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Insulating powder coating and preparation method thereof

A powder coating and formulation technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of ineffective reduction of coating density, less thermal insulation cavity, and unsatisfactory thermal insulation performance

Inactive Publication Date: 2013-03-27
SHANGHAI BANGZHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with plastic hollow microspheres, the density of glass hollow microspheres (about 100kg / m3) or ceramic hollow microspheres is relatively high, so at the same dosage, glass hollow microspheres can provide less heat-insulating cavity, Correspondingly, the volume solid content of the coating is low, so under the same construction conditions, the coating using glass hollow microspheres has fewer dry film insulation cavities, lower paint film thickness, and unsatisfactory thermal insulation performance
At the same time, the use of glass or ceramic hollow microspheres cannot effectively reduce the density of the paint, and the cost of paint production and transportation is relatively high;
[0007]2. Poor storage stability:
[0009]3. Inconvenient construction:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The formula of the thermal insulation powder coating of this embodiment is (in parts by weight):

[0030] Hydroxy acrylic resin 45

[0031] Carboxyl-terminated polyester resin 35

[0032] Tetramethoxymethyl glycoluril 2

[0033] Calcium carbonate 25

[0034] Dodecane 2 The preparation method of the above thermal insulation powder coating is:

[0035] 1) Prepare materials according to the weight parts of the formula, and mix them in a high-speed mixer for 4 minutes to obtain a mixture;

[0036] 2) The mixture is extruded in the extruder at 90-110°C to obtain the extruded material;

[0037] 3) The extruded material is pulverized into powder particles of 30-50 microns in a mill, and the powder is passed through a 160-mesh screen, and the passed material is a qualified powder coating product. The powder coating uses 90KV high-voltage electrostatic spraying, curing conditions are 190-210℃, baking 20min, thickness 200 microns. According to JG / T235-2008 (industry standard for building re...

Embodiment 2

[0039] The formula of the thermal insulation powder coating of this embodiment is (in parts by weight):

[0040] Hydroxy acrylic resin 45

[0041] Carboxyl-terminated polyester resin 33

[0042] Tetramethoxymethyl glycoluril 3

[0043] Calcium carbonate 40

[0044] Cetane 15 The preparation method of the above thermal insulation powder coating is:

[0045] 1) Prepare materials according to the weight parts of the formula, and mix them in a high-speed mixer for 5 minutes to obtain a mixture;

[0046] 2) The mixture is extruded in the extruder at 90-110°C to obtain the extruded material;

[0047] 3) The extruded material is pulverized into powder particles of 30-50 microns in a mill, and the powder is passed through a 160-mesh screen, and the passed material is a qualified powder coating product. The powder coating uses 90KV high voltage electrostatic spraying, curing conditions are 190-210℃, baking 15min, thickness 200 microns. According to JG / T235-2008 (industry standard for building ref...

Embodiment 3

[0049] The formula of the thermal insulation powder coating of this embodiment is (in parts by weight):

[0050] Hydroxy acrylic resin 40

[0051] Carboxyl-terminated polyester resin 30

[0052] Tetramethoxymethyl glycoluril 3

[0053] Calcium carbonate 15

[0054] Dodecane 2

[0055] Tetradecane 10 The preparation method of the above thermal insulation powder coating is:

[0056] 1) Prepare materials according to the weight parts of the formula, and mix them in a high-speed mixer for 5 minutes to obtain a mixture;

[0057] 2) The mixture is extruded in the extruder at 90-110°C to obtain the extruded material;

[0058] 3) The extruded material is pulverized into powder particles of 30-50 microns in a mill, and the powder is passed through a 160-mesh screen, and the passed material is a qualified powder coating product.

[0059] The powder coating uses 90KV high-voltage electrostatic spraying, curing conditions are 190-210℃, baking 20min, thickness 200 microns. According to JG / T235-2008 (ind...

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Abstract

The invention relates to an insulating powder coating, comprising the following components in parts by weight: 35-45 parts of hydroxy acrylic resin, 30-35 parts of carboxyl-terminated polyester resin, 2-6 parts of tetramethoxy methyl glycoluril, 10-40 parts of calcium carbonate, and 0.1-1 part of potassium manganate. The powder coating is decomposed at the curing temperature of 190 DEG C to generate oxygen, so that micropores exist on a film; the micropores have a good respiratory action; and the micropores absorb vapor when the humidity is large, so that the surface is kept dry and the coating plays a moisture-proof role.

Description

[0001] technical field [0002] The invention relates to a heat-insulating powder coating, and also relates to a preparation method of the heat-insulating powder coating. Background technique [0003] With the rapid development of my country's construction industry and the increasingly prominent energy crisis, the energy saving and consumption reduction of buildings is becoming more and more important. The proportion of building energy consumption in the entire energy consumption is generally 30-40%, and the vast majority of it is energy consumption for heating and cooling. At present, more than 90% of buildings in my country are high-energy buildings. Therefore, research and development of building insulation Coatings have significant economic, environmental and social benefits. The use of coatings with heat insulation function inside and outside the building can not only realize the original decoration, protection and anti-corrosion functions of the coating, but also make ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/00C09D7/12C09D5/03
Inventor 毕宏海储江顺彭艳华欧阳贵程启山郑飞燕肖伏兰李南平赵凯欧阳圣
Owner SHANGHAI BANGZHONG NEW MATERIAL
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