High Temperature Ablation of Highly Filled Polymer-Layered Silicate Nanocomposites

被引：13

作者：

Paydayesh, Azin ^{[1
]}

Kokabi, Mehrdad ^{[1
]}

Bahramian, Ahmad Reza ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Polymer Engn, Fac Chem Engn, Tehran, Iran

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 127卷 / 04期

关键词：

composites; thermal properties; highly filled nanocomposite; pyrolysis; resole resin; THERMAL PROTECTION SYSTEMS; DEGRADATION BEHAVIOR; COMPOSITE-MATERIAL; PERFORMANCE;

D O I：

10.1002/app.37588

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

At instantaneous thermal shocks and high temperature conditions, using the charring ablative heat shields is more effective than the other heat protection methods. In recent years, low-filled layered silicate polymeric nanocomposites were introduced as new class of ablative materials. In this work, highly filled ablative polymeric nanocomposite is prepared and its thermal stability and ablation mechanism is studied under high external heat flux. The thermal degradation kinetics during pyrolysis, the variation of thermophysical properties as a result of ablation process and mathematical modeling of ablation process are performed for highly filled ablative polymeric nanocomposite samples compared with those of their composite counterparts under oxyacetylene flame test. The results show that the ablation performance of highly filled polymeric nanocomposite is higher than that of the composite, and the mathematical model is adequately confirmed by the experimental data of the thermophysical and ablation properties of highly filled nanocomposites. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 127: 2776-2785, 2013

引用

页码：2776 / 2785

页数：10

共 31 条

[11]

GIBSON AG, 1995, PLAST RUB COMPOS PRO, V23, P175

[12]

KANEVCE LP, 1999, 3 INT C INV PROBL EN

[13]

Koo J., 2004, 45 AIAA ASME ASCE AH

[14] Steady ablation on the surface of a two-layer composite [J].