The improved thermal oxidative stability of silicone rubber by using iron oxide and carbon nanotubes as thermal resistant additives

被引：50
作者：
Li, Hongyan [1 ]
Tao, Sen [1 ]
Huang, Yanhua [2 ]
Su, Zhengtao [2 ]
Zheng, Junping [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
[2] Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2013年 / 76卷
基金：
中国国家自然科学基金;
关键词：
Polymer-matrix composites (PMCs); Carbon nanotubes; Oxides; Thermal properties; SINGLE-WALL CARBON; POLY(DIMETHYL SILOXANE); MECHANICAL-PROPERTIES; POLYMER COMPOSITES; KINETIC ASPECTS; DEGRADATION; NANOCOMPOSITES; TEMPERATURE; POLY(METHYLPHENYLSILOXANE); NANOPARTICLES;
D O I：
10.1016/j.compscitech.2012.12.019
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
To investigate the effects of crystalline forms of iron (III) oxide and the bound between gamma-Fe2O3 and carbon nanotubes (CNTs) on the thermal oxidative stability of silicone rubber, a series of silicone rubber based composites filled with CNTs, alpha-Fe2O3, gamma-Fe2O3, a mixture of gamma-Fe2O3 and CNTs, and gamma-Fe2O3 modified CNTs (gamma-Fe2O3 - CNTs) were prepared, respectively. Characterizations of the additives and the composites were performed by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The results indicated that the presence of CNTs affected the crystalline form of attaching Fe2O3 which was changed from a to gamma. gamma-Fe2O3 also got a enlarged special surface area in the gamma-Fe2O3 - CNTs. gamma-Fe2O3 was a more effective thermal resistant additive than alpha-Fe2O3 due to the changes of crystalline form during the thermal aging. A synergy was found in the gamma-Fe2O3 - CNTs and much more changes of valence made gamma-Fe2O3 - CNTs as a more effective thermal resistant additive. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：52 / 60
页数：9
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