Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) bụ akụkụ nke polyethylene thermoplastic.
A makwaara dị ka elu-modul polyethylene, (HMPE), ọ nwere oke ogologo n'agbụ, na a molekụla uka na-emekarị n'etiti 3.5 na 7.5 nde amu. The ogologo yinye na-eje ozi na-enyefe ibu n'ụzọ dị irè na polima azụ ọkpụkpụ site ike intermolecular mmekọrịta.Nke a na-ebute ihe siri ike, nke nwere mmetụta kachasị elu nke thermoplastic ọ bụla emere ugbu a.
UHMWPE enweghị isi, enweghị ụtọ, na anaghị egbu egbu.Ọ na-ejikọta njirimara niile nke polyethylene dị elu (HDPE) yana àgwà agbakwunyere nke ịbụ onye na-eguzogide ọgwụ na acid na alkalis, yana ọtụtụ ihe mgbaze organic.Ọ na-eguzogide ọgwụ na-emebi emebi ma e wezụga acid oxidizing;nwere oke mmiri absorption nke ukwuu na obere ọnụọgụ nke esemokwu;bụ mmanye onwe ya (lee mmanu oke);ma na-eguzogide nke ukwuu na abrasion, n'ụdị ụfọdụ na-eguzogide ugboro iri na ise karịa ígwè carbon.Ọnụọgụ esemokwu ya dị ntakịrị ala karịa nke naịlọn na acetal ma yie nke polytetrafluoroethylene (PTFE, polymer), mana UHMWPE nwere nguzogide abrasion ka PTFE.
Oge nzipu: Jun-30-2017