Z箍缩动态黑腔负载装配用胶粘剂  

Adhesives for assemblage of Z-pinch dynamic hohlraum load

作　　者：杨波[1] 周秀文[1] 何伟[1] 刘旭东[1] 余斌[1] 朱晔[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2013年第2期389-393,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11135007)

摘　　要：由于Z箍缩动态黑腔负载中的低密度聚合物泡沫柱具有多孔结构和极低的力学强度,在装配过程中对胶粘剂有一定的特殊要求。实验以聚氨酯丙烯酸酯为主体树脂,丙烯酸异冰片酯为活性单体,配以光引发剂和偶联剂制得了适用于低密度泡沫粘接用的紫外光固化胶粘剂。测试表明,所研制的胶粘剂的体积收缩率仅为2.25%,且具有较高的固化速率和适当的粘接强度,能够满足稳固、快速装配的要求。通过对粘接界面的观测发现,胶粘剂在诊断孔内没有明显的扩散,且在低密度致密结构泡沫中的扩散厚度较小,均匀性好。The low-density foam of Z-pinch dynamic hohlraum has special requirements to the adhesive because of its porous structure and low mechanical intensity. The present paper reports the preparation of ultraviolet curable adhesives applicable for low-density foam using polyurethane acrylate as prepolymer and isobornyl acrylate as activator diluent. The adhesives were com- pounded by mixing the prepolymer, diluent with photoinitiator and coupling agent. The test results indicate that the volume shrinkage of a prepared adhesive is only 2.25 %, the adhesives have quick curing speed and adequate shear strength to meet the re- quirements of assemblage. According to the interface observation, there are few adhesives entering the diagnose hole, and the dif fuse thickness of adhesives in foam is small and uniform.

关 键 词：Z箍缩 胶粘剂 低密度泡沫 扩散 

分 类 号：TN25[电子电信—物理电子学]