{"id":693658,"date":"2024-09-10T17:59:39","date_gmt":"2024-09-10T16:59:39","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=693658"},"modified":"2024-09-10T17:59:39","modified_gmt":"2024-09-10T16:59:39","slug":"bot-polyisocyanurate-gia-tri-r-cao-cach-nhiet-hieu-qua","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/bot-polyisocyanurate-gia-tri-r-cao-cach-nhiet-hieu-qua\/","title":{"rendered":"B\u1ecdt Polyisocyanurate | Gi\u00e1 tr\u1ecb R cao, C\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3"},"content":{"rendered":"<p class=\"sidekick\">B\u1ecdt Polyisocyanurate: V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3 v\u1edbi gi\u00e1 tr\u1ecb R cao, gi\u1eef nhi\u1ec7t t\u1ed1t, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i 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\/bot_polyisocyanurate_gia_tri_r_cao_cach_nhiet_hieu_qua.png\" alt=\"B\u1ecdt Polyisocyanurate | Gi\u00e1 tr\u1ecb R cao, C\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>B\u1ecdt Polyisocyanurate | Gi\u00e1 tr\u1ecb R cao, C\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3<\/h2>\n<p>B\u1ecdt polyisocyanurate, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi t\u1eaft l\u00e0 PIR hay Polyiso, l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng x\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng nghi\u1ec7p. V\u1eadt li\u1ec7u n\u00e0y n\u1ed5i ti\u1ebfng v\u1edbi gi\u00e1 tr\u1ecb R cao, \u0111\u1ed3ng ngh\u0129a v\u1edbi kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i, gi\u00fap gi\u1ea3m ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c t\u00f2a nh\u00e0 v\u00e0 h\u1ec7 th\u1ed1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00e1c.<\/p>\n<h2>Gi\u00e1 tr\u1ecb R l\u00e0 g\u00ec?<\/h2>\n<p><b>Gi\u00e1 tr\u1ecb R<\/b> l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u. N\u00f3 bi\u1ec3u th\u1ecb m\u1ee9c \u0111\u1ed9 c\u1ea3n tr\u1edf d\u00f2ng nhi\u1ec7t qua m\u1ed9t v\u00f9ng di\u1ec7n t\u00edch c\u1ee7a v\u1eadt li\u1ec7u \u0111\u00f3. C\u00f4ng th\u1ee9c t\u00ednh gi\u00e1 tr\u1ecb R l\u00e0:<\/p>\n<p>R = \\(\\frac{\u0394T}{q}\\)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>R l\u00e0 gi\u00e1 tr\u1ecb c\u00e1ch nhi\u1ec7t<\/li>\n<li>\u0394T l\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa hai m\u1eb7t v\u1eadt li\u1ec7u<\/li>\n<li>q l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t truy\u1ec1n qua v\u1eadt li\u1ec7u<\/li>\n<\/ul>\n<h2>T\u1ea1i sao b\u1ecdt Polyisocyanurate c\u00f3 gi\u00e1 tr\u1ecb R cao?<\/h2>\n<p>B\u1ecdt polyisocyanurate c\u00f3 gi\u00e1 tr\u1ecb R cao nh\u1edd c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3. C\u1ea5u tr\u00fac n\u00e0y cho ph\u00e9p n\u00f3 ch\u1ee9a nhi\u1ec1u kh\u00ed trapped (kh\u00f3a) b\u00ean trong, l\u00e0m gi\u1ea3m thi\u1ec3u s\u1ef1 d\u1eabn nhi\u1ec7t qua v\u1eadt li\u1ec7u. Trong th\u1ef1c t\u1ebf, Polyiso th\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb R t\u1eeb 5,6 \u0111\u1ebfn 8,0 tr\u00ean m\u1ed7i inch \u0111\u1ed9 d\u00e0y, cao h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t kh\u00e1c nh\u01b0 s\u1ee3i th\u1ee7y tinh hay cellulose.<\/p>\n<h2>\u01afu \u0111i\u1ec3m c\u1ee7a b\u1ecdt Polyisocyanurate<\/h2>\n<ul>\n<li><b>Hi\u1ec7u su\u1ea5t nhi\u1ec7t cao:<\/b> Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp, gi\u00e1 tr\u1ecb R cao gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t c\u1ee7a Polyiso.<\/li>\n<li><b>Tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9:<\/b> Polyiso nh\u1eb9 h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t kh\u00e1c, d\u1ec5 d\u00e0ng v\u1eadn chuy\u1ec3n v\u00e0 thi c\u00f4ng.<\/li>\n<li><b>Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y:<\/b> Polyiso th\u01b0\u1eddng ch\u1ee9a c\u00e1c ch\u1ea5t ch\u1ed1ng ch\u00e1y, gi\u00fap l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh lan truy\u1ec1n c\u1ee7a l\u1eeda.<\/li>\n<li><b>\u0110\u1ed9 b\u1ec1n cao:<\/b> V\u1eadt li\u1ec7u n\u00e0y c\u1ef1c k\u1ef3 b\u1ec1n, ch\u1ed1ng l\u1ea1i s\u1ef1 ph\u00e2n r\u00e3 v\u00e0 t\u1ed5n h\u1ea1i t\u1eeb c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<\/ul>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n<p>B\u1ecdt polyisocyanurate th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c sau:<\/p>\n<ol>\n<li><b>X\u00e2y d\u1ef1ng t\u01b0\u1eddng v\u00e0 m\u00e1i nh\u00e0:<\/b> S\u1eed d\u1ee5ng trong t\u01b0\u1eddng v\u00e0 m\u00e1i \u0111\u1ec3 cung c\u1ea5p l\u1edbp c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng HVAC:<\/b> S\u1eed d\u1ee5ng trong \u1ed1ng d\u1eabn v\u00e0 c\u00e1c thi\u1ebft b\u1ecb HVAC \u0111\u1ec3 ng\u0103n ng\u1eeba m\u1ea5t nhi\u1ec7t v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><b>Ng\u00e0nh c\u00f4ng nghi\u1ec7p l\u1ea1nh:<\/b> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef v\u00e0 b\u1ea3o qu\u1ea3n l\u1ea1nh \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/li>\n<\/ol>\n<p>Nh\u1edd v\u00e0o nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3, b\u1ecdt polyisocyanurate \u0111ang d\u1ea7n tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong c\u00e1c gi\u1ea3i ph\u00e1p c\u00e1ch nhi\u1ec7t hi\u1ec7n nay.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ecdt Polyisocyanurate: V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3 v\u1edbi gi\u00e1 tr\u1ecb R cao, gi\u1eef nhi\u1ec7t t\u1ed1t, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i 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>B\u1ecdt Polyisocyanurate | Gi\u00e1 tr\u1ecb R cao, C\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3<\/title>\n<meta name=\"description\" content=\"B\u1ecdt Polyisocyanurate: V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3 v\u1edbi gi\u00e1 tr\u1ecb R cao, gi\u1eef nhi\u1ec7t t\u1ed1t, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u00e2y d\u1ef1ng v\u00e0 c\u00f4ng nghi\u1ec7p.\" \/>\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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