|本期目录/Table of Contents|

[1]江学良,李凡,范一泓,等.动态交联聚丙烯/乙烯醋酸乙烯酯共聚物结晶行为[J].武汉工程大学学报,2012,(11):1-5.[doi:103969/jissn16742869201211001]
　JIANG Xue liang,LI Fan,FAN Yi hong,et al.Crystallization behavior of dynamic crosslinked PP/EVA blends[J].Journal of Wuhan Institute of Technology,2012,(11):1-5.[doi:103969/jissn16742869201211001]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年11期
页码:
1-5
栏目:
资源与土木工程
出版日期:
2012-12-10

文章信息/Info

Title:
Crystallization behavior of dynamic crosslinked PP/EVA blends
文章编号:
16742869(2012)11000105
作者:
江学良; 李凡; 范一泓; 任军; 吴天骥; 曾溢宇
武汉工程大学材料科学与工程学院，湖北 武汉 430074
Author(s):
JIANG Xueliang;  LI Fan;  FAN Yihong;  REN Jun;  WU Tianji ;  ZENG Yiyu
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074,China
关键词:
聚丙烯; 乙烯醋酸乙烯酯共聚物; 非等温结晶; 动态交联; 异相成核剂
Keywords:
polypropylene;  ethylenevinyl acetate copolymer;  nonisothermal crystallization;  dynamic crosslinked;  neterogeneous nucleation agent
分类号:
TQ325.1+4
DOI:
103969/jissn16742869201211001
文献标志码:
A
摘要:
通过差示扫描量热法（DSC）和X射线衍射（XRD）来研究动态交联聚丙烯（PP）/乙烯醋酸乙烯酯共聚物（EVA）共混物中PP非等温结晶动力学和晶体结构.结果表明：Ozawa方程适合于描述动态交联PP/EVA共混物中PP的非等温结晶动力学过程.EVA颗粒和动态交联的EVA颗粒都能够对PP的结晶起到异相成核剂的作用，促进PP的结晶.PP/EVA共混物和动态交联PP/EVA共混物中的PP结晶活化能(△E)均小于纯PP的△E，且后者略小于前者.共混和动态交联都没有改变共混物中PP的晶体结构.
Abstract:
The nonisothermal crystallization kinetics and crystal structure of dynamic crosslinked polypropylene (PP)/ ethylenevinyl acetate copolymer (EVA) blends was studied by means of Differential Scanning calorimeter (DSC) and Xray diffraction (XRD), respectively. The results show that Ozawa equation is suitable for describing the nonisothermal crystallization kinetics of PP in the dynamic crosslinked PP/EVA blends. EVA particles and the dynamic crosslinked EVA particles are able to play the role of heterogeneous nucleation agent to promote the crystallization of PP. The crystallization activation energy (ΔE) of PP in PP/EVA blends and dynamic crosslinked PP/EVA blends are less than that in pure PP, and the latter is slightly less than the former. Blending and dynamic crosslinked do not change the crystal structure of PP in the blends.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20120914基金项目：湖北省自然科学基金(2011CBD220)；武汉工程大学研究生教育创新基金项目（20110034）；2012年度武汉工程大学校长基金作者简介：江学良(1972)，男，安徽肥东人，副教授，博士.研究方向：有机-无机杂化材料与功能高分子.
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