硼酸酯偶联剂在HDPE/水镁石复合材料中的应用  

Application of Borate Ester Coupling Agent in HDPE/Brucite Composites

作　　者：张文政[1] 黄丽 马婵[1] 李三喜[3] 

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]辽宁省石油化工规划设计院有限公司,辽宁沈阳110004 [3]沈阳工业大学理学院,辽宁沈阳110178

出　　处：《塑料科技》2013年第11期65-68,共4页Plastics Science and Technology

摘　　要：用自制的硼酸酯偶联剂改性水镁石,然后将改性水镁石添加到高密度聚乙烯(HDPE)中制得HDPE/水镁石复合材料,并对其进行氧指数、力学性能和微观形貌等测试。结果表明:经硼酸酯偶联剂处理的水镁石的活化指数可达49.7%;活化水镁石用量为50%时,HDPE/水镁石复合材料的氧指数达到24.1%,冲击强度由纯HDPE的6.2 kJ/m2提高到7.9 kJ/m2。SEM测试结果表明:改性水镁石与HDPE基体的相容性较好,并具有良好的增韧作用。The brucites was modified by self-made borate ester coupling agent, and then the HDPE/brucite composites were prepared by adding modified brucites into HDPE. The oxgen index （OI）, the mechanical properties and fracture morphology of HDPE/brucite composites were studied. The results show that the optimal activation index of modified brucites can reach to 49.7%; when the amount of activation brucite is 50%, the OI reaches to 24.1%, and the impact strength can increase from 6.2 kJ/m2 to 7.9 k J/m2. The results of SEM show that the compatibility between modified brucite and HDPE is good, and the toughening effect is also good.

关 键 词：高密度聚乙烯 硼酸酯 水镁石 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]