文献类型：期刊文献

中文题名：硅烷交联LLDPE及其摩擦磨损性能研究

英文题名：Study on Silane Crosslinking LLDPE and Its Friction and Wear Performance

作者：郑苗[1];林珩[1];郑柏存[1];孟鑫[1]

机构：[1]华东理工大学体育新材料研发中心,上海200237

年份：2017

卷号：45

期号：3

起止页码：45

中文期刊名：塑料科技

外文期刊名：Plastics Science and Technology

收录：CSTPCD;;北大核心:【北大核心2014】；

语种：中文

中文关键词：线型低密度聚乙烯;硅烷;交联;摩擦磨损性能

外文关键词：LLDPE; Silane; Crosslinking ; Friction and wear performance

摘要：将自制硅烷接枝母粒和催化母粒按照一定比例熔融共混,通过水煮工艺制备硅烷交联LLDPE。考察了催化母粒用量、交联温度、交联时间对交联LLDPE凝胶含量、力学性能、摩擦磨损性能的影响,并采用扫描电镜表征了试样摩擦表面形貌,探讨了其磨损机理。结果表明:在催化母粒用量10%、水煮温度70℃、交联时间9 h时,试样的凝胶含量达到最大值73.0%,相应的拉伸强度为23.3 MPa。交联LLDPE的磨耗量由纯LLDPE的25.3 g/kg降至0.5 g/kg,摩擦系数由0.62增大到0.70,耐磨损性能显著提高。
Silane crosslinking LLDPE was prepared through the water boiling crosslinking method with a melting mixed silane grafted masterbatch and catalyst masterbatch. The effects of catalytic masterbatch dosage, water bath temperature and crosslinking time on the crosslinked LLDPE gel content, mechanical properties, friction and wear properties were studied. The surface morphology of cross-linked samples was characterized by SEM. Furthermore, the wear mechanism was discussed. The results show that the gel content reaches to a maximum value of 73.0% and the tensile strength is up to 23.3 MPa, when the mixture is boiled at 70℃ for 9 h with 10% catalyst masterbatch dosage. The wear loss of LLDPE decreases from 25.3g/kg to 0.5g/kg and the friction coefficient increases from 0.62 to 0.70, indicating that the wear-resisting performance is greatly improved.