xov xwm

Fiberglass yog dab tsi?

Cov iav fiber ntau tau siv dav vim lawv cov nqi-zoo thiab cov khoom zoo, feem ntau hauv kev lag luam composites. Raws li thaum ntxov xyoo pua 18th, cov neeg European pom tau hais tias iav tuaj yeem hloov mus rau hauv fibers rau kev xaws. Lub hleb ntawm Fabkis Emperor Napoleon twb muaj cov ntaub zoo nkauj ua los ntawm fiberglass. Cov iav fibers muaj ob qho tib si filaments thiab luv fibers lossis flocs. Cov iav filaments feem ntau yog siv rau hauv cov ntaub ntawv sib xyaw, cov khoom siv roj hmab, cov khoom siv conveyor, tarpaulins, thiab lwm yam. Cov fibers luv luv feem ntau yog siv rau hauv cov ntaub ntawv tsis-woven, engineering plastics thiab cov ntaub ntawv sib xyaw.

Cov iav fiber ntau zoo nkauj lub cev thiab cov khoom siv kho tshuab, yooj yim ntawm fabrication, thiab tus nqi qis piv raucarbon fiber ntauua nws cov khoom ntawm kev xaiv rau kev ua haujlwm siab ua haujlwm sib xyaw. Cov iav fibers yog tsim los ntawm oxides ntawm silica. Cov iav fibers muaj cov cuab yeej zoo heev xws li tsis tshua muaj nkig, siab zog, tsis tshua muaj zog thiab lub teeb yuag.

iav fiber ntau reinforced polymers muaj cov chav kawm loj ntawm ntau hom iav fibers, xws li longitudinal fibers,chopped fibers, woven mats, thiabchopped strand mats, thiab siv los txhim kho cov khoom siv kho tshuab thiab tribological ntawm cov khoom siv polymer. Cov iav fibers tuaj yeem ua tiav qhov sib piv siab thawj zaug, tab sis brittleness tuaj yeem ua rau cov fibers tawg thaum ua.

iav fiber ntau

Cov yam ntxwv tseem ceeb ntawm iav fiber ntau muaj xws li cov hauv qab no:

Tsis yooj yim rau nqus dej:iav fiber ntauyog cov tshuaj tiv thaiv dej thiab tsis haum rau cov khaub ncaws, vim hws yuav tsis nqus, ua rau cov neeg hnav ntub dej; vim tias cov khoom tsis cuam tshuam los ntawm dej, nws yuav tsis ntsws.

Inelasticity: Vim tsis muaj elasticity, cov ntaub muaj me ntsis inherent stretch thiab rov qab. Yog li ntawd, lawv xav tau kev kho saum npoo los tiv thaiv wrinkling.

Siab zog:Fiberglass muaj zog heev, yuav luag zoo li Kevlar. Txawm li cas los xij, thaum cov fibers rub tawm rau ib leeg, lawv tawg thiab ua rau cov ntaub ua rau lub ntsej muag shaggy.

Rwb thaiv tsev: Hauv daim ntawv luv fiber ntau, fiberglass yog ib qho zoo heev insulator.

Drapability: Cov fibers drape zoo, ua rau lawv zoo tagnrho rau curtains.

Thaum tshav kub kub Resistance: Cov iav fibers muaj qhov kub thiab txias, tuaj yeem tiv taus kub txog 315 ° C, lawv tsis cuam tshuam los ntawm tshav ntuj, tshuaj dawb, kab mob, pwm, kab los yog alkalis.

Raug mob:iav fibers cuam ​​tshuam los ntawm hydrofluoric acid thiab kub phosphoric acid. Txij li cov fiber ntau yog cov khoom siv iav, qee cov iav fiber ntau yuav tsum tau ua tib zoo saib xyuas, xws li cov khoom siv rwb thaiv tsev hauv tsev, vim tias cov fibers kawg yog qhov tsis yooj yim thiab tuaj yeem tho rau ntawm daim tawv nqaij, yog li cov hnab looj tes yuav tsum tau hnav thaum tuav fiberglass.

Kev siv iav fiber ntau

Fiberglass yog cov khoom siv tsis zoo uas tsis hlawv thiab khaws cia txog 25% ntawm nws lub zog pib ntawm 540 ° C. Feem ntau cov tshuaj muaj me ntsis cuam tshuam rau cov iav fibers. Inorganic fiberglass yuav tsis pwm los yog deteriorate. Cov iav fibers raug cuam tshuam los ntawm hydrofluoric acid, kub phosphoric acid thiab muaj zog alkaline tshuaj.

Nws yog cov khoom siv hluav taws xob zoo heev.Fiberglass ntaub muaj cov khoom xws li tsis muaj noo noo nqus, siab zog, kub tsis kam thiab tsis tshua muaj dielectric tas li, ua rau lawv zoo tagnrho cov khoom siv rau cov ntawv luam tawm Circuit Board thiab insulating varnishes.

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