氢氧化铝填充β-聚丙烯复合材料的制备和性能研究  

Preparation and Properties of Aluminium Hydroxide Filled β-Nucleated Polypropylene Composites

作　　者：丁茜 武理俊 章自寿 麦堪成 DING Qian;WU Li-Jun;ZHANG Zi-shou;MAI Kan-cheng(School of Packaging Design and Art,Hunan University of Technology,Zhuzhou 421007,China;Key Laboratory of High Performance Polymer Based Composites of Guangdong Province,Key Laboratory of Polymeric Composites and Functional Materials of Ministry of Education,Materials Science Institute,School of Chemistry,Sun Yat-sen University,Guangzhou 510275,China)

机构地区：[1]湖南工业大学包装设计艺术学院,湖南株洲421007 [2]中山大学化学学院材料科学研究所聚合物基复合材料及功能材料教育部重点实验室广东省高性能树脂基复合材料重点实验室,广东广州510275

出　　处：《塑料工业》2019年第8期114-117,共4页China Plastics Industry

基　　金：国家自然科学基金资助项目(51373202,51703058);湖南省教育厅资助项目(18B292)

摘　　要：为获得高性能填充聚丙烯(PP)复合材料,采用氢氧化铝(ATH)为无机增强粒子,负载庚二酸钙硅灰石(即负载型β成核剂β-W)和庚二酸钙(CaPA)为结晶改性剂。研究了ATH和结晶改性剂对PP结晶行为、β晶含量和力学性能的影响。结果表明,ATH、β-W和CaPA对PP结晶都具有异相成核作用,能够提高PP的结晶温度;ATH填充PP复合材料只形成α-晶,而β-W和CaPA可诱导PP形成β-晶;ATH对PP具有增强作用,能够提高PP的拉伸模量和弯曲模量,但ATH填充PP复合材料的冲击韧性不及ATH填充β-PP复合材料。In order to obtain high-performance filled polypropylene(PP)composites,aluminium hydroxide(ATH)was used as inorganic reinforced particle,and supported β-nucleating agent(β-W)and calcium pimelate(CaPA)were used as crystal modifier.The influence of ATH,β-W and CaPA on the crystallization behavior,the relative contents of β-phase,and mechanical properties were systematically studied.The results indicate that ATH,β-W and CaPA have heterogeneous nucleation on the crystallization of PP,and the addition of them could increase the crystallization temperature of PP.ATH filled PP composite could only form α-crystals,while β-W and CaPA could induce the formation of β-crystals.The tensile and flexible modulus of PP are improved due to the enhancement effect of ATH,however,the impact toughness of ATH filled PP composites is lower than that of ATH filled β-PP composites.

关 键 词：聚丙烯 结晶改性 β成核作用 增韧 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]