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A water-based release agent for high temperature resistant composite materials

A composite material, water-based technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve problems such as difficult demoulding, product surface pollution, no substantial improvement, etc., to achieve non-toxic side effects, good high temperature adhesion, The effect of less residue

Active Publication Date: 2020-10-30
SHANDONG NON METALLIC MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no substantial improvement in the demoulding of high temperature resistant composite materials
[0006] Traditional mold release agents such as stearic acid and silicone grease will be carbonized when used at a high temperature of 300°C, and will pollute the surface of the product, making it difficult to release the mold smoothly

Method used

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  • A water-based release agent for high temperature resistant composite materials
  • A water-based release agent for high temperature resistant composite materials
  • A water-based release agent for high temperature resistant composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Put 60 parts of water into the enamel bucket, start stirring, add 6 parts of sodium hydroxide, after the sodium hydroxide is dissolved, slowly add 13 parts of adipic acid and stir for 10 minutes. Add 1 part of polyethylene glycol (PEG6000), 1 part of sodium silicate, and 1 part of sodium tetraborate in sequence, and continue stirring for 10 minutes to completely dissolve them. Add 1 part of Tween 80, stir for 10 minutes, slowly add 2.3 parts of sodium carboxymethyl cellulose (FVH9) and stir for 30 minutes, the pH is 7.1, and finally, add 15 parts of colloidal graphite powder (Qingdao Dongkai Graphite Co., Ltd., 3000 mesh ), vigorously stirred for 60 minutes. Made into a black paste high temperature resistant composite material water-based release agent.

[0053] Use a clean cotton cloth to dip a small amount of high-temperature-resistant demoulding machine, apply it evenly on the inner surface of the mold, let it dry for 10 minutes, and after the solvent evaporates, th...

Embodiment 2

[0055] Put 40 parts of water into the enamel bucket, start stirring, add 8 parts of sodium hydroxide, after the sodium hydroxide is dissolved, slowly add 16 parts of adipic acid, and stir for 10 minutes. Add 3 parts of polyethylene glycol (PEG6000), 3 parts of sodium silicate and 3 parts of sodium tetraborate in sequence, and continue to stir for 10 minutes to completely dissolve it. Add 3 parts of Tween 80, stir for 10 minutes, slowly add 3 parts of sodium carboxymethyl cellulose (coating grade) and stir for 30 minutes, test the pH to 7.0, finally, add 15 parts of colloidal graphite powder (Qingdao Risheng Graphite Co., Ltd., 2000 mesh), vigorously stirred for 60 minutes. Made into a water-based release agent for high temperature resistant composite materials.

[0056] Use a clean cotton cloth to dip a small amount of high-temperature-resistant demoulding machine, apply it evenly on the inner surface of the mold, let it dry for 13 minutes, and after the solvent evaporates, t...

Embodiment 3

[0058] Put 55 parts of water into the enamel bucket, start stirring, add 7.5 parts of sodium hydroxide, after the sodium hydroxide is dissolved, slowly add 14 parts of adipic acid, and stir for 10 minutes. Add 2.5 parts of polyethylene glycol (PEG6000), 2.5 parts of sodium silicate (industrial grade), and 2.5 parts of sodium tetraborate in sequence, and continue stirring for 10 minutes to completely dissolve them. Add 2 parts of Tween 80, stir for 10 minutes, slowly add 1.5 parts of sodium carboxymethyl cellulose (industrial grade) and stir for 30 minutes, test the pH to 7.2, and finally, add 15 parts of colloidal graphite powder (Shenzhen Huanan Xinyang Technology Co., Ltd. company), vigorously stirred for 60 minutes. Made into a water-based release agent for high temperature resistant composite materials.

[0059] Use a clean cotton cloth to dip a small amount of high-temperature-resistant demoulding machine, apply it evenly on the inner surface of the mold, let it dry for ...

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Abstract

The invention belongs to the technical field of composite material moulding. The high temperature resistant property and lubricating performance of colloidal graphite powder are utilized; tween 80, asodium silicate high temperature film forming agent, a sodium carboxymethyl cellulose thickening agent, and adipic acid are taken as a film forming agent, and uniform film forming of graphite is realized therefore. A related water based release agent for a high temperature resistant composite material is a black paste like substance, has a pH value of 7.0-7.5, and is composed of following components in parts by weight: 15 parts of colloidal graphite powder, 6 to 8 parts of sodium hydroxide, 13 to 16 parts of adipic acid, 1 to 3 parts of sodium silicate, 1 to 3 parts of sodium carboxymethyl cellulose, 1 to 3 parts of tween 80, 1 to 3 parts of sodium tetraborate, 1 to 3 parts of polyethylene glycol, and 40 to 60 parts of water. The water based release agent has the advantages of good high temperature adhesion performance, few residues, simple preparation technology, and no toxic or side effect. The lubricating performance of the release agent is effectively improved, and the service lifeof a mould is prolonged. The release agent is suitable for the demoulding of a high temperature resistant composite material at a temperature of 300 to 500 DEG C.

Description

technical field [0001] The invention belongs to the technical field of composite material forming, and relates to a composite material demoulding technology, in particular to a high temperature resistant composite material demoulding technology. Background technique [0002] With the continuous improvement of technology, the temperature resistance of the resin has increased from the original 300°C to 500°C, and the temperature resistance of the composite material has increased accordingly. During the molding process of high-temperature-resistant composite materials (above 500°C) such as polyimide and polyetheretherketone, the composite material is easily bonded to the mold under the action of high temperature and high pressure, making it difficult to demould or release the composite material The composite material after the mold is damaged, which seriously affects the product quality and appearance. [0003] Release agent is an indispensable auxiliary material for composite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10N40/36C10N30/06C10N30/08
CPCC10M173/02C10M2201/041C10M2201/062C10M2201/087C10M2201/102C10M2207/123C10M2209/104C10M2209/109C10M2209/126C10N2030/06C10N2030/08C10N2040/36C10N2030/64
Inventor 马开宝高守臻李大勇王晓立罗长宏魏化震郑志才齐风杰安运成徐晓媛刘成阳
Owner SHANDONG NON METALLIC MATERIAL RES INST
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