Thermoplastic composite solid propellant and preparation method thereof
A technology of solid propellants and thermoplastic elastomers, applied in offensive equipment, explosives processing equipment, explosives, etc., can solve the problems of thermoplastic propellant additive manufacturing cost control, unfavorable control of grain performance stability, etc., and achieve molten slurry viscosity Low cost, low manufacturing cost, and simplified preparation process
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Embodiment 1
[0038] A thermoplastic composite solid propellant, the composition of the solid propellant includes oxidant, metal fuel, thermoplastic binder, thermoplastic elastomer and auxiliary agent;
[0039] Taking the total mass of the solid propellant as 100%, the mass percentage of each component is:
[0040] Oxidant (ammonium perchlorate): 60%;
[0041] Oxidizing agent (modified ammonium nitrate): 4%
[0042] Metal fuel (spherical aluminum powder): 15%;
[0043] Thermoplastic adhesive: 10%;
[0044] Thermoplastic Elastomer: 10%;
[0045] Additives: 1%;
[0046] The thermoplastic binder is one or more than two saturated triglycerides, composed of three elements C, H, and O, with a melting point in the range of 75-85°C and a number-average molecular weight of 700-1000;
[0047] The thermoplastic elastomer is an ethylene-vinyl acetate copolymer with a vinyl acetate content of 15% to 20%;
[0048] The auxiliary agent is a mixture of stearic acid, white carbon black, iron oxide, oct...
Embodiment 2
[0056] A thermoplastic composite solid propellant, the composition of the solid propellant includes oxidant, metal fuel, thermoplastic binder, thermoplastic elastomer and auxiliary agent;
[0057] Taking the total mass of the solid propellant as 100%, the mass percentage of each component is:
[0058] Oxidant (ammonium perchlorate): 60%;
[0059] Oxidizer (RDX): 2%
[0060] Oxidant (HMX): 1%
[0061] Oxidizing agent (TATB): 0.5%
[0062] Metal fuel (PET coated spherical aluminum powder): 15%;
[0063] Thermoplastic adhesive: 15%;
[0064] Thermoplastic elastomer: 5%;
[0065] Additives: 1.5%;
[0066] The thermoplastic binder is one or more than two saturated triglycerides, composed of three elements C, H, and O, with a melting point in the range of 75-85°C and a number-average molecular weight of 700-1000;
[0067] The thermoplastic elastomer is an ethylene-vinyl acetate copolymer with a vinyl acetate content of 15% to 20%;
[0068] The auxiliary agent is a mixture of...
Embodiment 3
[0076] A thermoplastic composite solid propellant, the composition of the solid propellant includes oxidant, metal fuel, thermoplastic binder, thermoplastic elastomer and auxiliary agent;
[0077] Taking the total mass of the solid propellant as 100%, the mass percentage of each component is:
[0078] Oxidant (ammonium perchlorate): 58%;
[0079] Oxidant (NTO): 1%;
[0080] Oxidizing agent (TKX-50): 1%
[0081] Metal fuel (PTFE coated spherical Al 95 Mg 5 Alloy): 20%;
[0082] Thermoplastic adhesive: 8%;
[0083] Thermoplastic Elastomer: 10%;
[0084] Auxiliary: 2%;
[0085] The thermoplastic binder is one or more than two kinds of saturated triglycerides, composed of three elements C, H, and O, with a melting point in the range of 70-80°C and a number-average molecular weight of 500-700;
[0086] The thermoplastic elastomer is an ethylene-vinyl acetate copolymer with a vinyl acetate content of 20% to 30%;
[0087] The auxiliary agent is a mixture of stearic acid, tit...
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