Smokeless and quick lead medicament for fireworks and firecrackers

A technology of fireworks and firecrackers, which is applied in the direction of explosives, etc., can solve the problems of poor moisture-proof effect, poor fluidity of chemicals, high hygroscopicity, etc., and achieve the effects of bright and colorful discharge effects, strong oxidation-reduction ability, and fast burning speed of fuses

Inactive Publication Date: 2011-10-19
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the moisture-proof ammonium perchlorate is used as the oxidant in the medicament, the moisture-proof effect is not good, and the hygroscopicity is still relatively large during the preparation and storage of the lead wire, which affects the burning time and ignition effect of the lead wire; second, the burning speed of the lead wire is about 1cm / s , can not meet the needs of smokeless fireworks such as shelf fireworks and cold light waterfalls for fast leads; in addition, the agent contains a large amount of single and double base powder, and the agent has poor fluidity, which brings certain difficulties to the process of preparing leads

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Each component and mass percent are:

[0020] Ethylenediamine perchlorate Triethyleneethylenediamine perchlorate eutectic compound 90%

[0021] Hemp Stalk Charcoal Powder 5%

[0022] Aluminum powder 2%

[0023] Single and double base powder 3%

[0024] A preparation method of a smokeless and fast-leading agent for fireworks and firecrackers: weighing each component according to the mass percentage, first dissolving the adhesive in a corresponding solvent, mixing the remaining components evenly together, adding the adhesive solution and wet mixing Until the mixed drug is evenly prepared, then the mixed drug is granulated through a standard sieve with a pore size of 80 mesh or more, and then dried. The drying temperature does not exceed 60°C, and it becomes the lead drug after drying.

[0025] Results: The burning speed of the paper fuse is about 6cm / s, the fuse medicine passed the transmittance test, and the smoke concentration was reduced by more than 90% compared w...

Embodiment 2

[0027] The difference between this example and Example 1 is that each component and mass percentage are:

[0028] Ethylenediamine perchlorate Triethyleneethylenediamine perchlorate eutectic compound 55%

[0029] PTFE 30%

[0030] Hemp Stalk Charcoal Powder 10%

[0031] Magnesium aluminum alloy powder 2%

[0032] Starch 3%

[0033] Results: The burning speed of the lead wire was about 2cm / s, the lead drug passed the transmittance test, and the smoke concentration was reduced by more than 90% compared with the currently applicable lead drug.

Embodiment 3

[0035] The difference between this example and Example 1 is that each component and mass percentage are:

[0036] Methylamine Perchlorate · Ethylenediamine Perchlorate Eutectic Compound 50%

[0037] PVC 24%

[0038] Chinese fir charcoal powder 10%

[0039] Nickel powder 15%

[0040] Rice noodles 1%

[0041] Results: The burning speed of the fuse is about 1cm / s, the fuse medicine passes the transmittance test, and the smoke concentration is reduced by more than 90% compared with the currently applicable fuse medicine

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Abstract

The invention provides a smokeless and quick lead medicament for fireworks and firecrackers. The lead medicament mainly comprises, by mass, 50-90% of a eutectic compound of amine perchlorate, 5-25% of carbon powders, 1-20% of metal powders and 1-7% of an adhesive. The smokeless and quick lead medicament for the fireworks and the firecrackers has obvious advantages of no smoke, environmental protection, quick burning and low hygroscopicity.

Description

[0001] A technical field [0002] The invention relates to the field of fireworks and firecrackers, in particular to a formula of smokeless lead agent for lighting fireworks and firecrackers. Two background technology [0003] Fireworks and firecrackers produce a lot of smoke during the setting off process, which seriously affects the effect of setting off fireworks. At the same time, the combustion products contain a large amount of harmful substances and cause serious pollution to the environment. Therefore, various types of smokeless / smoke-free environmentally friendly fireworks have emerged as the times require. However, in the prior art, a large amount of smoke will be produced after the lead wires such as leather paper leads, safety leads, and fast leads are ignited, especially smokeless fireworks products such as smokeless shelf fireworks, cold light waterfalls, indoor fireworks, etc., and firecrackers. A large amount of smoke has seriously affected the effect of sett...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/06
Inventor 关华宋东明刘国生
Owner NANJING UNIV OF SCI & TECH
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