| 动态固化PP/MAH-g-PP/EP共混物的等温结晶动力学 |
| |
| 引用本文： | 江学良,张隐西.动态固化PP/MAH-g-PP/EP共混物的等温结晶动力学[J].高分子材料科学与工程,2009(9). |
| |
| 作者姓名： | 江学良 张隐西 |
| |
| 作者单位： | 武汉工程大学材料科学与工程学院;等离子体化学与新材料湖北省重点实验室;上海交通大学高分子材料研究所; |
| |
| 摘 要： | 分别用Avrami方程和Hoffman结晶理论研究了马来酸酐接枝聚丙烯(MAH-g-PP)增容的动态固化聚丙烯(PP)/环氧树脂(EP)共混物中PP等温结晶动力学。实验结果表明,动态固化PP/MAH-g-PP/EP共混物中环氧颗粒可作为PP的成核剂,能显著促进PP的结晶。根据Avrami方程,动态固化PP/MAH-g-PP/EP共混物中PP的结晶速率常数K(T)明显大于纯PP的K(T)。依据Hoffman理论研究动态固化PP/MAH-g-PP/EP共混物结晶热动力学,动态固化PP/MAH-g-PP/EP共混物折叠链表面自由能(σe)明显小于PP折叠链表面自由能(σe)。
|
| 关 键 词： | 聚丙烯 环氧树脂 动态固化 等温结晶动力学 |
Isothermal Crystallization Kinetics of Dynamically Cured PP/MAH-g-PP/Epoxy Blends |
| |
| JIANG Xue-liang,ZHANG Yin-xi.Isothermal Crystallization Kinetics of Dynamically Cured PP/MAH-g-PP/Epoxy Blends[J].Polymer Materials Science & Engineering,2009(9). |
| |
| Authors: | JIANG Xue-liang ZHANG Yin-xi |
| |
| Affiliation: | JIANG Xue-liang1,ZHANG Yin-xi2(1. School of Materials Science and Engineering,Province Key Laboratory of Plasma Chemistry and Advanced Materials,Wuhan Institute of Technology,Wuhan 430073,China,2. Research Institute of Polymer Materials,Shanghai Jiaotong University,Shanghai 200030,China) |
| |
| Abstract: | The isothermal crystallization of dynamically cured polypropylene (PP)/epoxy (EP) blends compatibilized with maleic anhydride grafted PP (MAH-g-PP) was studied by Avrami equation and Hoffman crystallization theory,respectively. The results show that cured epoxy particles act as effective nucleating agents,accelerating the crystallization of PP component in dynamically cured PP/MAH-g-PP/EP blends. Based on Avrami equation,the kinetic constant K(T) of PP crystallization in the PP/epoxy blends is higher than t... |
| |
| Keywords: | polypropylene epoxy resin dynamical cure isothermal crystallization kinetics |
| 本文献已被 CNKI 等数据库收录！ |
