纳米改性增强超高分子量聚乙烯复合材料研究进展

纳米材料具有极大的比表面积、宏观量子隧道效应、体积效应和尺寸效应;采用具有特殊性能的纳米材料填充改性聚合物是增强聚合物材料性能的最有效方法之一。通过单相或多相纳米材料填充改性超高分子量聚乙烯(UHMWPE),可使复合材料的性能得到不同程度的改善和提高。综述了纳米材料改性增强UHMWPE复合材料的摩擦学性能、力学性能、电学性能、生物相容性、热学性能等;展望了纳米填充UHMWPE复合材料的发展方向和应用前景;提出采用微量的高性能纳米材料改性聚合物以大幅度提高复合材料的性能是未来研究的重要方向。

Research Progress of Nano-modified Ultra-high Molecular Weight Polyethylene Composites

Nanomaterial has huge specific surface area,macro quantum tunnel effect,volume effect and size effect.It is one of the most effective methods to reinforce polymers′properties by using the nanomaterial which has u-nique performance.Through the single-phase or multiphase nanomaterials-filling and modification,the performance of ultra-high molecular weight polyethylene (UHMWPE)has been improved at varying degrees.The friction and wear properties,mechanical properties,electrical properties,biocompatibility and thermal properties of nanomaterials-filled and reinforced UHMWPE composite materials are reviewed.The development direction and application prospect of UHMWPE-nanofiller composites are prospected.The author suggests that using high performance and microscale nanomaterials to modify polymers and greatly improve the performance of composite materials is the important direc-tion of future research.