Pamene PetroChina ndi Sinopec adayamba kupanga mizere yopangira chigoba, kupanga ndi kugulitsa masks, aliyense pang'onopang'ono adaphunzira kuti masks ndi mafuta ndizolumikizana kwambiri."Kuchokera ku Mafuta kupita ku Chigoba" mwatsatanetsatane ndondomeko yonse kuyambira mafuta mpaka chigoba sitepe ndi sitepe.Propylene imatha kupezeka kuchokera ku distillation ya petroleum ndi kusweka.Propylene imatha kupangidwa ndi polymerized kuti ipeze polypropylene, ndipo polypropylene imatha kupangidwanso kukhala ulusi wa polypropylene, womwe nthawi zambiri timatcha polypropylene.Ulusi wa polypropylene (polypropylene) ndiye chinthu chachikulu chopangira nsalu zopanda nsalu, koma sizinthu zokhazo.Polyester CHIKWANGWANI (polyester), polyamide CHIKWANGWANI (nayiloni), polyacrylonitrile CHIKWANGWANI (acrylic CHIKWANGWANI), viscose CHIKWANGWANI, etc. Angagwiritsidwe ntchito kupanga nsalu sanali nsalu.
Zoonadi, kuwonjezera pa ulusi wamankhwala womwe uli pamwambawu, ulusi wachilengedwe monga thonje, hemp, ubweya, ndi silika ungagwiritsidwenso ntchito kupanga nsalu zosalukidwa.Anthu ena nthawi zambiri amaganiza za nsalu zopanda nsalu ngati mankhwala opangidwa ndi fiber akamatchula nsalu zopanda nsalu, zomwe kwenikweni ndi kusamvetsetsana kwa nsalu zopanda nsalu.Monga nsalu zomwe timavala nthawi zambiri, nsalu zosalukidwa zimagawidwanso kukhala nsalu zopangidwa ndi ulusi wosalukidwa komanso ulusi wachilengedwe wosalukidwa, koma nsalu zokhala ndi ulusi wamankhwala zosalukidwa ndizofala kwambiri.Ndikufuna kukumbutsa aliyense pano kuti sizinthu zonse zomwe zimatchedwa "matawulo a thonje" zopangidwa ndi "thonje" za "thonje".Palinso matawulo a thonje pamsika omwe amapangidwadi ndi ulusi wamankhwala, koma amamva ngati thonje., muyenera kulabadira zosakaniza pogula)
yolembedwa ndi: Ivy
Nthawi yotumiza: May-31-2022
