{"id":32845,"date":"2019-10-31T21:49:15","date_gmt":"2019-10-31T18:49:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej\/"},"modified":"2019-10-31T21:49:15","modified_gmt":"2019-10-31T18:49:15","slug":"radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej","title":{"rendered":"Les radiateurs pour processeurs pourraient devenir en plastique et ce n'est pas une conspiration des fabricants","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Un groupe de chercheurs du Massachusetts Institute of Technology continue de travailler avec succ\u00e8s dans un domaine tr\u00e8s int\u00e9ressant. Il y a neuf ans, dans la revue Nature Communications, les employ\u00e9s du MIT <noindex><\/a>ont publi\u00e9 un rapport<\/a><\/noindex>, dans lequel ils ont fait \u00e9tat d'une technologie intrigante pour d\u00e9plier les mol\u00e9cules de poly\u00e9thyl\u00e8ne. Dans son \u00e9tat normal, le poly\u00e9thyl\u00e8ne, comme d'autres polym\u00e8res, ressemble \u00e0 une bouillie compos\u00e9e de nombreux amas de spaghettis coll\u00e9s. Cela fait du polym\u00e8re un excellent isolant thermique, mais les scientifiques ont toujours voulu quelque chose d'inhabituel. Que diriez-vous de cr\u00e9er un polym\u00e8re capable de conduire la chaleur aussi bien que les m\u00e9taux ? Et il ne faut pas grand-chose pour cela : d\u00e9plier les mol\u00e9cules du polym\u00e8re afin qu'elles puissent transporter la chaleur \u00e0 travers des monocanaux de la source jusqu'\u00e0 l'endroit o\u00f9 elle est dispers\u00e9e. L'exp\u00e9rience a r\u00e9ussi. Les chercheurs ont pu cr\u00e9er des fibres individuelles de poly\u00e9thyl\u00e8ne avec une excellente conductivit\u00e9 thermique. Mais pour une application industrielle, cela \u00e9tait insuffisant.<\/p>\n<p><img decoding=\"async\" alt=\"Les radiateurs pour processeurs pourraient devenir en plastique et ce n&#039;est pas une conspiration des fabricants\" src=\"\/wp-content\/uploads\/2019\/05\/7c3ae585ced639a710913d3fd8e9698d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Aujourd'hui, le m\u00eame groupe de chercheurs du MIT a publi\u00e9 un nouveau rapport sur les polym\u00e8res thermoconducteurs. Au cours des neuf derni\u00e8res ann\u00e9es, un travail consid\u00e9rable a \u00e9t\u00e9 r\u00e9alis\u00e9. Au lieu de fabriquer des fibres individuelles, les scientifiques <noindex><\/a>ont d\u00e9velopp\u00e9 et cr\u00e9\u00e9<\/a><\/noindex> une installation exp\u00e9rimentale pour fabriquer un rev\u00eatement thermoconducteur en film. De plus, pour la cr\u00e9ation de films thermoconducteurs, ils ont utilis\u00e9 non pas une mati\u00e8re premi\u00e8re unique, comme il y a neuf ans, mais du poly\u00e9thyl\u00e8ne en poudre commercial ordinaire pour l'industrie.<\/p>\n<p>Dans une installation exp\u00e9rimentale, la poudre de poly\u00e9thyl\u00e8ne se dissout dans un liquide, puis le m\u00e9lange est pulv\u00e9ris\u00e9 sur une plaque refroidie \u00e0 l'azote liquide. Apr\u00e8s cela, le pr\u00e9formage est chauff\u00e9 et \u00e9tir\u00e9 sur une machine de laminoir jusqu'\u00e0 obtenir un film fin, de l'\u00e9paisseur d'un mat\u00e9riau d'emballage. Des mesures ont montr\u00e9 que le film en poly\u00e9thyl\u00e8ne conducteur de chaleur fabriqu\u00e9 de cette mani\u00e8re poss\u00e8de un coefficient de conductivit\u00e9 thermique de 60 W\/(m\u00b7K). En comparaison, pour l'acier, ce chiffre est de 15 W\/(m\u00b7K), et pour un plastique ordinaire, il est de 0,1 \u00e0 0,5 W\/(m\u00b7K). Le diamant se vante de la meilleure conductivit\u00e9 thermique, avec 2000 W\/(m\u00b7K), mais surpasser les m\u00e9taux en conductivit\u00e9 thermique est d\u00e9j\u00e0 un bon r\u00e9sultat.