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Silicon rubber-based heat-resistant composite material and preparation method thereof

A composite material and silicone rubber technology, applied in the field of silicone rubber-based composite materials and their preparation, can solve the problems of inability to protect internal materials, poor mechanical properties, loose structure, etc., to reduce interface defects, easy to process and form, The effect of enhancing compatibility

Active Publication Date: 2017-07-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing traditional silicone rubber-based composite materials produced by high-temperature burning have technical problems such as loose structure, easy crushing, poor mechanical properties, and inability to protect internal materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A silicone rubber-based heat-resistant and porcelainizable composite material. Its components include: 100 parts of methyl vinyl silicone rubber raw rubber, 20 parts of fumed silica, 5 parts of modified carbon fiber, and 30 parts of muscovite calculated by weight. Parts, 10 parts of zirconium dioxide, 15 parts of low melting point glass frit, 1 part of vulcanizing agent 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane.

[0028] Method Example 1

[0029] This example provides a method for preparing the product of Example 1. The steps include:

[0030] Step 1: Weigh various raw materials according to mass ratio;

[0031] Step 2: Place 100 parts by weight of methyl vinyl silicone rubber raw rubber in a two-roll open mill and mix for 5 minutes to make it fully and uniformly covered with rolls;

[0032] Step 3: Add 20 parts by weight of fumed white carbon black, 5 parts by weight of modified carbon fiber, 30 parts by weight of muscovite, 10 parts by weight of zirconium dioxide, and 15 par...

Embodiment 2

[0039] A silicone rubber-based heat-resistant and porcelainizable composite material. Its components include: 100 parts of methyl vinyl silicone rubber raw rubber, 30 parts of fumed white carbon black, 6 parts of modified carbon fiber, and 32 parts of muscovite calculated by weight. Parts, 13 parts of zirconium dioxide, 19 parts of zinc borate, 1.2 parts of vulcanizing agent di-tert-butyl peroxide.

[0040] Method Example 2

[0041] This example provides a method for preparing the product of Example 2. The steps include:

[0042] Step 1: Weigh various raw materials according to mass ratio;

[0043] Step 2: Put 100 parts by weight of methyl vinyl silicone rubber in a two-roll mill for 7 minutes and mix for 7 minutes to fully coat the rollers uniformly to obtain methyl vinyl silicone rubber;

[0044] Step 3: Add 30 parts by weight of fumed white carbon black, 6 parts by weight of modified carbon fiber, 32 parts by weight of muscovite, 13 parts by weight of zirconium dioxide, and 19 parts...

Embodiment 3

[0051] A silicone rubber-based heat-resistant and porcelainizable composite material. Its components include: 100 parts of methyl vinyl silicone rubber raw rubber, 26 parts of fumed silica, 8 parts of modified carbon fiber, and 36 parts of muscovite calculated by weight. Parts, 11 parts of zirconium dioxide, 20 parts of low melting point glass frit, 2 parts of vulcanizing agent dicumyl peroxide.

[0052] Method Example 3

[0053] This example provides a method for preparing the product of Example 3, and the steps include:

[0054] Step 1: Weigh various raw materials according to mass ratio;

[0055] Step 2: Put 100 parts by weight of methyl vinyl silicone rubber in a two-roll mill for 5 minutes and mix it for 5 minutes to fully coat the rollers uniformly to obtain methyl vinyl silicone rubber;

[0056] Step 3: Add 26 parts by weight of fumed white carbon black, 8 parts by weight of modified carbon fiber, 36 parts by weight of muscovite, 11 parts by weight of zirconium dioxide, and 20 p...

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Abstract

The invention relates to a silicon rubber-based heat-resistant composite material and a preparation method thereof. The silicon rubber-based heat-resistant composite material is a silicon rubber-based heat-resistant porcelainized composite material, and is prepared from the following components in parts by weight: 100 parts of raw methyl vinyl silicone rubber, 20 to 30 parts of fumed silica, 5 to 10 parts of modified carbon fiber, 30 to 40 parts of muscovite, 10 to 15 parts of zirconium dioxide, 15 to 20 parts of fluxing agent and 1 to 2 parts of vulcanizing agent. The preparation method comprises the following steps of uniformly blending in a open mill or a closed mill; after uniformly blending, performing primary vulcanizing and forming in a flat plate vulcanizing machine; performing secondary vulcanizing and forming in an air blowing drying box, so as to obtain the silicon rubber-based heat-resistant composite material. The silicon rubber-based heat-resistant porcelainized composite material prepared by the method has the advantages that by using the modified carbon fiber, the zirconium dioxide and the muscovite as the heat-resistant ceramic forming material, the heat-resistant property of the composite material is effectively improved, and the strength of a pyrolysis product is improved; the technology is simple, the production efficiency is high, and the industrialized batched production is easily realized.

Description

Technical field [0001] The invention relates to a silicone rubber-based composite material and a preparation method thereof, in particular to a silicone rubber refractory material and a preparation method thereof. Background technique [0002] As an important synthetic functional rubber, silicone rubber has an irreplaceable important position in life and science and technology. Due to the frequent occurrence of fire accidents in recent years, it can be seen that traditional refractory materials cannot fully assume the role of fire prevention and protection of people’s property safety, and traditional polymers will be completely lost or burned to ashes in the event of a fire, and halogen-containing flame retardant needs to be added Or other flame retardant fillers to improve the fire resistance of polymers. The polymer-based composite material after adding flame retardant can have certain flame retardant performance, but it will release toxic gas or droplets during the combustion...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/06C08K3/36C08K9/02C08K7/06C08K3/34C08K3/22C08K3/38C08K5/14B29C35/02
CPCB29C35/02C08K3/22C08K3/34C08K3/36C08K3/38C08K5/14C08K7/06C08K9/02C08K13/06C08K2003/2244C08K2003/387C08L2201/08C08L83/04
Inventor 王雁冰秦培君秦岩黄志雄
Owner WUHAN UNIV OF TECH
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