xov xwm

Fiberglass yog dab tsi?

Cov iav fibers siv dav vim lawv cov nqi tsim nyog thiab cov khoom zoo, feem ntau hauv kev lag luam composites. Thaum ntxov li xyoo pua 18th, cov neeg European tau paub tias iav tuaj yeem raug tig mus rau hauv cov fibers rau kev weaving. 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 luv fibers lossis flocs. Cov iav filaments feem ntau siv rau hauv cov ntaub ntawv sib xyaw, cov khoom roj hmab, cov siv conveyor, tarpaulins, thiab lwm yam. Cov luv luv fibers feem ntau yog siv rau hauv cov lev tsis-woven, engineering plastics thiab cov ntaub ntawv sib xyaw.

Cov iav fiber lub cev zoo nkauj thiab cov khoom siv kho tshuab, yooj yim ntawm kev tsim khoom, thiab tus nqi qis piv raucov roj carbon fiberua rau nws yog cov khoom siv xaiv rau kev ua haujlwm siab composite daim ntawv thov. Cov iav fibers yog tsim los ntawm oxides ntawm silica. Cov iav fibers muaj cov khoom siv kho tshuab zoo heev xws li tsis tshua muaj brittle, muaj zog siab, tsis tshua muaj zog thiab lub teeb yuag.

Cov iav fiber Cov polymers uas muaj zog muaj cov chav kawm loj ntawm ntau hom iav fibers, xws li cov fibers longitudinal,cov fibers txiav, cov ntaub pua plag uas muaj xov, thiabcov ntaub pua plag txiav, thiab siv los txhim kho cov khoom siv kho tshuab thiab tribological ntawm cov polymer composites. Cov iav fibers tuaj yeem ua tiav qhov sib piv siab thaum pib, tab sis brittleness tuaj yeem ua rau cov fibers tawg thaum lub sijhawm ua.

cov khoom siv fiber iav

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

Tsis yooj yim rau nqus dej:Cov iav fiberyog cov dej tsis nkag thiab tsis haum rau khaub ncaws, vim tias cov hws yuav tsis nqus tau, ua rau tus neeg hnav xav tias ntub; vim tias cov khoom tsis raug cuam tshuam los ntawm dej, nws yuav tsis ntsws.

Kev Tsis Ywj Pheej: Vim tsis muaj qhov ywj pheej, cov ntaub tsis tshua muaj kev ncab thiab rov qab zoo. Yog li ntawd, lawv xav tau kev kho kom zoo nkauj kom tiv taus kev ntsws.

Muaj Zog Siab:Fiberglass muaj zog heev, yuav luag muaj zog npaum li Kevlar. Txawm li cas los xij, thaum cov xov sib txhuam, lawv tawg thiab ua rau cov ntaub zoo li ntxhib.

Kev rwb thaiv tsev: Hauv daim ntawv luv luv, fiberglass yog ib qho insulator zoo heev.

Drapability: Cov fibers drape zoo, ua rau lawv zoo tagnrho rau cov ntaub thaiv qhov rai.

Kev Tiv Thaiv Kub: Cov iav fibers muaj kev tiv thaiv kub siab, tuaj yeem tiv taus qhov kub txog li 315 ° C, lawv tsis cuam tshuam los ntawm lub hnub ci, tshuaj dawb, kab mob, pwm, kab lossis alkalis.

Muaj kev phom sij:Cov iav fiber raug cuam tshuam los ntawm hydrofluoric acid thiab kub phosphoric acid. Vim tias cov fiber yog cov khoom ua los ntawm iav, qee cov iav fiber nyoos yuav tsum tau ua tib zoo saib xyuas, xws li cov ntaub ntawv rwb thaiv tsev hauv tsev, vim tias cov fiber kawg tsis yooj yim puas thiab tuaj yeem tho qhov tawv nqaij, yog li yuav tsum hnav hnab looj tes thaum tuav fiberglass.

Daim ntawv thov ntawm cov iav fiber

Fiberglass yog ib yam khoom inorganic uas tsis kub hnyiab thiab khaws cia li 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 lossis lwj. Cov iav fibers raug cuam tshuam los ntawm hydrofluoric acid, kub phosphoric acid thiab cov alkaline muaj zog.

Nws yog ib qho khoom siv hluav taws xob zoo heev.Cov ntaub fiberglass muaj cov khoom xws li kev nqus dej tsawg, lub zog siab, tiv taus cua sov thiab dielectric tsis tu ncua, ua rau lawv zoo tagnrho rau cov laug cam luam tawm thiab cov varnishes rwb thaiv tsev.

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