Yog aramid thiab Nomex yog ob qho tib si cov ntaub ntawv uas feem ntau siv nyob rau hauv ntau yam lag luam rau lawv lub zog siab, durability, thiab hluav taws-resistant zog. Txawm hais tias nws yuav yooj yim ua yuam kev ib qho rau lwm tus, muaj qee qhov sib txawv tseem ceeb ntawm ob cov ntaub ntawv no uas muab lawv sib nrug.
Yog aramid, yog ib hom hluavtaws aramid fiber ntau uas tau tsim nyob rau xyoo 1960 los ntawm DuPont. Nws zoo ib yam li Kevlar, lwm tus paub zoo aramid fiber ntau. Ua los ntawm cov hlua ntev-polymers, Isaramid zoo kawg nkaus muaj zog thiab hnav, ua rau nws zoo meej rau kev siv hauv cov ntawv thov uas qhov siab tshaj plaws lub zog-rau-qhov hnyav piv yog xav tau. Nws kuj muaj kev tiv thaiv zoo heev rau cov cua sov thiab tshuaj, uas ua rau nws muaj kev xaiv nrov hauv kev lag luam hnyav.
Ntawm qhov tod tes, Nomex yog lub npe lag luam rau ib hom nplaim hluav taws kub-resistant meta-aramid fiber ntau uas tau tsim thawj zaug hauv xyoo 1960 los ntawm DuPont. Nws tau pib tsim los siv rau hauv kev tiv thaiv khaub ncaws rau NASA cov neeg caij nkoj, tab sis txij li thaum nws tau pom nws txoj hauv kev mus rau ntau lwm yam lag luam, suav nrog kev tua hluav taws thiab kev sib tw. Nomex zoo ib yam nyob rau hauv muaj pes tsawg leeg rau Is aramid, tab sis nws tau tsim tshwj xeeb kom muaj cov nplaim hluav taws zoo heev. Nws muaj lub siab melting point thiab tsis drip los yog ignite nyob rau hauv high kub, ua rau nws ib tug zoo tagnrho cov ntaub ntawv rau siv nyob rau hauv cov ntaub ntawv uas yuav raug hluav taws kub.
Thaum muaj qee qhov zoo sib xws ntawm Isaramid thiab Nomex, lawv tsis yog cov khoom qub. Qhov sib txawv loj tshaj ntawm ob yog lawv qhov kev npaj siv. Isaramid feem ntau yog siv rau hauv cov ntawv thov uas muaj lub zog siab thiab tsis kam tiv thaiv cov tshuaj tab sis
hluav taws kub tsis kam yog qhov kev txhawj xeeb tseem ceeb. Hauv qhov sib piv, Nomex tau tsim tshwj xeeb los ua cov nplaim hluav taws thiab feem ntau siv nyob rau hauv ib puag ncig uas raug tshav kub lossis nplaim taws yog qhov ua tau tiag tiag.
Lwm qhov sib txawv ntawm ob yog lawv qhov melting point. Isaramid muaj qhov melting point ntawm ib ncig ntawm 450 degrees Celsius, thaum Nomex tuaj yeem tiv taus kub txog li 370 degrees Celsius ua ntej nws pib tawg. Qhov no ua rau Nomex qhov kev xaiv zoo dua hauv cov ntawv thov uas qhov kub siab dua yuav raug ntsib.
Hais txog cov khoom siv kho tshuab, Isaramid thiab Nomex muaj zog heev thiab ruaj khov. Lawv muaj lub zog tensile siab thiab tiv taus kev puas tsuaj thiab txiav. Txawm li cas los xij, Isaramid feem ntau suav hais tias muaj zog dua Nomex, nrog cov qauv siab dua ntawm elasticity thiab muaj peev xwm ntau dua los tiv thaiv deformation hauv kev ntxhov siab.
Hauv kev xaus, thaum Is aramid thiab Nomex zoo sib xws hauv kev sib xyaw, txhua tus muaj nws tus kheej cov khoom tshwj xeeb uas ua rau nws zoo rau qee yam kev siv. Yog aramid yog qhov zoo tshaj plaws siv rau hauv cov ntawv thov uas muaj zog thiab tiv taus tshuaj lom neeg yog qhov kev txhawj xeeb tseem ceeb, thaum Nomex tau tsim tshwj xeeb los ua cov nplaim hluav taws thiab zoo tagnrho rau siv nyob rau hauv ib puag ncig uas raug tshav kub lossis nplaim taws.
