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Water-based heat-insulation coating and preparation method thereof

A thermal insulation and coating technology, applied in the coating and other directions, can solve the problems of harm to the human body and the environment, high toxicity of organic substances, etc., and achieve the effects of not easy to fall off, excellent coating performance, and excellent thermal insulation function.

Active Publication Date: 2018-02-23
任雨慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the organic matter in the organic coating is highly toxic, harmful to the human body and the environment, and the organic heat insulation layer has fire hazards, thereby providing a water-based heat insulation coating

Method used

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  • Water-based heat-insulation coating and preparation method thereof
  • Water-based heat-insulation coating and preparation method thereof

Examples

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Embodiment 1

[0022] A water-based thermal insulation coating, comprising the following raw materials in parts by weight: 18 parts of water glass, 20 parts of sodium metaaluminate, 35 parts of silica sol, 8 parts of aluminum sulfate, 2 parts of sodium hydroxide, 15 parts of calcium sulfate, bentonite 8 parts, 3 parts cinnabar, 80 parts water. Its preparation method comprises the following steps:

[0023] (1) Preparation of crystal nuclei: Weigh each component in proportion for later use, add sodium metaaluminate into water glass, stir at 35°C for 8 hours at a stirring speed of 200r / min, and obtain mixed solution A;

[0024] (2) Preparation of gel: first place aluminum sulfate in a reaction vessel, then slowly add silica sol, control the feeding time at 40 minutes, stir for 30 minutes, and stir at a speed of 600 r / min, then dissolve sodium hydroxide in a part of water, add Put it into the reaction vessel, continue to stir for 60 minutes, and finally add the mixed solution A into the reactio...

Embodiment 2

[0027] A water-based thermal insulation coating, comprising the following raw materials in parts by weight: 25 parts of water glass, 12 parts of sodium metaaluminate, 55 parts of silica sol, 5 parts of aluminum sulfate, 4 parts of sodium hydroxide, 10 parts of calcium sulfate, bentonite 12 parts, 1 part red clay, 130 parts water. Its preparation method comprises the following steps:

[0028] (1) Preparation of crystal nuclei: Weigh each component in proportion for later use, add sodium metaaluminate into water glass, stir at 25°C for 16 hours at a stirring speed of 100r / min, and obtain mixed solution A;

[0029] (2) Preparation of the gel: first place aluminum sulfate in the reaction vessel, then slowly add the silica sol, the addition time is controlled at 20 minutes, stir for 90 minutes, and the stirring speed is 400 r / min. Then dissolve sodium hydroxide in a part of water, add it into the reaction vessel, continue to stir for 40 minutes, and finally add the mixed liquid A ...

Embodiment 3

[0032] A water-based thermal insulation coating, comprising the following raw materials in parts by weight: 22 parts of water glass, 16 parts of sodium metaaluminate, 45 parts of silica sol, 7 parts of aluminum sulfate, 3 parts of sodium hydroxide, 12 parts of calcium sulfate, bentonite 10 parts, 2 parts of titanium dioxide, 100 parts of water. Its preparation method comprises the following steps:

[0033] (1) Preparation of crystal nuclei: Weigh each component in proportion for later use, add sodium metaaluminate into water glass, stir at 33°C for 12 hours at a stirring speed of 150r / min, and obtain mixed solution A;

[0034] (2) Preparation of gel: first place aluminum sulfate in a reaction vessel, then slowly add silica sol, control the feeding time at 30 minutes, stir for 60 minutes, and stir at a speed of 500 r / min, then dissolve sodium hydroxide in a part of water, add Into the reaction vessel, continue to stir for 50min. Finally, add the mixed solution A into the reac...

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Abstract

The invention belongs to the technical field of coatings, and concretely relates to a water-based heat-insulation coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 18 to 25 parts of water glass, 12 to 20 parts of sodium metaaluminate, 35 to 55 parts of silica solution, 5 to 8 parts of aluminum sulfate, 2 to 4 parts of sodium hydroxide, 10 to 15 parts of calcium sulfate, 8 to 12 parts of bentonite, 1 to 3 parts of pigment, and 80 to 130 parts of water. The water-based heat-insulation coating prepared by the method provided bythe invention adopts pure inorganic materials as the raw materials and water as a solvent so as to be economic and environmentally-friendly, and cannot harm a human body and an environment; the coating prepared by the method provided by the invention contains a nanometer material with a certain mesoporous so as to have an excellent heat insulation function; in the formula, the bentonite and the calcium sulfate are compositely used, so that the coating has an excellent coating performance and is not easy to fall off.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based thermal insulation coating and a preparation method thereof. Background technique [0002] At present, most of the coatings used for indoor and outdoor decoration are latex paints. Latex paints are mainly a large class of synthetic resin emulsion paints with acrylate copolymer resin emulsion as base material and water as dispersant. Although this type of polymeric resin itself is safe and non-toxic, some unpolymerized volatile toxic free monomers and various organic additives remaining in the resin will still pollute the indoor air and cause harm to human health. With the continuous enhancement of people's awareness of health and environmental protection, the environmental protection requirements for interior decoration coatings are also getting higher and higher. In addition, the synthetic resin emulsion raw materials are all derived from limited petr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61
Inventor 任雨慧
Owner 任雨慧
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