摘要
为增强增韧再生高密度聚乙烯(RHDPE),采用钛酸酯偶联剂(TCA)和马来酸酐接枝聚乙烯(MAH-g-PE)对填料滑石粉(Talc)进行了协同表面改性,考察了改性剂的配比对RHDPE/Talc复合材料力学性能与结晶性能的影响。结果表明:当TCA、MAH-g-PE的含量分别为Talc的0.5%和40%时,RHDPE/Talc复合材料的拉伸强度增幅最大;当TCA、MAH-g-PE的含量分别为Talc的1.0%和16%时,复合材料的弯曲强度增幅最大。随着MAH-g-PE含量的增加,RHDPE/Talc复合材料的熔融温度提升、结晶度增大;而加快升降温速率,则会使复合材料的熔融温度升高、结晶温度下降,同时导致晶区紊乱、结晶粒径差异增大。
In order to enhance and toughen high density polyethylene(RHDPE), the talcum powder(Talc) was synergetic surface modifi ed by titanate coupling agent(TCA) and maleic anhydride grafted polyethylene(MAH-g-PE) with different ratios. The mechanical properties and crystallinity of the RHDPE/Talc composites were researched. The results show that: the tensile strength increases to the largest when the contents of TCA and MAH-g-PE(relative to the weight of Talc) are 0.5% and 40%, respectively;and the flexural strength increases to the largest when the contents of the TCA and MAH-g-PE(relative to the weight of Talc) are 1.0% and 16%, respectively. The melting temperature and the crystallinity of RHDPE/Talc composites improve with the increasing content of MAH-g-PE. Moreover, with the accelerating of the heating and cooling speed, the melting temperature raises, the crystallization temperature deduces, the crystalline disorder and the inconsistency of crystal sizes appears.
作者
吴正环
赵学礼
王权
董晓传
陈阳
孙婷
叶勇
董和生
Wu Zhenghuan;Zhao Xueli;Wang Quan;Dong Xiaochuan;Chen Yang;Sun Ting;Ye Yong;Dong Hesheng(National-Local Joint Engineenng Laboratory of Intelligent Manufacturing Oriented Automobile Die&Mould,Tianjin 300222,China;School of Mechanic and Engineering,Tianjin University of Technology and Education,Tianjin 300222,China;Key Laboratory of Tianjin Automobile Injection Mold Enterprise,Tianjin 300222,China;Logistics Management Department,Tianjin University of Technology and Education,Tianjin 300222,China)
出处
《塑料科技》
CAS
北大核心
2019年第1期15-21,共7页
Plastics Science and Technology
基金
天津市智能制造重大专项(17ZXZNGX00100)
天津市高校“中青年骨干创新人才培养计划”(RC180202)
天津市教委科研计划项目(2017KJ104,2017KJ101)
天津高校科技发展基金项目(JWK1711)
大学生创新创业训练计划项目(GJ201733)
天津职业技术师范大学研究发展项目(XJKC031420,XJKC031451,KJ11-06,KJY14-03)
天津职业技术师范大学“me+”创客空间项目(20172102)
