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Water-based hydrophobic self-cleaning over-printing varnish and preparation method thereof

A varnish and hydrophobic technology, which is applied in the field of coatings, can solve problems such as less consideration of charge dust adsorption, impact on human health, and difficulty in mass production, and achieve good adhesion fastness, excellent drying, safety, environmental protection, and no peculiar smell damage effect

Inactive Publication Date: 2021-11-05
CHENGDU PRESSTER NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At this stage, hydrophobic self-cleaning varnish has the following deficiencies, high preparation cost, and difficult to prepare in large quantities; traditional hydrophobic self-cleaning varnish uses organic solvents to dissolve and reconcile solid materials, and after construction and use, a large amount of organic solvents volatilize and enter Atmosphere, which pollutes the environment and affects human health; and the current hydrophobic self-cleaning varnish has little consideration for the adsorption of charged dust in outdoor buildings, and the self-cleaning effect is limited

Method used

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  • Water-based hydrophobic self-cleaning over-printing varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A water-based hydrophobic self-cleaning varnish, which is composed of the following raw materials in mass percentage: fluorine-modified water-based acrylic resin 43%, M5 inorganic-organic silicon resin 26%, water-based epoxy resin 18%, white phosphor XL-20 5 %, paraffin powder 3.4%, thickener 1.2%, anti-settling agent VK-Sp15W 0.8%, leveling agent EL-2503 0.5%, defoamer TEG Airex 9000.5%, antistatic agent AES200 0.3% and adhesion promoter EL-9041 0.2%, PH stabilizer 0.8%, fungicide YURUI-20 0.3%;

[0027] Its preparation method is as follows: the raw materials, except surfactant, adhesion promoter and antistatic agent, are mixed according to the stated ratio, stirred and dispersed, and then ground to obtain a fineness below 25 μm, and then added with the stated ratio Surfactant, adhesion promoter, bactericide, PH stabilizer and antistatic agent, the viscosity reaches 70-150 seconds in the 4# cup, filter and pack to get "Product A".

Embodiment 2

[0029] A water-based hydrophobic self-cleaning varnish, which is composed of the following raw materials in mass percentage: fluorine-modified water-based acrylic resin 41%, M5 inorganic-organic silicon resin 23%, water-based epoxy resin 20%, white phosphor XL-20 7 %, paraffin powder 4.4%, thickener 1.2%, anti-settling agent VK-Sp15W 0.8%, leveling agent EL-2503 0.5%, defoamer TEG Airex 9000.5%, antistatic agent AES200 0.3% and adhesion promoter EL-9041 0.2%, PH stabilizer 0.8%, fungicide YURUI-20 0.3%;

[0030] Its preparation method is as follows: the raw materials, except surfactant, adhesion promoter and antistatic agent, are mixed according to the stated ratio, stirred and dispersed, and then ground to obtain a fineness below 25 μm, and then added with the stated ratio Surfactants, adhesion promoters, bactericides, PH stabilizers and antistatic agents, the viscosity reaches the 4# cup for 70-150 seconds, then filter and pack to get "Product B".

Embodiment 3

[0032] A water-based hydrophobic self-cleaning varnish, which is composed of the following raw materials in mass percentage: fluorine-modified water-based acrylic resin 43%, M5 inorganic-organic silicon resin 29%, water-based epoxy resin 15%, white phosphor XL-20 5 %, paraffin powder 3%, thickener 1.6%, anti-settling agent VK-Sp15W 0.8%, leveling agent EL-2503 0.5%, defoamer TEG Airex 900 0.5%, antistatic agent AES200 0.3% and adhesion promotion Agent EL-9041 0.2%, PH stabilizer 0.8%, fungicide YURUI-200.3%;

[0033] Its preparation method is as follows: the raw materials, except surfactant, adhesion promoter and antistatic agent, are mixed according to the stated ratio, stirred and dispersed, and then ground to obtain a fineness below 25 μm, and then added with the stated ratio Surfactants, adhesion promoters, bactericides, PH stabilizers and antistatic agents, the viscosity reaches the 4# cup for 70-150 seconds, filter and pack to get "Product C".

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Abstract

The invention discloses water-based hydrophobic self-cleaning over-printing varnish and a preparation method thereof, and belongs to the technical field of paints. The water-based hydrophobic self-cleaning over-printing varnish is prepared from, by mass, 50%-90% of component resin, 8%-20% of functional powder and 1%-10% of auxiliaries, wherein the component resin is water-based epoxy resin, fluorine-modified water-based acrylic resin and M5 inorganic-organic silicon resin, and the functional powder comprises white light fluorescent powder, paraffin powder and a thickening agent. The coating disclosed by the invention is completely made of a water-based material, is safe, environment-friendly and odorless, and avoids harm to constructors and users; the automatic stripping and self-cleaning functions of surface charged pollutants are realized through light energy absorption and release and electron transition; the varnish can adapt to the surfaces of various base materials such as metal, glass, concrete and ceramic, is high in adhesive force, weather-resistant, rain-wash-resistant, excellent in drying property and good in adhesion fastness; and surface microorganisms are removed by slowly releasing light energy at night and sterilizing ions, so that the surface of the gloss oil coating is kept smooth and clean, and influence of microorganism breeding on use is prevented.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based hydrophobic self-cleaning varnish and a preparation method thereof. Background technique [0002] Varnish is a coating applied to the surface of an item to increase gloss and protect the inner layer. A layer of coating that is made of a resin with good film-forming properties dissolved in a solvent (medium) to make a transparent and bright material with a certain fluidity and viscosity, which can improve the aesthetics of the product and other properties. In order to beautify the city, a layer of varnish is often applied to the surfaces of various building materials such as metal, glass, concrete, and pottery. The performance requirements for the varnish of urban buildings generally include hydrophobicity, self-cleaning property, wear resistance and scratch resistance, etc. [0003] Surface hydrophobic technology is an extensive and profound basic technology with...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D163/00C09D5/14C09D7/40
CPCC09D133/00C09D5/14C09D7/40C08L2205/025C08L63/00
Inventor 史险锋何静
Owner CHENGDU PRESSTER NEW MATERIALS