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阐述了超高分子量聚乙烯改性的研究进展以及发展方向;流动改性主要为共混改性和流动改性剂的改性,改性成果已经被推广到了实际应用中;阻燃抗静电改性后UHMWPE的氧指数可提高84%,体积电阻率可以降到2.1×103Ω·cm;使用无机填料改性后,UHMWPE的热变形温度可达到110℃;添加La2O3、纳米Al2O3和石英砂后,UHMWPE的磨粒磨损性能均有提高,石英砂效果最为显著;辐射接枝改性在UHMWPE粘接性改性中的应用较多,但均是对粉料和片材的改性。
The research progress and development direction of UHMWPE modification are described. The modification of flow modification is mainly the modification of blend modification and flow modifier. The modification has been extended to practical application. The flame retardant, antistatic modification The oxygen index of UHMWPE can be increased by 84% and the volume resistivity can be reduced to 2.1 × 103Ω · cm. The thermal deformation temperature of UHMWPE can reach 110 ℃ after modified by inorganic filler. After La2O3, nano-Al2O3 and quartz sand are added, The abrasive wear properties of UHMWPE are all improved, and the effect of quartz sand is the most significant. The application of radiation graft modification in the adhesive modification of UHMWPE is more, but the modification of powder and sheet are all.