{"id":703461,"date":"2024-10-01T09:17:12","date_gmt":"2024-10-01T08:17:12","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=703461"},"modified":"2024-10-01T09:17:12","modified_gmt":"2024-10-01T08:17:12","slug":"cai-thien-do-dan-nhiet-trong-vat-lieu-tong-hop","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cai-thien-do-dan-nhiet-trong-vat-lieu-tong-hop\/","title":{"rendered":"C\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p"},"content":{"rendered":"<p class=\"sidekick\">C\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 gia d\u1ee5ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cai_thien_do_dan_nhiet_trong_vat_lieu_tong_hop.png\" alt=\"C\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u1ea3i Thi\u1ec7n \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Trong V\u1eadt Li\u1ec7u T\u1ed5ng H\u1ee3p<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t. \u0110\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p, vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u00f3 th\u1ec3 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch \u0111\u00e1ng k\u1ec3, bao g\u1ed3m t\u0103ng c\u01b0\u1eddng s\u1ef1 ph\u00e2n t\u00e1n nhi\u1ec7t v\u00e0 gi\u1ea3m thi\u1ec3u ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<h2>C\u00e1c Y\u1ebfu T\u1ed1 \u1ea2nh H\u01b0\u1edfng \u0110\u1ebfn \u0110\u1ed9 D\u1eabn Nhi\u1ec7t<\/h2>\n<p>\u0110\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<p><u1><\/p>\n<li><b>Th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u:<\/b> S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u kh\u00e1c nhau c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c c\u1ea5u tr\u00fac c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n. V\u00ed d\u1ee5, vi\u1ec7c th\u00eam c\u00e1c h\u1ea1t d\u1eabn nhi\u1ec7t nh\u01b0 h\u1ea1t graphene hay carbon nanotubes v\u00e0o trong nh\u1ef1a c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p.<\/li>\n<li><b>C\u1ea5u tr\u00fac pha:<\/b> C\u00e1c v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p c\u00f3 c\u1ea5u tr\u00fac pha t\u1ed1t h\u01a1n th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n. S\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ec1u c\u00e1c pha d\u1eabn nhi\u1ec7t trong n\u1ec1n v\u1eadt li\u1ec7u gi\u00fap c\u1ea3i thi\u1ec7n s\u1ef1 truy\u1ec1n nhi\u1ec7t.<\/li>\n<li><b>Li\u00ean k\u1ebft nhi\u1ec7t gi\u1eefa c\u00e1c pha:<\/b> M\u1ed1i li\u00ean k\u1ebft t\u1ed1t gi\u1eefa c\u00e1c pha d\u1eabn nhi\u1ec7t v\u00e0 n\u1ec1n v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u tr\u1edf kh\u00e1ng nhi\u1ec7t, t\u1eeb \u0111\u00f3 t\u0103ng \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p.<\/li>\n<p><\/u1><\/p>\n<h2>Ph\u01b0\u01a1ng Ph\u00e1p C\u1ea3i Thi\u1ec7n \u0110\u1ed9 D\u1eabn Nhi\u1ec7t<\/h2>\n<p>C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn:<\/p>\n<p><o1><\/p>\n<li><b>Ph\u1ee7 b\u1ec1 m\u1eb7t:<\/b> Vi\u1ec7c ph\u1ee7 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t d\u1eabn nhi\u1ec7t b\u1eb1ng c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh \u0111\u1ed3ng nh\u1ea5t v\u00e0 ph\u00e2n t\u00e1n c\u1ee7a h\u1ea1t trong n\u1ec1n, t\u1eeb \u0111\u00f3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1eabn nhi\u1ec7t.<\/li>\n<li><b>S\u1eed d\u1ee5ng ch\u1ea5t ph\u1ee5 gia d\u1eabn nhi\u1ec7t:<\/b> Th\u00eam c\u00e1c ch\u1ea5t ph\u1ee5 gia c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t cao nh\u01b0 graphene, carbon nanotubes v\u00e0 boron nitride c\u00f3 th\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<li><b>Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac:<\/b> Thi\u1ebft k\u1ebf c\u00e1c c\u1ea5u tr\u00fac m\u00e0ng m\u1ecfng ho\u1eb7c c\u1ea5u tr\u00fac nano c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u00f4ng qua vi\u1ec7c ki\u1ec3m so\u00e1t v\u00e0 t\u1ed1i \u01b0u h\u00f3a k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c pha d\u1eabn nhi\u1ec7t.<\/li>\n<p><\/o1><\/p>\n<h2>V\u00ed D\u1ee5 Th\u1ef1c Ti\u1ec5n<\/h2>\n<p>M\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh v\u1ec1 vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c h\u1ea1t nano graphene trong n\u1ec1n polymer. Theo nghi\u00ean c\u1ee9u, th\u00eam m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf (kho\u1ea3ng 1-2%) h\u1ea1t nano graphene v\u00e0o n\u1ec1n polymer c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u l\u00ean \u0111\u1ebfn 50%. K\u1ebft qu\u1ea3 n\u00e0y l\u00e0m gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 pin n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c \u0111\u1ea7y ti\u1ec1m n\u0103ng v\u00e0 quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u d\u1eabn nhi\u1ec7t cao v\u00e0 \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ea3i thi\u1ec7n ph\u00f9 h\u1ee3p, ch\u00fang ta c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i m\u1edbi trong vi\u1ec7c \u1ee9ng d\u1ee5ng v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p v\u00e0o c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 gia d\u1ee5ng.<\/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\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p<\/title>\n<meta name=\"description\" content=\"C\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn nhi\u1ec7t trong v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 gia d\u1ee5ng.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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