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High-temperature-resistant heat-proof paint and preparation and use methods thereof

A heat-resistant coating and high-temperature-resistant technology, applied in the field of coatings, can solve the problems of insufficient thermal protection of aerospace carriers, and achieve the effect of solving thermal protection problems and keeping the paint film intact

Active Publication Date: 2012-05-23
ZUNYI FENGHUA ELECTROMECHANICAL FITTINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem of insufficient thermal protection of aerospace carriers in the prior art, and to provide a high-temperature-resistant heat-resistant coating and its preparation method. The coating is mainly used for thermal protection of aerospace carriers, which can effectively protect Aerospace carriers protected from heat damage

Method used

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  • High-temperature-resistant heat-proof paint and preparation and use methods thereof
  • High-temperature-resistant heat-proof paint and preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: coating formulation is shown in Table 1

[0016] Table 1 Formula of high temperature heat insulation coating

[0017]

[0018] Preparation:

[0019] (1) Weighing: First weigh the main resin and various additives and add them to the tank, then weigh the heat-resistant filler to add, finally weigh xylene, and add 60% of xylene to the tank, the rest Xylene was added during grinding.

[0020] (2) Premixing: Stir and mix the weighed material evenly with a nylon stick.

[0021] (3) Dispersion: Disperse the premixed raw materials at a speed of 480r / min~520r / min for 30min~40min, and then disperse at a speed of 680r / min~720r / min for 100min~120min at a high speed. Ensure that the coating system is premixed evenly.

[0022] (4) Grinding: put the pre-mixed uniform raw materials into the horizontal sand mill, add the remaining xylene, install the grinding medium (glass beads or zirconia beads of φ1.5~φ3), connect the cooling water, set After the temperature and...

Embodiment 2

[0025] Embodiment 2: Spray coating of test piece, mainly including pretreatment of test piece, preparation of coating, spraying and curing.

[0026] (a) Pretreatment of the test piece: the test piece (anodized aluminum test piece, oxidized magnesium test piece) is cleaned with gasoline or acetone.

[0027] (b) Coating preparation: Weigh 500g of the coating prepared in Example 1, and then weigh 15g of the amine curing agent diethylenetriamine, mix evenly, and add solvent (diethylenetriamine) to adjust the viscosity to be easy to spray.

[0028] (c) Spraying: Choose a small spray gun for spraying, the air pressure is controlled at about 0.3MPa, the distance of the spray gun is about 20cm, and the thickness of the single-layer wet film is between 20μm and 30μm. The thickness of the conventional performance and heat resistance coating is controlled at 30 μm to 50 μm, and the thickness of the heat insulation coating is controlled at 0.7mm to 0.8mm.

[0029] (d) Curing: The test pi...

Embodiment 3

[0034] Embodiment 3: The spraying of the main wing mainly includes the pretreatment of the test piece, the process protection painting of the test piece, the total spraying of heat-resistant paint, and curing.

[0035] (a) Pretreatment of the main wing: the outer surface of the main wing (magnesium alloy oxidation) is cleaned with gasoline or acetone.

[0036] (b) Process protection spraying: the main wing needs to be sprayed within 24 hours after oxidation as a process protection, and the main wing is sprayed with the paint of Example 1 as a process protection.

[0037] (c) Total spraying of high-temperature heat-resistant and heat-resistant paint: weigh 100 parts of the paint in Example 1 in proportion, 3 parts of amine curing agent diethylenetriamine, mix evenly, and adjust the solubilizer (diethylenetriamine) to achieve an easy-to-spray coating viscosity.

[0038] Choose a large spray gun for spraying, the air pressure is controlled at about 0.35MPa, the spray gun dista...

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Abstract

The invention discloses high-temperature-resistant heat-proof paint and preparation and use methods thereof. The high-temperature-resistant heat-proof paint is prepared from organic silicon resin, epoxy resin, heat-insulation fillers, an assistant and a solvent, and an amine hardener is added when the paint is used. Compared with the prior art, the high-temperature-resistant heat-proof paint provided by the invention has the advantage that a paint film is in a good condition when the paint tolerates the high temperature of 600 DEG C, and the paint has an excellent static heat-insulation performance (at 230 DEG C) and can be used for favorably protecting an aerospace carrier from high-temperature damages, so that the problem on heat protection of the aerospace carrier is solved; and after being applied to the heat-insulation protection for main wings multiple times, the paint is proved to be completely capable of meeting the requirement of product engineering application.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-temperature-resistant and heat-resistant coating and a preparation method thereof. Background technique [0002] With the improvement of comprehensive performance of aerospace carriers in terms of range, flight speed, hit accuracy, and defense penetration capabilities, designers must take into account the weight of the carrier, the structural strength of the material, and the safety of the internal components of the carrier. Because aerospace carriers are generally cast from light alloys (such as aluminum and magnesium alloys), the mechanical properties of the carrier structure drop sharply when the temperature is greater than 300°C. Thermal insulation protection for the carrier is an effective way to solve the above problems. [0003] The working temperature of aerospace carriers can reach above 600°C. Especially for new aerospace carriers, due to the fast flight speed, ...

Claims

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Application Information

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IPC IPC(8): C09D183/00C09D163/00C09D7/12C09D5/00
Inventor 张绍波
Owner ZUNYI FENGHUA ELECTROMECHANICAL FITTINGS CO LTD
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