Polyethylene nthawi zambiri imagawidwa m'gulu limodzi mwa mankhwala akuluakulu angapo, omwe ambiri mwa iwo ndi LDPE, LLDPE, HDPE, ndi Ultrahigh Molecular Weight Polypropylene. Mitundu ina ndi Medium Density Polyethylene (MDPE), Ultra-low-molecular-weight polyethylene (ULMWPE kapena PE-WAX), High-molecular-weight polyethylene (HMWPE), High-density cross-linked polyethylene (HDXLPE), Cross-linked polyethylene (PEX kapena XLPE), Very-low-density polyethylene (VLDPE), ndi Chlorinated polyethylene (CPE).
Polyethylene Yochepa (LDPE) ndi chinthu chosinthasintha kwambiri chokhala ndi mphamvu zapadera zoyendera zomwe zimapangitsa kuti chikhale choyenera kwambiri matumba ogulira ndi ntchito zina zapulasitiki. LDPE ili ndi mphamvu yolimba koma mphamvu yake yotsika yogwira, zomwe zimawonekera m'dziko lenileni chifukwa cha chizolowezi chake chotambasuka ikakanikizidwa.
Polyethylene Yotsika Kwambiri (LLDPE) ndi yofanana kwambiri ndi LDPE, koma imapereka zabwino zina. Makamaka, makhalidwe a LLDPE amatha kusinthidwa mwa kusintha zinthu zomwe zili mu fomula, ndipo njira yonse yopangira LLDPE nthawi zambiri imakhala yochepa mphamvu kuposa LDPE.
Polyethylene Yochuluka Kwambiri (HDPE) ndi pulasitiki yolimba komanso yolimba pang'ono yokhala ndi kapangidwe ka kristalo ka polyethylene-hdpe-trashcan-1. Imagwiritsidwa ntchito nthawi zambiri mu pulasitiki popangira makatoni a mkaka, sopo wochapira zovala, zitini za zinyalala, ndi matabwa odulira.
Polyethylene Yolemera Kwambiri (UHMW) ndi mtundu wokhuthala kwambiri wa polyethylene, ndipo kulemera kwa mamolekyu nthawi zambiri kumakhala kwakukulu kuposa HDPE. Imatha kupotozedwa kukhala ulusi wokhala ndi mphamvu zokoka nthawi zambiri kuposa chitsulo ndipo nthawi zambiri imaphatikizidwa mu ma vesti oteteza zipolopolo ndi zida zina zogwira ntchito bwino.
Nthawi yotumizira: Epulo-21-2023