固体推进剂用有机硅烷类键合剂的制备及性能研究  

Study of synthesis and properties of organosilane bonding agents for solid propellants

作　　者：汪慧思 陶博文 张小平 顾健 李磊 黄丹椿 WANG Huisi;TAO Bowen;ZHANG Xiaoping;GU Jian;LI Lei;HUANG Danchun(Science and Technology on Aerospace Chemical Power Laboratory,Xiangyang 441003,China;Academy of Aerospace Solid Propulsion Technology,Shanxi Xi’an 710000,China)

机构地区：[1]航天化学动力技术重点实验室,襄阳441003 [2]航天动力技术研究院,西安710000

出　　处：《固体火箭技术》2020年第1期23-28,共6页Journal of Solid Rocket Technology

摘　　要：将3 异氰酸酯基丙基三甲氧基硅烷,聚乙二醇于65℃进行反应,得到硅烷键合剂BAG-ZD,用FT-IR对反应程度进行跟踪,研究了反应时间、催化剂等对反应的影响程度。结果表明,加入0.1%的二月桂酸二丁基锡,在65℃左右反应3 h时效果最好;对BAG-ZD和WD50(γ-氨丙基三乙氧基硅烷)进行了水解对比实验,通过电导率的变化对水解反应程度进行了分析,BAG-ZD的水解时间比WD50慢210 min;NEPE药浆吸附试验表明,BAG-ZD能有效作用到AlH3表面,且均匀分布;单向拉伸试验结果表明,加入BAG-ZD后,推进剂的拉伸强度和最大伸长率均提高了40%左右。The 3-isocyanatepropyl(trimethoxy)silane is reacted with polyethylene glycol at 65℃to obtain a organosilane bonding agent which was named as BAG-ZD.The effects of reaction time and catalyst on the reaction have been studied by FT-IR technique.The results show that it was the best when the reaction was carried out at 65℃for 3 h with the addition of 0.1%dibutyltin dilaurate.The hydrolysis of Bag-ZD and WD-50(γ-aminopropyltriethoxysilane)was evaluated by the parameter of conductivity,and it shows that the hydrolysis time of BAG-ZD is 210 min slower than that of WD-50.The NEPE slurry adsorption experiment shows that BAG-ZD could be effectively bonded on the surface of AlH 3 and evenly distributed.The result of uniaxial tensile test showed that the tensile strength and maximum elongation of the propellant was increased by about 40%after inclusion of BAG-ZD.

关 键 词：硅烷类键合剂 异氰酸酯基丙基三甲氧基硅烷 AlH3 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]