Kev kub siab Polyethylene txhais
Qhov siab ntom ntom polyethylene (HDPE) yog cov hmoov dawb dawb lossis khoom lag luam. Cov mob tsis muaj tshuaj lom, tsis muaj kuab, muaj lub hnub ci ci yog 80% ～ 90%, qhov muag muag yog 125 ～ l 35 ℃, ua haujlwm kub tau ncav cuag 100 ℃; hardness, tensile lub zog thiab creep yog zoo dua tsis ntom ntom polyethylene; Zoo hluav taws xob rwb thaiv tsev, toughness thiab txias tsis kam; zoo tshuaj lom neeg ruaj khov, insoluble hauv tej cov kuab tshuaj organic ntawm chav sov, tiv taus corrosion los ntawm kua qaub, alkalis thiab ntau yam ntsev; cov yeeb yaj kiab nyias muaj qhov tsis muaj zog permeability rau dej vapor thiab huab cua, thiab nqus dej tsis tshua muaj siab; kev laus ua hauj lwm tsis zoo, ib puag ncig kev nyuab siab tawg tsis kam ua tsis zoo li qhov tsis muaj hluav taws xob polyethylene, tshwj xeeb tshaj yog cov thermal oxidation yuav txo nws cov kev ua tau zoo, yog li cov roj nplaum yuav tsum tau ntxiv cov tshuaj tua kab mob antioxidant thiab ultraviolet absorbers los txhim kho qhov tsis haum no. High-density polyethylene zaj duab xis muaj qis dua thermal deformation kub hauv qab kev ntxhov siab, yog li them sai sai rau nws thaum thov.