Colloid minimum-smoke gunpowder containing difficultly volatile solvent and preparation process of colloid minimum-smoke gunpowder

Abstract

The invention discloses colloid minimum-smoke gunpowder containing a difficultly volatile solvent and a preparation process of the colloid minimum-smoke gunpowder. The colloid minimum-smoke gunpowderis characterized by containing the following components by weight percent: 87%-94% of cellulose nitrate, 1%-3% of difficultly volatile water-soluble glue, 0.5%-3% of diphenylamine, 1%-3% of a passivator, 1%-2% of graphite and 2% of water, wherein the solubility of cellulose nitrate is preferably 40%. The preparation process comprises the following steps: raw material screening and mixing, mechanical kneading, mechanical extrusion forming, mechanical cutting, mechanical passivation, finished product drying and weighing and packing inspection and warehousing. The colloid minimum-smoke gunpowderhas the advantages of high safety performance, good stability, minimum smoke, environmental friendliness, good moisture retention property and the like, is suitable for being added into various fireworks and firecrackers and is low in cost.

Description

technical field [0001] The invention relates to the technical field of pyrotechnic powder, in particular to a colloidal micro-pyrotechnic powder with a low-volatility solvent and a preparation process thereof. Background technique [0002] In recent years, fireworks propellants and fireworks effect drugs have made a lot of improvements and innovations to traditional products in terms of safety, low carbon, and environmental protection, and developed many new materials, new drugs, and new processes, especially around fireworks products. For the smoke-free project, the government and enterprises have invested a lot of funds for this, and established many scientific research teams to carry out year-round research and development. Even so, the ideal effect has not been achieved so far. The main reason is that potassium salts and ammonium salts are used as oxidants and combined with metal combustibles. Although these research and development results have reduced smoke, But there...

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Problems solved by technology

Even so, the ideal effect has not been achieved so far. The main reason is that potassium salts and ammonium salts are used as oxidants and combined with metal combustibles. Although these research and development results have reduced smoke, But there are still many smogs, some pharmaceutical compositions have poor stability, solvents in the compositions are easy to volatilize, and some new materials cannot be used in large quantities due to high material costs and production costs. In a word, from the current research and development New product analysis is difficult to apply to fireworks production due to many defects and potential safety hazards