| abstract |
The invention discloses a thermoplastic composite solid propellant, which comprises, by mass percentage, thermoplastic elastomer with bonding function: 5%-16%; plasticizer: 5%-25%; metal fuel: 5%-18%; Oxidant: 50% to 70%; functional additives: 0.4% to 5%; in this thermoplastic composite solid propellant, a thermoplastic elastomer with functional group grafted or copolymerized is used as a binder, and the binder matrix and the solid filler have The stronger interaction can enhance the interface effect and slow down the occurrence of the "dehumidification" phenomenon in the process of tensile failure; the invention also discloses the preparation method of the above-mentioned thermoplastic composite solid propellant, which overcomes the disadvantages of the prior art. Insufficient, the use of acoustic resonance mixing method to safely and efficiently prepare thermoplastic composite solid propellant, to meet the needs of solid motor fast charging. |