Composites, uas yog cov khoom tsim los ntawm ob lossis ntau hom khoom sib txawv, tau dhau los ua neeg nyiam nyob rau xyoo tas los no vim lawv cov khoom tshwj xeeb thiab ntau yam. Ib qho ntawm ntau yam khoom ntawm cov khoom sib xyaw uas tau txais kev saib xyuas yog lawv lub peev xwm rwb thaiv tsev.
Yog li, puas yog cov ntaub ntawv zoo insulators? Cov lus teb luv luv yog yog! Composites muaj zoo thermal thiab hluav taws xob rwb thaiv tsev zog, ua rau lawv zoo tagnrho rau ntau yam kev siv.
Thermal rwb thaiv tsev yog lub peev xwm ntawm cov khoom siv los tiv thaiv kev hloov ntawm tshav kub. Composites yog cov thermal insulators zoo heev vim yog txoj kev lawv tsim. Feem ntau, cov khoom sib xyaw muaj xws li cov khoom siv matrix, xws li epoxy lossis fiberglass, nrog cov fibers txhawb zog, xws li carbon fiber lossis Kevlar. Ua ke, cov ntaub ntawv no tsim cov qauv nrog cov thermal conductivity tsawg, txhais tau tias lawv tsis hloov cua sov zoo.
Composites yog siv nyob rau hauv ntau lub lag luam uas thermal rwb thaiv tsev yog qhov tseem ceeb. Piv txwv li, nyob rau hauv kev tsim kho kev lag luam, composites feem ntau yog siv nyob rau hauv ru tsev thiab cladding panels los pab tswj qhov kub thiab txias nyob rau hauv ib lub tsev. Tsis tas li ntawd, cov khoom sib xyaw yog siv rau hauv kev lag luam aerospace los tiv thaiv lub dav hlau thiab satellites los ntawm qhov kub siab tshaj plaws hauv qhov chaw sab nrauv.
Composites kuj zoo heev hluav taws xob insulators. Qhov no txhais tau tias lawv tsis ua hluav taws xob, uas tuaj yeem pab tiv thaiv hluav taws xob hluav taws xob thiab lwm yam kev phom sij. Qhov tsis zoo ntawm cov khoom sib xyaw ua rau lawv zoo tagnrho rau kev siv hauv ntau daim ntawv thov hluav taws xob, suav nrog cov xaim hluav taws xob, Circuit Court boards, thiab hluav taws xob rwb thaiv tsev.
Muaj ntau ntau hom kev sib xyaw siv hauv kev siv hluav taws xob, suav nrog iav-cov yas siv zog (GRP), carbon fiber-reinforced polymer (CFRP), thiab aramid fiber-reinforced polymer (AFRP). Cov ntaub ntawv no muaj zog thiab lub teeb yuag thiab muaj cov khoom siv rwb thaiv tsev zoo, ua rau lawv zoo tagnrho rau siv hauv cov khoom siv hluav taws xob siab.
Composites kuj tseem tuaj yeem muab cov suab rwb thaiv tsev zoo. Thaum siv hauv kev tsim kho, cov khoom sib xyaw tuaj yeem pab txo cov suab nrov los ntawm kev thaiv cov suab tsis xav tau. Qhov no tuaj yeem muaj txiaj ntsig tshwj xeeb hauv nroog, qhov chaw uas tsis xav tau lub suab nrov tuaj yeem ua teeb meem loj.
Tsis tas li ntawd, cov khoom sib xyaw kuj tuaj yeem siv los tsim cov suab nrov hauv kev lag luam uas muaj suab nrov nrov, xws li nyob ib puag ncig tshav dav hlau, chaw nres tsheb ciav hlau, lossis cov chaw ua haujlwm.
Composites yog cov insulators zoo heev, muab ntau yam khoom uas ua rau lawv muaj txiaj ntsig hauv ntau yam kev siv. Los ntawm thermal rwb thaiv tsev mus rau hluav taws xob rwb thaiv tsev thiab suab rwb thaiv tsev, composites muab cov khoom tshwj xeeb uas tuaj yeem pab txhim kho kev nyab xeeb thiab kev ua haujlwm tag nrho.
Composites kuj yog lub teeb yuag thiab muaj zog, ua rau lawv zoo tagnrho rau kev siv hauv kev siv qhov hnyav thiab lub zog yog qhov tseem ceeb rau kev txiav txim siab. Raws li kev siv thev naus laus zis, nws zoo li cov khoom sib xyaw yuav txuas ntxiv siv rau hauv txoj hauv kev tshiab zuj zus, txuas ntxiv nthuav lawv cov kev siv ntau yam.
Zuag qhia tag nrho, cov khoom sib xyaw yog cov khoom muaj txiaj ntsig thiab muaj ntau yam uas muab cov khoom siv rwb thaiv tsev zoo heev thiab muaj lwm yam txiaj ntsig. Yog li ntawd, lawv paub tseeb tias yuav nyob twj ywm ib qho tseem ceeb hauv ntau qhov kev lag luam rau xyoo tom ntej.