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Flame-retardant silicone rubber material

A technology of silicone rubber and decabromodiphenyl ether, which is applied in the field of gas mask cover materials, can solve problems such as poor flame retardant performance, and achieve the effects of improving flame retardant performance, wide application range and increasing flame retardant performance.

Inactive Publication Date: 2017-02-22
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Early gas masks mostly used natural rubber as the cover material. With the development of biotechnology and genetic engineering technology, higher requirements are put forward for the protective performance of gas masks. Therefore, the performance requirements for gas mask cover materials are also increasing. High, as a cover material, silicone rubber has the characteristics of high and low temperature resistance, aging resistance, physiological inertia and high air permeability, but its flame retardant performance is poor, and it cannot self-extinguish after being caught on fire. At present, domestic manufacturers who propose flame retardant performance, their The performance also only complies with some standards of GB2890-2009 or GB2626-2006, and there is no clear description of the silicone rubber mask that meets the flame retardant standard in GA 124-2004 "Positive Pressure Fire-fighting Air Respirators"

Method used

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  • Flame-retardant silicone rubber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A flame-retardant silicone rubber material, comprising the following components by weight:

[0024] Silicone rubber 100 parts, antimony trioxide 20 parts, decabromodiphenyl ether 30 parts, DCP 2 parts, zinc stearate 10 parts.

[0025] The preparation method is as follows:

[0026] XK-160mm open type rubber mixing machine is used for compounding rubber, and the speed ratio of the rollers is 1:1.25; when the silicone rubber is mixed, the temperature of the front roller is 60°C, and the temperature of the rear roller is slightly higher, which is 75°C; the mixing process is as follows :

[0027] (1) Adjust the roller distance to 0.8, add silicone rubber to make it cover the front roller;

[0028] (2) Add zinc stearate and DCP and knead for 15 minutes;

[0029] (3) Adjust the roller distance to 1.2, add antimony trioxide and decabromodiphenyl ether, and mix for 30 minutes;

[0030] (4) Adjust the roller distance to 0.8, and pass six times before and after thinning;

[0...

Embodiment 2

[0033] A flame-retardant silicone rubber material, comprising the following components by weight:

[0034] Silicone rubber 100 parts, antimony trioxide 10 parts, decabromodiphenyl ether 50 parts, DCP 6 parts, zinc stearate 5 parts.

[0035] The preparation method is as follows:

[0036] XK-160mm open type rubber mixing machine is used for mixing the rubber material, and the speed ratio of the rollers is 1:1.25; when the silicone rubber is mixed, the temperature of the front roll is 65°C, and the temperature of the rear roll is slightly higher, which is 72°C; the mixing process is as follows :

[0037] (1) Adjust the roller distance to 0.8, add silicone rubber to make it cover the front roller;

[0038] (2) Add zinc stearate and DCP and knead for 20 minutes;

[0039] (3) Adjust the roller distance to 1.2, add antimony trioxide and decabromodiphenyl ether, and mix for 30 minutes;

[0040] (4) Adjust the roller distance to 0.8, and pass six times before and after thinning;

...

Embodiment 3

[0043] A flame-retardant silicone rubber material, comprising the following components by weight:

[0044] Silicone rubber 100 parts, antimony trioxide 30 parts, decabromodiphenyl ether 20 parts, DCP 10 parts, zinc stearate 15 parts.

[0045] The preparation method is as follows:

[0046] XK-160mm open type rubber mixing machine is used for mixing rubber materials, and the speed ratio of the rollers is 1:1.25; when mixing silicone rubber, the temperature of the front roller is 60°C, and the temperature of the rear roller is slightly higher, which is 70°C; the mixing process is as follows :

[0047] (1) Adjust the roller distance to 0.8, add silicone rubber to make it cover the front roller;

[0048] (2) Add zinc stearate and DCP and knead for 15 minutes;

[0049] (3) Adjust the roller distance to 1.2, add antimony trioxide and decabromodiphenyl ether, and mix for 20 minutes;

[0050] (4) Adjust the roller distance to 0.8, and pass six times before and after thinning;

[0...

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PUM

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Abstract

The invention discloses a flame-retardant silicone rubber material, prepared from the following component in parts by weight: 100 parts of silicone rubber, 10-30 parts of antimony trioxide, 20-50 parts of decabromodiphenyl ether, 2-10 parts of DCP and 5-15 parts of zinc stearate. The silicone rubber adopted by the flame-retardant silicone rubber material ensures the chemical protective properties of the material and simultaneously meets the flame-retardant standard in GA 124-2004 'Fire air positive pressure breathing apparatus'. As a mask material for new generation industrial gas masks, a gas mask utilizing the material can meet the chemical protective properties as well as improve the flame-retardant properties, thereby having a wider range of application.

Description

technical field [0001] The invention relates to the field of gas mask cover materials, in particular to a flame-retardant silicone rubber material that can meet the protective performance requirements of the gas mask. Background technique [0002] Early gas masks mostly used natural rubber as the cover material. With the development of biotechnology and genetic engineering technology, higher requirements are put forward for the protective performance of gas masks. Therefore, the performance requirements for gas mask cover materials are also increasing. High, as a cover material, silicone rubber has the characteristics of high and low temperature resistance, aging resistance, physiological inertia and high air permeability, but its flame retardant performance is poor, and it cannot self-extinguish after being caught on fire. At present, domestic manufacturers who propose flame retardant performance, their The performance also only complies with some standards of GB2890-2009 o...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K13/02C08K3/22C08K5/06C08K5/14C08K5/098
CPCC08K3/2279C08K5/06C08K5/098C08K5/14C08K13/02C08L83/04
Inventor 崔江舟王立功雷小军齐嘉豪金世婧王慧常慧芳
Owner SHANXI XINHUA CHEM
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