Functionalized multi-walled carbon nanotubes improve nonisothermal crystallization of poly(ethylene terephthalate)

被引：57

作者：

Gao, Yao ^{[1
]}

Wang, Yong ^{[1
]}

Shi, Jing ^{[1
]}

Bai, Hongwei ^{[1
]}

Song, Bo ^{[1
]}

机构：

[1] SW Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China

来源：

POLYMER TESTING | 2008年 / 27卷 / 02期

关键词：

functionalized MWCNTs; poly(ethylene terephthalate); nonisothermal crystallization;

D O I：

10.1016/j.polymertesting.2007.09.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, multi-walled carbon nanotubes were successfully chemically modified by maleic anhydride (f-MWCNTs), and the f-MWCNTs were melt compounded with poly(ethylene terephthalate) (PET) by using a twin-screw extruder to prepare nanocomposites. The effects of f-MWCNTs on the crystallization behavior of PET nanocomposites were studied via DSC and POM. The results show the apparent nucleation effect of f-MWCNTs in PET crystallization. The cold-crystallization peak temperature decreases with the increase of f-MWCNTs during the heating process. On the other hand, the addition of f-MWCNTs can greatly enhance the melt-crystallization peak temperature of PET when it is cooled from the melt. The nonisothermal crystallization kinetics of PET with f-MWCNTs was analyzed by different methods and the results also prove that the f-MWCNTs clearly accelerate the crystallization process of PET. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：179 / 188

页数：10

共 24 条

[21] Effect of carboxy-functionalized multiwall nanotubes (MWNT-COOH) on the crystallization and chain conformations of poly(ethylene terephthalate) PET in PET-MWNT nanocomposites [J].