Iqela lezazinzulu ezivela kwiMassachusetts Institute of Technology liyaqhubeka nokusebenza ngempumelelo kwindlela enomdla kakhulu. Kwiminyaka elithoba eyadlulayo, kwijenali yoNxibelelwano lweNdalo, abasebenzi beMIT , eyabika ngokuphuhliswa kweteknoloji enomdla yokulungelelanisa iimolekyuli ze-polyethylene. Kwimeko yayo yesiqhelo, ipolyethylene, njengezinye iipholima, ikhangeleka ngathi yingxubakaxaka yamagaqa amaninzi espaghetti abambeneyo. Oku kwenza i-polymer ibe yi-insulator yokushisa ebalaseleyo, kwaye izazinzulu bezisoloko zifuna into engaqhelekanga. Ukuba nje besinokwenza ipholima engakwazi ukuqhuba ubushushu obungekho mbi kuneentsimbi! Kwaye konke okufunekayo kule nto kukulungelelanisa iimolekyuli zepolymer ukwenzela ukuba zikwazi ukuhambisa ubushushu ngokusebenzisa i-monochannels ukusuka kumthombo ukuya kwindawo yokulahla. Uvavanyo lwaba yimpumelelo. Iingcali zenzululwazi ziye zakwazi ukwenza imicu ye-polyethylene nganye kunye ne-thermal conductivity egqwesileyo. Kodwa oku kwakunganelanga ukuqaliswa kwishishini.
Namhlanje, iqela elifanayo lezenzululwazi ezivela kwi-MIT lipapashe ingxelo entsha malunga neepolymers ze-thermal conductive. Mninzi umsebenzi owenziweyo kule minyaka isithoba idlulileyo. Endaweni yokwenza imicu yodwa, izazinzulu isityalo esilingwayo sokuvelisa ukutyabeka kwefilimu eqhuba i-thermal. Ngaphezu koko, ukwenza iifilimu eziqhuba ukushisa, kungekhona izinto ezinqabileyo ezisetyenzisiweyo, njengeminyaka elithoba edlulileyo, kodwa i-polyethylene eqhelekileyo yokuthengisa umgubo kwishishini.
Kwisityalo esilingwayo, umgubo we-polyethylene unyibilikiswa kulwelo kwaye ukwakheka kutshizwe kwipleyiti epholile ngenitrogen engamanzi. Emva koko, i-workpiece ishushu kwaye yolulwe kumatshini ojikelezayo ukuya kwimeko yefilimu encinci, ubukhulu befilimu yokugubungela. Imilinganiselo ibonise ukuba ifilimu ye-polyethylene ye-thermal conductive eveliswe ngale ndlela ine-coefficient ye-thermal conductivity ye-60 W / (m K). Ukuthelekisa, ngentsimbi lo mfanekiso ngu-15 W / (m K), kunye neplastiki eqhelekileyo ngu-0,1-0,5 W / (m K). Idayimani iqhayisa eyona conductivity ye-thermal - 2000 W / (m K), kodwa iintsimbi ezigqwesileyo kwi-thermal conductivity nazo zilungile.
Ipolymer eqhuba i-thermal nayo inenani lezinye iimpawu ezibalulekileyo. Ngoko, ubushushu buqhutywa ngokungqongqo kwicala elinye. Yiba nomfanekiso welaptop okanye i-smartphone esusa ubushushu kwiiprosesa ngaphandle kwenkqubo esebenzayo yokupholisa. Ezinye izicelo ezibalulekileyo zeplastiki ye-thermal conductive ziquka iimoto, iiyunithi zefriji, kunye nokunye. Iplastiki ayiloyiki ukubola, ayiqhubeki umbane, ilula kwaye iqinile. Ukuqaliswa kwezinto ezinjalo ebomini kunokunika amandla ekuphuhlisweni koshishino kumacandelo amaninzi. Ndinqwenela ukuba andizange ndilinde eminye iminyaka elithoba ngolu suku luqaqambileyo.
umthombo: 3dnews.ru