Aramid fiber ntau yog ib hom hluavtaws fiber ntau uas paub txog nws lub zog siab thiab ua haujlwm kub. Nws yog feem ntau siv rau ntau yam kev siv xws li cov tsho tiv thaiv mos txwv, cov khoom siv dav hlau thiab cov dav hlau, thiab txawm nyob hauv lub ntiaj teb kev ua si rau cov kaus mom hlau thiab cov iav tiv thaiv. Hauv tsab xov xwm no, peb yuav tshawb xyuas lub zog ntawm aramid fibers, lawv tau sim li cas, thiab lawv qhov zoo hauv ntau qhov kev lag luam.
Lub zog ntawm aramid fibers
Aramid fibers paub txog lawv qhov tshwj xeeb lub zog thiab nruj. Lawv kuj zoo heev rau kev puas tsuaj thiab kev cuam tshuam, ua rau lawv zoo tagnrho rau cov ntawv thov uas muaj kev ruaj ntseg tseem ceeb. Ntawm cov aramid fibers, Kevlar thiab Nomex yog ob hom khoom siv feem ntau.
Lub zog ntawm aramid fibers feem ntau yog ntsuas raws li lub zog tensile, uas yog tus nqi ntawm lub zog xav tau los rhuav tshem cov khoom los ntawm rub nws sib nrug. Qhov kev tshaj tawm tensile lub zog ntawm Kevlar yog nyob ib ncig ntawm 3.5 GPa (Gigapascals), uas yog hais txog 5 npaug zog dua hlau. Qhov tseeb, Kevlar muaj lub zog tensile siab tshaj plaws ntawm cov khoom lag luam muaj fiber ntau. Txawm li cas los xij, nws muaj qis dua elastic modulus dua li cov hlau, uas txhais tau tias nws tsis tshua muaj zog thiab tuaj yeem deform yooj yim dua.
Lub zog ntawm Nomex yog me ntsis qis dua Kevlar, nrog kev tshaj tawm lub zog tensile ntawm ib ncig ntawm 2.5 GPa. Txawm li cas los xij, Nomex paub txog nws qhov kev tiv thaiv kub zoo heev thiab feem ntau siv rau hauv daim ntawv thov kev tiv thaiv los ntawm hluav taws thiab cua sov.
Kev ntsuas aramid fibers
Lub zog ntawm aramid fibers feem ntau ntsuas siv lub tshuab ntsuas tensile. Ib qho piv txwv me me ntawm cov fiber ntau yog clamped hauv lub tshuab thiab tom qab ntawd rub tawm ntawm tus nqi tas mus li thaum lub sij hawm thauj khoom thiab lim. Cov txiaj ntsig kev ntxhov siab-txheej nkhaus tuaj yeem siv los laij lub zog tensile thiab lwm yam khoom siv ntawm fiber ntau.
Qhov zoo ntawm aramid fibers
Muaj ntau qhov zoo rau kev siv aramid fibers hauv ntau qhov kev lag luam. Ib qho txiaj ntsig tseem ceeb tshaj plaws yog lawv lub zog-rau-qhov hnyav piv. Aramid fibers yog sib dua li hlau thiab lwm yam hlau, ua rau lawv zoo tagnrho rau cov ntawv thov qhov hnyav yog qhov kev txhawj xeeb. Lawv kuj muaj kev tiv thaiv zoo rau kev cuam tshuam thiab kev puas tsuaj, uas ua rau lawv muaj txiaj ntsig zoo hauv cov ntawv thov uas muaj kev ruaj ntseg tseem ceeb.
Lwm qhov kom zoo dua ntawm aramid fibers yog lawv cov tsis kam mus rau tshav kub thiab nplaim taws. Nomex, tshwj xeeb, yog siv dav hauv cov ntawv thov uas tiv thaiv hluav taws thiab kub yog qhov tseem ceeb. Piv txwv li, Nomex feem ntau yog siv hauv cov cuab yeej tua hluav taws thiab hauv cov khaub ncaws tub rog.
Thaum kawg, aramid fibers kuj paub txog lawv cov tshuaj tiv thaiv thiab lwm qhov chaw hnyav. Qhov no ua rau lawv zoo tagnrho rau kev siv hauv kev lag luam xws li roj thiab roj, qhov twg muaj cov tshuaj corrosive ntau.
