文献类型：期刊文献

中文题名：改性邻苯二甲腈树脂及复合材料性能研究

英文题名：Properties of modified phthalonitrile resin and its composites

作者：王志德[1];白小陶[2];贾宇翔[2];董俊宇[2];步晓君[3];周权[2]

机构：[1]北京航空材料研究院,北京100095;[2]华东理工大学材料科学与工程学院,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;[3]上海固瑞泰复合材料科技有限公司,上海201400

年份：2022

卷号：37

期号：4

起止页码：37

中文期刊名：热固性树脂

外文期刊名：Thermosetting Resin

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

语种：中文

中文关键词：邻苯二甲腈;复合材料;耐热氧化;高温力学性能

外文关键词：phthalonitrile;composite material;heat oxidation resistancy;high temperature mechanical property

摘要：制备了改性联苯型邻苯二甲腈树脂预聚物(BPh-B),并利用示差扫描量热分析、流变分析及热重分析研究了了BPh-B树脂的固化行为、粘度变化以及耐温性能。结果表明,BPh-B树脂可在300℃前固化,但仍需较高温度才能固化完全。其固化物在氮气和空气气氛下的质量损失5%时的温度分别为526℃和520℃。BPh-B增强石英纤维复合材料的力学性能优异,室温和600℃下弯曲强度分别为591 MPa和117 MPa。
The modified biphenyl phthalonitrile resin prepolymer(BPh-B)was prepared.The curing behavior,viscosity change and temperature resistance of BPh-B resin were investigated by DSC,rheological analysis and TGA.The results showed that BPh-B resin could cure at temperature lower than 300 ℃,but higher temperature was needed to cure it completely.The temperature at 5 % mass loss in nitrogen and air atmospheres of the cured resin was 526 ℃ and 520 ℃,respectively.The BPh-B reinforced quartz fiber composites had excellent mechanical properties.The flexural strength of the composites was 591 MPa at room temperature and 117 MPa at 600 ℃,respectively.