Low-smoke medicament based on mesoporous silica adsorption and preparation method thereof

By combining the active metal-polymer fluoride with the energy-containing material RDX and introducing surface-aminolated mesoporous silica, a low-smoke-type agent was prepared, which solved the problem of large amounts of smoke and harmful gases in the combustion of traditional fireworks and firecrackers, and achieved high-energy, environmentally friendly and low-smoke characteristics.

CN119874463APending Publication Date: 2025-04-25LIUYANG QIFANG ENVIRONMENTAL PROTECTION MATERIALS CO LTD
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Patent Information

Application Number
CN202510095085.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

The burning of black gunpowder in traditional fireworks and firecrackers produces a large amount of smoke and harmful gases, resulting in air pollution and environmental pollution, and noise pollution will occur when the combustion is not complete.

Method used

A low smoke-type agent based on mesoporous silica adsorption was prepared by compounding the active metal-polymer fluoride with the energy-containing material cyclotrimethylene trinitriamine (RDX) and introducing surface-aminolated mesoporous silica. During the combustion process, the agent reduces the production of smoke and harmful gases through the adsorption and separation of mesoporous silica.

Benefits of technology

The high-energy, environmentally friendly and low-smoking properties of pyrotechnic agents are achieved, the concentration of PM10 and PM2.5 is reduced, the ornamentality of fireworks is improved, and environmental pollution is reduced.

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Abstract

The invention discloses a low-smoke medicament based on mesoporous silica adsorption and a preparation method thereof, and belongs to the technical field of firework medicament composite materials. The preparation process of the low-smoke medicament comprises the following steps: synthesizing a mesoporous silica material, carrying out amination modification on the surface of the mesoporous silica material, introducing the mesoporous silica material into a high-molecular fluoride-active metal medicament system, and compounding with an energetic material RDX to obtain the mesoporous silica adsorbed low-smoke medicament, the concentration rho PM10 of PM10 generated by explosion of the obtained low-smoke medicament is less than or equal to 63mu g / m < 3 >, and the concentration rho PM10 is less than or equal to 63mu g / m < 3 >. And the PM2.5 concentration rho PM2.5 is less than or equal to 35 [mu] g.m < 3 >, and a good low-smoke effect is shown. Compared with the prior art, the aminated mesoporous silica in the obtained pyrotechnic composition can adsorb smoke screen particles generated by explosion, can capture CO2, can reduce the smoke amount in the firework setting-off process and improve the ornamental value of fireworks, has the advantages of being safe, environmentally friendly and green, and has good application value in the field of fireworks and crackers.
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