00f4ng c\u00f3 ch\u00fang, b\u1ea5t k\u1ef3 \u0111\u00e1nh gi\u00e1 n\u00e0o t\u00f4i \u0111\u01b0a ra \u0111\u1ec1u ch\u1ec9 l\u00e0 ph\u1ecfng \u0111o\u00e1n \u0111\u01b0\u1ee3c ng\u1ee5y trang d\u01b0\u1edbi d\u1ea1ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Most teams spec silicone the way they pick a catalog part. They read &#8220;chemically inert,&#8221; assume it covers their fluid, and move on. The seal passes incoming inspection. It passes the first week in the field. Then it swells. A gasket that measured to print comes back from a customer 12% oversize, soft, and weeping. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16364,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1013],"tags":[],"class_list":["post-9991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-silicone-properties"],"_links":{"self":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts\/9991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/comments?post=9991"}],"version-history":[{"count":3,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts\/9991\/revisions"}],"predecessor-version":[{"id":16370,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts\/9991\/revisions\/16370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/media\/16364"}],"wp:attachment":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/media?parent=9991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/categories?post=9991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/tags?post=9991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}