Investigation of the role of aziridine bonding agents on the aging of the composite solid rocket propellant(CSRP)

The role of bonding agents on the aging characteristics is one of the important research topics.Aging program of the prepared propellant samples was conducting as follows:Five samples,two free of bonding agents,and three containing an aziridine based bonding agents(MAPO,HX-752,MAT4),four samples based on different bonding and curing agents all were aged at 70 ℃.The prepared bonding agent "MAT4" gave remarkable improvements and resulted in highly stable mechanical properties comparing with HX-752 or MAPO.The selected bonding agents family inhibited the rate of decomposition of the propellants during the aging periods and supported the propellant matrix against decomposition at the elevated temperatures.

油气井用小型气体压裂技术发展趋势探讨

油气井用小型气体压裂技术是利用复合固体火箭推进剂在油井中爆燃所产生的高温、高压气体,对井筒周围地层产生脉冲载荷,在地层中形成多条径向裂缝,使井筒与周围地层沟通,即不会损伤井筒,又可达到增产目的。本文针对复合固体火箭推进剂在油气井中应用的情况进行总结梳理,探讨以复合固体火箭推进做功方式为主的小型气体压裂技术在未来的技术发展趋势。