文献类型：期刊文献

中文题名：对叔丁基杯[8]芳烃成核剂对聚乳酸结晶行为的影响

英文题名：Effect of p-tert-Butylcalix[8] arene Nucleating Agent on Crystallization of Polylactic Acid

作者：温亮[1];辛忠[1];胡东康[1]

机构：[1]华东理工大学联合化学反应工程研究所化学工程联合国家重点实验室,上海200237

年份：2010

卷号：39

期号：9

起止页码：1001

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：上海市科委学科带头人计划项目(10XD1401500);高等学校博士学科点专项科研基金项目

语种：中文

中文关键词：成核剂;聚乳酸;结晶;对叔丁基杯芳烃

外文关键词：nucleating agent; polylactic acid; crystallization; p-tert-butylcalixarene

摘要：用DSC和POM技术分析了新型成核剂对叔丁基杯[8]芳烃(TBC8-d)对聚乳酸结晶行为的影响。实验结果表明,TBC8-d是一种高效的聚乳酸成核剂,与纯聚乳酸相比,加入TBC8-d的聚乳酸的结晶温度和相对结晶度分别提高了14.1℃和11.1%;且TBC8-d的成核能力优于传统成核剂滑石粉。等温结晶动力学研究表明,随结晶温度的升高,TBC8-d的加入使聚乳酸的半结晶时间缩短,结晶速率常数增大;用TBC8-d成核的聚乳酸的结晶生长方式为异相成核的三维球晶生长。
Effects of nucleating agent p-tert-butylcalix[8]arene（TBC8-d） on crystallization and melting behaviour of polylactic acid（PLA） were studied by means of DSC and POM.The results showed that TBC8-d was a good nucleating agent and after addition of TBC8-d,crystallization temperature and relative crystallinity of PLA increased by 14.1 ℃ and 11.1%,respectively.The nucleating ability of TBC8-d was stronger than that of the conventional nucleating agent talcum powder.Isothermal crystallization kinetics of PLA showed that addition of TBC8-d could decrease the half crystallization time and increase the crystallization rate constant.The crystallization of PLA with TBC8-d nucleating agent was through three-dimension spherulite growth with heterogeneous nucleation.