稀土β聚丙烯成核剂研究及应用进展  

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

作　　者：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] 

机构地区：[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,北京102400 [2]中国石油化工股份有限公司催化剂北京燕山分公司,北京102400 [3]中国石油化工股份有限公司催化剂分公司,北京100011 [4]北京化工大学材料科学与工程学院,北京100029 [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,北京102500

出　　处：《化工进展》2010年第5期854-860,共7页Chemical Industry and Engineering Progress

基　　金：中国石化股份有限公司资助项目(208058)

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。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.

关 键 词：Β成核剂 聚丙烯 稀土 力学性能 

分 类 号：TQ426[化学工程]