Thermo-oxidative degradation of novel epoxy containing silicon and phosphorous nanocomposites

被引：47

作者：

Chiang, CL

Ma, CCM ^{[1
]}

Wang, FY

Kuan, HC

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 30043, Taiwan

[2] Hung Kuang Inst Technol, Dept Ind Safety & Hlth, Shalu 433, Taiwan

[3] Cheg Shiu Ind Technol, Dept Chem Engn, Kaohsiung 833, Taiwan

来源：

EUROPEAN POLYMER JOURNAL | 2003年 / 39卷 / 04期

关键词：

epoxy; nanocomposite; thermo-oxidative degradation; flame retardance; activation energy; silicon; phosphorous;

D O I：

10.1016/S0014-3057(02)00283-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Modified epoxy nanocomposites containing silicon and phosphorous was prepared and compared with pure epoxy. The study of thermo-oxidative degradation of modified epoxy nanocomposites and pure epoxy has been utilized by thermal analysis. The thermal stability of modified epoxy nanocomposites is not superior to that of the pure epoxy at low temperature, however, the char yield of modified epoxy nanocomposites is higher than that of the pure epoxy at 800 degreesC in air atmosphere. The modified epoxy nanocomposites possess better thermal stability at high temperature range. The values of the limiting oxygen index of pure epoxy and modified epoxy nanocomposites are 24 and 32, respectively. This indicates that modified epoxy nanocomposites possesses better flame retardance. By the Kissinger's method, the activation energies of thermo-oxidative degradation for epoxy nanocomposites are less than those of thermo-oxidative degradation for pure epoxy in first stage of thermo-oxidative degradation. However, the activation energies of thermo-oxidative degradation for epoxy nanocomposites are more than those of thermo-oxidative degradation for pure epoxy in second stage of thermo-oxidative degradation. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：825 / 830

页数：6

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