文献类型：期刊文献

中文题名：α/β复合成核剂调控聚丙烯结晶过程的研究进展

英文题名：Research advance in controlled crystallization of isotactic polypropylene based on α/β compounded nucleating agents

作者：辛忠[1];石尧麒[1]

机构：[1]化学工程联合国家重点实验室,华东理工大学化工学院,上海200237

年份：2012

卷号：31

期号：1

起止页码：126

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(20876042,20806023);上海市优秀学科带头人计划(XD1401500)项目

语种：中文

中文关键词：聚丙烯;结晶;α/β复合成核剂

外文关键词：isotactic polypropylene; crystallization; α/β compounded nucleating agents

摘要：综述了3类广泛应用的α/β复合成核剂对聚丙烯结晶动力学、结晶形态及宏观性能等方面影响的研究进展。总结了影响α/β复合成核剂调控聚丙烯结晶的主要因素在于两种成核剂的成核能力,具体表现为其成核聚丙烯结晶温度(TC)的高低:TC高的成核剂在聚丙烯结晶过程中起主导作用,TC低的成核剂基本不起成核作用,当两者的TC相接近时发生竞争成核。根据这一规律,找出了复合α、β两种成核剂的方法,并列举将其运用到调控聚丙烯的结晶过程中的实例。
Three kinds of well studied α/β compounded nucleating agents（NAs）,phosphate/amide,sorbitol/amide,and phosphate/carboxylate were selected to investigate their influence on the crystallization kinetics,crystallization morphologies,and mechanical proprieties of isotactic polypropylene（iPP）.It can be summarized the key factor of affecting the α/β compounded NAs is the crystallization temperature（TC）.The NA with higher TC plays a leading role in the crystallization process.Competitive nucleation will occur when the difference of TC between two NAs is not pronounced.According to this rule,the optimization method for compounding α and β NAs can be developed.An example of adjusting the stiffness and toughness of isotactic polypropylene based on different of α/β compound nucleating agents was employed.