固体推进剂降速剂研究现状及发展趋势

The burning rate reduction effects of different burning rate inhibitors in HTPB propellant, double base propellant, modified double base propellant and NEPE solid propellants are compared, and the burning rate reduction mechanism in different propellants is also summarized. Modified ammonium oxalate and metal salts are the most studied burning rate inhibitors for HTPB propellant; both ordinary and functional burning rate inhibitors can reduce the burning rate of double base propellant; most of the modified double base propellants are sucrose octaacetate(SOA), the burning rate of the propellant is reduced by 2.3-8.12mm/s over the pressure range of 2-15MPa; under the same conditions, the composite or bifunctional burning rate inhibitor in NEPE propellant has better burning rate reduction effect. It is suggested that the key research directions of the burning rate inhibitor in the future should be focused on the following aspects: the development of high-efficient burning rate inhibitors, the in-depth study of composite burning rate inhibitors, the exploration of energetic burning rate inhibitors and the development of micro- or nano-burning rate inhibitors. With 53 references.