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Preparation method for high stain-resistant and thermal-insulating type UV curing fluorine coating

A fluorine coating and anti-fouling technology, which is applied in the direction of anti-fouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of low visible light transmittance, unfavorable large-scale promotion, light pollution, etc., and achieves the preparation method And the effect of simple equipment, high visible light transmittance, uniform and transparent coating film

Inactive Publication Date: 2012-01-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the metal-coated heat-reflective glass and various heat-reflective films used in the market, although they can block part of the sunlight to achieve the purpose of heat insulation and cooling, but there are some problems in the application of these products. Metal-coated heat reflection Glass has a good heat insulation effect, but the transmittance of visible light is very low, and its application on building glass will affect indoor lighting; the high reflection of metal-coated heat-reflective glass on visible light will cause light pollution, and its application in buildings is currently prohibited
Although the heat reflective film glass has a high visible light transmittance, but the heat insulation effect is poor
There are also the above two heat insulation methods, which require expensive equipment, a large amount of energy consumption, and high cost, which is not conducive to large-scale promotion in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 30g of perfluorooctanoic acid methacrylamidoethyl, and add 3.0g of acrylic acid, 40.0g of butyl acrylate, 50.0g of methyl methacrylate, and 20.0g of hydroxyethyl methacrylate to the prepared fluorine-containing monomer into the dropping funnel Add 2.00g of dodecanethiol, 2.00g of BPO, and 70g of xylene. Pass nitrogen into the flask, start the heating reaction, the temperature is below 140°C, and at the same time control the solution dripping rate in the dropping funnel, drop 80% to 90% into the flask within 4 hours of reaction, and add the remaining solution dropwise after 2 hours of reaction. and continue to react for 1 hour to obtain a resin with a molecular weight of 2,000 to 5,000. Add 20 g of glycidyl methacrylate, 0.2 g of 4-methoxyphenol, and 0.36 g of triethylamine to the flask, and control the reaction temperature at 110°C , reacted for 2h to obtain UV curable fluororesin.

[0036] Take nanoscale tin dioxide, cobalt oxide, titanium dioxide, silicon dioxid...

Embodiment 2

[0045] Take 28g of perfluorooctanoic acid methacrylamidoethyl, and add 3.0g of acrylic acid, 45.0g of butyl acrylate, 45.0g of methyl methacrylate, and 18.0g of hydroxyethyl methacrylate to the prepared fluorine-containing monomer into the dropping funnel Add 2.00g of dodecanethiol, 2.00g of BPO, and 70g of xylene. Pass nitrogen into the flask, start the heating reaction, the temperature is below 140°C, and at the same time control the solution dripping rate in the dropping funnel, drop 80% to 90% into the flask within 4 hours of reaction, and add the remaining solution dropwise after 2 hours of reaction. and continue to react for 1 hour to obtain a resin with a molecular weight of 2,000 to 5,000. Add 22 g of glycidyl methacrylate, 0.2 g of 4-methoxyphenol, and 0.36 g of triethylamine to the flask, and control the reaction temperature at 110°C , reacted for 2h to obtain UV curable fluororesin.

[0046]Take 5.00g each of nanoscale tin dioxide, cobalt oxide, titanium dioxide, a...

Embodiment 3

[0055] Take 32g of perfluorooctanoic acid methacrylamidoethyl, add 3.0g of acrylic acid, 42.0g of butyl acrylate, 52.0g of methyl methacrylate, and 22.0g of hydroxyethyl methacrylate to the prepared fluorine-containing monomer, and put it into the dropping funnel Add 2.00g of dodecanethiol, 2.00g of BPO, and 70g of xylene. Pass nitrogen into the flask, start the heating reaction, the temperature is below 140°C, and at the same time control the solution dripping rate in the dropping funnel, drop 80% to 90% into the flask within 4 hours of reaction, and add the remaining solution dropwise after 2 hours of reaction. and continue to react for 1 hour to obtain a resin with a molecular weight of 2,000 to 5,000. Add 18 g of glycidyl methacrylate, 0.2 g of 4-methoxyphenol, and 0.36 g of triethylamine to the flask, and control the reaction temperature at 110°C , reacted for 2h to obtain UV curable fluororesin.

[0056] Take nanoscale tin dioxide, cobalt oxide, titanium dioxide, silico...

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Abstract

The invention discloses a preparation method for a high stain-resistant and thermal-insulating type UV cured fluorine coating, belonging to the technical field of photo-cured coatings. In the invention, dispersant, thinner and different nanometer powder are taken to be respectively placed in a beaker, the pH is regulated to be 9.0-10.0, the mixture is stirred by a magnetic stirrer for 30-60min, and then ultrasonic dispersion is carried out for 30-60min. Ultrasonic agitation is stopped to obtain nanometer powder sizing agent. The several sizing agents are mixed and evenly stirred according to the mass ratio of the different nanometer powder; UV cured fluorine resin, defoamer and thickener are added into the obtained mixed sizing agent of the nanometer powder; and the pH is regulated to be 9.0-10.0, so as to obtain the high stain-resistant and thermal-insulating type UV curing fluorine coating. The invention has simple preparation method and convenient preparation and construction process, and does not need expensive equipment; and the raw materials are cheaper than ATO and ITO, thereby effectively reducing production cost and being beneficial to market promotion. The prepared fluorine coating has higher visible light transmittance, infra-red reflectivity, transparent coating films, strong hardness, favorable adhesive force, stain resistance, ultraviolet ray aging resistance and high stain resistance.

Description

technical field [0001] The invention relates to a stain-resistant transparent heat-insulating ultraviolet light-cured fluorine coating used on building glass, in particular to a preparation method thereof, and belongs to the technical field of light-cured coatings. Background technique [0002] With the rapid development of social economy, energy saving has become the focus of the whole society. Because ordinary glass is not selective to sunlight, when sunlight passes through the glass window, the heat generated by sunlight radiation is also transmitted into the room at the same time, increasing the indoor temperature. The poor heat insulation effect of ordinary glass is one of the main reasons for the energy loss or energy consumption increase of buildings. The hot summer makes the air conditioning load significantly increase. Fluorocarbon coatings are widely used in many fields due to their good performance. For example, the use of fluorocarbon coatings in the protection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D7/12C09D5/16C09D5/00C03C17/32
Inventor 姚伯龙孔祥永李海亮褚路轩李祥
Owner JIANGNAN UNIV
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