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Method for preparing transparent and heat insulating water ultraviolet curing coating

A technology for curing coatings and ultraviolet light, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor stability, poor coating dispersion, high production cost, and achieve improved dispersion and stability, fast curing speed, and production. Efficient effect

Active Publication Date: 2009-05-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, people have adopted various methods for heat insulation and energy saving treatment, such as filmed glass, solar control coated glass and low-emissivity glass, etc. The visible light transmittance of the former two is low, although the latter has better photothermal performance However, the production price is relatively high, and it is difficult to enter the homes of ordinary people.
Therefore, the development of a heat-insulating transparent coating is the best choice for heat-insulating and energy-saving glass, but to simultaneously satisfy its functions, performance and environmental protection, many problems still need to be solved, such as: solvent-based heat-insulating coatings, Although the dispersion has good stability and good water and solvent resistance, volatile organic solvents cause great environmental pollution; although water-dispersed heat-insulating coatings are environmentally friendly, they have poor water and weather resistance during use. The film-forming performance is not good; the traditional preparation method is to physically blend the functional powder and the matrix resin, and the coating has the problems of poor dispersion, poor stability, and easy agglomeration, resulting in poor heat insulation effect of nano-coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of composition and weight percent (%) of the water-based UV paint of transparent heat insulation are as follows:

[0032] Waterborne UV prepolymer 25

[0033] Thermal insulation nano slurry 50

[0034] Photoinitiator Darocur1173 4

[0035] Deionized water 20

[0036] Defoamer THIX278 0.5

[0037] Leveling agent EFKA3580 0.5

[0038] Wherein the solid content of the heat-insulating nano-slurry is 20%, and it is composed of heat-insulating nano-powder 20g, KH560 (2%) 20g, EFKA4550 dispersant 2g, deionized water 58g, and the preparation method is the same as the above step (1). The preparation method of the paint is the same as the above-mentioned step (2). The prepared paint is applied on the glass surface by spraying, leveled by infrared heating, dried, and cured by ultraviolet radiation to form a film.

Embodiment 2

[0040] A kind of composition and weight percent (%) of the water-based UV paint of transparent heat insulation are as follows:

[0041] Waterborne UV prepolymer 25

[0042] Insulation nano slurry 55

[0043] Photoinitiator Darocur1173 6

[0044] Deionized water 12.8

[0045] Defoamer THIX278 0.6

[0046] Leveling agent EFKA3030 0.6

[0047] Wherein the solid content of the heat-insulating nano-slurry is 15%, and it is composed of heat-insulating nano-powder 15g, KH570 (2%) 15g, EFKA4550 dispersant 1.5g, deionized water 68.5g, and the preparation method is the same as the above-mentioned steps (1) . The preparation method of the paint is the same as the above-mentioned step (2). The prepared paint is applied on the glass surface by spraying, leveled by infrared heating, dried, and cured by ultraviolet radiation to form a film.

Embodiment 3

[0049] A kind of composition and weight percent (%) of the water-based UV paint of transparent heat insulation are as follows:

[0050] Waterborne UV prepolymer 30

[0051] Insulation nano slurry 55

[0052] Photoinitiator Darocur1173 8

[0053] Deionized water 5.4

[0054] Defoamer THIX318 0.8

[0055] Leveling agent EFKA3580 0.8

[0056] Wherein the solid content of the heat-insulating nano-slurry is 10%, and it is composed of heat-insulating nano-powder 10g, KH560 (2%) 8g, KH570 (2%) 2g, EFKA4560 dispersant 1g, deionized water 79g, and the preparation method is the same Step (1) above. The preparation method of the coating is the same as the above step (2). The prepared coating is applied on the glass surface by scraping, infrared heating, leveling, drying, and then curing by ultraviolet radiation to form a film.

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Abstract

The invention relates to a method for preparing an aqueous ultraviolet photo-cured coating with transparence and heat insulation and belongs to the technical field of environment-friendly energy-saving coating. The coating consists of a modified heat insulating nanometer serous fluid for emulsifying and compounding an aqueous UV prepolymer, a light evocating agent, a coating additive and the like. The modified heat insulating nanometer serous fluid carries out emulsification and compounding on the aqueous UV prepolymer so as to obviously improve the dispersion and stability of the coating, wherein a heat insulation nanometer powder body is an oxide consisting of tin, stibium, zinc, copper and aluminum so that the coating has high transparency and heat insulation and low radiation; the coating uses water as a solvent, fully meets the requirement of environmental protection, adopts a spraying or knifing mode, utilizes ultraviolet radiation for curing and film forming, can realize the automatic coating of production lines and has convenient construction; and a coating film has the characteristics of good weather resistance, high rigidity, strong adhesive force and the like.

Description

technical field [0001] The invention relates to a preparation method of a transparent heat-insulating water-based ultraviolet (UV) cured coating, which belongs to the technical field of environmental protection and energy-saving coatings. Background technique [0002] Today, in the face of the increasingly tense situation of energy and resources in the world, my country vigorously advocates the construction of a sustainable development and conservation-oriented society, and the promotion and application of energy-saving coatings is of great significance. Among all kinds of energy consumption, building heating and air-conditioning consume a considerable proportion, and the heat lost through doors and windows accounts for about 60% of the entire building's heating and air-conditioning energy consumption. In recent years, people have adopted various methods for heat insulation and energy saving treatment, such as filmed glass, solar control coated glass and low-emissivity glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D175/16C09D5/00C03C17/00
Inventor 姚伯龙杜郑帅焦钰罗侃倪才华
Owner JIANGNAN UNIV
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