General mkhalidwe wa aramid CHIKWANGWANI

Kevlar (Kevlar) kwenikweni ndi dzina la chinthu cha DuPont, chomwe ndi mtundu wa zinthu za polima.Dzina lake la mankhwala ndi "poly (terephthalamide)", omwe amadziwika kuti "aramid fiber".

Aramid ndi dzina lodziwika bwino la polyamide onunkhira.Poyerekeza ndi zinthu wamba polyamide monga nayiloni 6 ndi nayiloni 66, aramid ali ndi zinthu zabwino monga kopitilira muyeso kulimba, mkulu modulus ndi kutentha kwambiri kukana chifukwa unyolo wofewa mpweya mu unyolo molekyulu amalowe m'malo ndi rigidne mphete kapangidwe.Pali mitundu yambiri ya ulusi wa aramid, ndipo aramid fiber 1313 ndi aramid fiber 1414 amagwiritsidwa ntchito kwambiri.Kevlar amafanana ndi aramid fiber 1414. Dzina la mankhwala a aramid fiber 1313 ndi polyphthalamide, yomwe ndi chinthu chabwino kwambiri chopanda moto.

Pakali pano, kufunika kwa pachaka kwa para-aramid fiber (aramid fiber 1414) ku China ndi matani oposa 5,000, makamaka kudalira kuchokera kunja, ndipo mtengo wamsika ndi wokwera kwambiri, pafupifupi 200,000 yuan / tani.Opanga kwambiri ndi DuPont ku United States ndi Teijin ku Japan.

Ponena za ulusi wa m-aramid (aramid fiber 1313), "Taimeida" yopangidwa ndi Yantai Taihe New Materials Co., Ltd. ili ndi gawo lachiwiri pamsika padziko lonse lapansi ndipo ili ndi mpikisano wamphamvu wamsika.Ogulitsa padziko lonse lapansi a m-aramid fiber makamaka ndi DuPont ku United States ndi Teijin ku Japan.Dupont ili ndi gawo lalikulu kwambiri pamsika komanso zotsatsa zambiri, ndipo akadali mtsogoleri wamakampani padziko lonse lapansi.