{"id":674973,"date":"2024-10-13T21:06:22","date_gmt":"2024-10-13T20:06:22","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=674973"},"modified":"2024-10-13T21:06:22","modified_gmt":"2024-10-13T20:06:22","slug":"cach-polymer-dan-nhiet-phan-tan-nhiet-luong","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-polymer-dan-nhiet-phan-tan-nhiet-luong\/","title":{"rendered":"C\u00e1ch polymer d\u1eabn nhi\u1ec7t ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng"},"content":{"rendered":"<p class=\"sidekick\">C\u00e1ch polymer d\u1eabn nhi\u1ec7t ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng: T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf d\u1eabn nhi\u1ec7t c\u1ee7a polymer v\u00e0 c\u00e1ch ch\u00fang ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_polymer_dan_nhiet_phan_tan_nhiet_luong.png\" alt=\"C\u00e1ch polymer d\u1eabn nhi\u1ec7t ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch Polymer D\u1eabn Nhi\u1ec7t Ph\u00e2n T\u00e1n Nhi\u1ec7t L\u01b0\u1ee3ng<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, polymer ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n t\u00e1c \u0111\u1ed9ng nhi\u1ec7t. M\u1eb7c d\u00f9 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t cao nh\u01b0 kim lo\u1ea1i, polymer c\u00f3 r\u1ea5t nhi\u1ec1u t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t cho ph\u00e9p ch\u00fang ph\u00e2n t\u00e1n nhi\u1ec7t hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n<h2>L\u00fd Thuy\u1ebft D\u1eabn Nhi\u1ec7t C\u01a1 B\u1ea3n<\/h2>\n<p>D\u1eabn nhi\u1ec7t l\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t t\u1eeb v\u00f9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ebfn v\u00f9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n. C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n cho truy\u1ec1n nhi\u1ec7t l\u00e0:<\/p>\n<p><em>Q = k * A * \\frac{dT}{dx}<\/em><\/p>\n<ul>\n<li>Q: Nhi\u1ec7t l\u01b0\u1ee3ng truy\u1ec1n qua (W)<\/li>\n<li>k: H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t (W\/m\u00b7K)<\/li>\n<li>A: Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (m\u00b2)<\/li>\n<li>\\(\\frac{dT}{dx}\\): Gradient nhi\u1ec7t \u0111\u1ed9 (K\/m)<\/li>\n<\/ul>\n<h2>\u0110\u1eb7c \u0110i\u1ec3m V\u1eadt Li\u1ec7u Polymer<\/h2>\n<p>C\u00e1c polymer c\u00f3 m\u1ed9t c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p t\u1eeb c\u00e1c chu\u1ed7i ph\u00e2n t\u1eed d\u00e0i v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi nhi\u1ec1u t\u00ednh n\u0103ng \u0111\u1ed9c \u0111\u00e1o. M\u1ed9t s\u1ed1 polymer c\u00f3 th\u1ec3 ch\u1ee9a ph\u1ee5 gia ho\u1eb7c \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t. C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a polymer bao g\u1ed3m:<\/p>\n<ol>\n<li>\u0110\u1ed9 d\u00e0i v\u00e0 h\u01b0\u1edbng c\u00e1c chu\u1ed7i polymer: Chu\u1ed7i polymer d\u00e0i v\u00e0 th\u1eb3ng gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t.<\/li>\n<li>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c ph\u00e2n t\u1eed: Li\u00ean k\u1ebft m\u1ea1nh gi\u1eefa c\u00e1c ph\u00e2n t\u1eed polymer c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t.<\/li>\n<li>Ph\u1ee5 gia v\u00e0 ch\u1ea5t \u0111\u1ed9n: C\u00e1c ph\u1ee5 gia nh\u01b0 than ch\u00ec, h\u1ea1t nano ho\u1eb7c s\u1ee3i th\u1ee7y tinh c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a polymer.<\/li>\n<\/ol>\n<h2>\u1ee8ng D\u1ee5ng Polymer D\u1eabn Nhi\u1ec7t<\/h2>\n<p>Polymer d\u1eabn nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>\u0110i\u1ec7n t\u1eed:<\/strong> C\u00e1c v\u1ecf b\u1ecdc v\u00e0 t\u1ea5m t\u1ea3n nhi\u1ec7t trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><strong>\u00d4 t\u00f4:<\/strong> C\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9ng c\u01a1 v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t.<\/li>\n<li><strong>Y t\u1ebf:<\/strong> C\u00e1c thi\u1ebft b\u1ecb y t\u1ebf nh\u01b0 c\u1ea3m bi\u1ebfn v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt.<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Polymer d\u1eabn nhi\u1ec7t c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9 hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. V\u1edbi c\u00e1c t\u00ednh n\u0103ng \u0111\u1ed9c \u0111\u00e1o v\u00e0 kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh, c\u00e1c v\u1eadt li\u1ec7u polymer \u0111ang m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i m\u1edbi trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch polymer d\u1eabn nhi\u1ec7t ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng: T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf d\u1eabn nhi\u1ec7t c\u1ee7a polymer v\u00e0 c\u00e1ch ch\u00fang ph\u00e2n t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch polymer d\u1eabn nhi\u1ec7t ph\u00e2n t\u00e1n nhi\u1ec7t 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