超高分子量聚乙烯材料的研究进展

Research progress of ultra high molecular weight polyethylene

超高分子量聚乙烯(UHMWPE)是高性能聚烯烃材料的典型代表,稳定的线性长链结构使其具有高强度、耐冲击、耐磨损、自润滑、耐化学腐蚀、耐低温等诸多优异性能。近年,UHMWPE加工、改性技术日益扩展、优化,形成了多种多样的UHMWPE制品,广泛应用于军民各项领域。本文综述了UHMWPE在催化聚合、纤维、膜、管材、板材及型材等方面的最新进展,重点介绍在各领域应用、加工、改性等方面的研究成果和发展趋势。

Ultra high molecular weight polyethylene(UHMWPE) is an important member of high performance polyolefin materials. Stable linear long chain structure makes it have many excellent properties such as high strength, impact resistance, wear resistance, self lubrication, chemical corrosion resistance and low temperature resistance, etc. In recent years, with research of molecular chain disentanglement and orientation more, the processing and modification of UHMWPE have been increased and optimized increasingly with a variety of UHMWPE products, which are widely used in military and civil fields. In this paper, the progress of UHMWPE in catalytic polymerization, fiber, membrane, pipe,plate and profile was introduced, and the R&D achievements and trends in application, processing and modification were focused.