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Expansion type fireproof silicone rubber strip

A silicone rubber, intumescent technology, applied in the field of intumescent fireproof silicone rubber strips, can solve the problems of high heat release rate, unenvironmental protection, poor heat insulation effect, etc., and achieves low heat release rate, less smoke, and fire resistance. Good results

Inactive Publication Date: 2016-12-28
浙江凌志新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are intumescent flame-retardant EPDM rubber strips and intumescent flame-retardant styrene-butadiene rubber on the market. Salt), high heat release rate in fire, poor heat insulation effect, and not environmentally friendly

Method used

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  • Expansion type fireproof silicone rubber strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of surface treatment agent

[0030] Use low viscosity hydroxy silicone oil (HO(CH 3 SiCH 3 ) 3 H, commercially available) and propyltrimethoxysilane (CH 3 CH 2 CSi(OCH 3 ) 3 , commercially available), in parts by mass of 1:1, under the action of a titanate catalyst (preferably butyl titanate, analytically pure, Shanghai Meixing Chemical Co., Ltd.), after reacting at 100°C for 4 hours, and in a vacuum The low molecular weight was removed at -0.06MPa for 2 hours, and the obtained product was used as a surface treatment agent.

[0031] (2) Surface treatment of expanded graphite

[0032] Use absolute ethanol (analytical grade) and water (distilled water) in 2:8 parts by weight, and stir evenly to obtain an ethanol solution. The surface treatment agent and the ethanol solution were prepared in parts by weight of 1:9, while stirring, acetic acid was added dropwise to adjust the pH value to 3, and stirred at room temperature for 30 minutes to obtain a s...

Embodiment 2

[0039] (1) Preparation of surface treatment agent

[0040] Use low viscosity hydroxy silicone oil (HO(CH 3 SiCH 3 ) 4 H, commercially available) and propyltrimethoxysilane (CH 3 CH 2 CSi(OCH 3 ) 3 , commercially available), in parts by mass of 1:1, under the action of a titanate catalyst (commercially available), react at 100°C for 3 hours, and delower molecular weight for 2 hours under a vacuum of -0.08MPa to obtain The product is used as a surface treatment agent.

[0041] (2) Surface treatment of expanded graphite

[0042] Use absolute ethanol (analytical grade) and water (distilled water) in 2:8 parts by weight, and stir evenly to obtain an ethanol solution. The surface treatment agent and the ethanol solution were prepared in parts by weight of 1:9, while stirring, acetic acid was added dropwise to adjust the pH value to 4, and stirred at room temperature for 30 minutes to obtain a surface treatment agent solution, the content of which was 10%. Add the expanded gra...

Embodiment 3

[0049] (1) Preparation of surface treatment agent

[0050] Use low viscosity hydroxy silicone oil (HO(CH 3 SiCH 3 ) 5 H, commercially available) and propyltrimethoxysilane (CH 3 CH 2 CSi(OCH 3 ) 3 , commercially available), according to the mass fraction of 1:1, under the action of a titanate catalyst (commercially available), react at 100°C for 4 hours, and delower the molecule under vacuum -0.08MPa for 2 hours to obtain The product is used as a surface treatment agent.

[0051] (2) Surface treatment of expanded graphite

[0052] Use absolute ethanol (analytical grade) and water (distilled water) in 2:8 parts by weight, and stir evenly to obtain an ethanol solution. The surface treatment agent and the ethanol solution were prepared in parts by weight of 1:9, while stirring, acetic acid was added dropwise to adjust the pH value to 5, and stirred at room temperature for 30 minutes to obtain a surface treatment agent solution, the content of which was 10%. Add the expan...

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Abstract

The invention discloses an expansion type fireproof silicone rubber strip. The expansion type fireproof silicone rubber strip is prepared by mixing, by weight, 100 parts of base rubber, 0.5-1.5 parts of color master glue and 1-3 parts of vulcanizing agent. The base rubber is prepared by mixing, by weight, 100 parts of methyl vinyl silicone rubber, 20-400 parts of expanded graphite, 20-80 parts of filler and 6-10 parts of structure controlling agent. The expansion type fireproof silicone rubber strip has the advantages of being good in fireproof performance, free of toxins and environmentally friendly, and can be widely used for the fields such as electrical engineering, construction and chemical engineering.

Description

technical field [0001] The invention relates to a silicone rubber rubber strip, in particular to an intumescent fireproof silicone rubber rubber strip. Background technique [0002] Silicone rubber is the category with the largest output and the most varieties and grades among silicone products. According to the vulcanization method and vulcanization temperature, silicone rubber is divided into two categories: high temperature vulcanization (HTV) silicone rubber and room temperature vulcanization (RTV) silicone rubber. High temperature vulcanized silicone rubber is polyorganosiloxane (ie raw rubber) with high molecular weight (generally 500,000 to 700,000 molecular weight), adding reinforcing fillers and other additives, using organic peroxides as vulcanizing agents, and forming under pressure (molded, extruded, calendered) or injection molded and cross-linked at high temperature into a rubber-like product. Different from other organic synthetic rubbers, the strength of pu...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08K13/06C08K9/06C08K7/24C08K3/36
CPCC08L83/04C08L2201/02C08L2201/08C08L83/06C08K13/06C08K9/06C08K7/24C08K3/36
Inventor 陈世龙
Owner 浙江凌志新材料有限公司
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