Ultra-yakakwirira-molecular-huremu polyethylene (UHMWPE, UHMW) inhengo ye thermoplastic polyethylene.
Iyo inozivikanwawo seyepamusoro-modulus polyethylene, (HMPE), ine cheni dzakanyanya kureba, ine molecular mass kazhinji iri pakati pe3.5 uye 7.5 mamiriyoni amu.The rebecheni rinoshanda kuendesa mutoro zvakanyanya kumusana wepolymer nekusimbisa intermolecular interactions.Izvi zvinoguma mune yakaomesesa zvinhu, ine yakanyanya simba simba reiyo thermoplastic iripo.
UHMWPE haina hwema, haina kunaka, uye haina chepfu.Inosanganisira maitiro ese e-high-density polyethylene (HDPE) ane hunhu hwakawedzerwa hwekuramba kune concentrated acids uye alkalis, pamwe neakawanda organic solvents.Inopikisa zvakanyanya kumakemikari anoparadza kunze kweoxidising acids;ine hunyoro hwakanyanya kunyura uye yakaderera coefficient yekukwesha;iri kuzvizora mafuta (ona boundary lubrication);uye inoshingirira zvakanyanya kuabrasion, mune dzimwe nzira inoshingirira ka15 kuabrasion pane kabhoni simbi.Chikwata chayo chekukweshana chakanyanya kuderera pane chenylon uye acetal uye chinofananidzwa neicho chepolytetrafluoroethylene (PTFE, polymer), asi UHMWPE ine nani abrasion resistance pane PTFE.
Nguva yekutumira: Jun-30-2017