纳米石墨/聚丙烯酸乙酯复合乳液的合成及其润滑性能研究  

Synthesis of Nanographite/Poly(ethyl acrylate) Compound Latex and its Effect on Lubricational Behavior in a Water-based Fluid

作　　者：官文超[1] 刘益锋[1] 黄明星[1] 

机构地区：[1]华中科技大学化学系,湖北武汉430074

出　　处：《润滑与密封》2005年第3期9-10,19,共3页Lubrication Engineering

基　　金：国家自然科学基金资助项目(50374039).

摘　　要：采用自由基乳液聚合方法合成了纳米石墨/聚丙烯酸乙酯复合乳液,并用四球摩擦磨损试验机对其润滑性能进行了评估。结果表明,一定浓度的纳米石墨/聚丙烯酸乙酯复合乳液可有效提高水基液的承载能力,降低磨损量。采用IRMM对摩擦磨损试验后的钢球磨斑表面进行分析,结果表明磨痕变浅,磨斑减小,有效降低了磨损。Nanographite/poly (ethyl acrylate) compound latex were synthesized through in-situ free radical polymerization of ethyl acrylamide in the presence of the nanographite. The effect of the synthetic product as an additive on the load-carrying capacity and anti-wear behavior of a water-based fluid was investigated on a four-ball machine. The worn surfaces of the steel balls were observed with IRMM. The results show that the polymer at a certain concentration in the base stock effectively raised the load-carrying capacity (pB value) and anti-wear ability.

关 键 词：聚丙烯酸乙酯 复合乳液 纳米石墨 性能研究 合成 四球摩擦磨损试验机 聚合方法 润滑性能 承载能力 高水基液 自由基 磨损量 钢球磨 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业] TQ316.334