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Heat preservation and insulation coating, preparation method of heat preservation and insulation coating and heat preservation and insulation coating layer

A thermal insulation and coating technology, applied in the field of coatings, can solve the problems of reducing the mechanical properties of the coating, the weak binding force between the surface and the polymer film-forming material, etc., and achieve the improvement of adhesion, impact resistance, mechanical properties, and The effect of thermal insulation performance

Inactive Publication Date: 2021-12-31
上海阿宝实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the thermal insulation coating has good thermal insulation effect, the paint film adhesion measured according to GB / T 1720-1989 "Paint Film Adhesion Test Method" is only grade 4, according to GB / T 1732-1993 The impact strength measured by the "Determination of Impact Resistance of Paint Film" is only 33kg·cm
[0004] In view of the related technologies mentioned above, the inventor believes that although hollow glass microspheres can obviously slow down the transfer of heat, since glass is a typical difficult-to-adhesive material, the binding force between its surface and polymer film-forming substances is very weak, which significantly reduces the coating. Layer mechanical properties

Method used

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  • Heat preservation and insulation coating, preparation method of heat preservation and insulation coating and heat preservation and insulation coating layer
  • Heat preservation and insulation coating, preparation method of heat preservation and insulation coating and heat preservation and insulation coating layer
  • Heat preservation and insulation coating, preparation method of heat preservation and insulation coating and heat preservation and insulation coating layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A thermal insulation coating, the raw materials used in its preparation include polyurethane modified acrylate emulsion, airgel powder, polymer microspheres, fillers, dispersants, film-forming aids, wetting agents, defoamers, thickeners, For pH adjuster, antifreeze, bactericide and deionized water, the specific usage amount of each component raw material is shown in Table 1.

[0059] Among them, the particle size of the airgel powder is 50 μm, which is collected from Keon Nano, the model is KNF-W50, the porosity is ≥ 90%, the thermal conductivity is 0.017-0.023W / (m K), and the specific surface area is 400-700m 2 / g, pore diameter ≈15nm.

[0060] The polymer microspheres are composed of porous polystyrene microspheres with a particle size of 50 μm and monodisperse polystyrene microspheres with a particle size of 0.02 μm in a weight ratio of 1:0.1.

[0061] In addition, the specific types of fillers, dispersants, film-forming aids, wetting agents, defoamers, thickeners, ...

Embodiment 2-5

[0067] A kind of thermal insulation coating, except that each raw material component and its corresponding weight are different from Example 1, other conditions are all the same, as shown in Table 1 specifically.

[0068]

[0069]

[0070] Table 1

Embodiment 6-9

[0091] A thermal insulation coating, except that the particle diameters of porous polystyrene microspheres and monodisperse polystyrene microspheres are different from Example 3, other conditions are the same, porous polystyrene microspheres and monodisperse polystyrene microspheres The particle diameters of the balls are specifically shown in Table 3.

[0092]The coatings prepared in Examples 6-9 were taken as test samples, and the thermal insulation properties, paint film adhesion and impact strength of the coatings in the examples and comparative examples were measured, and included in Table 3 below.

[0093]

[0094]

[0095] table 3

[0096] As can be seen from the data in Table 3, after the steel plate coated with the thermal insulation coating obtained in Examples 6-9 is irradiated by the simulated light source for 20 minutes, the temperature at the center of the back of the steel plate remains substantially constant. At this time, the temperature at the center of...

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Abstract

The invention relates to the field of coatings, and particularly discloses a heat preservation and insulation coating, a preparation method of the heat preservation and insulation coating and a heat preservation and insulation coating layer. The heat preservation and insulation coating is prepared from 40 to 60 parts of polyurethane modified acrylate emulsion; 5 to 10 parts of aerogel powder; 10 to 20 parts of polymer microspheres; the polymer microspheres are formed by mixing porous polystyrene microspheres with the particle size of 50-100 microns and monodisperse polystyrene microspheres with the particle size of 0.02-5 microns according to the weight ratio of 1: (0.1-5). The heat preservation and insulation coating layer is prepared from the heat preservation and insulation coating, and the thickness of the heat preservation and insulation coating layer is 1-5 mm. The heat preservation and insulation coating has relatively good heat preservation and insulation performance, relatively good paint film adhesive force and relatively high impact strength.

Description

technical field [0001] The present application relates to the technical field of coatings, more specifically, it relates to a thermal insulation coating, a preparation method of the thermal insulation coating and a thermal insulation coating. Background technique [0002] Objects exposed to direct sunlight for a long time tend to have a huge temperature difference between inside and outside, which makes the temperature of the outer surface of the object significantly higher than the internal temperature, forming heat transfer and increasing the internal temperature. In order to alleviate the above phenomenon, keep the inside of the object at a relatively constant temperature, and reduce the adverse effects caused by the rise of the internal temperature of the object, thermal insulation coatings have emerged as the times require. The thermal insulation coating is applied to form a thermal insulation coating on the surface of the object, thereby blocking the transfer of heat. ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D175/04C09D7/61C09D7/65
CPCC09D133/00C09D175/04C09D7/61C09D7/70C09D7/65C08L25/06C08K7/24
Inventor 邹向李有河
Owner 上海阿宝实业有限公司
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