Cov khoom lag luam
Ntawm graphite cov ntaub ntawv, cov nanotubes (CNTs) tau txiav txim siab yog ib qho ntawm cov neeg cog lus ntau tshaj plaws rau kev ruaj khov, muaj cov yeeb yaj kiab kub disspation rau high-fais fab khoom siv.
CNTs muaj ultra-siab axial thermal conductivity, thiab lub axial thermal conductivity ntawm cov kab ke-phab ntsa nkaus xwb tau mus txog ntau dua 6000 W \/ (MEY.
Chen li al. Siv CNT hmoov zoo li cov muab cov khoom ua haujlwm rau cov tub luam rau cov polymers kom txhim kho thermal conductivity; Txawm li cas los xij, lub ntim feem ntawm CNTs yog me me thiab hu rau ntawm Random CNTs cnts yog neeg pluag ntawm cov thermal conductivity ntawm cov khoom siv sib xyaw. Cnts buckyper npaj los ntawm cnts dispersion tuaj yeem qhia cov thermal conductivity ntawm ntau dua 100 w \/ ((my k) hauv lub dav hlau. Yog li no, cov qauv CNTS densely yog ib tug zoo tshaj plaws scaffold rau kev hloov CNTS los ntawm nanoscale mus rau macroscale.
CNT tau muaj zog Sp2 hybridized carbon hals thiab ntev phonon txhais tau li cas txoj kev siv hluav taws xob xws li CNT \/ polymer composites thiab CNT arrays tau tsim. Ntsug cov pa roj carbon nanotube arrays (railnts) nthuav tawm cov cua sov zoo dua nyob rau hauv cov tuab kev coj ua thiab muaj kev ua raws li siab. Qhov no pab daws cov teeb meem kev ntxhov siab thermal los ntawm kev tsis sib haum xeeb ntawm ob qho chaw sib tw, yog li cov neeg sib tw yuav dhau los ua tus neeg sib tw rau cov khoom siv thermal hauv cov khoom siv hluav taws xob siab.
Kev ua kom zoo nkauj molecular dynamics kwv yees hais tias lub dav hlau thermal conductivity yog qhov yuav tsum muaj thaum cov cuab yeej siv hluav taws xob siab. Lub ntim ntim ntawm CNTs hauv Vacnt yog tsawg dua 5%, thiab cov khoom ntim tsis tshua muaj ib txwm yog ib qho ntawm cov teeb meem tseem ceeb txwv nws txoj kev loj hlob.
Tsis tas li ntawd, ntau qhov kev tsis xws luag qub hauv CNTs cov teeb tseem yuav txwv lawv cov thermal conductivity. Vim yog cov qauv kev qhia ntau ntawm cov qauv ntawm cov qauv ntawm cov kev taw qhia ntsug, kev sib cuam tshuam ntawm CNTs hauv kev qhia kab rov tav yog qhov txwv. Cov huab cua sib txawv nyob rau hauv nruab nrab ua rau nws cov kab ke ntawm lub thermal conductivity thiab tshuab tshuab hluav taws xob (khoov zog, thiab lwm yam) kom tsis zoo. Thaum kawg, facnt yog yooj yim puas los ntawm kev ntsuas siab hauv cov ntawv thov, lossis tsis tuaj yeem sau cov khoom siv ntxhib, yog li ua tsis tiav nws lub luag haujlwm hauv kev xa cov cua sov.
Cim npe nrov: Vacnt, Tuam Tshoj Vacnt Manufacturers, Chaw muag khoom, Hoobkas
