化工进展

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稀土β聚丙烯成核剂研究及应用进展

史建公1,2,蒋绍洋2,张敏宏1,2,赵桂良2,刘志坚3,石勤智3,杨万泰4,赵丽梅5   

  1. 1中国石油化工股份有限公司催化剂分公司博士后工作站;2中国石油化工股份有限公司催化剂
    北京燕山分公司;3中国石油化工股份有限公司催化剂分公司;
    4北京化工大学材料科学与工程学院;
    5中国石油化工股份有限公司北京燕山分公司树脂应用研究所
  • 出版日期:2010-05-05 发布日期:2010-05-05

Advances in research and application of rare earth β-nucleating agents
for polypropylene

SHI Jiangong1,2,JIANG Shaoyang2,ZHANG Minhong1,2,ZHAO Guiliang2,LIU Zhijian3,
SHI Qinzhi3,YANG Wantai4,ZHAO Limei 5
  

  1. 1Post-doctoral Research Station of Sinopec Catalyst Company(SCC);2Beijing Yanshan Branch
    Company of SCC;3Sinopec Catalyst Company;4College of
    Materials Science and Engineering,Beijing University of Chemical Technology;
    5Resin Application Research Institute of Sinopec Bejing Yanshan Branch Company
  • Online:2010-05-05 Published:2010-05-05

摘要: 综述了稀土单核及多核β晶型成核剂的制备方法、组成,全面评述了以La为代表的稀土成核剂在均聚PP、各种共聚PP及再生PP中的应用,介绍了稀土成核剂与α成核剂、稀土成核剂与稀土偶联剂复合应用的进展。对不同种类的PP,稀土成核剂具有很高的β晶型成核能力,成核PP具有热变形温度高、冲击强度大、耐热稳定性好等优点。指出应重点加强稀土成核剂结构、成核机理及与其它助剂复合规律的研究。

Abstract: Rare earth(RE)β nucleating agent,firstly developed for industrial application by Chinese scientists,is one type of β nucleating agents for polypropylene(PP). Preparation methods and compositions of nucleating agents with single- and multi-core RE β crystalline form are described. Application situation of RE β nucleating agents especially La-containing nucleating agents in different PP homopolymer and copolymer are summarized comprehensively. RE β nucleating agents can be used in combining with α- nucleating agents and RE coupling agents with good collaborative effect. In brief,RE β nucleating agent has strong nucleation ability in forming β-PP that has high heat distortion temperature,impact strength and thermal stability etc. Further research for RE β nucleating agent should be focused on their structure and nucleation mechanisms,as well as combination rules with other additives.

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