航空材料学报2012，Vol.32Issue(5)：66-69,4.DOI:10.3969/j.issn.1005-5053.2012.5.011
高硅氧/有机硅复合材料高温弯曲性能研究
Investigation of Flexural Strength of Vycor Glass/Silicone Composites Under High Temperature
摘要
Abstract
The effect of temperature on flexural strength of vycor glass/silicone composites was studied. The results show that the flexural strength decreased with the increasing of the temperature. And there were three dramatical decrease zones existed between 200℃, 300℃ and 600℃. The structure of methyl-phenyl silicone resin at different temperatures was characterized by FT-IR spectrum. The thermostability of the matrix was investigated by using thermogravinetry. The thermodynamic parameters of composites at different temperatures were measured by dynamic mechanical analysis equipment. Meanwhile the morphologies of the flexural fracture surfaces of composites under different temperatures were characterized using SEM. All of the results show that the glass transition, the degradation and pyrolysis of the resin are the main reason that the flexural strength decreased.关键词
温度/弯曲性能/硅树脂复合材料Key words
temperature/ flexural strength/ silicone composites分类
通用工业技术引用本文复制引用
胡春平,刘丽,姜波,黄玉东..高硅氧/有机硅复合材料高温弯曲性能研究[J].航空材料学报,2012,32(5):66-69,4.基金项目
长江学者奖励计划 （）
国家自然科学基金项目(51073047 （）
91016015 （）
50903025) （）
东北林业大学中央高校基本科研业务费专项资金资助(No.DL09AB13) （No.DL09AB13）
