固化对水性环氧粘结固体润滑涂层理化及摩擦学性能的影响  

Influence of Curing on Physicochemical and Tribological Properties of Waterborne Epoxy Resin-Based Bonded Solid Lubricating Coatings

作　　者：王月梅[1,2] 周惠娣[1] 陈建敏[1] 陈磊[1] 冶银平[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《材料保护》2010年第11期7-9,13,共4页Materials Protection

基　　金：国家自然科学基金委创新研究群体科学基金(50421502);国家973计划(2007CB607601)资助

摘　　要：为了确定水性环氧粘结固体润滑涂层的最佳固化条件,采用MFT-R4000型往复摩擦磨损试验仪评价了不同固化条件对其摩擦学性能的影响,用傅立叶变换红外光谱(FTIR)和示差扫描量热法(DSC)表征手段,确定了体系的最佳固化条件。结果表明:固化条件不同,涂层的摩擦学性能差异很大;水性粘结剂与水性固化剂的最佳质量比为2∶1,最佳固化温度为75℃,最佳固化时间为2h;以最佳条件制备的水性环氧粘结固体润滑涂层具有优异的理化性能和摩擦学性能,摩擦磨损寿命比传统的有机溶剂型粘结固体润滑涂层约长30%。本研究为制备高性能环保型粘结固体润滑涂层提供了可能。An MFT-R 4000 reciprocating friction and wear tester was performed to investigate the effect of curing conditions on the tribological properties of waterborne epoxy resin-based bonded solid lubricating coatings. The optimal curing conditions were established by combining Fourier transformation infrared (FTIR) spectrometry with differential scanning calorimetry (DSC). It was found that waterborne epoxy resin-based bonded solid lubricating coatings obtained under different curing conditions possessed different tribological properties. The optimal mass ratio of the epoxy resin emulsion to curing agent was determined to be 2∶1, while the optimal curing temperature and time were suggested as 75 ℃ and 2 h respectively. Resultant waterborne epoxy resin-based bonded solid lubricating coating showed excellent physicochemical and tribological properties, and the antiwear life was longer than that of traditional solvent-based bonded solid lubricating coating by 30%.

关 键 词：固体润滑涂层 水性环氧树脂 粘结固体润滑剂 固化条件 摩擦学性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TH117.3[机械工程—机械设计及理论]