PEO在医用聚氨酯表面润滑改性中的研究  

Study on medical polyurethane surface lubricity with modification of PEO

作　　者：伍增勇[1] 彭娅[1] 童荣柏[1] 梅芳芳[1] 孙飞[1] 

机构地区：[1]西华大学材料科学与工程学院,成都610039

出　　处：《化工新型材料》2011年第9期115-117,共3页New Chemical Materials

基　　金：教育部重点研究项目(210193);四川省科技厅应用基础项目(2006J13-055)

摘　　要：采用聚氧化乙烯/聚氨酯互穿网络体系对医用聚氨酯材料表面进行了涂层改性。研究不同浓度的聚氧化乙烯对涂层表面形貌、接触角、吸水性、润滑性、牢固性等性能的影响,结果表明:改性后材料表面的润滑性能有明显提高,当聚氧化乙烯浓度为2.5%时,摩擦系数由改性前的0.455降到0.101;涂层牢固性较好。Surface modification of polyurethane material was achieved by cross-linked PEO/PU coatings.The effects of different concentrations of PEO on surface morphology,water contact angle,water absorption,friction coefficient and firmness were studied.It was revealed that the friction coefficients of the modified surface decreased greatly with the increase of PEO content,which proved that the lubrication of surfaces was improved.When the concentration of PEO was 2.5%,friction coefficient was lowered to 0.101 compared to that of non-modified surface（0.455）.Moreover the PEO/PU modifying coatings had good firmness.

关 键 词：聚氨酯 聚氧化乙烯 表面改性 润滑性 

分 类 号：TQ334[化学工程—橡胶工业]