环氧树脂改性双酚A型氰酸酯树脂的性能研究  

Studied on properties of bisphenol A cyanate ester modified by epoxy resin

作　　者：欧秋仁[1,2] 嵇培军[2] 肖军[1] 赵亮[2] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016 [2]航天特种材料及工艺技术研究所,北京100074

出　　处：《功能材料》2015年第B12期129-134,共6页Journal of Functional Materials

摘　　要：通过DSC、DMA和TGA、介电性能测试和力学性能测试等方法,研究了环氧树脂用量和分子结构对氰酸酯树脂性能的影响。结果表明,环氧树脂改变了氰酸酯树脂的固化反应历程,降低了氰酸酯树脂的玻璃化转变温度、热分解温度和介电性能,提高了氰酸酯树脂的弯曲强度和冲击强度。含脂环和酯键的三官能团TDE-85树脂与JF-45邻甲酚甲醛环氧树脂相比,在改善氰酸酯树脂力学性能方面较好,在保持氰酸酯的耐热性和介电性能方面相当。Effects of epoxy quantity and molecular structure on properties of modified cyanate ester have been studied by differential scanning calorimetry（DSC）, dynamic mechanical analyzer（DMA）, thermogravimetic a- nalysis（TGA）, dielectric properties testing and mechanical properties testing. The results show that with the adding of epoxy resin the curing reaction mechanism of cyanate ester is changed, glass transition temperature, decomposition temperature and dielectric properties are lowered, as well as the flexural strength and impact strength are increased. The tri-functional group epoxy resin named as TDE-85 with aliphatic cycle and ester bond has better effect on modifying the mechanical properties of cyanate than that of the ortho-cresol formol ep oxy resin named as JF-45, and have the similar effect on the heat resistance properties and the dielectric proper- ties of the cyanate ester.

关 键 词：环氧树脂 氰酸酯 力学性能 耐热性能 介电性能 

分 类 号：TQ32[化学工程—合成树脂塑料工业]