高密度高强度丁羟推进剂配方及工艺性研究  

Development of formulation and process for high density and high strength HTPB propellant

作　　者：李坐社 苏昌银 李葆萱[2] 张爱科 

机构地区：[1]西安航天化学动力厂,西安710000 [2]西北工业大学航天工程学院,西安710072

出　　处：《固体火箭技术》2004年第1期41-45,共5页Journal of Solid Rocket Technology

摘　　要：介绍了高密度、高强度丁羟推进剂的研制。采用一种被称为STR的活性基增强剂来增强HTPB、TDI粘合剂体系的固化网络。用不同含量Cu、Cr、Pb、Fe离子进行压强指数调节,优化了粒度级配,使推进剂具有如下优良特性:固体含量>89%、密度达到1.84g/cm3、20℃抗拉强度σm≈4MPa、良好的工艺性和流变性能、并且在70℃高温下贮存2a力学性能无明显下降。Development of high density and high strength HTPB propellant was presented. An intensifier named STR with active groups was added to enhance curing network of HTPB and TDI binder system. By using different content of Cu, Cr, Pb and Fe ions. The pressure exponent was adjusted, particle size distributions were optimized. The propellant was endowed with excellent performances of solid content >89%, density up to 1.84 g/cm3, tensile strength σm 4 MPa at 20°C, good processability and rheology properties, and its mechanical property isn't significantly declined after storage for two years at 70°C.

关 键 词：密度 强度 丁羟推进剂 配方 工艺性 固体推进剂 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]