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Ceramic silicon rubber and preparation method thereof

A technology for ceramicizing silicone rubber and rubber, applied in the field of rubber materials, can solve problems such as affecting the mechanical properties of silicone rubber, affecting the overall function, changing the color of silicone rubber, etc.

Active Publication Date: 2015-05-13
JIANGSU TIANCHEN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramic silicone rubber in the prior art usually adds inorganic fillers to raw silicone rubber, such as adding inorganic silicon powder, calcium carbonate and montmorillonite, etc., and uses inorganic materials to decompose and absorb heat to reduce the temperature of the polymer and dilute the flammable material. In order to achieve the purpose of fire resistance and flame retardancy, but some fillers will affect the mechanical properties of silicone rubber, thereby affecting its overall function, or some fillers will change the original color of silicone rubber

Method used

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  • Ceramic silicon rubber and preparation method thereof
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Examples

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Effect test

Embodiment 1

[0016] A preparation method of ceramic silicone rubber, the preparation steps are as follows: 100 parts of methyl vinyl silicone rubber raw rubber and 0.17 parts of zinc stearate are kneaded in a vacuum kneader for 3 minutes, and then 20 parts of fumed white carbon black Add 2 parts of hydroxy silicone oil into the vacuum kneader in 3 times, fully stir after each addition, the stirring speed of the active stirring paddle is 62 rpm, and the stirring speed of the driven stirring paddle is 56 rpm, and the mixture Stir and mix evenly, then add 4 parts of the mixture of aluminum hydroxide and red phosphorus, 6 parts of nano-montmorillonite and 1 part of 1,3-diethynyltetramethyldisiloxane, stir well, and wait until the rubber material is kneaded and formed Raise the temperature to 160°C, heat for 90 minutes, then evacuate until the vacuum degree is -0.07MPa, after 30 minutes of vacuuming, the rubber will be released, and the rubber will be passed through the double-roller open rubber...

Embodiment 2

[0018] A preparation method of ceramic silicone rubber, the preparation steps are as follows: 100 parts of methyl vinyl silicone rubber raw rubber and 0.18 parts of zinc stearate are kneaded in a vacuum kneader for 4 minutes, and then 40 parts of precipitated white carbon black Add 6 parts of hydroxy silicone oil into the vacuum kneader in 4 times, fully stir after each addition, the stirring speed of the active stirring paddle is 62 rpm, the stirring speed of the driven stirring paddle is 56 rpm, and the mixture Stir and mix evenly, then add 20 parts of aluminum hydroxide and red phosphorus mixture, 25 parts of nano-montmorillonite and 3 parts of 1,3-diethynyltetramethyldisiloxane, stir well, and wait until the rubber material is kneaded and shaped Raise the temperature to 170°C, heat for 100 minutes, then evacuate to a vacuum degree of -0.06MPa. After evacuating for 50 minutes, the glue is released. The rubber is passed through the double-roller open rubber mixer for 4 times,...

Embodiment 3

[0020] A preparation method of ceramic silicone rubber, the preparation steps are as follows: 100 parts of methyl vinyl silicone rubber raw rubber and 0.2 parts of zinc stearate are kneaded in a vacuum kneader for 5 minutes, and then 60 parts of fumed white carbon black Add 8 parts of hydroxy silicone oil into the vacuum kneader in 5 times, and fully stir after each addition. The stirring speed of the active stirring paddle is 62 rpm, and the stirring speed of the driven stirring paddle is 56 rpm. Stir and mix evenly, then add 30 parts of aluminum hydroxide and red phosphorus mixture, 40 parts of nano-montmorillonite and 5 parts of 1,3-diethynyltetramethyldisiloxane, stir well, and wait until the rubber material is kneaded and shaped Raise the temperature to 180°C, heat for 120 minutes, then evacuate to a vacuum degree of -0.05MPa, and after 60 minutes of vacuuming, the rubber will be released, and the rubber will be passed through the double-roller open rubber mixer for 5 time...

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Abstract

The invention discloses a ceramic silicon rubber and a preparation method thereof. A plurality of inorganic fillers are added into the raw silicon rubber, so that the ceramic silicon rubber prepared by the method has high flame retardant property due to the synergistic flame retardant function between the inorganic fillers and the raw silicon rubber; and meanwhile, other mechanical performances of the silicon rubber are not influenced by the added fillers.

Description

technical field [0001] The invention relates to a vitrified silicone rubber and a preparation method thereof, belonging to the technical field of rubber materials. Background technique [0002] When silicone rubber is used in transmission lines, aerospace, mechanical parts, and electrical and electronic fields, it often needs to work under high pressure, high temperature, heat generation, and discharge conditions, so there are high requirements for silicone rubber in terms of flame retardancy. Therefore, the research on ceramic silicone rubber with better flame retardant effect has become extremely important. Ceramic silicone rubber in the prior art usually adds inorganic fillers, such as inorganic silicon powder, calcium carbonate and montmorillonite, to raw silicone rubber, and uses inorganic materials to decompose and absorb heat to reduce the temperature of the polymer and dilute the flammable material. However, some fillers will affect the mechanical properties of sili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/06C08K13/06C08K3/36C08K3/22C08K3/02C08K3/34C08K5/098C08K5/5419
Inventor 王栋葆徐文俊姚恒玺
Owner JIANGSU TIANCHEN NEW MATERIALS
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