玻璃钢/复合材料Issue(5)：19-23,5.
改性双酚A型氰酸酯树脂体系耐湿热性能的研究
HYDROTHERMAL BEHAVIOURS OF MODIFIED BISPHENOL A DICYANATE ESTER RESIN SYSTEMS
摘要
Abstract
In order to improve the hydrothermal properties of bisphenol A dicyanate ester resin (BADCy) , a novel cyanate ester resin with low dielectric and water absorption performance , which is named 1,4-bis (3 ,5-dimethyl-4-cyanatobenzyl) benzene (BBZCy) , was synthesized and used to copolymerized with BADCy. The water absorption , thermal and dielectric properties of modified cyanate ester resins immersed in the boiling water and the relative humidity environment (RH96% , 50℃ ) were investigated by the methods of the weight measurement, DMA, and dielectric analysis . The results showed that the water absorption, dielectric constant and dissipation factor decreased gradually with the increase of the content of BBZCy. Meanwhile, the hydrothermal properties of modified cyanate ester resins were improved a lot. The modified system with 30wt% BBZCy showed the best performance o-verall, the water absorption at RH96% and 50℃ was 0. 87% , and the glass transition temperature (Tg) , dielectric constant and dissipation factor were respectively 275℃, 2. 90 and 3. 9 × 10 -3 in dry state at 25℃.关键词
氰酸酯树脂/湿热性能/热性能/介电性能/热固性树脂Key words
cyanate ester resins/ hydrothermal properties/ thermal properties/ dielectric properties/ thermoset-ting resins分类
通用工业技术引用本文复制引用
付东旭,王帆,王家樑,余若冰..改性双酚A型氰酸酯树脂体系耐湿热性能的研究[J].玻璃钢/复合材料,2012,(5):19-23,5.基金项目
国家自然科学基金项目(51103038) （51103038）
