| 聚氨酯/环氧树脂互穿网络半硬泡沫的热稳定性 |
| |
| 引用本文： | 花兴艳,王源升,赵培仲,朱金华.聚氨酯/环氧树脂互穿网络半硬泡沫的热稳定性[J].高分子材料科学与工程,2009(10). |
| |
| 作者姓名： | 花兴艳 王源升 赵培仲 朱金华 |
| |
| 作者单位： | 海军工程大学理学院化学与材料系;海军工程大学训练部;91006部队; |
| |
| 摘 要： | 制备了聚氨酯/环氧树脂互穿网络半硬泡沫,通过热重分析(TGA)研究了其热分解,计算了各分解阶段的热分解反应动力学参数。结果表明,氮气中,互穿聚合物网络(IPN)泡沫根据环氧树脂含量不同其分解过程有2~3个失重阶段,随着环氧含量增加,第一阶段的失重率减小,第二阶段的失重率增大。IPN泡沫在第一、二两阶段总的热失重率低于纯聚氨酯泡沫及纯环氧树脂。环氧树脂含量为30%(质量分数,下同)时泡沫的热稳定性最好。预测IPN半硬泡沫在100℃氮气中失重5%时的热老化寿命可达2.4E7年,表明IPN泡沫具有很好的热稳定性。
|
| 关 键 词： | 聚氨酯/环氧树脂互穿聚合物网络 半硬泡沫 热分解 动力学 |
Thermal Stability of Semirigid Polyurethane/Epoxy Interpenetrating Polymer Networks Foams |
| |
| HUA Xing-yan,WANG Yuan-sheng,ZHAO Pei-zhong,ZHU Jin-hua.Thermal Stability of Semirigid Polyurethane/Epoxy Interpenetrating Polymer Networks Foams[J].Polymer Materials Science & Engineering,2009(10). |
| |
| Authors: | HUA Xing-yan WANG Yuan-sheng ZHAO Pei-zhong ZHU Jin-hua |
| |
| Affiliation: | HUA Xing-yan1,WANG Yuan-sheng2,ZHAO Pei-zhong3,ZHU Jin-hua1(1.Department of Chemistry and Materials,College of Science,Naval University of Engineering,2.Administrative Office of Training,Wuhan 430033,China,3.Unit 91006,Hefei 231614,China) |
| |
| Abstract: | A series of semirigid polyurethane/epoxy interpenetrating polymer networks(PU/ER IPN) foams were prepared by a simultaneous polymerization technique.The thermal degradation behaviors of the IPN foams were studied by thermogravimetric analysis(TGA),and the kinetic parameters were calculated.TGA revealed the degradation of the IPN foams as a two or three-step mass loss process in presence of nitrogen.As ER content increases,the mass loss in the first step decreases while in the second step increases.The total... |
| |
| Keywords: | polyurethane/epoxy interpenetrating polymer networks semirigid foam thermal degradation kinetics |
| 本文献已被 CNKI 等数据库收录！ |
|
