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Ceramic silicone rubber composite with excellent burning resistance

A ceramic silicone rubber, burning-resistant technology, applied in the field of polymer rubber materials, can solve the problems affecting the burning resistance of ceramic silicone rubber, oxygen penetration, low density, etc., to shorten the firing time and enhance the bonding effect , the effect of reducing the firing temperature

Inactive Publication Date: 2018-05-08
CHANGZHOU INST OF DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently commonly used porcelain-forming fillers have large pore sizes and low density in the formed ceramic body, which can easily lead to oxygen penetration and even flame transfer to the base material, which seriously affects the burning resistance of ceramic silicone rubber.

Method used

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  • Ceramic silicone rubber composite with excellent burning resistance
  • Ceramic silicone rubber composite with excellent burning resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A ceramic silicone rubber composition with excellent burning resistance, prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 30 parts of porcelain filler, and a melting point range of 350 for flux 5 parts of low-melting glass powder at ~650°C, 1 part of chloroplatinic acid-octanol complex as catalyst, 5 parts of hydroxyl silicone oil, 3 parts of bis(2,4-dichlorobenzoyl peroxide) as vulcanizing agent, Wherein, the porcelain-forming filler is a mixture of aluminum silicate fiber and acicular wollastonite, wherein the mass ratio of aluminum silicate fiber and acicular wollastonite is 15:30.

[0025] To prepare, proceed as follows:

[0026] (1) Mix silicone rubber, ceramic filler, flux, platinum catalyst, and hydroxy silicone oil in a kneader with a vacuum degree of 0.01MPa, a temperature of 130°C, and a time of 120 minutes;

[0027] (2) After the above-mentioned rubber material is cooled to room temperature, add a vulca...

Embodiment 2

[0029] A ceramic silicone rubber composition with excellent burning resistance, prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 50 parts of porcelain filler, and a melting point range of 350 for flux 10 parts of low-melting glass powder at ~650°C, 1 part of chloroplatinic acid-octanol complex as catalyst, 5 parts of hydroxyl silicone oil, 3 parts of bis(2,4-dichlorobenzoyl peroxide) as vulcanizing agent, Wherein, the porcelain-forming filler is a mixture of aluminum silicate fiber and acicular wollastonite, wherein the mass ratio of aluminum silicate fiber and acicular wollastonite is 17:33.

[0030] Prepare with embodiment 1.

Embodiment 3

[0032] A ceramic silicone rubber composition with excellent burning resistance, prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 50 parts of porcelain filler, and a melting point range of 350 for flux 10 parts of low-melting glass powder at ~650°C, 1 part of chloroplatinic acid-octanol complex as catalyst, 5 parts of hydroxyl silicone oil, 3 parts of bis(2,4-dichlorobenzoyl peroxide) as vulcanizing agent, Wherein, the porcelain-forming filler is a mixture of aluminum silicate fiber and acicular wollastonite, wherein the mass ratio of aluminum silicate fiber and acicular wollastonite is 19:31.

[0033] Prepare with embodiment 1.

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Abstract

The invention belongs to the field of macromolecular rubber materials, and relates to a silicone rubber composition, in particular to a ceramic silicone rubber composite with excellent burning resistance. The ceramic silicone rubber composite is prepared from, by weight, 100 parts of silicone rubber, 20-60 parts of formed ceramic filling, 5-15 parts of fluxing agent and 2-4 parts of vulcanizing agent, wherein the formed ceramic filling is the mixture of alumina silicate fibers and needle-like wollastonite, and the mass ratio of the alumina silicate fibers to the needle-like wollastonite is (15-25):(30-40). According to the ceramic silicone rubber composite with the excellent burning resistance, the compound of the alumina silicate fibers and the needle-like wollastonite is adopted as the formed ceramic filling to improve the thermal stability and burning resistance of the ceramic silicone rubber.

Description

technical field [0001] The invention belongs to the field of polymer rubber materials, and relates to a silicone rubber composition, in particular to a ceramic silicone rubber composition with excellent burning resistance. Background technique [0002] Ceramic rubber material is a new type of fireproof material that has appeared in recent years. It is a composite material made by adding certain ceramic fillers and fluxes to the rubber matrix. It can maintain good elasticity and mechanical properties at room temperature. When When encountering an open flame or a high temperature environment, this composite material can transform into a self-supporting ceramic body, thereby preventing the flame from spreading and achieving the purpose of fire prevention. Ceramic rubber materials have broad application prospects, especially as insulating materials for wires and cables, which can prevent the flame from spreading further inside the wires and cables, and keep the circuit unblocked...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08K13/04C08K7/10C08K3/40
CPCC08K2201/014C08L83/04C08L2205/025C08K13/04C08K7/10C08K3/40
Inventor 李强
Owner CHANGZHOU INST OF DALIAN UNIV OF TECH
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