摘要
引言 双酚A环氧树脂是目前应用最广、用量最大的环氧树脂，具有良好的化学稳定性、电气绝缘性被广泛应用于涂料和电子电器等领域；然而，双酚A环氧树脂存在耐热性较差和固化后脆性大等缺点，因此如何提高环氧树脂的耐热性及力学性能等是目前改性研究的热点之一[1-5]。而笼型多面体倍半硅氧烷（POSS）是一类具有（RSiO1.5）。通式的纳米材料，因其特殊的分子组成结构使得POSS具有优异的耐热、介电和抗辐射等性能。
Hybrid epoxy resin composite materials were prepared from choromethyl polyhedral silsesquioxane（CM-POSS）,bisphenol epoxy（E-51）,MeTHPA and TEA.The curing reaction of hybrid epoxy,and mechanical and thermal properties of the cured epoxy were characterized by Fourier transform infrared spectroscopy（FT-IR）,differential scanning calorimetry（DSC）,thermogravimetric analysis（TGA）and heat distortion temperature tester.CM-POSS was connected in cross-linked epoxy resin system by chemical reaction in the curing reaction process.Thermal properties,tensile,bending and impact strengthes of the cured hybrid resin were improved with increased content of CM-POSS.Addition of CM-POSS could make the Tg and rigidity of epoxy resin increase but had little effect on tenacity.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2013年第11期4269-4273,共5页
CIESC Journal
基金
嘉兴市科技计划项目(2009AY2003
2012AY1025)
国家自然科学基金项目(20906038)~~
关键词
氯甲基倍半硅氧烷
环氧树脂
固化反应
热性能
力学性能
chloromethyl polyhedral silsesquioxane
epoxy resin
curing reaction
thermal properties
mechanical properties
