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Super-hydrophobic coating agent, transparent super-hydrophobic coating, preparation method and application thereof

A super-hydrophobic coating and transparent technology, applied in the field of polymer materials, can solve the problems of decreased light transmittance of the coating, complicated preparation process of coating materials, difficult large-scale application, etc., to achieve good adhesion and stability, Excellent light transmittance, strong binding effect

Active Publication Date: 2020-07-10
MYS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the prior art, superhydrophobic coatings generally contain inorganic particle fillers, such as silicon dioxide, zinc oxide, titanium oxide, and calcium carbonate; the introduction of inorganic fillers will lead to a decrease in the light transmittance of the coating, making the superhydrophobic Coatings cannot be applied to materials with light transmittance requirements such as lenses and glass, which greatly limits the application range of superhydrophobic coatings
At the same time, in order to increase the bonding force between the superhydrophobic coating and the substrate, a large amount of binder is usually used in the existing superhydrophobic coating, which makes the preparation process of the coating material more complicated, the cost of raw materials and equipment is high, and it is difficult to achieve large application of scale

Method used

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  • Super-hydrophobic coating agent, transparent super-hydrophobic coating, preparation method and application thereof
  • Super-hydrophobic coating agent, transparent super-hydrophobic coating, preparation method and application thereof
  • Super-hydrophobic coating agent, transparent super-hydrophobic coating, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0072] A kind of superhydrophobic coating agent, its preparation method is as follows:

[0073] (1) Preparation of polymer microspheres: Add 0.03g of sodium lauryl sulfate, 1g of glycidyl methacrylate and 20mL of deionized water into a sealed reaction bottle with clean air, stir and heat up to 70°C, then add 0.06g potassium persulfate, continue stirring reaction 3h; Reaction solution is centrifuged, oven dry, obtain described polymer microsphere; Test the surface morphology of described polymer microsphere by metallographic microscope, obtain its particle size distribution: 0.7~1.3μm.

[0074] (2) Preparation of fluoropolymer: 0.26g azobisisobutyronitrile (AIBN), 4.133g trifluoroethyl methacrylate, 0.165g sodium bisulfite, 1g glycidyl methacrylate and 50mL solvent (a mixed solvent with a volume ratio of water and tetrahydrofuran of 10:3) was added to a sealed reaction bottle that was drained of air, stirred and heated to 70°C and then kept for 2.5 hours. The reaction solution...

Embodiment 2

[0079] A kind of superhydrophobic coating agent, its preparation method is as follows:

[0080] (1) Preparation of polymer microspheres: Add 0.05g sodium stearate, 1g styrene, 20mL water and 5mL tetrahydrofuran into a sealed reaction bottle with clean air, stir and heat up to 80°C, then add 0.05g ammonium persulfate , continue to stir the reaction for 3.5h; centrifuge and dry the reaction solution to obtain the polymer microspheres; test the surface morphology of the polymer microspheres by a metallographic microscope, and obtain a particle size distribution of 0.6-1.0 μm .

[0081] (2) Preparation of fluoropolymer: 0.1g azobisisoheptanonitrile, 5g trifluoroethyl methacrylate, 0.2g sodium thiosulfate, 1g methyl methacrylate and 50mL solvent (water and tetrahydrofuran volume Mixed solvent with a ratio of 10:3) was added into a sealed reaction bottle that was evacuated of air, stirred and heated to 70°C, then kept at temperature for 3 hours, and the reaction solution was centri...

Embodiment 3

[0086] A kind of superhydrophobic coating agent, its preparation method is as follows:

[0087] (1) Preparation of polymer microspheres: 0.03g sodium dodecylbenzene sulfonate, 0.5g glycidyl methacrylate, 0.5g styrene and 25mL deionized water were added to a sealed reaction flask draining the air, Stir and heat up to 70°C, then add 0.05g of potassium persulfate, and continue the stirring reaction for 3h; centrifuge and dry the reaction solution to obtain the polymer microspheres; test the surface morphology of the polymer microspheres by a metallographic microscope. Appearance, obtained 500 times metallographic micrograph as shown in figure 1 shown, from figure 1 It can be seen that the particle size distribution is 0.7-1.3 μm.

[0088] (2) Preparation of fluoropolymer: 0.20g sodium persulfate, 4.0g trifluoroethyl methacrylate, 0.12g sodium bisulfite, 1g glycidyl methacrylate and 50mL solvent (water and tetrahydrofuran volume ratio 10:3 mixed solvent) was added into a sealed...

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Abstract

The invention provides a super-hydrophobic coating agent, a transparent super-hydrophobic coating, a preparation method and application thereof. The super-hydrophobic coating agent comprises polymer microspheres dispersed in a solvent, a fluorine-containing polymer and a polymer cross-linking agent. The super-hydrophobic coating agent does not need to use inorganic filler, can form a stable transparent super-hydrophobic coating on various base materials, and has good adhesion to the base materials, a contact angle is more than 150 degrees, a rolling angle is less than 10 degrees and visible light transmittance reaches 83-95%. When the super-hydrophobic coating agent is used for preparing a transparent super-hydrophobic coating, the process method is simple, the universality is high, and the super-hydrophobic coating agent can be widely applied to the surfaces of building curtain walls, automobile windshields, optical lenses, solar panels and the like to achieve the waterproof, anti-pollution and self-cleaning effects.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a superhydrophobic coating agent, a transparent superhydrophobic coating and a preparation method and application thereof. Background technique [0002] A superhydrophobic surface refers to a surface with a contact angle of more than 150 degrees and a rolling angle of less than 10 degrees with water droplets, which has good application prospects in daily life and industrial fields. For example, after the surface of the material is modified with a superhydrophobic coating, using the hydrophobicity of the superhydrophobic coating, the water droplets will take away the pollutants attached to it when they slide off the surface of the material, thereby realizing the self-cleaning of the material; the superhydrophobic coating The super-hydrophobic coating can prevent water-based pollutants from adhering to the surface of the material and achieve anti-fouling effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/16C09D133/14C09D125/06C09D125/14C09D133/12D21H17/35D21H17/37D06M15/277D06M15/273C03C17/32C04B41/83B05D7/14D06M101/06
CPCC09D133/16C09D133/14C09D125/14D21H17/37D21H17/35D06M15/273D06M15/277C03C17/328C03C17/32C04B41/83C04B41/4876B05D7/14D06M2101/06D06M2200/12C08L2201/10C03C2217/445C03C2217/465C03C2218/112C03C2218/114C03C2218/118C03C2218/116C03C2218/111C08L33/14C08L25/06C08L33/16C08L25/14C08L33/12C04B41/4857C04B41/4539C04B41/4543
Inventor 周硕马含笑陈利科
Owner MYS GRP CO LTD