Propellant powder and preparation method

Abstract

The invention provides propellant powder and a preparation method. The propellant powder comprises 30-50 parts of potassium permanganate, 8-20 parts of a binding agent, 10-20 parts of potassium hydrogen phthalate and 20-40 parts of a combustible agent, wherein the combustible agent is a mixture of nitrocotton and charcoal powder. The propellant powder has low friction sensitivity and impact sensitivity, low moisture absorption rate and strong thrust and meanwhile reduces the environmental pollution.

Description

technical field

[0001] The invention belongs to the field of gunpowder, and more specifically relates to a propellant and a preparation method. Background technique

[0002] With the development of society, propellants are widely used in daily life and celebration activities. Most of the existing propellants are black powder, whose main components are potassium nitrate, sulfur, fir powder, etc., which adopt traditional manufacturing methods. It has been used for hundreds of years. The main working principle is to ignite the black powder through the fuse to generate upward power to push the fireworks cartridge into the air. There are disadvantages such as easy to be affected by moisture, low safety performance, and easy to cause environmental pollution (the smog is relatively large). In addition, this type of black powder has a low ignition point (398°C), sulfur content, high friction sensitivity, impact sensitivity and moisture absorption rate.

[0003] The existing sulfur...

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