High-density fireproof silicone adhesive and preparation process thereof

A silicone rubber, high-density technology, applied in the rubber field, can solve problems such as inconvenience, high price, and unenvironmental protection, and achieve the effects of broad application prospects, low production cost, and good radiation resistance.

Pending Publication Date: 2019-03-19
深圳市东信硅材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing fire-resistant silicone rubber can meet the fire-proof requirements through flame-retardant powder, it has disadvantages such as not being environmentally friendly, having poor temperature resistance, poor acid and alkali resi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] A one-component condensed silicone rubber with high-density and fire-resistant, including the following raw materials by weight: 100 parts of 107 glue, 5 parts of 201 silicone oil, 150 parts of mica iron oxide, 80 parts of quartz powder, and 5 parts of fumed silica , 10 parts of crosslinking agent, 1.5 parts of aminopropyltriethoxysilane and 0.1 part of catalyst. The crosslinking agent includes methyl tributyrin and vinyl tributyrin, and the mass ratio of methyl tributyrin and vinyl tributyrin is 4:1.

[0021] The viscosity of 107 glue is 8000CS, the weight fraction of hydroxyl is 0.06%, the viscosity of 201 silicone oil is 500CS, the particle size of mica iron oxide is 10-1000 mesh, the particle size of quartz powder is 10-10000 mesh, fumed silica The specific surface area is 150 square meters / g.

[0022] Disperse 107 glue, 201 silicone oil, mica iron oxide and quartz powder in a stirrer evenly, and then lower the vacuum to minus 0.08MPa at a temperature ...

Example Embodiment

[0023] Example 2

[0024] A one-component condensed silicone rubber with high-density fire resistance, comprising the following parts by weight of raw materials: 100 parts of 107 glue, 10 parts of 201 silicone oil, 120 parts of mica iron oxide, 50 parts of quartz powder, 100 parts of nano calcium carbonate, 8 parts of methyltrimethylsilane, 1.5 parts of glycidoxypropyltrimethoxysilane and 0.4 parts of catalyst.

[0025] The viscosity of 107 glue is 8000CS, the weight fraction of hydroxyl is 0.06%, the viscosity of 201 silicone oil is 500CS, the particle size of mica iron oxide is 10-1000 mesh, and the particle size of quartz powder is 10-10000 mesh. The particle size is 40-60 microns.

[0026] Disperse 107 glue, 201 silicone oil, mica iron oxide, nano-calcium carbonate and quartz powder in a stirrer evenly, and then lower the vacuum to minus 0.05 MPa at a temperature of 150 degrees Celsius for 3 hours to obtain the first mixture. After the mixture is cooled to room temperature, met...

Example Embodiment

[0027] Example 3

[0028] A two-component condensed silicone rubber with high-density and fire-resistant, including the following raw materials by weight: 100 parts of 107 glue, 5 parts of 201 silicone oil, 100 parts of mica iron oxide, 80 parts of quartz powder, and 0.5 parts of fumed silica , 30 parts of tetraethoxysilane, 20 parts of coupling agent and 0.1 part of catalyst. The coupling agent includes glycidoxypropyltrimethoxysilane and aminopropyltriethoxysilane. The mass ratio of glycidoxypropyltrimethoxysilane and aminopropyltriethoxysilane is 1:1.

[0029] The viscosity of 107 glue is 750CS, the weight fraction of hydroxyl is 0.2%, the viscosity of 201 silicone oil is 350CS, the particle size of mica iron oxide is 10-1000 mesh, and the particle size of quartz powder is 10-10000 mesh.

[0030] Disperse 107 glue, 201 silicone oil, mica iron oxide, fumed white carbon black and quartz powder in a stirrer evenly, then reduce the vacuum to minus 0.08MPa for 2.6 hours, cool to room...

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PUM

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Abstract

The invention discloses high-density fireproof silicone adhesive and a preparation process thereof. The silicone adhesive is prepared from the following raw materials in parts by weight: 95-108 partsof base adhesive, 0-30 parts of plasticizer, 50-300 parts of scale-like powder, 0-150 parts of unreinforced powder, 0-100 parts of reinforced filler, 0.01-20 parts of crosslinker, 0-5 parts of couplerand 0.0001-10 parts of catalyst. The high-density fireproof silicone adhesive uses the scale-like powder which has the characteristics of high temperature resistance, acid and alkali resistance and low vapor transmittance and can form a laminated state by different flakes after proper addition amount is achieved, and the aim of retarding flame can be achieved by stopping transmittance of high temperature or flame; under the combined effect of the scale-like powder and other raw materials, the high-density fireproof silicone adhesive has excellent radiation resistance and fireproofing performance without flame-retardant powder or metal powder, and has low production cost and wide application prospect.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a high-density fireproof silicone rubber. Background technique [0002] As people's lives become more and more intelligent, people's demand for electricity is also increasing, and there are more and more power plants, more and more substations, and they are getting closer to people's gathering areas. There are more and more electromagnetic ionizing radiation, and people have higher and higher requirements for fire prevention and radiation protection. [0003] Fireproof silicone rubber is a commonly used anti-radiation material. It uses zinc borate, magnesium hydroxide, aluminum hydroxide, nitrogen, phosphorus, nitrogen-phosphorus composite, halogen-containing flame retardants, antimony-based flame retardants, Rare oxides, etc., alone or combined with several kinds of flame retardant powders, through the decomposition of flame retardants to generate water vapor, carbon dioxide, non-combusti...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/07C08K13/04C08K3/22C08K3/36C08K5/544
CPCC08K2003/2272C08K2201/003C08K2201/006C08K2201/014C08L83/04C08L2201/02C08L2201/08C08L2205/025C08K13/04C08K7/00C08K3/22C08K3/36C08K5/544
Inventor 王存富王艳超
Owner 深圳市东信硅材料有限公司
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