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In this paper, nitrocellulose (NC) in order to improve the mechanical strength of the new high-energy propellant azide polymer glycidyl ether (GAP), nitroglycerin (NG) and RDX (RDX) as the main component formulation system for the study of object, through theoretical analysis, the premise of equal energy and detonation temperature, design and research different nitrogen nitrocotton, different azide binder, mixed plasticizer different curing agents and different processes to improve the polymer matrix system dispersed evenly extent and flexible polymer binder chain, at the same time to study the the coated RDX to improve polymer matrix with RDX interface compatibility, plus a reinforcing agent to prevent the slipping of molecular chains to enhance the mechanical properties of the new high energy propellant. The results show that: (1) under the premise of the same energy and detonation temperature, improve the NC nitrogen content can reduce the amount of solid filler of RDX, increase the GAP and the amount of plasticizer, so that the flexible polymer matrix network increases system improving the dispersion of the degree of uniformity, defects are reduced, so that the impact strength of the propellant (α κ ) increased, and the combustion performance of the system have not changed much. NC replaced with a nitrogen content of 13% of the nitrogen content of 12.46% NC, propellant α κ 30%. (2) relative to the NG plasticizer used DEGN and NG mixed plasticizers may be close to the NC and GAP so that the solubility parameter of the plasticizer, thereby kneading the dispersion uniformity of the propellant system is to improve the manufacturing process of extrusion, etc. , the polymer matrix can be more free to stretch, flexible increased, thereby improving the alpha κ (3) using the the branching GAP substituted linear GAP, although the system is dispersion uniformity deteriorates, but since the B-GAP a low glass transition temperature, molecular weight, more bearing capacity atom, so that α κ is improved, an increase of 25%; azide binder, when the use of B-GAP The curing agent IPDI replace N100 can prevent excessive cross-linking of the B-GAP brittle relative to the GAP system, use the IPDI cured B-GAP can propellants α κ 32% increase in (4) Use of macromolecular aqueous polyurethane the coated solid filler RDX (WPU) of RDX, can reduce the surface energy and improve the interface properties of the filler and binder matrix, preventing NG to RDX permeation, thereby the the alpha κ < / sub>, compressive strength σ max and the compression rate ε max have significantly improved. (5) Select the GAP curing process of pre-cured and then kneaded, caused due to the increase in the molecular weight becomes large viscosity of the system is dispersed uniformly lower, but to ensure a sufficient degree of curing of the GAP, and can by itself or with the NC forming a polyurethane or polyurethane urea elastomer transmitter drug alpha of κ good improvement, an increase of 30%.
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