Kupititsa patsogolo ndi Kuyambitsa Mwachidule kwa Polypropylene Fiber

Kukula koyambirira komanso kugwiritsa ntchito ulusi wa polypropylene kudayamba m'ma 1960.Poyerekeza ndi ulusi wina wamba komanso wogwiritsidwa ntchito kwambiri monga ulusi wa poliyesitala ndi ulusi wa acrylic, chitukuko ndi kugwiritsa ntchito ulusi wa polypropylene kudayamba mochedwa.Panthawi imodzimodziyo, chifukwa cha kutulutsa kochepa ndi kugwiritsira ntchito, kugwiritsidwa ntchito kwake sikunali kwakukulu kwambiri kumayambiriro koyambirira.Pakali pano, ndi luso mosalekeza sayansi ndi luso, kafukufuku mosalekeza ndi chitukuko ndi kukweza kwa zipangizo nsalu zatsopano, njira zatsopano ndi umisiri watsopano, kafukufuku ndi chitukuko ndi kupanga polypropylene CHIKWANGWANI pang'onopang'ono anamvetsera ndi ntchito, makamaka posachedwapa. zaka makumi awiri, liwiro lake kukula mofulumira, ndipo pang'onopang'ono wakhala wotchuka kwambiri CHIKWANGWANI watsopano m'munda nsalu.
Ulusi wa polypropylene ndi dzina lamalonda la ulusi wa polypropylene, ndipo ndi polima wapamwamba kwambiri wopangidwa ndi propylene ngati monoma.Ndi molekyulu yopanda polar.Ulusi wa polypropylene uli ndi mphamvu yokoka ya 0.91, yomwe ndi 3/5 ya thonje ndi viscose, 2/3 ya ubweya ndi polyester fiber, ndi 4/5 ya acrylic fiber ndi nayiloni.Ili ndi mphamvu zambiri, mphamvu ya fiber imodzi ya 4.4 ~ 5.28CN / dtex, kuyambiranso kwa chinyezi chochepa, kuyamwa madzi pang'ono, makamaka mphamvu yonyowa yofanana ndi mphamvu youma, ndi kupukuta bwino, kukana kuvala bwino ndi kupirira.Komabe, pakuwunika kwa mawonekedwe ake a macromolecular, kukhazikika kwake mpaka kuwala ndi kutentha kumakhala kosauka, ndikosavuta kukalamba, komanso kufewetsa kwake ndikotsika (140 ℃-150 ℃).Panthawi imodzimodziyo, mamolekyu ake alibe magulu omwe amayenderana ndi mamolekyu a utoto, choncho ntchito yake yopaka utoto imakhala yochepa.(Pakadali pano, pa gwero lozungulira la ulusi, mitundu yosiyanasiyana ya ulusi wowala wa polypropylene imatha kupangidwa powonjezera mtundu wa masterbatch.)