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A self-cleaning UV-cured transparent heat-insulating coating and its preparation method

A heat-insulating coating and ultraviolet light technology, applied in polyether coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve problems such as flammability, poor leveling, and poor yellowing resistance, and improve construction performance and use safety , the effect of low surface energy

Active Publication Date: 2019-12-24
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention aims to solve is that the existing oil-based transparent heat-insulating coatings are more toxic, flammable, poor in use safety, and pollute the environment. The water-based transparent heat-insulating coatings have low solid content, slow drying speed, high viscosity, and poor mechanical properties. , poor weather resistance, poor water resistance, poor leveling, poor yellowing resistance and other problems, the problem of single function of UV-curable transparent heat-insulating coating, and a self-cleaning UV-curable transparent heat-insulating coating is proposed, another aspect of the present invention The purpose also provides the preparation method of the above-mentioned self-cleaning UV-curable transparent heat-insulating coating

Method used

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  • A self-cleaning UV-cured transparent heat-insulating coating and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Add 0.5 parts by mass of nano-ATO and 1.5 parts by mass of nano-TiO to a four-necked flask equipped with a stirring device, a thermometer and a condenser tube 2 , a mixed solution of 50 parts by mass of methanol and 0.5 parts by mass of a silane coupling agent (KH-570), heated to 50°C, and refluxed for 12h. After cooling to room temperature, the product was transferred to a rotary evaporator, and methanol was distilled off by heating. Add trifluorooctyl methacrylate and ultrasonically disperse for 1 hour to prepare a modified nano functional element / fluorine-containing reactive diluent mixed slurry with a solid content of 8%.

[0025] 10 mass parts of epoxy acrylic acid oligomer, 1 mass part of modified nano functional element / fluorine-containing active diluent mixed slurry prepared above, 2 mass parts of ethylene glycol dimethacrylate, trimethylolpropane 3 parts by mass of trimethacrylate, mix uniformly, add 0.2 parts by mass of photoinitiator 1173, 0.1 parts by mass ...

Embodiment 2

[0027] Add 1.0 parts by mass of nano-ATO and 1.0 parts by mass of nano-TiO to a four-necked flask equipped with a stirring device, a thermometer and a condenser tube 2 , a mixed solution of 50 parts by mass of methanol and 1.0 parts by mass of a silane coupling agent (KH-570), heated to 60°C, and refluxed for 18h. After cooling to room temperature, the product was transferred to a rotary evaporator, and methanol was distilled off by heating. Add hexafluorobutyl methacrylate and ultrasonically disperse for 1.5 hours to prepare a modified nano functional element / fluorine-containing reactive diluent mixed slurry with a solid content of 10%.

[0028] Mix 10 parts by mass of polyurethane acrylic acid oligomer, 3 parts by mass of the modified nano-functional element / fluorine-containing active diluent mixed slurry prepared above, and 3 parts by mass of diethylene glycol dimethacrylate, and mix uniformly. Add 0.8 parts by mass of UV photoinitiator 907, 0.2 parts by mass of leveling a...

Embodiment 3

[0030] Add 1.5 parts by mass of nano-ATO and 0.5 parts by mass of nano-TiO to a four-necked flask equipped with a stirring device, a thermometer and a condenser tube 2 , a mixed solution of 50 parts by mass of methanol and 1.5 parts by mass of silane coupling agent (KH-570), heated to 70°C, and refluxed for 24h. After cooling to room temperature, the product was transferred to a rotary evaporator, and methanol was distilled off by heating. Add trifluoroethyl methacrylate and ultrasonically disperse for 2 hours to prepare a modified nano functional element / fluorine-containing reactive diluent mixed slurry with a solid content of 15%.

[0031] Mix 10 parts by mass of polyether acrylic acid oligomer, 5 parts by mass of the modified nano functional element / fluorine-containing active diluent mixed slurry prepared above, and 1 part by mass of 1,4-butanediol dimethacrylate. Evenly, add 1.5 parts by mass of photoinitiator BP, 0.3 parts by mass of leveling agent ( Rad 2100) and 0.3 ...

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Abstract

The invention relates to a self-cleaning type ultraviolet-curing transparent thermal-insulation coating and a preparation method thereof. The ultraviolet-curing transparent thermal-insulation coating is prepared from active oligomer, an ultraviolet initiator, modified nano functional unit / reactive fluorinated diluent mixed slurry, a multifunctional group reactive diluent, a leveling agent and a defoaming agent through compounding. The coating has the advantages of being non-toxic, safe to use, yellowing-resistant, non-inflammable, thermal-insulated, low in surface energy, good in light transmittance performance and the like and can be applied to curtain wall glass of buildings, automobile window glass and other situations.

Description

technical field [0001] The invention relates to a heat-insulating coating and a preparation method thereof, in particular to a self-cleaning ultraviolet-cured transparent heat-insulating coating and a preparation method thereof. Background technique [0002] Nano-transparent heat-insulating glass coating is a new type of energy-saving and environmentally-friendly material developed in recent years. Because of its high visible light transmittance and good energy-saving and heat-insulating effects, it can be applied to building curtain wall glass and automobile window glass. It has attracted academic and great attention from the industry. This coating introduces inorganic semiconductor nanoparticles (such as ATO, ITO, AZO, FTO, etc.) and near-infrared light region energy transfer, blocking more than half of the sunlight energy; at the same time, because the particle size of nanoparticles is in the nanometer scale, which is much smaller than the wavelength range of visible lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D175/14C09D171/00C09D5/08C09D5/16C09D7/62
CPCC08K2003/2241C08K2201/011C08L2201/10C09D5/08C09D5/1618C09D5/1662C09D5/1687C09D163/10C09D171/00C09D175/14C08L83/04C08K9/06C08K3/22
Inventor 项尚林赵石林吴凯华支伟强王晨晨
Owner NANJING TECH UNIV
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