摘要
利用热压法分别以纳米SiC和微米SiC作为填料制取了两类不同SiC填充的聚醚醚酮复合材料，并对它们在干摩擦条件下的摩擦磨损性能进行了研究，同时还用扫描电子显微镜对摩擦表面形貌进行了观察，进而对材料的磨损机理作了分析与讨论。研究结果表明，10％（wt）纳米SiC作为填料能有效的改善其填充聚醚醚酮的摩擦磨损性能，而相同含量的微米SiC作为填料只能使其填充聚醚醚酮的耐磨性能有所改善，但没有减摩效果。微米SiC填充聚醚醚酮的磨损方式是以严重的犁削和磨料磨损为主，而纳米SiC填充聚醚醚酮的磨损方式则是以轻微的粘着磨损为主。
The tribological behaviours of polyetheretherketone (PEEK) filled with nanometer SiC and micron SiC were studied. The composite blocks with different sizes of filler were prepared by compression molding. The morphologies of the wear traces and the transfer film were observed by scanning electron microscopy (SEM). It was found that nanometer SiC filled PEEK exhibited considerably lower friction coefficient and wear rate in comparison of the pristine PEEK,The lowest wear rate was obtained with the composite containing 10wt % SiC. The same content micron SiC as filler could only decrease the wear rate of filled PEEK partly. The SEM micrographs of the wear traces with the frictional couple of carbon steel ring/nanometer SiC composite block (filled with 10wt%filler) indicated that a thin,uniform,and tenacious transfer film was formed on thering surface,while the surface of micron SiC filled PEEK was very rough. It was inferred that the transfer film contributed largely to the decreased friction coefficient and wear rate of the PEEK filled with nanometer SiC.
出处
《功能材料》
EI
CAS
CSCD
北大核心
1998年第5期558-560,共3页
Journal of Functional Materials
关键词
纳米碳化硅
微米碳化硅
填充聚醚醚酮
摩擦
磨损
nanometer SiC,micron SiC,filled polyetheretherketone (PEEK),friction and wear properties
