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High-temperature-resistant epoxy putty and preparation method thereof

An epoxy putty, high temperature resistant technology, applied in fire-resistant coatings, filling slurry, etc., to improve performance, increase specific surface area, enhance stability and ductility

Inactive Publication Date: 2021-01-01
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem of filling and repairing the heat-resistant coating of aerospace carriers in the prior art. In order to solve the above problems, a high-temperature resistant epoxy putty and its preparation method are provided. Putty is mainly used for repairing the heat-resistant coating on the outer surface of aerospace carriers, improving the heat-resistant compactness of the aircraft surface, and effectively ensuring the heat-resistant properties of the heat-resistant coating

Method used

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  • High-temperature-resistant epoxy putty and preparation method thereof
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  • High-temperature-resistant epoxy putty and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1. A high-temperature-resistant epoxy putty is composed of a main resin and a curing agent; the main resin is composed of 22 parts by weight of heat-resistant coating, 13 parts of silicone resin, 13 parts of epoxy resin, nitrogen 48 parts of nanometer ceramic micropowders, 6 parts of xylenes; Described curing agent is 7 parts of aromatic amine curing agents by weight.

[0032] Further, the composition of the heat-resistant coating is calculated by weight: 12 parts of zirconia, 20 parts of γ-alumina, 6 parts of graphene, and 22 parts of ethylene glycol.

[0033] Further, the preparation method of described heat-resistant paint is:

[0034] a. Add γ-Al 2 o 3 Carry out calcination at a temperature of 480°C for 1.5h, blend and grind with graphene after cooling, add ethylene glycol and stir at a rate of 600rpm for 30min to obtain a mixture;

[0035] b. obtained by mixing and stirring zirconia and the mixture obtained in step a, drying and pulverizing in an oven at 65°C. ...

Embodiment 2

[0047] 1. A high-temperature-resistant epoxy putty is composed of a main resin and a curing agent; the main resin is composed of 20 parts by weight of heat-resistant coating, 10 parts of silicone resin, 10 parts of epoxy resin, nitrogen 45 parts of nano ceramic micropowder, 4 parts of acrylic acid diluent (X-5); Described curing agent is 5 parts of alicyclic amines by weight.

[0048] Further, the composition of the heat-resistant coating is as follows in parts by weight: 10 parts of zirconia, 17 parts of γ-alumina, 4 parts of graphene, and 16 parts of ethylene glycol.

[0049] Further, the preparation method of described heat-resistant paint is:

[0050] a. Calcining γ-alumina at a temperature of 480°C for 1.5h, blending and grinding with graphene after cooling, adding ethylene glycol and stirring at a rate of 500rpm for 40min to obtain a mixture;

[0051] b. obtained by mixing and stirring zirconia and the mixture obtained in step a, drying and pulverizing in an oven at 60°...

Embodiment 3

[0063] 1. A high-temperature-resistant epoxy putty is composed of a main resin and a curing agent; the main resin is composed of 25 parts by weight of heat-resistant coating, 115 parts of silicone resin, 15 parts of epoxy resin, nitrogen 50 parts of nanometer ceramic micropowder, 10 parts of cyclohexanone; Described curing agent is 10 parts of epoxide addition polyamines by weight.

[0064] Further, the composition of the heat-resistant coating is as follows in parts by weight: 15 parts of zirconia, 24 parts of γ-alumina, 8 parts of graphene, and 28 parts of ethylene glycol.

[0065] Further, the preparation method of described heat-resistant paint is:

[0066] a. Calcining γ-alumina at a temperature of 480°C for 1.5h, blending and grinding with graphene after cooling, adding ethylene glycol and stirring at a rate of 700rpm for 20min to obtain a mixture;

[0067] b. obtained by mixing and stirring zirconia and the mixture obtained in step a, drying and pulverizing in an oven ...

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Abstract

The invention belongs to the technical field of aerospace heat-proof coating repairing, and particularly relates to a high-temperature-resistant epoxy putty and a preparation method thereof. Organic silicon resin and epoxy resin are used for modification treatment, and nitrided nano ceramic micro powder is used as a filler, so that the comprehensive properties such as scrape resistance, sanding property, heat resistance, heat insulation property, environment adaptability, and the like of the putty are guaranteed, the density of a cabin heat-proof coating is effectively improved, and the problem of repairing of a certain type of bomb heat-proof coating is solved.

Description

technical field [0001] The invention belongs to the technical field of aerospace heat-resistant coating repair, and in particular relates to a high-temperature-resistant epoxy putty and a preparation method thereof. Background technique [0002] Epoxy putty is currently used more in the construction field, such as exterior walls, floor coatings, etc. For example, the patent document with application number CN200810217808.X discloses a water-based epoxy putty and its preparation method and use method. It is composed of main agent and special supporting curing agent, wherein the main agent is composed of thickener, defoamer, wetting agent, heavy calcium carbonate, talcum powder, water-based epoxy resin, preservative and water. It is applied to the putty layer and polishing putty for the oil-based topcoat and water-based epoxy sealing primer for polystyrene board external wall insulation, or for water-based fluorocarbon paint, silicone acrylic exterior wall paint, elastic paint...

Claims

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Application Information

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IPC IPC(8): C09D5/34
CPCC09D5/18C09D5/34
Inventor 黄田燕张绍波胡翠赵继华鲁学峰
Owner 贵州航天风华精密设备有限公司
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