采用中空玻璃微珠改性超高分子量聚乙烯（UHMWPE），提高其耐热性。研究了经偶联剂处理前后玻璃微珠质量分数对UHMWPE/玻璃微珠复合材料维卡软化温度的影响，并对维卡软化温度所呈现的趋势进行了机理假设与分析；对复合材料各种性能进行测试和表征。结论表明：玻璃微珠、UHMWPE、偶联剂共同组成贯穿网络，使UHMWPE的耐热性得到提高；这种网络增加了非晶区内的缠结点密度，使材料的断裂伸长率和冲击强度提高；另外，适量的玻璃微珠能够起到异相成核作用，一定程度上增加了UHMWPE的结晶度。

Ultra high molecule weight polyethylene (UHMWPE) was modified by filling with hollow glass beads in an attempt to improve its heat resistance. The effects of varying the added amount and surface treatment of the glass beads on the Vicat softening point were studied. The properties of the composites were investigated and a possible mechanism for the differences between the properties of the composites and the pristine polymer is suggested. It was found that a web of glass bead/UHMWPE/coupling agent is formed and plays a significant role in improving the heat resistance of the composites. The web also increases the entanglement density in the amorphous region and thereby has the effect of increasing breaking elongation and impact strength. In addition, appropriate amounts of glass beads can increase the crystallinity of UHMWPE via a process of heterogenous nucleation.