聚醚酰亚胺底涂剂增强石英陶瓷/异种材料胶接性能  

Bonding Properties of Quartz Ceramics/Dissimilar Materials Reinforced by Polyetherimide Primer

作　　者：孙鸣 刘鹏宇 顾渊博[1] 扈艳红[1] 蒋海峰 曾照勇 SUN Ming;LIU Pengyu;GU Yuanbo;HU Yanhong;JIANG Haifeng;ZENG Zhaoyong(Key Laboratory of Specially Functional Polymeric Materials and Related Technology of the Ministry of Education,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;Shanghai Radio Equipment Research Institute,Shanghai 201109,China)

机构地区：[1]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 [2]上海无线电设备研究所,上海201109

出　　处：《制导与引信》2023年第3期56-60,共5页Guidance & Fuze

基　　金：上海航天科技创新基金(SAST2019-77)。

摘　　要：为提高石英陶瓷与低膨胀合金钢、碳纤维复合材料等异种材料的胶接强度,设计并制备了一种新型的含硅烷侧链的聚醚酰亚胺底涂剂(BDA-K),测试了底涂剂增强的石英陶瓷/异种材料的胶接强度,分析了底涂剂对胶接结构的作用机理。研究结果表明:BDA-K可以显著提高石英陶瓷与异种材料的胶接强度;与无底涂剂时相比,石英陶瓷/碳纤维复合材料室温下的胶接强度提升率为45.7%、280℃下胶接强度提升率为67.0%;石英陶瓷/4J36低膨胀合金钢材料室温下的胶接强度提升率为70.4%、300℃下胶接强度提升率为126.0%。A novel polyetherimide primer containing silane side chain(BDA-K)was designed and prepared to improve the bonding strength of quartz ceramics to dissimilar materials such as low expansion alloy steel and carbon fiber composites.The bonding strength of quartz ceramics/dissimilar materials reinforced by the primer was tested.The mechanism of primer on bonding structure was analyzed.The results show that BDA-K can significantly improve the bonding strength between quartz ceramics and dissimilar materials.Compared with no primer,the bonding strength of quartz ceramic/carbon fiber composites is increased by 45.7%at room temperature and 67.0%at 280℃,the bonding strength of quartz ceramic/4J36 low expansion alloy steel is increased by 70.4%at room temperature and 126.0%at 300℃.

关 键 词：石英陶瓷/异种材料 胶接强度 聚醚酰亚胺 底涂剂 

分 类 号：TQ433.43[化学工程]