Abstract:

In order to solve the dewetting problem of nitramine propellants, polyether heterocycle amide bonding agent was prepared from glycerin, ethylene oxide, propylene oxide,propanetriol and isocyanuric. After incorporated into a glycidyl azide polymer(GAP)/cyclotetramethylene tetranitramine(HMX)/aluminum powder(Al)/ammonium perchlorate(AP) propellant, its mechanical properties were tested and its tensile fracture surface morphologies were investigated by SEM. The results show that the bonding agent can improve the maximum elongation ratio of the propellant at room, low and high temperatures effectively as well as the adhesion between oxidant and binder. But the tensile strength of the propellant need to be improved.

Key words: Bonding agent, Polyether of heretocycle, tensile strength, elongation ratio