Studies on the Nonisothermal Crystallization Behavior of Polypropylene/Multiwalled Carbon Nanotubes Nanocomposites

被引：8

作者：

Duan, Qiongjuan ^{[1
]}

Wang, Biao ^{[1
]}

Hong, Bindun ^{[1
]}

Wang, Huaping ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fiber & Polymers, Shanghai 201620, Peoples R China

来源：

JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS | 2010年 / 49卷 / 06期

基金：

上海市自然科学基金;

关键词：

multiwalled carbon nanotubes; nonisothermal crystallization kinetics; polypropylene; MECHANICAL-PROPERTIES; THERMAL-STABILITY; COMPOSITES; KINETICS; NUCLEATION; MORPHOLOGY; FIBERS; MATRIX; DSC;

D O I：

10.1080/00222341003641651

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypropylene/multiwalled carbon nanotubes (PP/MWNTs) nanocomposites were prepared by a melt compounding process. The morphology and nonisothermal crystallization of these nanocomposites were investigated by means of optical microscopy, scanning electron microscopy, and differential scanning calorimetry. Scanning electron microscope micrographs of PP/MWNTs composite showed that the MWNTs were well dispersed in the PP matrix and displayed a clear nucleating effect on PP crystallization. Avrami theory, modified by Jeziorny and Mo's method, was used to analyze the kinetics of the nonisothermal crystallization process. It was found that the addition of MWNTs improved the crystallization rate and increased the peak crystallization temperature of the PP/MWNTs nanocomposites as compared with PP. The results show that the Jeziorny theory and Mo's method successfully describe the nonisothermal crystallization process of PP and PP/MWNTs nanocomposites.

引用

页码：1094 / 1104

页数：11

共 33 条

[1]

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