Strain Effect on Interfacial Adhesion Between Filler and Binder Matrix in HTPB Propellant

摘要：

By using Scanning Electron Microscope (SEM) and Contact Angle Measurement Instrument to observe and measure the contact angle of the probe liquids to filler AP and binder matrix respectively, this thesis investigated the interfacial adhesion property between the filler and binder matrix of HTPB propellant under 15% and zero strain, during which the work of adhesion and the interfacial tension between the filler and binder matrix were calculated. Results show that under circumstances of both constant and zero strain, the work of adhesion (Wa) is decreased while the interfacial tension (γsl) is increased with the aging time, and the interfacial adhesion of the filler/binder matrix is deteriorated. If ignoring the viscoelastic losses during the crack propagation, the interfacial fracture surface energy can be replaced by the work of adhesion approximately. The critical stress for detachment can be calculated based on the work of adhesion. The critical stress for detachment are declined with the aging time and aging temperature. The interfacial adhesive property can be represented by Wa andγsl. The work of adhesion(Wa) under constant strain is far lower, and the interfacial tension (γsl) is far higher than that under zero strain. Thus the constant strain caused the intensification of the interfacial adhesion of the filler/binder matrix.

作者: ZHANG Xinggao ZHANG Wei LIU Gengran WU Pai NIE Fengquan JIANG Zhijie ZHAO Kexin

作者单位: Research Institute of Chemical Defense,Beijing 102205,China College of Aeronautic and Material Engineering,National University of Defense Technology,Changsha 41 The Academy of Equipment Command &Technology ,Beijing 102200,China

会议类型: 国际会议

会议名称: 2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)

会议地点: 南京

会议语种:英文

页码: 294-299

在线出版日期: 2011-09-20（万方平台首次上网日期，不代表论文的发表时间）