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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and friction properties of copper/PMMA composites by soapless emulsion polymerization
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Synthesis and friction properties of copper/PMMA composites by soapless emulsion polymerization

机译：无皂乳液聚合法合成铜/ PMMA复合材料及其摩擦性能

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摘要

Copper (Cu)-doped polymethylmethacrylate (PMMA) composites were prepared by soapless emulsion polymerization. In this process, copper nanoparticles were modified by sodium oleate (SOA) and the surface property of Cu nanoparticles changed from hydrophilic to hydrophobic. The hydrophobic Cu nanoparticles could not only avoid the oxidation of Cu in air but also improve the compatibility between Cu nanoparticles and PMMA. The TEM micrographs revealed that Cu nanoparticles were encapsulated in PMMA polymer microspheres. In addition, the uniform Cu/PMMA composite microspheres could be synthesized in such a soapless emulsion polymerization process. It was worth mentioning that the friction property in oil was well improved when little nanocomposites were added into the base oil, which indicated that the composites can be widely used in lubricating oil.
机译：通过无皂乳液聚合制备了铜（Cu）掺杂的聚甲基丙烯酸甲酯（PMMA）复合材料。在此过程中，铜纳米颗粒被油酸钠（SOA）改性，并且铜纳米颗粒的表面性能从亲水性变为疏水性。疏水性Cu纳米粒子不仅可以避免空气中Cu的氧化，而且可以提高Cu纳米粒子与PMMA的相容性。 TEM显微照片显示，Cu纳米颗粒被封装在PMMA聚合物微球中。另外，可以在这种无皂乳液聚合方法中合成均匀的Cu / PMMA复合微球。值得一提的是，当在基油中加入很少的纳米复合材料时，在油中的摩擦性能得到了很好的改善，这表明该复合材料可广泛用于润滑油中。

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