
HDPE高分子聚乙烯板、UPE超高板性能分析
高分子聚乙烯板:1、超高分子量聚乙烯板耐磨损性能居塑料前列,且分子量越大,材料的耐磨性和抗冲击性越高;2、超高分子量聚乙烯板的冲击强度是现有塑料中的很高值,即使在70℃时仍有相当高的冲击强度;3、自润滑;4、超高分子量聚乙烯板吸水率极低。因此,其物理机械性能与使用的工作条件中的湿度因素无关;5、超高分子量聚乙烯板化学性稳定,在一定的温度,浓度范围内能耐酸、碱、盐等各种腐蚀性介质及***的腐蚀;6、超高分子量聚乙烯板无味、***、无嗅,本身无腐蚀性,具有生理循环性和生理适应性.7、不粘附性;8、高密度聚乙烯分子量超过50万时,脆化温度降至140℃。超高分子量聚乙烯甚至可以在液氮作用下,其使用温度可达269以下℃,仍有一定的机械强度。ThewearresistanceofUHMWPEisintheforefrontofplastics,andthehigherthemolecularweight,thehigherthewearresistanceandimpactresistanceofthematerial.2.TheimpactstrengthofUHMWPEsheetisveryhighinexistingplastics,evenat70℃,theimpactstrengthofUHMWPEsheetisstillquitehigh;3,self-lubricating;4,thewaterabsorptionrateofUHMWPEplateisverylow.Therefore,itsphysicalandmechanicalpropertiesareindependentofthehumidityfactorsintheworkingconditi***used;5,UHMWPEplatechemicalstability,inacertaintemperature,concentrationrangecanresistacid,alkali,saltandothercorrosivemediaandorganicsolventscorrosion;6,ultrahighmolecularweightpolyethyleneplateistasteless,non-toxic,odorless,andhasnocorrosivenature,andhasphysiologicalcycleandphysiologicaladaptability.7,non-adhesiveness;WhenthemolecularweightofHDPEexceeds500000,theembrittlementtemperaturedropsto140℃.UHMWPEcanevenbeusedatbelow269℃undertheactionofliquidnitrogen,andstillhasacertainmechanicalstrength.)