nkhani

1.Gulu la Aramid Fibers
Ulusi wa Aramid ukhoza kugawidwa m'mitundu iwiri ikuluikulu molingana ndi mapangidwe awo a mankhwala: mtundu umodzi umadziwika ndi kukana kutentha, moto wamoto wa meso-aramid, wotchedwa poly(p-toluene-m-toluoyl-m-toluamide), wofupikitsidwa monga PMTA, wotchedwa Nomex ku US, ndi Aramid 1313 ku China; ndipo mtundu winawo umadziwika ndi kulimba kwamphamvu, kutsika kwamphamvu kwambiri, komanso kukana kutentha, komwe kumatchedwa poly(p-phenylene terephthalamide), mwachidule PPTA, yotchedwa Kevlar ku US, Technora ku Japan, Twaron ku Netherlands, Tevlon ku Russia, ndi Tevlon ku China. P-phenylenediamine, yofupikitsidwa ngati PPTA, dzina la malonda la United States la Kevlar, Japan la Technora, Netherlands la Twaron, Russia la Tevlon, China lotchedwa aramid 1414.

Aramid fiberndi otsika kutentha zosagwira, mkulu-mphamvu, mkulu-elastic chitsanzo mitundu ya ulusi, zonse makina katundu wa ulusi wachilengedwe ndi organic ulusi, processing ntchito, kachulukidwe ndi poliyesitala ulusi n'zofanana. Pa nthawi yomweyo alinso kwambiri kukana mankhwala, kukana radiation, kukana kutopa, dimensional bata ndi zina zabwino ndi mphira utomoni ndi katundu zomatira. Panopa mankhwalawa ali ndi mitundu iwiri ya zamkati ndi CHIKWANGWANI. Khalani zakuthambo, mphira, mafakitale utomoni, zida zamagetsi ndi magetsi, mayendedwe, zida zamasewera ndi zomangamanga ndi madera ena a zipangizo zatsopano. Makamaka ndi kukonzekera kwa ma aramid fiber zopangidwa ndi mapepala apamwamba a aramid opangidwa ndi mapepala amatha kugwiritsidwa ntchito kwambiri ngati zida zotchinjiriza zamagetsi zapamwamba, matabwa osindikizira ndi zida zoteteza mafunde amagetsi ndi zina zomwe zimalemekezedwa kwambiri.

2. Aramid FiberMorphology
1414 CHIKWANGWANI ndi chikasu chowala, 1313 CHIKWANGWANI choyera chowala. Motsatana ndi ulusi waufupi (kapena ulusi) ndi ulusi wa zamkati (kapena ulusi wa mpweya) mitundu iwiri ya ulusi. Ulusi umagwiritsidwa ntchito makamaka muzovala, mphira ndi madera ena, makampani opanga mapepala omwe amagwiritsa ntchito ulusi wambiri ndi zamkati.