<\/p>\n<p><center><\/center><\/p>\n<p>Le polym\u00e8re thermoconducteur poss\u00e8de \u00e9galement plusieurs autres qualit\u00e9s importantes. La chaleur est transf\u00e9r\u00e9e dans une seule direction. Imaginez un ordinateur portable ou un smartphone qui dissipe la chaleur des processeurs sans syst\u00e8me de refroidissement actif. D'autres domaines d'application importants pour le plastique thermoconducteur incluent les automobiles, les syst\u00e8mes de r\u00e9frig\u00e9ration, etc. Le plastique est r\u00e9sistant \u00e0 la corrosion, non conducteur d'\u00e9lectricit\u00e9, l\u00e9ger et durable. L'introduction de tels mat\u00e9riaux dans la vie quotidienne pourrait donner un coup d'acc\u00e9l\u00e9rateur au d\u00e9veloppement de l'industrie dans de nombreux secteurs. Nous esp\u00e9rons que ce jour lumineux n'aura pas \u00e0 \u00eatre attendu encore neuf ans.<\/p>\n<p><center><\/p>\n<p><\/center><\/p>\n<p>\t\t\t\t<center><br \/>\n\t\t\t\t\t\t\t\t<\/center><br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/3dnews.ru\/986734\">3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0413\u0440\u0443\u043f\u043f\u0430 \u0443\u0447\u0451\u043d\u044b\u0445 \u0438\u0437 \u041c\u0430\u0441\u0441\u0430\u0447\u0443\u0441\u0435\u0442\u0441\u043a\u043e\u0433\u043e \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442\u0430 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0443\u0441\u043f\u0435\u0448\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0432 \u043e\u0447\u0435\u043d\u044c \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u043c \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0438. \u0414\u0435\u0432\u044f\u0442\u044c \u043b\u0435\u0442 \u043d\u0430\u0437\u0430\u0434 \u0432 \u0436\u0443\u0440\u043d\u0430\u043b\u0435 Nature Communications \u0441\u043e\u0442\u0440\u0443\u0434\u043d\u0438\u043a\u0438 MIT \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0434\u043e\u043a\u043b\u0430\u0434, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 \u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043f\u043e \u0440\u0430\u0441\u043f\u0440\u044f\u043c\u043b\u0435\u043d\u0438\u044e \u043c\u043e\u043b\u0435\u043a\u0443\u043b \u043f\u043e\u043b\u0438\u044d\u0442\u0438\u043b\u0435\u043d\u0430. \u0412 \u043e\u0431\u044b\u0447\u043d\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u043f\u043e\u043b\u0438\u044d\u0442\u0438\u043b\u0435\u043d, \u043a\u0430\u043a \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u043f\u043e\u043b\u0438\u043c\u0435\u0440\u044b, \u043f\u043e\u0445\u043e\u0436 \u043d\u0430 \u043a\u0430\u0448\u0443 \u0438\u0437 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430 \u043a\u043e\u043c\u043a\u043e\u0432 \u0441\u043b\u0438\u043f\u0448\u0438\u0445\u0441\u044f \u0441\u043f\u0430\u0433\u0435\u0442\u0442\u0438. \u042d\u0442\u043e \u0434\u0435\u043b\u0430\u0435\u0442 \u043f\u043e\u043b\u0438\u043c\u0435\u0440 \u043e\u0442\u043b\u0438\u0447\u043d\u044b\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-32845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0413\u0440\u0443\u043f\u043f\u0430 \u0443\u0447\u0451\u043d\u044b\u0445 \u0438\u0437 \u041c\u0430\u0441\u0441\u0430\u0447\u0443\u0441\u0435\u0442\u0441\u043a\u043e\u0433\u043e \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442\u0430 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0443\u0441\u043f\u0435\u0448\u043d\u043e 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