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Flame-retardant silicone rubber composition and preparation method thereof

A silicone rubber composition and a technology for the composition are applied in the field of silicone rubber compositions, and can solve the problems of high price, deterioration of material processing performance, limitation of dosage and cost, etc.

Active Publication Date: 2011-02-09
ZHEJIANG XINAN CHEM INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of such flame retardants required to achieve a certain flame retardant level is too large, which seriously deteriorates the processing performance of the material, so it should be used in combination with other flame retardants to have a good synergistic effect
As mentioned above, the platinum complex is an effective flame retardant, the greater its dosage, the better the flame retardant effect, and basically does not affect the mechanical properties of silicone rubber, but because of its high price, its dosage is limited by the cost. limit

Method used

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  • Flame-retardant silicone rubber composition and preparation method thereof
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  • Flame-retardant silicone rubber composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] 100 parts by weight of methyl vinyl raw rubber with an average degree of polymerization of 8000 and a vinyl content of 0.12 mol%, 3 parts by weight of hydroxy silicone oil (viscosity at 25°C is 15 mm 2 / s, hydroxyl content is 6.0%) structural control agent and once in the kneader of preheating insulation 80 ℃ 0.5 hour, add 40 parts by weight in 6 times and the specific surface area is 180m 2 / g, the precipitated white carbon black (TMG of Jilin Tonghua Co., Ltd. production) of average particle diameter 8 μm and 80 parts by weight of average particle diameter are the aluminum hydroxide micropowder (HWF-1, Aluminum Industry Shandong Branch Company of China) of 1.5 μm, Among them, precipitated white carbon black is added in the first 3 times, and aluminum hydroxide micropowder is added in the last 3 times. After the kneading of each component is completed, the glue is released, and the rubber material is divided into lumps, stored for 2 hours, and then put into the kneader....

Embodiment 2

[0101] Except changing 0.04 part of 5wt% ethanol solution of diethylenetriamine into 0.04 part of 5wt% ethanol solution of triethylenetetramine, other components are as in Example 1, and are operated in the same way as in Example 1 to prepare curable silicon Rubber and rubber sheets were tested for their mechanical properties, processability and flame retardancy, and the results are shown in Tables 1 and 2.

Embodiment 3

[0103] Except changing 0.04 part of 5wt% ethanol solution of diethylenetriamine into 0.08 part of 5wt% ethanol solution of diethylenetriamine, other components are as in Example 1, and are operated in the same way as in Example 1 to prepare curable silicon Rubber and rubber sheets were tested for their mechanical properties, processability and flame retardancy, and the results are shown in Tables 1 and 2.

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Abstract

The invention relates to a flame-retardant silicone rubber composition and a preparation method thereof. In the method, hydroxides are added into a silicone rubber composition, and a platinum compound and a synergist are used as flame retardants, so that the flame-retardant silicone rubber compound composition which has high flame retardant property, mechanical property and processing property and low raw material cost is prepared.

Description

technical field [0001] The invention relates to a silicone rubber composition, in particular to a flame-retardant silicone rubber composition and a preparation method thereof. Background technique [0002] Due to its excellent heat resistance, cold resistance, environmental resistance, electrical insulation, low compression set and fatigue resistance, silicone rubber compounds have been widely used in electronics, electrical and mechanical manufacturing , chemical industry, food, daily necessities, medical and health and other fields. However, once silicone rubber catches fire, it will continue to burn, which limits its application in aerospace, automobiles, transmission lines and other fields that require good flame retardancy. [0003] The research on flame-retardant silicone rubber began in the 1940s. The additive flame retardants used to improve the flame retardancy of silicone rubber mainly include copper and copper compounds, platinum and platinum compounds. The flam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08K3/36C08L83/07C08K3/22C08K5/17C08K13/02
Inventor 王伟詹学贵邵月刚季旭平诸葛燕飞
Owner ZHEJIANG XINAN CHEM INDAL GROUP
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