Explanation

propellant with nitrocellulose and nitroglycerin or other polyol nitrates as the main energy components. It is an important category of solid propellant. There is no phase interface in it, so it is also called homogeneous propellant. When it is used for gun firing, it is called double base gun propellant. When it is used for rocket motor charging, it is called solid propellant. The composition of the two is basically the same, but the functional components, charging form, and molding process are different. The double base propellant is mainly produced by the spiral extrusion process, and the double base gun propellant is generally manufactured by the press stretch process. The typical formula of double base propellant is: nitrocellulose (nitrogen content 12%) 55%, nitroglycerin 9.3%, intermediate 3.0%, Venturin 1.3%, dinitromethyl 10.0%, lead benzoate 0.9%, and graphite 0.5%. Its density is 1. About 60g/cm3. double base propellant has the characteristics of low combustion temperature and low gas characteristic signal, and is generally used as free loading engine charge.

Classification