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Published on: January 18, 2021
Influence of Solid Filler on the Rheological Properties of Propellants Based on Energetic Thermoplastic Elastomer
Jing Zhang1,2, Zhen Wang1,2, Shixiong Sun3,4
1School of Materials Science and Technology, Beijing Institute of Technology, Beijing 100081, China.
Abstract:
Glycidyl azide polymer-energetic thermoplastic elastomer propellant (GAP-ETPE) has high development prospects as a green solid propellant, although the preparation of GAP-ETPE with excellent performance is still a challenge. Focusing on the demand of high-strength solid propellants for free-loading rocket motors, a GAP-ETPE model propellant with excellent overall performance was prepared in this work, and the influence of adhesive structure characteristics on its fluidity was studied. Furthermore, the influence of filler on the rheological properties of the model propellant was investigated by introducing hexogen (RDX) and Al, and a corresponding two-phase model was established. The results may provide a reference for the structural design, molding process, and parameter selection of high-performance GAP-based green solid propellants.
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