无机填料改性超高分子量聚乙烯性能研究  

STUDY ON THE INFLUENCE OF INORGANIC-PARTICLE ON THE CHARACTERIZATION OF UHMWPE

作　　者：刘罡[1] 肖利群[1] 叶淑英[1] 别明智[1] 付莉红[1] 

机构地区：[1]煤炭科学研究总院重庆研究院工程塑料应用开发中心,重庆400037

出　　处：《工程塑料应用》2009年第4期23-26,共4页Engineering Plastics Application

摘　　要：采用流动改性剂、偶联剂、无机填料等对超高分子量聚乙烯(UHMWPE)进行改性。旨在保持UHMWPE良好的耐磨、耐冲击等性能的基础上,提高材料的熔体流动性,以能通过注塑机注射成型。通过扫描电子显微镜及力学性能测试等确定其改性效果。结果表明,经改性的UHMWPE的熔体流动性有明显提高,但耐磨损性降低(摩擦系数增大)。该改性UHMWPE被注塑成机械密封垫,经使用证明材料具有良好的加工性能,但耐磨损性有待进一步提高。The properties of UHMEPE was improved by using some rheological modifiers,coupling agents, inorganic-particles. At the base of keeping nicer wearability and izod impact strength of UHMWPE, the melt flow rate of the material was improved. So it could be injection molded. The effect of modification was charicterized by mechanical properties and the data of electron micro- scope. The results showed that the melt flow rate of the material increased, but the anti-wear properties decreased. The mofified UHM- WPE could be used for mechanism gland with good process ability, but its anti-wear properties need be increased more.

关 键 词：超高分子量聚乙烯 丙烯酸酯 二硫化钼 滑石粉 玻璃微珠 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TG115.5[金属学及工艺—物理冶金]