Pressure index regulator of solid propellant

The present invention relates to a pressure index regulator of a solid propellant. In the prior art, the burning rate pressure index of the PEG/nitrate/nitramine system solid propellant is too high. A purpose of the present invention is to solve the problem in the prior art. The invention provides a pressure index regulator of a solid propellant, wherein Co3O4 and CuO are compounded according to a mass ratio of 1:1 to form the pressure index regulator. According to the present invention, based on the PEG/nitrate/nitramine system solid propellant, after 1.0% of the metal oxide composite pressure index regulator is added, the pressure index of the propellant can be minimized to 0.53 from 0.71 while the burning rate basically remains the unchanged state; and with the promotion of the regulator in the PEG/nitrate/nitramine system propellant, the applications of the propellant formula in the tactical missile engine are promoted, and the important military significance is provided. 本发明涉及种固体推进剂的压强指数调节剂。为了解决PEG/硝酸酯/硝