Enhancement of thermal stability and degradation kinetics study of poly(vinyl alcohol)/zinc oxide nanoparticles composite

被引：13

作者：

Abd-Elrahman, Mostafa I. ^{[1
]}

机构：

[1] Assiut Univ, Fac Sci, Dept Phys, Assiut 71516, Egypt

来源：

JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS | 2014年 / 27卷 / 02期

关键词：

Composites; poly(vinyl alcohol); zinc oxide nanoparticles; thermal analyses; degradation kinetics; IN-SITU DIFFRACTION; POLYMER/MONTMORILLONITE NANOCOMPOSITES; DECOMPOSITION;

D O I：

10.1177/0892705712473630

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The thermal degradation behaviors of poly(vinyl alcohol) (PVA) and PVA/zinc oxide (ZnO) composite are investigated using differential thermal analysis (DTA). The degradation activation energy (E-d), frequency factor (k(o)) and Avrami exponent (n) as thermal kinetic parameters are calculated from the DTA results. The calculated values of E-d are 80.94 and 148.58 kJmol(-1) for PVA and PVA/ZnO composite, respectively, indicating the enhancement of the PVA thermal stability as ZnO nanoparticles are filled in PVA matrix. The n values are evaluated from the shape analyses of degradation peaks. From estimated n values, the degradation mechanisms are determined for both the complexes under investigation.

引用

页码：160 / 166

页数：7

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