Polyethylene pulasitiki ndi polyethylene monga chigawo chachikulu

Chigawo chachikulu cha pulasitiki polyethylene ndi polyethylene. Ethylene yake yopangira mafuta makamaka imachokera ku ming'alu ya petroleum ndi kusweka, yomwe ndi yamafuta a petrochemical.

polyethylene (PE) ndi imodzi mwazinthu zazikulu zisanu zopangira utomoni, ndipo ndi mitundu yomwe imakhala ndi mphamvu zambiri zopangira komanso kuchuluka kwake komwe kumalowetsa m'dziko lathu. Polyethylene imagawidwa m'magulu atatu: polyethylene yotsika kwambiri (LLDPE), polyethylene yotsika kwambiri (LDPE), ndi polyethylene yapamwamba kwambiri (HDPE).

ntchito

Kukulunga kwa pulasitiki, matumba apulasitiki amtundu wa vest, matumba a grocery apulasitiki, mabotolo a ana, zotengera, mabotolo amadzi, ndi zina.

khalidwe

PE ndi yofewa ndipo imakhala ndi mawonekedwe a waxy mpaka kukhudza. Poyerekeza ndi pulasitiki yemweyo, ndi yopepuka kulemera kwake ndipo ili ndi mlingo wina wowonekera. Ikayaka, lawi lamoto limakhala labuluu.

Toxicity

Zopanda poizoni komanso zopanda vuto kwa thupi la munthu.

Zinthu zakuthupi za pulasitiki ya polyethylene

Kukana kwa dzimbiri, kusungunula kwamagetsi kwabwino kwambiri (makamaka kusungunula kwamphamvu kwambiri), kumatha kuthiridwa ndi chlorine, kuyatsa ndi kusinthidwa, ndipo kumatha kulimbikitsidwa ndi ulusi wagalasi. Polyethylene yokwera kwambiri imakhala ndi malo osungunuka kwambiri, osasunthika, kuuma ndi mphamvu, komanso kuyamwa kwamadzi otsika. Good magetsi katundu ndi cheza kukana; otsika kachulukidwe polyethylene ali kufewa zabwino, elongation, mphamvu mphamvu ndi permeability; ultra-high molecular weight polyethylene imakhala ndi mphamvu zambiri, kukana kutopa komanso kukana kuvala. Polyethylene yolimba kwambiri ndiyoyenera Itha kugwiritsidwa ntchito popanga zida zolimbana ndi dzimbiri ndi zida zoteteza; otsika kachulukidwe polyethylene ndi oyenera kupanga mafilimu, etc.; ultra-high molecular weight polyethylene ndi oyenera kupanga mayamwidwe mantha, kusamva kuvala ndi kufala mbali.