Dab tsi yog cov khoom siv aramid? Lub luag haujlwm ntawm aramid yog dab tsi?

Dab tsi yog cov khoom siv aramid? Lub luag haujlwm ntawm aramid yog dab tsi?

 

Dab tsi yog cov khoom siv aramid? Lub luag haujlwm ntawm aramid yog dab tsi? Aramid (Nomex yog ib hom aramid, yog isophthalamide), yog ib hom tshiab ntawm high-tech hluavtaws fiber ntau, nrog ultra-siab zog, siab modulus thiab kub tsis kam, acid thiab alkali tsis kam, lub teeb yuag, rwb thaiv tsev, tsis kam. Cov khoom zoo heev xws li kev laus ua haujlwm thiab lub neej ntev, thiab yog siv dav hauv cov khoom sib xyaw, cov khoom tsis zoo, cov khoom siv hauv tsev, cov ris tsho tiv thaiv tshwj xeeb, cov khoom siv hluav taws xob thiab lwm yam.

Dab tsi yog cov khoom siv aramid?

Lub npe tag nrho ntawm aramid yog "poly-p-phenylene terephthalamide", thiab lus Askiv lub npe yog aramid fiber (lub npe lag luam ntawm Teijin Aramid yog Twaron, thiab lub npe lag luam ntawm DuPont yog Kevlar). Nws yog ib hom tshiab ntawm high-tech hluavtaws fiber ntau nrog cov khoom zoo xws li ultra-siab zog, siab modulus, kub tsis kam, acid thiab alkali tsis kam, thiab lub teeb yuag. Nws lub zog yog 5-6 npaug ntawm cov hlau hlau, thiab nws cov qauv yog 2 npaug ntawm cov hlau hlau lossis iav fiber ntau. ~ 3 zaug, qhov toughness yog 2 npaug ntawm cov hlau hlau. Qhov hnyav tsuas yog li 1/5 ntawm cov hlau hlau, thiab nws tsis decompose los yog yaj ntawm qhov kub ntawm 560 degrees. Nws muaj cov rwb thaiv tsev zoo thiab tiv thaiv kev laus, thiab muaj lub neej ua haujlwm ntev. Kev tshawb pom ntawm aramid yog suav tias yog txheej txheem keeb kwm tseem ceeb hauv kev lag luam cov ntaub ntawv.

Lub luag haujlwm ntawm aramid yog dab tsi?

Para-aramid fiber ntau yog ib qho tseem ceeb ntawm kev tiv thaiv lub teb chaws thiab cov khoom siv tub rog. Yuav kom ua 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 United Kingdom yog txhua yam ua los ntawm aramid. Lub teeb yuag ntawm aramid mos txwv vests thiab kaus mom hlau ua tau zoo ua kom cov tub rog ceev ceev. teb thiab lethality. Thaum Tsov Rog Gulf, Asmeskas thiab Fabkis cov dav hlau tau siv dav siv aramid sib xyaw. Ntxiv nrog rau kev siv tub rog, raws li cov khoom siv high-tech fiber ntau, nws tau siv dav hauv ntau yam ntawm kev lag luam hauv lub tebchaws xws li aerospace, electromechanical, kev tsim kho, tsheb, thiab cov khoom ua si. Hauv aerospace, aramid fiber ntau txuag lub zog thiab roj ntau vim nws lub teeb yuag thiab lub zog siab. Raws li cov ntaub ntawv txawv teb chaws, txhua kilogram ntawm qhov hnyav poob thaum lub sij hawm tso tawm lub dav hlau txhais tau tias tus nqi txo $ 1 lab. . Tsis tas li ntawd, txoj kev loj hlob sai ntawm kev siv tshuab tau qhib ntau qhov chaw pej xeem tshiab rau aramid. Raws li cov lus ceeb toom, cov khoom siv aramid yog siv rau cov tsho tiv thaiv mos txwv, kaus mom hlau, thiab lwm yam, suav txog li 7-8 feem pua, cov khoom siv dav hlau thiab cov ntaub ntawv kis las suav txog li 40 feem pua; cov ntaub ntawv log tsheb, cov ntaub ntawv siv conveyor, thiab lwm yam, suav txog li 20 feem pua, cov hlua muaj zog thiab lwm yam txog 13 feem pua. Kev lag luam log tsheb kuj tau pib siv aramid cords feem ntau los txo qhov hnyav thiab txo qhov kev sib tw. Aramid cov khoom siv hauv cov tsho tiv thaiv mos txwv, kaus mom hlau, thiab lwm yam., suav txog li 7-8 feem pua, cov khoom siv dav hlau thiab cov ntaub ntawv kis las suav txog li 40 feem pua; cov ntaub ntawv log tsheb, cov ntaub ntawv siv conveyor, thiab lwm yam, suav txog li 20 feem pua, cov hlua muaj zog thiab lwm yam suav txog li 13 feem pua. Kev lag luam log tsheb kuj tau pib siv aramid cords feem ntau los txo qhov hnyav thiab txo qhov kev sib tw. Aramid cov khoom siv hauv cov tsho tiv thaiv mos txwv, kaus mom hlau, thiab lwm yam, suav txog li 7-8 feem pua, cov khoom siv dav hlau thiab cov ntaub ntawv kis las suav txog li 40 feem pua; cov ntaub ntawv log tsheb, cov ntaub ntawv siv conveyor, thiab lwm yam, suav txog li 20 feem pua, cov hlua muaj zog thiab lwm yam suav txog li 13 feem pua. Kev lag luam log tsheb kuj tau pib siv aramid cords nyob rau hauv loj kom txo tau qhov hnyav thiab txo cov dov tsis kam.