黏结剂组元对固体润滑涂层性能的影响  

Effect of the Adhesive Composition on the Properties of Solid Lubricant Coatings

作　　者：尹延国[1] 王宇[1] 田明[1] 

机构地区：[1]合肥工业大学摩擦学研究所,安微合肥230009

出　　处：《润滑与密封》2010年第4期1-4,共4页Lubrication Engineering

基　　金：国家自然科学基金项目(50975072);教育部重点项目(108159)

摘　　要：固定石墨、MoS2含量,通过改变黏结剂环氧树脂E54、酚醛环氧树脂F44的比例,设计配比几种黏结固体润滑涂层配方。基体黏结剂热失重分析试验可知,温度超过250℃以后,基体黏结剂开始缓慢分解,温度升高至300℃左右时热分解速度加快,热失重迅速增大,F44的添加可以提高E54环氧树脂的耐热性能。不同载荷条件下黏结固体润滑涂层的摩擦磨损结果表明:黏结剂组元中F44的比例过高或过低都不利于涂层承载能力的提高,当黏结剂组元中F44与E54的比例为3∶2时,黏结涂层体现了较好的摩擦学特性和最高的承载能力。Several compositions of adhesive solid lubricant coatings were designed by adjusting the ratio of E54 and F44 with a certain content of graphite and MoS2. The TGA experimental results show that the matrix adhesive begin to decompose and lose weight slowly,when the temperature exceeds 250 ℃ ;the thermal decomposition and the thermal weight loss increa- ses rapidly,when the temperature reaches to about 300 ℃ ;and the heat-resistance property of Epoxy 54 can be improved by adding F44. The wear and friction tests were carried out on a block-on-ring tribometer HDM-20 under different loads. The investigation indicates that the too high or too low content of F44 is harmful to the coating loading capacity. The better tribologieal characteristics and the highest loading capacity of the coating are achieved while the ratio of F44 and E54 is 3：2.

关 键 词：黏结剂 黏结涂层 摩擦 磨损 

分 类 号：TH117[机械工程—机械设计及理论]