Reinforcement and plasticization of PMMA grafted MWCNTs for PVDF composites

被引：14

作者：

Liu, Xi-Qiang ^{[1
]}

Shen, Sen-Qi ^{[1
]}

Wen, Rui ^{[1
]}

Yang, Wei ^{[1
]}

Xie, Bang-Hu ^{[1
]}

Yang, Ming-Bo ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2013年 / 53卷

基金：

中国国家自然科学基金;

关键词：

Thermoplastic resin; Interface; Microstructures; Rheological properties; MULTIWALLED CARBON NANOTUBES; IN-SITU SYNTHESIS; POLY(VINYLIDENE FLUORIDE); POLYMER NANOCOMPOSITES; MECHANICAL-PROPERTIES; DISPERSION; FABRICATION; CONDUCTIVITY; PERCOLATION; NETWORKS;

D O I：

10.1016/j.compositesb.2013.04.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Poly (methyl methacrylate) (PMMA) grafted carboxyl-modified multiwalled carbon nanotubes (MWCNTs-COOH), synthesized through emulsion polymerization, were introduced into polyvinylidene fluoride (PVDF) by solution blending. MWCNTs-COOH aggregated easily in PVDF matrix and the reinforcing effect for the matrix became notable only when the MWCNTs-COOH network structure was formed. However, the grafted PMMA chains on the surface of MWCNTs-COOH reduced the inter-tube interactions and greatly improved the dispersion of MWCNTs in the PVDF matrix. In this case, low grafting degree of PMMA was beneficial to the formation of MWCNTs-COOH network, while high grafting degree of PMMA led to that the contact between MWCNTs became less possible and the network structure of MWCNTs was hard to form. The grafted PMMA chains at high grafting degree showed a plasticization effect in the melt state. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：9 / 16

页数：8

共 55 条

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