Room-temperature foaming silicone rubber foam material as well as preparation method and application thereof

A technology of foaming materials and room temperature foaming, which is applied in the direction of sound-generating devices and instruments, and can solve the problems that rock wool materials are difficult to meet the requirements, have many by-products, and the vulcanization speed of condensation-type silicone rubber is slow, so as to achieve low production cost and effective use Long life, good sound insulation effect

Active Publication Date: 2022-07-15
尚德环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a room-temperature foamed silicone rubber foam material and its preparation method and application, so as to solve the problem of slow vulcanization speed of condensation-type silicone rubber in the prior art, many by-products and difficulty in meeting the requirements of the rock wool material in the sound barrier The problem

Method used

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  • Room-temperature foaming silicone rubber foam material as well as preparation method and application thereof
  • Room-temperature foaming silicone rubber foam material as well as preparation method and application thereof
  • Room-temperature foaming silicone rubber foam material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1, stir and mix 20 parts of 107 glue with a viscosity of 1000 mPa·s, 5 parts of vinyl silicone oil with a viscosity of 10000 mPa·s, 2 parts of hydroxy silicone oil, and 1 part of ethanol to obtain mixture A;

[0035] Step 2, add 0.1-5 parts of inhibitors and 0.1-5 parts of catalysts to mixture A, stir and mix evenly to obtain mixture B;

[0036] Wherein the inhibitor is 1-ethynyl-1-cyclohexanol, and the catalyst is a platinum complex catalyst with a platinum content of 1000-5000 ppm;

[0037] Step 3, in mixture B, add 10 parts of hydrogen-containing silicone oil, stir and mix evenly;

[0038] Step 4, place at room temperature for about 5 minutes to start vulcanization and foaming, and finally vulcanize and foam for 1 hour.

Embodiment 2

[0040] The structure of the room temperature foamed silicone rubber foam material prepared in Example 1 is the same, and the difference lies in the addition amount of ingredients and fillers.

[0041] Step 1: Mix 30 parts of 107 glue with a viscosity of 1000 mPa·s, 10 parts of vinyl silicone oil with a viscosity of 10000 mPa·s, 4 parts of hydroxy silicone oil, 2 parts of ethanol, and 5 parts of white carbon black to obtain mixture A;

[0042] Step 2, add 0.1 part of inhibitor and 0.5 part of catalyst to mixture A, stir and mix evenly to obtain mixture B;

[0043] Wherein the inhibitor is 3,5-dimethyl-1-hexyn-3-ol, and the catalyst is a platinum complex catalyst with a platinum content of 1000-5000 ppm;

[0044] Step 3, in mixture B, add 20 parts of hydrogen-containing silicone oil, stir and mix evenly;

[0045] Step 4, place at room temperature for about 5 minutes to start vulcanization and foaming, and finally vulcanize and foam for 2 hours.

Embodiment 3

[0047] The structure of the room temperature foamed silicone rubber foam material prepared in Example 1 is the same, and the difference lies in the addition amount of components and fillers.

[0048] Step 1, mix 40 parts of 107 glue with a viscosity of 1000 mPa s, 15 parts of vinyl silicone oil with a viscosity of 10000 mPa s, 6 parts of hydroxy silicone oil, 2 parts of ethanol, 5 parts of white carbon black, and 30 parts of calcium carbonate, stir and mix evenly to obtain mixture A;

[0049] Step 2, add 0.1 part of inhibitor and 0.5 part of catalyst to mixture A, stir and mix evenly to obtain mixture B;

[0050] Wherein the inhibitor is 3-methyl-1-dodecyn-3-ol, and the catalyst is a platinum-gold complex catalyst with a platinum content of 1000-5000 ppm;

[0051] Step 3, in mixture B, add 10 parts of hydrogen-containing silicone oil, stir and mix evenly;

[0052] Step 4, place at room temperature for about 5 minutes to start vulcanization and foaming, and finally vulcanize ...

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Abstract

The invention discloses a room-temperature foaming silicone rubber foam material as well as a preparation method and application thereof. The foam material comprises the following raw materials in parts by weight: 20-80 parts of 107 rubber, 5-20 parts of vinyl silicone oil, 2-10 parts of hydroxyl silicone oil, 1-5 parts of an alcohol compound, 10-40 parts of hydrogen-containing silicone oil, 3-40 parts of nano filler, 0.1-5 parts of an inhibitor and 0.1-5 parts of a catalyst. According to the preparation method, mechanical stirring is carried out at room temperature, hydrogen-containing silicone oil is used as a cross-linking agent and a foaming agent, addition vulcanization and condensation foaming reactions can be carried out in the presence of a platinum catalyst, H2 is generated for preparing the silicone rubber foam material, after forming, shrinkage is small, collapse is avoided, and the foaming volume is 3-5 times that before foaming; the composite material is applied to a sound barrier to serve as a sound absorption material, the sound insulation effect is good, shock absorption and flame retardance are achieved, moisture and mildew are prevented, and the effective service life is longer than that of a traditional rock wool material.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber foam materials, and in particular relates to a room temperature foamed silicone rubber foam material and a preparation method and application thereof. Background technique [0002] Silicone rubber foam material is a kind of silicone rubber material with porous structure. It has excellent sound absorption, shock absorption, flame retardancy, aging resistance, and temperature resistance. Has a wide range of applications. [0003] Room temperature foamed silicone rubber can be foamed at room temperature and is divided into two types: condensation type and addition type. Condensation dehydrogenation type foamed silicone rubber is based on α, ω dihydroxy polydimethylsiloxane (107 glue) as the base polymer, foaming auxiliary (alcohol or hydroxy silicone oil), and hydrogen-containing silicone oil as the crosslinking agent. Under the catalysis of organotin or platinum catalyst, a dehydrogenation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/05C08J9/06G10K11/162
CPCC08J9/06C08J9/0061G10K11/162C08J2383/04C08J2483/07C08J2483/05Y02P20/10
Inventor 吴义民沈星星徐彬李磊
Owner 尚德环保科技有限公司
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