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aramid yog dab tsi? Kev ua tau zoo li cas?

Views:8 Author: Linda Tshaj Tawm Sijhawm: 2023-07-13 keeb kwm:

Aramid fiber ntau yog muab faib ua ob hom, para-aramid fiber (PPTA) thiab meta-aramid fiber (PMIA). Txij li thaum xyoo 1960, DuPont (DuPont) ntawm Tebchaws Meskas tau ua tiav kev tsim aramid fiber ntau thiab coj tus thawj coj hauv kev lag luam. , Hauv ntau tshaj 30 xyoo, aramid fiber ntau tau dhau los ntawm cov txheej txheem ntawm kev hloov pauv ntawm cov khoom siv tub rog rau cov ntaub ntawv pej xeem, thiab tus nqi kuj tau txo los ntawm ze li ntawm ib nrab. Tam sim no aramid fiber ntau tau dhau los ua neeg paub tab nyob rau hauv cov nqe lus ntawm kev tshawb fawb thiab kev loj hlob theem thiab loj-scale ntau lawm. Nyob rau hauv lub tshav pob ntawm aramid fiber ntau lawm, para-aramid fiber ntau muaj kev loj hlob sai tshaj plaws, thiab nws cov peev xwm ntau lawm yog concentrated nyob rau hauv Nyiv, Tebchaws Asmeskas, thiab Europe. DuPont tau tshaj tawm xyoo tas los tias nws yuav nthuav dav kev tsim cov peev txheej ntawm Kevlar fiber ntau, thiab qhov kev nthuav dav yuav tsum ua kom tiav thaum kawg ntawm lub xyoo no. Tsis yog yuav tsum tau outdone, paub zoo aramid tuam txhab uas muag xws li Teijin thiab Hearst tau nthuav ntau lawm los yog koom nrog ib tug tom qab ib tug, thiab nquag tshawb nrhiav kev lag luam, vam tias yuav dhau los ua lub zog tshiab hauv kev lag luam hnub ci.

Lub npe tag nrho ntawm para-aramid yog "poly-paraphenylene terephthalamide", uas yog Para-Aramid fiber hauv lus Askiv. Nws yog ib hom tshiab ntawm high-tech hluavtaws fiber ntau nrog ultra-siab zog, siab modulus, kub tsis kam, acid thiab alkali tsis kam. , lub teeb yuag thiab lwm yam khoom zoo heev, nws lub zog yog 5 mus rau 6 npaug ntawm cov hlau hlau, nws cov qauv yog 2 mus rau 3 npaug ntawm cov hlau hlau lossis iav fiber ntau, nws lub zog yog 2 npaug ntawm cov hlau hlau, thiab nws qhov hnyav tsuas yog txog 1/5 ntawm steel hlau. Nyob rau hauv qhov kub thiab txias, nws yuav tsis decompose los yog yaj. Nws muaj kev rwb thaiv tsev zoo thiab kev tiv thaiv kev laus, thiab muaj lub neej ntev. Kev tshawb pom ntawm aramid 1414 yog suav tias yog ib qho tseem ceeb ntawm cov txheej txheem keeb kwm hauv kev lag luam khoom siv.

aramid 2

Lub tuam txhab German tsis ntev los no tau tsim cov khoom lag luam zoo ultra-fine para-aramid, uas tsis yog nplaim taws lossis molten, muaj lub zog siab thiab muaj peev xwm txiav zoo, thiab feem ntau yog siv rau kev tsim cov coated thiab uncoated fabrics thiab knitted khoom ntau yam textile. thiab cov khoom siv khaub ncaws xws li rab koob thiab rab koob muaj peev xwm tiv taus kub thiab txiav. Lub fineness ntawm ultra-nplua filament tsuas yog 60% ntawm cov para-aramid fiber ntau siv nyob rau hauv ua hauj lwm kev nyab xeeb khaub ncaws. Siv nws los xaws hnab looj tes tuaj yeem ua rau nws qhov kev txiav tawm los ntawm 10%. Siv nws los tsim cov khoom woven thiab knitted muaj ib tug softer xav thiab yog yooj yim rau siv. xis nyob. Aramid cut-resistant hnab looj tes yog tsuas yog siv nyob rau hauv tsheb tsim, iav kev lag luam thiab hlau qhov chaw ntau lawm cov nroj tsuag. Lawv tuaj yeem tsim cov khoom tiv thaiv ceg rau kev lag luam hav zoov thiab muab cov cuab yeej tiv thaiv kev ua phem rau pej xeem kev lag luam. Siv cov nplaim retardant thiab kub tsis kam ntawm aramid fiber ntau, nws tuaj yeem muab kev tiv thaiv suits thiab pam vov thiab lwm yam khoom siv rau kev tua hluav taws, nrog rau cov khaub ncaws kub-resistant thiab hluav taws kub-resistant rau casting, furnaces, iav factories thiab lwm qhov chaw ua haujlwm kub. , nrog rau kev tsim cov dav hlau rooj zaum roj retardant. Qhov kev ua tau zoo fiber ntau no tseem tuaj yeem siv los tsim cov tsheb log tsheb, txias hoses, V-siv thiab lwm yam khoom siv, fiber ntau optical cables thiab cov cuab yeej tiv thaiv xws li cov tsho tiv thaiv mos txwv, thiab tuaj yeem hloov cov asbestos ua cov ntaub ntawv sib txhuam thiab cov khoom sib khi.

Kev thov thoob ntiaj teb rau aramid fiber ntau qhia tau hais tias muaj kev loj hlob, thiab aramid fiber ntau, raws li cov khoom siv fiber ntau tshiab, tau nkag mus rau lub sijhawm ntawm kev loj hlob sai.


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