1.Definition ntawm aramid fibers
Aramid Fiber yog lub npe sib sau rau cov ntxhiab tsw ntxhiab polyamide fibers.
2.Classification ntawm aramid fibers
Aramid Fiber raws li cov qauv molecular tuaj yeem faib ua peb hom: cov tshuaj tsw qab ntawm cov roj av, cov ntxhiab tsw qab polyamide copolymer capolymer fiber ntau. Ntawm lawv, Para-ntxhiab polyamide fibers tau muab faib ua poly-p-aminobenpaultlamide fibers tau muab faib ua poly-m-tolyl terephthalamide fibers, Poly-n, nm-tolyl-bis- (isobenlenhide) treaphthalamide fibers.
3.Qhov cov yam ntxwv ntawm aramid fibers
1. Cov khoom siv zoo
Inamid Aramid yog ib lub zog yooj yim dua, cov ntaub ntawv tsis zoo, tuaj yeem ua rau cov khaub ncaws sib txawv, tom qab ua tiav ntawm cov khaub ncaws sib txawv ntawm cov khaub ncaws tiv thaiv.
2. Cov nplaim dub zoo thiab kub tiv
Lub lim piam oxygen index (Loi) ntawm m-aramid yog 28, yog li nws tsis txuas ntxiv mus hlawv thaum nws tawm cov nplaim taws. Cov nplaim taws Retardant cov khoom ntawm M-Aramid yog txiav txim siab los ntawm nws cov nplaim taws retardant fiber ntau uas tsis demrade lossis poob nws nplaim retardant cov khoom nrog lub sijhawm lossis ntxuav. Lub M-Arabid yog qhov ruaj khov khov thiab tuaj yeem siv tsis tu ncua ntawm 205 ° C thiab tswj lub zog ntawm qhov kub ntawm qhov kub tshaj 205 ° C. Lub M-Aramid muaj lub siab kev txiav txim siab kub thiab tsis yaj lossis dripert lossis drip ntawm qhov kub, tab sis tsuas yog pib mus char ntawm kub ntau dua 370 ° C.
3. Cov khoom siv hluav taws xob ruaj khov
Ntxiv rau ntxiv rau cov muaj zog acids thiab cov hauv paus, aramid yog tsis muaj kev cuam tshuam los ntawm cov tshuaj organic thiab roj. Lub zog ntub ntawm Aramid yog yuav luag sib npaug rau lub zog qhuav. Qhov ruaj khov ntawm cov dej khov kho dej vapor yog qhov zoo dua li ntawm lwm cov organic fibers.
Aramid yog qhov rhiab rau UV teeb. Yog tias raug lub hnub rau lub hnub ntev, nws yuav poob ntau lub zog thiab yuav tsum yog li muaj kev tiv thaiv nrog txheej tiv thaiv. Qhov txheej txheem tiv thaiv no yuav tsum muaj peev xwm thaiv kev puas tsuaj rau cov pob txha caj qaum los ntawm UV teeb.
4. Radiation Resistance
Lub radiation rillarance ntawm interposition aramids tau zoo heev. Piv txwv li, hauv qab 1.72x108rad / s ntawm r-hluav taws xob, lub zog nyob tas li.
5. Lub Neej
Tom qab 100ashes, kua muag lub zog ntawm M-Aramid Fabrics tseem tuaj yeem ncav cuag ntau dua 85% ntawm lawv lub zog qub. Qhov kub tsis kam ntawm para-aramids yog siab tshaj qhov ntawm inter-aramids, nrog kev txuas ntxiv ntawm -196 ° C thiab tsis muaj decompose lossis yaj ntawm 560 ° C. Qhov tseem ceeb tshaj plaws ntawm para-aramid yog nws lub zog siab thiab lub zog ntawm cov iav siab, 3 zaug ntawm cov khoom muaj zog nylon muaj xov paj; Nws cov modulus yog 2 ~ 3 zaug ntawm cov hlau zoo lossis iav fiber ntau thiab 10 lub zog ntawm cov khoom muaj zog nylon muaj xov paj. Qhov tshwj xeeb cov qauv saum npoo av ntawm aramid pulp, uas yog tau los ntawm saum npoo fibrillation, zoo heev txhim kho tus tuav ntawm lub compound thiab yog li ntawd zoo li txhawb nqa cov fiber ntau rau kev sib txhuam thiab cov khoom lag luam. Aramid Pulp Hexagonal Tshwj Xeeb Fiber Kuv Aramid 1414 lub zog tsis txaus ntseeg, muaj lub zog loj, muaj qhov muaj zog loj, muaj qhov ntev tshaj plaws ntawm 2-2.5mm thiab thaj tsam ntawm 8M2 / g. Nws yog siv los ua gasket txhawb cov khoom siv nrog kev ua kom zoo thiab kev sib khi, thiab tuaj yeem siv rau cov neeg noj qab haus huv, thiab tuaj yeem siv rau cov roj ntsha li kua qaub thiab nruab nrab, thiab cov xov xwm alkali. Nws tau raug pov thawj tias lub zog ntawm cov khoom yog sib npaug rau 50-60% ntawm asbestos fiber ntau cov khoom siv thaum tsawg dua 10% ntawm cov slurry ntxiv. Nws yog siv los txhawb kev sib txhuam thiab lwm cov khoom lag luam, thiab siv tau cov khoom siv hluav taws xob kom tiv thaiv kev txhuam hniav thiab cov khoom siv kub siab.
Lub sij hawm Post: Lub Yim Hli 01-2022