Aramid fiber ntau tau yug los thaum xyoo 1960s.Nws yog thawj zaug tsis paub tias yog cov khoom siv rau kev txhim kho ntawm lub qab ntuj khwb thiab cov khoom siv tseem ceeb.Tom qab kawg ntawm Kev Tsov Rog Txias, aramid fiber ntau, raws li cov khoom siv fiber ntau, tau siv dav hauv pej xeem, thiab nws maj mam paub.Muaj ob hom aramid fibers uas muaj qhov ua tau zoo tshaj plaws: ib qho yog meta-aramid fiber ntau nrog zigzag molecular saw kev npaj, uas yog hu ua aramid fiber 1313 hauv Suav teb;Ib qho yog para-aramid fiber ntau nrog linear molecular saw kev npaj, uas yog hu ua aramid fiber 1414 hauv Suav teb.
Tam sim no, aramid fiber ntau yog cov khoom siv tseem ceeb rau kev tiv thaiv hauv tebchaws thiab kev lag luam tub rog.Txhawm rau ua kom tau raws li qhov xav tau ntawm kev ua tsov rog niaj hnub no, cov tsho tiv thaiv mos txwv ntawm cov teb chaws tsim kho xws li Tebchaws Meskas thiab Tebchaws Askiv yog ua los ntawm aramid fiber ntau.Lub teeb yuag ntawm aramid cov tsho tiv thaiv mos txwv thiab cov kaus mom hlau tau ua kom zoo dua qhov muaj peev xwm teb tau sai thiab kev tuag ntawm cov tub rog.Hauv Gulf War, aramid composites tau siv dav los ntawm Asmeskas thiab Fabkis cov dav hlau.Ntxiv nrog rau kev siv tub rog, nws tau siv dav los ua cov khoom siv fiber ntau hauv aerospace, electromechanical, kev tsim kho, tsheb, khoom ua si thiab lwm yam kev lag luam hauv lub tebchaws.Hauv aviation thiab aerospace, aramid fiber ntau txuag hluav taws xob ntau vim nws lub teeb yuag thiab siab zog.Raws li cov ntaub ntawv txawv teb chaws, txhua kilogram ntawm qhov hnyav txo thaum lub sij hawm tso tawm lub dav hlau txhais tau tias tus nqi txo $ 1 lab.Tsis tas li ntawd, kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis tau qhib ntau qhov chaw pej xeem tshiab rau aramid fiber ntau.Raws li cov lus ceeb toom, cov khoom siv aramid yog siv rau cov tsho tiv thaiv mos txwv thiab cov kaus mom hlau, suav txog li 7-8%, thiab cov khoom siv dav hlau thiab cov khoom siv ncaws pob suav txog li 40%.Lub log tsheb pob txha cov ntaub ntawv, cov ntaub ntawv siv conveyor thiab lwm yam suav txog li 20%, thiab cov hlua muaj zog muaj zog txog li 13%.Kev lag luam log tsheb kuj tau pib siv aramid qaum hauv ntau kom txo qhov hnyav thiab dov tsis kam.
Aramid, lub npe hu ua "polyphenylphthalamide" thiab lub npe hu ua Aramid fiber ntau hauv lus Askiv, yog ib hom tshiab ntawm high-tech hluavtaws fiber ntau, uas muaj cov khoom zoo xws li ultra-siab zog, siab modulus, kub tsis kam, acid thiab alkali tsis kam, Lub teeb yuag, rwb thaiv tsev, lub neej ntev ntawm kev laus tiv thaiv, thiab lwm yam. Nws lub zog yog ntau dua 28g / denier, uas yog 5-6 npaug ntawm cov hlau zoo, 2 npaug ntawm lub zog siab nylon hlau, 1.6 npaug ntawm cov hlau zoo. ntawm high-strength graphite thiab 3 npaug ntawm iav fiber.Lub modulus yog 2-3 npaug ntawm cov hlau xaim lossis iav fiber ntau, qhov toughness yog 2 npaug ntawm cov hlau hlau, thiab qhov hnyav tsuas yog li 1/5 ntawm cov hlau hlau.Kev kub siab ua haujlwm zoo, kev siv mus sij hawm ntev ntawm 300 degrees, lub sij hawm luv luv kub kub tsis kam ntawm 586 degrees.Kev tshawb pom ntawm aramid fiber ntau yog suav tias yog txheej txheem keeb kwm tseem ceeb hauv cov khoom siv.
Post lub sij hawm: Nov-21-2022