中国塑料 ›› 2009, Vol. 23 ›› Issue (02): 22-26 .DOI: 10.19491/j.issn.1001-9278.2009.02.006

• 材料与性能 • 上一篇    下一篇

PP/PP-g-AMPS共混物非等温结晶动力学研究

王留阳,吕文华   

  1. 江苏工业学学院材料科学与程学院,江苏常州213164
  • 收稿日期:2008-10-01 修回日期:1900-01-01 出版日期:2009-02-26 发布日期:2009-02-26

Non-isothermal Crystallization Kinetics of PP/ PP-g-AMPS Blends

WANG Liu-yang,LU Wen-hua   

  1. School of Materials Scicncc and Enginccring,Jiangsu Polytechnic University,Changzou 213164,China
  • Received:2008-10-01 Revised:1900-01-01 Online:2009-02-26 Published:2009-02-26
  • Contact: WANG Liu-yang

摘要: 采用差不扫描量热法(DSC)研究了聚丙烯与聚丙烯接枝2一丙烯酷胺一2一甲基丙磺酸共聚物(PP-g-AMPS)在不同冷却辣率下的非等温结晶动力学,采用Jeziorny法和莫志深提出的M。法对非等温结晶动力学讲行了分析。研究结果表明,议两种方法能够很好地对聚丙烯及接枝聚丙烯的非等温结晶讨程讲行描沫,AMPS接枝链起到了成核剂的作用,捍高了接枝聚丙烯的结晶速率;PP接枝前后的非等温结晶动力学的Avrami指数n均在3.5-4.3之间,且同一降温速率下,不同样品的n值变化不大,说明聚丙烯的结晶行为没有改变;接枝后PP的结晶活化能提高。

关键词: 聚丙烯, 2一丙烯酷胺一2一甲基丙磺酸, 接枝, 非等温结晶

Abstract: Non-isothermal crystallization kinetics of polypropylene/polypropylene grafted
2-acrylamido-2-mcthylpropancsulfonic acid(PP-g-AMPS)at different cooling rates was studied using differential scanning calorimctry. Jcziorny and Mo methods were used to analyze the DSC data. It showed that both methods described the crystallization behaviors successfully. AMPS side chains did not change the crystallization behaviors obviously,however,increased the crystallization rate. The crystallization activation energy of grafted PP was increased.

Key words: polypropylene, 2-acrylamido-2-mcthylpropancsulfonic acid, grafting, non-isothermal crystallization