摘要
采用原位合成法合成了硫化镉纳米微粒,通过静置及高低速离心测试,证明了硫化镉纳米微粒在基础油石蜡中具有良好的分散稳定性.TEM研究表明:合成的纳米颗粒粒径约为16 nm.通过FT-IR表征合成样品,发现油酸分子—COOH部分和硫化镉表面发生了化学性吸附,增强了硫化镉纳米微粒在基础油中的油溶性.用四球摩擦机考察了含硫化镉颗粒的基础油的摩擦学性能,发现添加有油酸修饰的硫化镉纳米颗粒具有显著的抗磨减摩效果.
CdS nanoparticles were in-situ synthesized in liquid paraffin. Centrifugal tests showed that the nanoparticales had good dispersion stability. TEM image shows carboxyl groups of oleic acid were attached to that the average diameter of the CdS nanoparticles was about 16 nm. FT-IR study demonstrated that the surface of CdS nanoparticles combined with the CdS nanoparticales＇ surface by chemical absorption. The organic modification on the CuS nanoparticles surface led to greatly improved oil-solubility. The friction reduction and antiwear behaviors of the prepared oleic acid modified CdS nanoparticles as oil additives in liquid paraffin were evaluated with wear test machine. The result showed that oleic acid modified CuS nanoparticles have good antiwear and friction reduction properties in liquid paraffin.
出处
《中南民族大学学报（自然科学版）》
CAS
2010年第4期17-20,共4页
Journal of South-Central University for Nationalities：Natural Science Edition
基金
湖北省自然科学基金资助项目(2006ABA369)
关键词
原位合成
硫化镉
润滑添加剂
分散稳定性
in-situ synthesis
canmium sulfide （CdS）
lubrication additive
dispersion stability
