Dab tsi yog Cov Khoom Zoo Ntawm Aramid Fiber?
Nws 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, tiv thaiv kev laus, lub neej ntev, ruaj khov qauv, tsis muaj tee thaum lub sij hawm combustion, thiab tsis muaj roj lom.
Para-aramid muaj qhov kub thiab txias dua li meta-aramid. Kev siv qhov kub thiab txias tsis tu ncua yog -196 ~ 204 degree, thiab nws tsis decompose lossis yaj ntawm qhov kub ntawm 560 degree. Cov yam ntxwv tseem ceeb tshaj plaws ntawm para-aramid yog 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 ntau dua 25 g / denier, uas yog 5 mus rau 6 npaug ntawm cov hlau zoo thiab iav fiber ntau. Nws yog 3 npaug ntawm lub zog siab nylon muaj xov paj; nws cov modulus yog 2 mus rau 3 npaug ntawm cov hlau zoo lossis iav fiber ntau, thiab 10 npaug ntawm cov xov paj muaj zog nylon; nws lub zog yog 2 npaug ntawm cov hlau hlau, thiab nws qhov hnyav tsuas yog li 1/5 ntawm cov hlau hlau. Nws muaj cov rwb thaiv tsev zoo thiab tiv thaiv kev laus, lub neej ntev.
zoo mechanical zog
Meta-aramid yog ib qho yooj yim polymer nrog lub zog tawg ntau dua li cov polyester zoo tib yam, paj rwb, nylon, thiab lwm yam, loj elongation, mos tes, thiab zoo spinnability. Nws tuaj yeem ua rau cov fibers luv luv thiab filaments ntawm qhov sib txawv thiab qhov ntev. , sib txawv xov tooj suav yog tsim rau hauv cov ntaub thiab cov ntaub tsis-woven los ntawm kev siv tshuab textile, thiab tom qab ua tiav, lawv ua tau raws li cov cai ntawm kev tiv thaiv khaub ncaws hauv ntau qhov chaw.
Aramid fiber ntau muaj cov nplaim hluav taws zoo heev thiab kub ua haujlwm
Meta-aramid muaj qhov txwv qhov ntsuas oxygen (LOI) ntau dua 28, yog li nws yuav tsis txuas ntxiv hlawv thaum tawm hauv nplaim taws. Cov nplaim retardant cov khoom ntawm meta-aramid yog txiav txim siab los ntawm nws tus kheej cov qauv tshuaj, yog li nws yog cov nplaim hluav taws kub nyhiab uas yuav tsis txo lossis poob nws cov nplaim hluav taws xob vim siv sij hawm thiab tus naj npawb ntawm kev ntxuav. Meta-aramid muaj thermal stability zoo, tuaj yeem siv tsis tu ncua ntawm 205 degree, thiab tseem tuaj yeem tuav lub zog siab ntawm qhov kub siab tshaj 205 degree. Meta-aramid muaj qhov kub siab decomposition thiab yuav tsis yaj los yog poob rau hauv qhov kub thiab txias. Carbonization yuav pib thaum kub siab tshaj 370 degree.
Aramid fiber ntau muaj cov tshuaj lom neeg ruaj khov
Meta-aramid muaj kev tiv thaiv zoo heev rau cov tshuaj feem ntau, tuaj yeem tiv taus feem ntau cov kua qaub inorganic acids, thiab muaj alkali tsis kam ntawm chav tsev kub.
Radiation kuj ntawm aramid fiber
Meta-aramid muaj hluav taws xob zoo heev. Piv txwv li, nyob rau hauv lub sij hawm ntev raug rau 1.2 × 10-2w/in2 ultraviolet rays thiab 1.72 × 108rads gamma rays, lawv qhov kev siv tseem tsis hloov.
Aramid fiber ntau durability
Meta-aramid muaj kev sib txhuam zoo heev thiab tshuaj tiv thaiv. Tom qab 100 zaug ntawm kev ntxuav, lub zog tsim kua muag ntawm cov ntaub ua tiav nrog Newstar® meta-aramid tseem tuaj yeem ncav cuag ntau dua 85% ntawm lub zog qub.
