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Carbon-phenolic foam composite material and preparation method thereof

A composite material and phenolic foam technology, which is applied in the field of carbon phenolic foam composite material and its preparation, can solve the problem of not using the occupational safety of users, and achieve the effects of low cost, reduced dosage and low pollution.

Inactive Publication Date: 2012-08-22
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1872, German chemist Bayer first synthesized phenolic resin. In 1907, Belgian-American Baekeland proposed the heating and curing method of phenolic resin to realize industrial production of phenolic resin. The most important feature of phenolic resin is high temperature resistance, even at very high temperature. It can also maintain its structural integrity and dimensional stability at low temperature, so it is often used in the technical field of thermal insulation materials. The most common product form is phenolic foam, which is widely used Used in the fields of aerospace, national defense and military industry, ship vehicles, oil wells, construction, air-conditioning, etc., the phenolic foam material in the prior art, because its main raw material is phenolic resin, and because phenolic resin is to be raw material synthesis by phenol and formaldehyde again, Therefore, phenolic foam materials often contain a small amount of formaldehyde. As we all know, formaldehyde is a typical carcinogenic and teratogenic substance. Prolonged exposure to formaldehyde can cause respiratory diseases, and even terminal diseases such as nasopharyngeal cancer. It does not take advantage of the occupational safety of users.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 100 parts of phenolic resin, 2 parts of Tween-80, 5 parts of carbon powder, 5 parts of n-pentane, 5 parts of p-toluenesulfonic acid, and 5 parts of phosphoric acid to form a mixture according to the weight ratio. The mixture was stirred at a high speed under the stirrer for 10 seconds, and then the stirred mixture was placed in a 70°C environment for foaming. After 30 minutes, a carbon phenolic foam composite material was obtained. After standing for 1 month, the carbon phenolic foam The formaldehyde adsorption value of the composite material is 7mg / g.

Embodiment 2

[0024] Weigh 100 parts of phenolic resin, 4 parts of Tween-80, 7 parts of carbon powder, 6 parts of isopentane, 7 parts of p-toluenesulfonic acid, and 2 parts of sulfuric acid to form a mixture according to the weight ratio. The mixture was stirred at a high speed under the stirrer for 10 seconds, and then the stirred mixture was placed in an environment of 40°C for foaming. After 60 minutes, a carbon phenolic foam composite material was obtained. After standing for 2 months, the carbon phenolic foam The formaldehyde adsorption value of the composite material is 11mg / g.

Embodiment 3

[0026] Weigh 100 parts of phenolic resin, 5 parts of silicone oil, 9 parts of carbon powder, 5 parts of ethyl chloride, 5 parts of p-toluenesulfonic acid, and 5 parts of hydrochloric acid to form a mixture according to the weight ratio. Stir at high speed under the container for 10 seconds, then put the stirred mixture into an environment of 70°C for foaming, and obtain a carbon phenolic foam composite material after 90 minutes, and after standing for 3 months, the carbon phenolic foam composite material The formaldehyde adsorption value is 15mg / g.

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Abstract

The invention discloses a carbon-phenolic foam composite material, which is prepared by mixing and then foaming the following raw materials in parts by weight: 100 parts of foamable phenolic resin, 1-8 parts of surfactant, 8-20 parts of curing agent, 5-20 parts of foaming agent and 5-10 parts of carbon powder. The invention provides the carbon-phenolic foam composite material, by which the service environment of a user can be relatively safer.

Description

Technical field: [0001] The invention relates to the technical field of a foam insulation material and its preparation method, in particular to a carbon-phenolic foam composite material and its preparation method. Background technique: [0002] Phenolic resin is also called bakelite, also known as bakelite powder. In 1872, the German chemist Bayer first synthesized phenolic resin. In 1907, Belgian-American Baekeland proposed the heating and curing method of phenolic resin to realize industrial production of phenolic resin. The most important feature of phenolic resin is high temperature resistance, even at very high temperature. It can also maintain its structural integrity and dimensional stability at low temperature, so it is often used in the technical field of thermal insulation materials. The most common product form is phenolic foam, which is widely used Used in the fields of aerospace, national defense and military industry, ship vehicles, oil wells, construction, ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K7/24C08K3/04C08J9/14
Inventor 张金萍杜孟浩胡立松
Owner RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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