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High-efficiency high-temperature-resistant heat-insulating coating and preparation and coating methods thereof

A heat-insulating coating and high-temperature-resistant technology, which is applied in the direction of fire-proof coatings, coatings, and devices for coating liquid on the surface, can solve the problems that heat-insulating coatings cannot meet the requirements of temperature, space, and weight at the same time, and achieve short preparation cycles , high temperature resistance, strong adhesion

Inactive Publication Date: 2021-12-03
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that the existing thermal insulation coating cannot meet the temperature, space, weight requirements and other problems at the same time

Method used

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  • High-efficiency high-temperature-resistant heat-insulating coating and preparation and coating methods thereof

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preparation example Construction

[0035] The second aspect of the present invention provides a preparation method of high-efficiency high-temperature-resistant heat-insulating coating, and the preparation method includes the following steps:

[0036] (1) Provide silicone rubber adhesive;

[0037] (2) Add heat-insulating fillers and optional diluents into the adhesive solution, and stir evenly to obtain the high-efficiency high-temperature-resistant heat-insulating coating.

[0038] The third aspect of the present invention provides a coating method of high-efficiency high-temperature-resistant heat-insulating paint, and the coating method is a spraying method or a brushing method.

[0039] In some preferred embodiments, the spraying method comprises the steps of:

[0040] (1) Cleaning: clean the substrate to be coated to make its surface clean;

[0041](2) Paint spraying: spray the high-efficiency high-temperature-resistant heat-insulating paint on the surface of the cleaned substrate, wherein the mass ratio...

Embodiment 1

[0052] (1) Weigh 1000g of KH-HP-RTV silicone rubber adhesive, add 1800g of cyclohexane diluent, and use a mechanical stirrer to stir at 1000rpm for 5min to form a uniform adhesive solution;

[0053] (2) Add 300g of hollow glass microspheres, use a mechanical stirrer to stir at 100rpm for 2min, and then stir at 500rpm for 15min to mix evenly to obtain a high-efficiency high-temperature-resistant heat-insulating coating.

[0054] Put the prepared high-efficiency high-temperature-resistant and heat-insulating coating into a watering can, connect the compressed air pipeline to adjust the pressure to 0.5MPa, spray the coating on the surface of a 2mm thick metal plate, and spray 50 times to obtain a heat-insulating coating thickness of about 2mm, put the sprayed product at room temperature for 48 hours.

[0055] After testing, the high-efficiency high-temperature-resistant heat-insulating coating has a density of 0.39g / cm 3 , Quartz lamp 400°C / 1000s heating 256.1°C, quartz lamp 400...

Embodiment 2

[0057] (1) Weigh 1000g of KH-HP-RTV silicone rubber adhesive, add 3000g of cyclohexane diluent, and use a mechanical stirrer to stir at 1000rpm for 5min to form a uniform adhesive solution;

[0058] (2) Add 500 g of hollow glass microspheres, and use a mechanical stirrer to stir at 100 rpm for 2 minutes, and then stir at 500 rpm for 15 minutes to mix evenly to obtain a high-efficiency high-temperature-resistant heat-insulating coating.

[0059] Put the prepared high-efficiency high-temperature-resistant and heat-insulating coating into a watering can, connect the compressed air pipeline to adjust the pressure to 0.5MPa, spray the coating on the surface of a clean and clean 2mm thick metal plate, and spray 50 times to obtain a heat-insulating coating thickness of about 2mm, let the sprayed product stand at room temperature for 48 hours.

[0060] After testing, the high-efficiency high-temperature-resistant heat-insulating coating has a density of 0.33g / cm 3 , quartz lamp 400°C...

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Abstract

The invention relates to a high-efficiency high-temperature-resistant heat-insulating coating and a preparation method and a coating method thereof. The heat-insulating coating comprises a silicone rubber adhesive and a thermal insulation filler, wherein the mass ratio of the silicone rubber adhesive to the heat insulation filler is 100: (30-80). The high-efficiency high-temperature-resistant heat-insulating coating prepared by the invention can resist the temperature of 350-450 DEG C for a long time. Compared with an existing heat insulation coating technology, the efficient high-temperature-resistant heat-insulating coating is small in density, good in heat insulation performance and higher in adhesive capacity. The method can be applied to the fields of industrial kilns, metallurgy, heat supply network pipelines, aerospace and the like.

Description

technical field [0001] The invention relates to the technical field of functional composite materials, in particular to a high-efficiency high-temperature-resistant heat-insulating coating and a preparation and coating method thereof. Background technique [0002] Thermal insulation coating technology is a very efficient and low-cost energy-saving technology, which has important uses in many fields. For example, in the fields of kilns, boilers, heating network pipelines and other fields, various high-temperature components emit a large amount of heat during the working process, and heat-insulating coatings can be used as various materials because of their high temperature resistance, good heat insulation effect and simple construction process. The use of heat insulation materials for high temperature components can reduce the energy consumption of equipment. In the field of aerospace, thermal insulation coatings have become an indispensable part of the structure and thermal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/61B05D7/24B05D5/00
CPCC09D183/04C09D5/18C09D7/61C09D7/70B05D7/24B05D5/00C08K7/28C08K7/24C08K7/26
Inventor 王军辉权成张雅倩张昊周玉贵李文静白莉娟
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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