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High-stability fire extinguishing microcapsule and preparation method thereof

A high-stability, microcapsule technology, applied in microcapsule preparation, microsphere preparation, fire prevention equipment and other directions, can solve the problems of short service life, storage leakage of fire-extinguishing microcapsule shell, poor stability of fire-extinguishing microcapsule, etc. Effects of thermal stability, increased strength, enhanced air tightness

Active Publication Date: 2021-10-08
广州十克拉投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the fire extinguishing microcapsules have the technical problem of poor stability, and the outer casing of the fire extinguishing microcapsules is prone to leakage during storage and use, resulting in the problem that the fire extinguishing microcapsules are not easy to store and have a short service life

Method used

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  • High-stability fire extinguishing microcapsule and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] A high-stability fire extinguishing microcapsule includes a shell and a core material, the core material includes a fire extinguishing agent and a thermochromic material that changes color at 100-150°C, and the shell includes an inner layer, an outer layer and an airtight enhancer.

[0040]Among them, 5 parts of perfluorohexanone are used as fire extinguishing agent; 1 part of BiV03 is used as thermochromic material; Formaldehyde resin as the inner layer; modified by the reaction of 5 parts of trimethylol dodecane with 10 parts of hexamethylene diisocyanate and 1 part of gelatin. Polyurethane resin is used as the outer layer; a compound of 3 parts of diisopropyl oxide and lamellar carbon is used as an airtight enhancer.

[0041] The preparation steps of above-mentioned fire extinguishing microcapsules are as follows:

[0042] a) Add 3 parts of airtightness enhancer in the stirring tank, the airtightness enhancer is a composite of diisopropyl oxide and lamellar carbon, ...

Embodiment 2

[0051] A high-stability fire extinguishing microcapsule includes a shell and a core material, the core material includes a fire extinguishing agent and a thermochromic material that changes color at 100-150°C, and the shell includes an inner layer, an outer layer and an airtight enhancer.

[0052] Among them, 4 parts of red phosphorus and 3 parts of Al(OH)3 are used as fire extinguishing agents; 2 parts of leuco dyes are used as thermochromic materials; 3 parts of melamine, 4 parts of 4% formaldehyde solution, 0.4 parts of urea and 3 parts of The melamine-formaldehyde resin produced by the reaction of resorcinol is used as the inner layer; the trimethylol dodecane-diisocyanate adduct produced by the reaction of 4 parts of trimethylol dodecane and 11 parts of isophorone diisocyanate is used The modified polyurethane resin produced by reacting with 2 parts of gelatin is used as the outer layer; the compound of 4 parts of diisopropyl oxide and lamellar carbon is used as the airtig...

Embodiment 3

[0063] A high-stability fire extinguishing microcapsule includes a shell and a core material, the core material includes a fire extinguishing agent and a thermochromic material that changes color at 100-150°C, and the shell includes an inner layer, an outer layer and an airtight enhancer.

[0064] Among them, 4 parts of ammonium polyphosphate are used as fire extinguishing agent; 1 part of BiV03 is used as thermochromic material; The resin is used as the inner layer; the modified polyurethane resin generated by the reaction of 7 parts of trimethylol dodecane and 12 parts of toluene diisocyanate and the modified polyurethane resin generated by the reaction of 3 parts of gelatin are used as the outer layer. layer; use 2 parts of diisopropyl oxide and laminated carbon composite as an airtight enhancer.

[0065] The preparation steps of above-mentioned fire extinguishing microcapsules are as follows:

[0066] a) Add 2 parts of airtightness enhancer in the mixing tank. The airtigh...

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Abstract

The invention relates to a high-stability fire extinguishing microcapsule and a preparation method thereof. The fire extinguishing microcapsule comprises a shell and a core material, the core material comprises a fire extinguishing agent, the shell comprises an inner layer, an outer layer and an airtight promoter, the inner layer comprises modified melamine-formaldehyde resin generated by reaction of melamine, m-phenylenediamine, urea and a formaldehyde solution, the outer layer is made of modified polyurethane resin generated by reaction of a trimethyloldodecane-diisocyanate addition product and a gelatin solution, and the trimethyloldodecane-diisocyanate addition product is generated by reaction of trimethyloldodecane and a diisocyanate compound. The shell of the fire extinguishing microcapsule has the characteristics of high stability, high toughness and high air tightness, leakage of the core material can be effectively reduced, and the service life of the fire extinguishing microcapsule is prolonged.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing products, in particular to a high-stability fire extinguishing microcapsule and a preparation method thereof. Background technique [0002] Fire extinguishing microcapsules disperse the fire extinguishing agent into particles or micro-droplets, and use natural or synthetic polymer materials to form an inert protective shell on its surface. When burning occurs, the protective film of the capsule is destroyed to release the fire extinguishing agent so as to achieve the effect of fire extinguishing and flame retardancy. [0003] In the prior art, the fire-extinguishing microcapsules have the technical problem of poor stability, and the outer casing of the fire-extinguishing microcapsules is prone to leakage during storage and use, which makes the fire-extinguishing microcapsules difficult to store and has a short service life. Contents of the invention [0004] In order to solve the abo...

Claims

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Application Information

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IPC IPC(8): A62D1/00B01J13/02
CPCA62D1/0021B01J13/02
Inventor 荆智强
Owner 广州十克拉投资有限公司
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