Gulu la asayansi ochokera ku Massachusetts Institute of Technology akupitirizabe kugwira ntchito bwino m'njira yosangalatsa kwambiri. Zaka zisanu ndi zinayi zapitazo, m'magazini ya Nature Communications, ogwira ntchito ku MIT , yomwe inanena za chitukuko cha teknoloji yosangalatsa yowongola mamolekyu a polyethylene. M'malo ake abwinobwino, polyethylene, monga ma polima ena, amawoneka ngati chipwirikiti chamagulu ambiri a spaghetti omwe alumikizidwa. Izi zimapangitsa polima kukhala chothandizira kwambiri kutentha, ndipo asayansi akhala akufuna chinthu chachilendo. Zikanakhala bwino tikanapanga polima yomwe sichitha kutentha kwambiri kuposa zitsulo! Ndipo zonse zomwe zimafunikira pa izi ndikuwongola mamolekyu a polima kuti athe kusamutsa kutentha kudzera m'ma monochannels kuchokera kugwero kupita kumalo otayira. Kuyeserako kunali kopambana. Asayansi adatha kupanga ulusi wina wa polyethylene wokhala ndi matenthedwe abwino kwambiri. Koma izi sizinali zokwanira kuti tiyambitse makampani.
Masiku ano, gulu lomwelo la asayansi ochokera ku MIT lidasindikiza lipoti latsopano lokhudza ma polima amphamvu kwambiri. Ntchito zambiri zachitika mβzaka zisanu ndi zinayi zapitazi. M'malo mopanga ulusi pawokha, asayansi chomera choyendetsa kuti apange zokutira filimu za thermally conductive. Komanso, popanga mafilimu opangira kutentha, osati zida zapadera zomwe zidagwiritsidwa ntchito, monga zaka zisanu ndi zinayi zapitazo, koma ufa wamba wa polyethylene wamafakitale.
Pachomera choyendetsa, ufa wa polyethylene umasungunuka mumadzimadzi kenako ndikupopera pa mbale yoziziritsidwa ndi nayitrogeni wamadzimadzi. Zitatha izi, workpiece imatenthedwa ndikutambasulidwa pamakina opukutira mpaka filimu yopyapyala, makulidwe a filimu yokulunga. Miyezo yasonyeza kuti filimu ya polyethylene yotentha kwambiri yomwe imapangidwa motere imakhala ndi mphamvu yotentha ya 60 W/(m K). Poyerekeza, pazitsulo chiwerengerochi ndi 15 W / (m K), ndipo pulasitiki wamba ndi 0,1-0,5 W / (m K). Daimondi imadzitamandira bwino kwambiri matenthedwe matenthedwe - 2000 W/(m K), koma kupitilira zitsulo pamatenthedwe matenthedwe ndikwabwino.
Thermally conductive polima ilinso ndi zina zingapo zofunika. Choncho, kutentha kumayendetsedwa mosamalitsa mbali imodzi. Tangoganizani laputopu kapena foni yam'manja yomwe imachotsa kutentha kwa mapurosesa popanda makina oziziritsa. Ntchito zina zofunika za pulasitiki yotentha kwambiri ndi magalimoto, mafiriji, ndi zina zambiri. Pulasitiki saopa dzimbiri, sayendetsa magetsi, ndi opepuka komanso okhazikika. Kuyambitsidwa kwa zinthu zoterezi m'moyo kungapereke chilimbikitso ku chitukuko cha mafakitale m'magawo ambiri. Ndikanakonda kuti ndisadikire zaka zina zisanu ndi zinayi za tsiku lowalali.
Source: 3dnews.ru