Mapepala a polyethylene izi zili choncho chifukwa nthawi zina maunyolo a mamolekyu amatseka makristalo awo, ndikusiya dera lalikulu lopanda mawonekedwe mu biomolecule, ma polyethylene plates amatha kuyamwa mphamvu zambiri za impact kinetic. Malinga ndi zomwe zanenedwa, njira ya ASTM-D256 imagwiritsidwa ntchito kudziwa momwe mphamvu ya pulasitiki imakhudzira. Malinga ndi kuyerekeza, mphamvu ya polyethylene board ingagawidwe mu polycarbonate, polycarbonate imadziwika ndi kukana kwake impact, ndipo ingagwiritsidwe ntchito ngati zinthu za rabara wamba.
Kukana kukangana kwa mbale ya polyethylene ndi kochepa kwambiri. Bolodi ya polyethylene ili ndi kukana bwino kukangana, kukana kukangana kochepa komanso kunyowa bwino. Ndi zinthu zodziwika bwino zopangira bushing, roller ndi bushing. Kusankha bolodi ya polyethylene ngati friction pair, sikuti kungowonjezera nthawi yogwirira ntchito yowonongeka ya malo, komanso board ya polyethylene komanso kungathandize kusunga ndalama.
Bolodi la polyethylene lili ndi kukana kwabwino kwa mankhwala. Bolodi la polyethylene lili ndi kukana kwabwino kwa mankhwala. Kuwonjezera pa nitric acid yokhazikika ndi sulfuric acid, bolodi la polyethylene silili losavuta kujambulidwa mu yankho lililonse la alkaline kapena acidic. Lingagwiritsidwe ntchito ngati hydrochloric acid yochepetsedwa pa 80℃, mu sodium cyanide & LT; Hydrochloric acid & lt; 75% yosalala, lingagwiritsidwenso ntchito ndi madzi ndi kuyeretsa madzi. Monga momwe aliyense akudziwira, bolodi la polyethylene ndi losavuta kutupa mu aliphatic hydrocarbons kapena halogenates (makamaka kutentha kosalekeza), kotero chisamaliro chiyenera kuperekedwa pakugwiritsa ntchito kwake.
Kukweza kukana kwa pulasitiki ya polyethylene. Kukana kwa pulasitiki kwambiri ndi chimodzi mwa zinthu zomwe zimakopa, pulasitiki ya polyethylene m'mapulojekiti ambiri pogwiritsa ntchito mtengo wofunikira. Pa gawoli, pulasitiki yonse ya polyethylene imakhala ndi kukana kwa pulasitiki bwino, ndipo ngakhale zitsulo zambiri sizili bwino monga kale. Pamene kulemera kwa pulasitiki ya polyethylene yopanikizika kwambiri kukukwera, kukana kwa pulasitiki kwa zinthu zamtunduwu kumakulanso. Kukana kwa pulasitiki ya polyethylene. Mphamvu yokakamiza ya pulasitiki ya polyethylene imagwirizana ndi kulemera kwake kwa pulasitiki. Pamene kulemera kwa pulasitiki kuli kochepera 2 miliyoni, mphamvu yokakamiza ya pulasitiki ya polyethylene imawonjezeka ndi kuwonjezeka kwa kulemera kwa pulasitiki, ndipo mtengo wake ndi pafupifupi 2 miliyoni. Pakadali pano, mphamvu yokakamiza ya pulasitiki imachepa ndi kuwonjezeka kwa kulemera kwa pulasitiki.
Nthawi yotumizira: Meyi-31-2022
