Crystallization behaviour of new poly(tetramethyleneterephthalamide) nanocomposites containing SiO2 fillers with distinct morphologies

被引：17

作者：

Esteves, ACC

Barros-Timmons, AM

Martins, JA

Zhang, W

Cruz-Pinto, J ^{[1
]}

Trindade, T

机构：

[1] Univ Aveiro, CICECO, Dept Quim, P-3810193 Aveiro, Portugal

[2] Univ Minho, Dept Engn Polimeros, IPC, P-4800058 Guimaraes, Portugal

来源：

COMPOSITES PART B-ENGINEERING | 2005年 / 36卷 / 01期

关键词：

polymer-matrix composites (PMCs); nano-structures; thermal properties; thermal analysis;

D O I：

10.1016/j.compositesb.2004.04.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polyamide-based nanocomposites containing surface-modified SiO2 nanofillers with different morphologies were prepared by in situ polymerisation. The nanocomposites microstructure was investigated by scanning electron microscopy, which showed a high degree of dispersion of the fillers. The isothermal crystallization kinetics, recorded with a differential scanning calorimeter, has shown a strong influence of the nanofillers morphology on the poly(tetramethyleneterephthalamide) crystallization behaviour. The strong nucleating effect of the inorganic substrate is interpreted as the combined result of a lower activation energy for the primary nucleation and a higher activation energy for the transport of chain stems to the growing lamellae. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：51 / 59

页数：9

共 36 条

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