PVP在医用聚氨酯表面润滑改性中的研究及应用  

APPLICATION STUDY OF PVP ON LUBRICITY MODIFICATION OF MEDICAL POLYURETHANE SURFACE

作　　者：伍增勇[1] 彭娅[1] 童荣柏[1] 王柯[1] 

机构地区：[1]西华大学材料科学与工程学院,成都610039

出　　处：《工程塑料应用》2010年第3期49-51,共3页Engineering Plastics Application

基　　金：四川省科技厅应用基础项目(2006J13-055);西华大学特种材料及制备技术省高校重点实验室开放研究基金项目

摘　　要：采用聚氨酯(PUR)/聚乙烯吡咯烷酮(PVP)互穿网络体系对PUR材料表面进行涂层改性,研究了不同含量的PVP对涂层表面形貌、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明显提高,当PVP质量分数为2.5%时,摩擦系数由改性前的0.455降到0.074;涂层牢固性较好。利用此法制得的材料能满足目前临床使用中对介入导管润滑性能的要求。Surface modificated polyurethane material was achieved by cross-linked PUR/PVP coatings.The effects of different concentrations of PVP on surface morphology,water absorption,friction coefficient and firmness of the coationgs were studied.The results indicated that the friction coefficients of the modified surface decreased greatly.When the concentration of PVP was 2.5%,the friction coefficient decreased to 0.074 compared to that of non-modified surface（0.455）.Moreover the PUR/PVP coatings had good durability.The lubricition of interventional catheter materials obtained of this method could meet the current clinical use.

关 键 词：聚氨酯 聚乙烯吡咯烷酮 表面改性 润滑性 

分 类 号：TQ436.6[化学工程]