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
收藏
页码：179 / 188
页数：10
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