新型含磷抗磨添加剂的合成及在氟硅油中的摩擦学性能研究  

作　　者：张旭 姜克娟 王迪 

机构地区：[1]中国航发北京航空材料研究院,北京100095

出　　处：《科技创新导报》2020年第10期74-78,80,共6页Science and Technology Innovation Herald

摘　　要：研究对三(三甲基硅基)磷酸酯(TTP)进行了分子改性,合成出改性TTP即三(甲基三硅氧烷基硅基)磷酸酯,采用傅里叶转换红外光谱仪(FT-IR)和核磁共振氢谱仪(~1H-NMR)对目标产物的结构进行了验证;通过MM-W1A型四球抗磨损试验机考察了TTP和改性TTP在氟硅油J20-5-spm和KXY中的减摩抗磨作用;采用扫描电子显微镜(SEM)和X-Ray光电子能谱仪(XPS)对磨斑形貌进行了表征,并分析了化学反应膜的润滑机理。结果表明:TTP可大大改善磨斑形貌;改性TTP可以很好地溶解于氟硅油中,磨斑直径也从1.30mm降到了0.94mm;并指出添加剂分子改性是开发下一代航空发动机氟硅润滑油抗磨添加剂的一种有效手段。The phosphate anti-wear additives of Tr is(tr imethyl-tr isilox y-silyl)phosphate was made f rom the Tris(trimethylsilyl)phosphate through the method of molecular modif ication and then characterized by FT-IR and 1H-NMR.Tribological properties of this liquid as a new kind of promising lubricant for a steel/steel contact were investigated by the four-ball test invaded in f luorosilicone oils J20-5-SPM and KXY.The morphology and element analysis of the worn scar surface were characterized by scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS)respectively.The lubricating mechanism of the f luorosilicone oils was proposed.The results showed that modif ied TTP can be dissolved in f luorosilicone oils well,thus effectively improved the four-ball wear resistance.The method of molecular modif ication was an effective means to develop the anti-wear additives for f luorosilicone oils as the next generation of aviation turbine engine lubricants.

关 键 词：氟硅油 磷酸酯类抗磨添加剂 四球磨损试验 

分 类 号：TH117[机械工程—机械设计及理论]