Unlock instant, AI-driven research and patent intelligence for your innovation.

Superhydrophobic self-cleaning coating for photovoltaic solar energy and preparation method thereof

A self-cleaning coating, photovoltaic solar technology, applied in the field of materials, can solve the problems of the loss of super-hydrophobic properties on the surface of the coating, the short service time of the super-hydrophobic coating, and the inability to effectively remove pollutants, etc., to achieve outstanding self-cleaning function, strong Durability, resistance to contamination and mechanical damage

Inactive Publication Date: 2018-08-28
深圳市源驰科技有限公司
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many kinds of pollutants in the actual air environment, including hydrophilic dust pollutants, lipophilic organic pollutants, solid pollutants, liquid pollutants, and a mixture of various pollutants. , the existing super-hydrophobic coating cannot effectively remove all pollutants with different characteristics, resulting in the loss of super-hydrophobic properties on the coating surface due to the continuous accumulation of pollutants in the actual use process. In addition, mechanical friction and weather aging and other reasons will gradually lose the superhydrophobic properties of the coating.
Therefore, the existing superhydrophobic coating still has the problem that the actual service time is too short

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Mix the nanoparticles with nano-photocatalytic activity and the xylene solution with a mass concentration of 10% according to a weight ratio of 1:5, and then stir for 30 minutes at a temperature of 50 ° C and a rotation speed of 1000 r / min to obtain the first mixture; Among them, the nanoparticles with nano-photocatalytic activity are TiO 2 .

[0032] Add polyvinylidene fluoride, isopropanol solution with a mass concentration of 12%, and triethyl phosphate solution with a mass concentration of 10% to the first mixture, and stir for 60 minutes at a temperature of 40°C and a rotational speed of 1200r / min. Obtain the second mixture; Wherein the weight ratio of nanoparticle with nano-photocatalytic activity and polyvinylidene fluoride is 1:1, polyvinylidene fluoride, mass concentration are 12% isopropanol solution and mass concentration are 10% phosphoric acid The weight ratio of triethyl ester solution is 1:1:1.

[0033] Add hydrophobic silicone resin to the second mixtu...

Embodiment 2

[0036] Mix the nanoparticles with nano-photocatalytic activity with the mixed solution of butyl acetate and ethyl acetate with a mass concentration of 20% according to the weight ratio of 3:5, and then stir for 60min at a temperature of 60°C and a speed of 800r / min. , to obtain the first mixture; wherein, the nanoparticles with nano-photocatalytic activity are ZnO and SnO 2 mixture.

[0037] In the first mixture, adding polyvinylidene fluoride, mass concentration of 15% isopropanol, n-octanol, n-hexane and n-octane mixed solution and mass concentration of 15% dimethyl phthalate solution, at temperature Stirring for 90min at 50°C and a rotational speed of 1000r / min to obtain a second mixture; wherein the weight ratio of nanoparticles with nano-photocatalytic activity to polyvinylidene fluoride is 2:1, and the mass concentration of polyvinylidene fluoride is 15 The weight ratio of the mixed solution of % isopropanol, n-octanol, n-hexane and n-octane to the dimethyl phthalate wi...

Embodiment 3

[0041] Mix the nanoparticles with nano-photocatalytic activity with a mixed solution of xylene, butyl acetate, ethyl acetate, acetone and methyl ethyl ketone with a mass concentration of 15% according to a weight ratio of 2:5, and then at a temperature of 55 ° C and a rotation speed of Stir for 50min under the condition of 900r / min to obtain the first mixture; wherein, the nanoparticles with nano-photocatalytic activity are ZnS, CeO 2 , GaO 2 , SbO 3 and Bi 2 o 3 mixture.

[0042] In the first mixture, add polyvinylidene fluoride, a mixed solution of n-propanol, isopropanol, n-octanol, n-hexane and n-octane with a mass concentration of 13%, and ethylene glycol ester and cyclohexane with a mass concentration of 12%. The ketone mixed solution was stirred for 80 minutes at a temperature of 45°C and a rotational speed of 1100r / min to obtain a second mixture; wherein the weight ratio of nanoparticles with nano-photocatalytic activity to polyvinylidene fluoride was 1:1, polyviny...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of materials, in particular to a superhydrophobic self-cleaning coating for photovoltaic solar energy and a preparation method thereof. The preparation method comprises the following steps: mixing nanoparticles having nano photocatalytic activity with a first solvent and stirring for 30 to 60 minutes to obtain a first mixture; adding polyvinylidene fluoride, a second solvent and a diluent to the first mixture to obtain a second mixture; adding a hydrophobic silicone resin to the second mixture to obtain a third mixture; adding carbon powder to the third mixture, stirring at 120-150 DEG C for 30 to 45 minutes, then cooling to 45 to 60 DEG C, evaporating for 2 to 3 hours, then coating a thin layer, and baking at 40 to 60 DEG C. The coating prepared by thismethod has outstanding self-cleaning function, is of strong stability and durability, and can resist pollution, mechanical damage and the like.

Description

technical field [0001] The invention relates to the field of materials, and in particular to a superhydrophobic self-cleaning coating for photovoltaic solar energy and a preparation method thereof. Background technique [0002] In recent years, self-cleaning coatings have received extensive attention. The super-hydrophobic (water contact angle > 150°) self-cleaning coating removes dust by rolling water droplets to achieve a self-cleaning function similar to lotus leaves. However, there are many kinds of pollutants in the actual air environment, including hydrophilic dust pollutants, lipophilic organic pollutants, solid pollutants, liquid pollutants, and a mixture of various pollutants. , the existing super-hydrophobic coating cannot effectively remove all pollutants with different characteristics, resulting in the loss of super-hydrophobic properties on the coating surface due to the continuous accumulation of pollutants in the actual use process. In addition, mechanical...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/16C09D183/04C09D5/16C09D7/61
CPCC08K2003/2241C08K2201/011C08L2203/204C09D5/1675C09D5/1687C09D127/16C09D183/04C08L83/04C08K3/22C08K3/04C08L27/16
Inventor 郭雷石维罗兴怀张仁辉王凯秦杨黄伟杨应昌
Owner 深圳市源驰科技有限公司