文献类型：期刊文献

中文题名：含硅芳炔树脂改性氰酸酯树脂的性能

英文题名：Properties of Cyanate Ester Modified by Silicone-Containing Arylacetylene Resin

作者：叶清[1];袁荞龙[1];黄发荣[1]

机构：[1]华东理工大学特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2021

卷号：51

期号：2

起止页码：56

中文期刊名：宇航材料工艺

外文期刊名：Aerospace Materials & Technology

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

语种：中文

中文关键词：含硅芳炔树脂;双酚E型氰酸酯;共混;介电性能

外文关键词：Silicone-containing arylacetylene resin;Bisphenol E cyanate ester;Blend;Dielectric properties

摘要：将双酚E型氰酸酯(BEDCy)与含硅芳炔树脂(PSA)用溶液共混的方法制备了共混树脂(BEDCy/PSA);通过DSC和原位红外研究了共混树脂的固化反应,使用TGA和DMA表征了树脂的耐热性能;还考察了共混树脂的介电性能和力学性能。结果表明,PSA树脂能够降低BEDCy树脂的固化温度;随着PSA树脂的添加,氮气和空气氛围下共混树脂固化物的Td5高于450℃,800℃的残留率分别在80%和19%以上;PSA树脂可以降低BEDCy树脂的介电常数和介电损耗。
Bisphenol E cyanate ester(BEDCy)was blended with silicone-containing arylacetylene resin(PSA)to prepare a blended resin(BEDCy/PSA)via solution mixing and evaporation process.The curing reaction of the BEDCy/PSA was studied by DSC and in situ infrared monitoring,the heat resistance of the cured blended resins was characterized by TGA and DMA.The dielectric and mechanical properties of the cured blended resins were further evaluated.The results show that PSA can catalyze the curing reaction of BEDCy.With the addition of PSA resin,the temperature of 5%weight loss and residual yield at 800℃of the cured blended resins under nitrogen and air atmospheres are higher than 450℃,80%and 19%,respectively.The dielectric constant and dielectric loss of the cured BEDCy resin decreases upon addition of PSA resin.