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A kind of magnesium phosphate inorganic thermal insulation coating and preparation method thereof

A technology of thermal insulation coating and magnesium phosphate, applied in the direction of coating, etc., can solve the problems of UV resistance and adhesive properties need to be improved, and the thermal insulation performance of thermal insulation coatings needs to be improved, so as to achieve excellent UV resistance, strong adhesion, The effect of the best thermal insulation performance

Active Publication Date: 2017-09-01
SHENZHEN CHAMELEON NEW BUILDING MATERIALS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a magnesium phosphate inorganic heat-insulating coating and a preparation method thereof, aiming at solving problems such as the need to improve the heat-insulating performance of the existing heat-insulating coating, volatile organic compounds, ultraviolet resistance and adhesion Performance and other issues that need to be improved

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  • A kind of magnesium phosphate inorganic thermal insulation coating and preparation method thereof
  • A kind of magnesium phosphate inorganic thermal insulation coating and preparation method thereof
  • A kind of magnesium phosphate inorganic thermal insulation coating and preparation method thereof

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Embodiment 1

[0050] In this embodiment, the raw materials of the magnesium phosphate inorganic thermal insulation coating include DM powder, borax, rutile titanium dioxide, hollow microspheres, potassium dihydrogen phosphate (PDP) powder, and sodium dihydrogen phosphate (SDP) solution, and dihydrogen phosphate A mixed solution of sodium hydrogen phosphate (SDP) and potassium dihydrogen phosphate (PDP). Among them, DM powder is obtained by calcining magnesium oxide at 1200° C. for 5 hours, and then passing through a 150 μm sieve, and its purity is 95.1% (by mass percentage). Potassium dihydrogen phosphate powder has a maximum particle size of 150 μm. Borax It is of chemically pure grade and has a maximum particle size of 150 μm. Rutile titanium dioxide is industrial grade, the average particle size of hollow microspheres is 40μm, and the density (true density) is 0.38g / cm 3 , the compressive strength is 4000psi, and the thermal conductivity is 0.127W / (m·K). Specifically, tap water can be...

Embodiment 2

[0059] In this embodiment, the raw materials of magnesium phosphate inorganic heat-insulating coating include DM powder, borax, rutile titanium dioxide, white cement, hollow microspheres of two different sizes, and sodium dihydrogen phosphate (SDP) and potassium dihydrogen phosphate ( PDP) mixed solution. DM powder is obtained by calcining magnesium oxide at 1200° C. for 5 hours, and then passing through a 150 μm sieve, and its purity is 95.1% (by mass percentage). Borax It is of chemically pure grade and has a maximum particle size of 150 μm. The rutile titanium dioxide and white cement are of industrial grade with a maximum particle size of 150 μm. Table 2 shows the physical properties of hollow microbeads of two different sizes. It should be noted that the type I hollow microbeads in Table 2 are the same as the hollow microbeads used in Example 1. Compared with type I hollow microbeads, type II hollow microbeads have a smaller density (the actual density is 0.15g / cm 3 , ...

Embodiment 3

[0066] In this embodiment, the raw materials of the magnesium phosphate inorganic thermal insulation coating include DM powder, borax, rutile titanium dioxide, white cement, phase change materials, and a mixed solution of PDP and SDP. DM powder is obtained by calcining magnesium oxide at 1200° C. for 5 hours, and then passing through a 150 μm sieve, and its purity is 95.1% (by mass percentage). Borax It is of chemically pure grade and has a maximum particle size of 150 μm. The rutile titanium dioxide and white cement are of industrial grade, and both have a maximum particle size of 150 μm. The thermal characteristics of phase change materials are shown in Table 4, and the parameters of the dissolution process and the condensation process can be referred to in this table (including the initial melting temperature T M-onset , latent heat and initial condensation temperature T F-onset and latent heat), the phase change material of type I is a white powder, and the initial melti...

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Abstract

The invention discloses a magnesium phosphate inorganic heat-insulating coating and a preparation method thereof. The magnesium phosphate inorganic heat-insulating coating comprises: a gelling material, a functional filler, and an additive, and the gelling material is magnesium phosphate. The heat-insulating paint of the present invention has better heat-insulating performance when the heat-insulating paint hardens after coating during use. The magnesium phosphate inorganic heat-insulating coating of the present invention also has the characteristics of strong adhesive performance, excellent ultraviolet resistance performance, zero volatile organic matter, easy preparation and convenient use, and the like.

Description

technical field [0001] The invention relates to the field of heat-insulating coatings, in particular to a magnesium phosphate inorganic heat-insulating coating and a preparation method thereof. Background technique [0002] The thermal comfort of buildings has been a concern for thousands of years. With the growth of population, the demand for thermal comfort of buildings is increasing, and people spend a lot of time indoors. The energy consumption of buildings has become an important part of energy consumption. part. Taking China as an example, by 2020, the domestic housing construction area will reach 6.86 billion square meters, and building energy consumption will account for 33% of the total energy consumption. In addition, in order to keep the indoor temperature at a comfortable level throughout the year, auxiliary heating or cooling systems are widely used, and the greenhouse gas emissions of buildings are greatly increased. Therefore, various strategies and means to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor 李宗津许碧莞施生
Owner SHENZHEN CHAMELEON NEW BUILDING MATERIALS CO LTD
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