Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) wani yanki ne na polyethylene thermoplastic.
Har ila yau, an san shi da polyethylene high-modulus, (HMPE), yana da sarƙoƙi masu tsayi sosai, tare da adadin kwayoyin halitta yawanci tsakanin 3.5 da 7.5 amu.Wannan yana haifar da abu mai tauri, tare da mafi girman ƙarfin tasiri na kowane thermoplastic da aka yi a yanzu.
UHMWPE ba shi da wari, mara daɗi, kuma mara guba.Ya ƙunshi duk halayen polyethylene mai girma (HDPE) tare da ƙarin halaye na kasancewa masu juriya ga abubuwan da ke tattare da acid da alkalis, da kuma kaushi mai yawa.Yana da matukar juriya ga sinadarai masu lalata sai dai oxidising acid;yana da ƙarancin ƙarancin danshi da ƙarancin juzu'i;yana mai mai da kansa (duba lubrication iyaka);kuma yana da matukar juriya ga abrasion, a wasu nau'ikan kasancewar sau 15 ya fi juriya ga abrasion fiye da carbon karfe.Ƙididdigar sa na gogayya yana da ƙasa da na nailan da acetal kuma yana kama da na polytetrafluoroethylene (PTFE, polymer), amma UHMWPE yana da mafi kyawun juriya fiye da PTFE.
Lokacin aikawa: Yuni-30-2017