In order to improve the mechanical properties of HTPB four component and CL-20/GAP propellants and solve the problem of"dewetting"at the interface of the novel propellant filler matrix,a new Schiff base bonding agent was designed and synthesized.The bonding effect and mechanical properties of the propellant were characterized by Fourier infrared spectrosco-py,scanning electron microscopy and universal material tensioning machine.The results showed that the synthesized new Schiff base bonding agent contained the essential functional groups of the bonding agent and had obvious bonding on the AP surface.The new Schiff base bonding agent was expected to replace the toxic MAPO and significantly improve the mechanical properties of HTPB four component propellant,the strength of HTPB four component propellant reached 0.7 MPa,and the elongation was greater than 55％at room temperature.The elongation at high and low temperature are greater than 50％and 60％respec-tively.The processing performance of HTPB four component propellants can be significantly improved.In CL-20/GAP propel-lant,the new Schiff base bonding agent can improve the strength and elongation of the propellant at the same time.
关键词
材料力学/丁羟推进剂/键合剂/力学性能/Schiff碱/界面脱湿/MAPO
Key words
material mechanics/HTPB propellant/bonding agent/mechanical property/Schiff base/dewetting at the inter-face/MAPO
维普
万方数据