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Silicone foam material and preparation method thereof

A silicone foam and formula technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of inconvenient maintenance of pipes and cables, inability to compensate for mechanical displacement, no stretch and compression elasticity, etc., to achieve personal safety, good adhesion The effect of good connection performance and sealing performance

Inactive Publication Date: 2009-11-11
HAILONG EMERSON ZHENJIANG ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic blockages are forbidden to be used in some places with strict environmental requirements due to their toxic volatiles; inorganic fireproof cements are non-toxic, but after the blockage is completed, they solidify into hard blocks, without stretching and compression elasticity, and cannot compensate for mechanical damage. The mechanical displacement caused by pipeline vibration and building subsidence, and the maintenance and replacement of pipes and cables through the wall must be knocked out by gravity, which can easily damage the surrounding walls, and the maintenance of pipes and cables is very inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 100kg of α, ω-dihydroxy polydimethylsiloxane, 85kg of calcium carbonate and 30kg of aluminum hydroxide into the multi-functional dispersing mixer in batches and stir. Slowly heat while stirring until the temperature reaches 60°C. Stop heating to obtain α , ω-dihydroxy polydimethylsiloxane mixture. Add 10kg of nonylphenol polyoxyethylene ether, 13kg of methyltrimethoxysilane, 6kg of dibutyltin dilaurate and 10kg of foamable ammonium polyphosphate into the multifunctional dispersing mixer, and mix with the above-mentioned α, ω- Mix the dihydroxypolydimethylsiloxane mixture, control the temperature at 60° C., stir thoroughly for 1.5 hours, and cool the materials to obtain silicone foam.

Embodiment 2

[0027] Add 150kg of α, ω-dihydroxypolydiethylsiloxane, 110kg of activated clay and 50kg of magnesium hydroxide in batches into the multifunctional dispersing mixer and stir, and heat slowly while stirring until the temperature reaches 75°C, stop heating to obtain α , ω-dihydroxy polydiethylsiloxane mixture. Add 15kg of octylphenol polyoxyethylene ether, 18kg of ethyltrimethoxysilane, 8kg of dibutyltin diacetate and 10kg of foamable monoammonium phosphate into the multifunctional dispersing mixer, and mix with the above-mentioned α, ω-dihydroxy The polysiloxane mixture is mixed, the temperature is controlled at 75° C., stirred thoroughly for 2 hours, and the materials are cooled to obtain silicone foam.

[0028] The product of the embodiment of the present invention is through actual inspection, and the results are shown in Table 1.

[0029] The performance index of the silicone foam of the present invention in table 1

[0030] serial number

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PUM

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Abstract

The invention belongs to high polymer fire-proof sealing materials and relates to a silicone foam material and a preparation method thereof. The material has the starting material formulation as follows based on parts by weight: 10-90 parts of alpha, omega-dihydroxyl polysiloxane, 1-10 parts of emulsifiers, 10-90 parts of fillers, 20-50 parts of flame retardants, 1-10 parts of cross linkers, 1-5 parts of catalysts and 5-15 parts of foaming agents. The silicone foam body of the invention is free from impurities, cracks and obvious coarse pores, has fine stretching property, pressure elasticity, toughness, water and air tightness, has heat insulation and refractory oxidation functions, can compensate mechanical displacement caused by mechanical pipeline vibration and building subsidence, has good sealing property, has fine adhesive properties to various metallic and non-metallic materials, has no corrosivity and toxic and harmful components, produces no toxic gas and is secure to human bodies.

Description

technical field [0001] The invention belongs to a polymer fireproof sealing material, and relates to a silicone foam material and a manufacturing method thereof. Background technique [0002] Most of the existing fireproofing blockages use organic fireproofing materials and inorganic fireproofing cement. Organic blockages are forbidden to be used in some places with strict environmental requirements due to their toxic volatiles; inorganic fireproof cements are non-toxic, but after the blockage is completed, they solidify into hard blocks, without stretching and compression elasticity, and cannot compensate for mechanical damage. The mechanical displacement caused by pipeline vibration and building subsidence, and the maintenance and replacement of pipes and cables through the wall must be knocked out by gravity, which can easily damage the surrounding walls, and the maintenance of pipes and cables is very inconvenient. Contents of the invention [0003] The technical prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08K13/02C08J9/04C09K3/10
Inventor 戴金华施吉慧徐殿邦
Owner HAILONG EMERSON ZHENJIANG ENERGY TECH
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