{"id":693196,"date":"2024-10-30T12:42:52","date_gmt":"2024-10-30T11:42:52","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=693196"},"modified":"2024-10-30T12:42:52","modified_gmt":"2024-10-30T11:42:52","slug":"silica-aerogel-vat-lieu-sieu-nhe-cach-nhiet-tuyet-voi","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/silica-aerogel-vat-lieu-sieu-nhe-cach-nhiet-tuyet-voi\/","title":{"rendered":"Silica Aerogel | V\u1eadt Li\u1ec7u Si\u00eau Nh\u1eb9, C\u00e1ch Nhi\u1ec7t Tuy\u1ec7t V\u1eddi"},"content":{"rendered":"<p class=\"sidekick\">Silica Aerogel | V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t si\u00eau nh\u1eb9 v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t tuy\u1ec7t v\u1eddi, gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 trong x\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/silica_aerogel_vat_lieu_sieu_nhe_cach_nhiet_tuyet_voi.png\" alt=\"Silica Aerogel | V\u1eadt Li\u1ec7u Si\u00eau Nh\u1eb9, C\u00e1ch Nhi\u1ec7t Tuy\u1ec7t V\u1eddi\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Silica Aerogel | V\u1eadt Li\u1ec7u Si\u00eau Nh\u1eb9, C\u00e1ch Nhi\u1ec7t Tuy\u1ec7t V\u1eddi<\/h2>\n<p>Silica aerogel l\u00e0 m\u1ed9t trong nh\u1eefng v\u1eadt li\u1ec7u nh\u1eb9 nh\u1ea5t v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t h\u00e0ng \u0111\u1ea7u hi\u1ec7n nay. \u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi bi\u1ec7t danh &#8220;kh\u00f3i r\u1eafn&#8221; (solid smoke), silica aerogel c\u00f3 c\u1ea5u tr\u00fac c\u1ef1c k\u1ef3 nh\u1eb9 v\u00e0 r\u1ed7ng, chi\u1ebfm \u0111\u1ebfn 99,8% kh\u00f4ng kh\u00ed theo tr\u1ecdng l\u01b0\u1ee3ng.<\/p>\n<h2>C\u1ea5u Tr\u00fac v\u00e0 T\u00ednh Ch\u1ea5t<\/h2>\n<p>Silica aerogel \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf pha l\u1ecfng ra kh\u1ecfi gel silic th\u00f4ng qua quy tr\u00ecnh s\u1ea5y kh\u00f4 si\u00eau t\u1edbi h\u1ea1n. K\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi silica c\u1ea5u tr\u00fac x\u1ed1p v\u1edbi c\u00e1c l\u1ed7 h\u1ed5ng r\u1ea5t nh\u1ecf, cho ph\u00e9p n\u00f3 gi\u1eef l\u1ea1i kh\u00f4ng kh\u00ed m\u00e0 v\u1eabn c\u1ef1c k\u1ef3 nh\u1eb9.<\/p>\n<ul>\n<li>Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ef1c th\u1ea5p: kho\u1ea3ng 1-15 kg\/m<sup>3<\/sup>.<\/li>\n<li>\u0110\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p: kho\u1ea3ng 0,013 W\/(m\u00b7K).<\/li>\n<li>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, l\u00ean \u0111\u1ebfn 1200\u00b0C.<\/li>\n<li>Trong su\u1ed1t ho\u1eb7c m\u1edd \u0111\u1ee5c, t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5u tr\u00fac.<\/li>\n<\/ul>\n<h2>\u1ee8ng D\u1ee5ng<\/h2>\n<p>Nh\u1edd v\u00e0o nh\u1eefng \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t, silica aerogel \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/p>\n<ol>\n<li><strong>C\u00e1ch nhi\u1ec7t:<\/strong> Do c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p, silica aerogel l\u00e0 v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trong x\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng nghi\u1ec7p, nh\u01b0 c\u00e1ch nhi\u1ec7t \u0111\u01b0\u1eddng \u1ed1ng, l\u00f2 luy\u1ec7n, hay nh\u1eefng n\u01a1i c\u1ea7n b\u1ea3o qu\u1ea3n nhi\u1ec7t.<\/li>\n<li><strong>Kh\u00f4ng gian:<\/strong> NASA \u0111\u00e3 s\u1eed d\u1ee5ng silica aerogel \u0111\u1ec3 c\u00e1ch nhi\u1ec7t trong c\u00e1c t\u00e0u v\u0169 tr\u1ee5 v\u00e0 rover kh\u1ea3o s\u00e1t Mars nh\u1edd kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9.<\/li>\n<li><strong>Y t\u1ebf:<\/strong> Silica aerogel c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c l\u1edbp ph\u1ee7 b\u0103ng y t\u1ebf \u0111\u1ec3 gi\u1eef nhi\u1ec7t v\u00e0 b\u1ea3o v\u1ec7 v\u1ebft th\u01b0\u01a1ng kh\u1ecfi nhi\u1ec5m tr\u00f9ng.<\/li>\n<li><strong>\u0110i\u1ec7n t\u1eed:<\/strong> B\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u1ecfi nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<\/ol>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Silica aerogel l\u00e0 m\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh v\u1ec1 s\u1ef1 ti\u1ebfn b\u1ed9 trong khoa h\u1ecdc v\u1eadt li\u1ec7u, k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 c\u00e1ch nhi\u1ec7t t\u1ed1t. V\u1edbi ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng, silica aerogel h\u1ee9a h\u1eb9n s\u1ebd ti\u1ebfp t\u1ee5c c\u00f3 nh\u1eefng \u0111\u00f3ng g\u00f3p quan tr\u1ecdng v\u00e0o nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau c\u1ee7a \u0111\u1eddi s\u1ed1ng v\u00e0 c\u00f4ng ngh\u1ec7.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Silica Aerogel | V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t si\u00eau nh\u1eb9 v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t tuy\u1ec7t v\u1eddi, gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 trong x\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/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>Silica Aerogel | V\u1eadt Li\u1ec7u 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