Fingerprint-resistant transparent coating layer and preparation method thereof

A clear coating, fingerprint-resistant technology, used in coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of fingerprint stain residue, loss of effect, weak adhesion on smooth glass surfaces, etc., to achieve excellent fingerprint resistance. The effect of excellent fingerprint resistance and easy availability of raw materials

Inactive Publication Date: 2020-06-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: In view of the fact that the existing AF coating still has obvious residues of fingerprint stains when the finger is pressed, and its binding force wi

Method used

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  • Fingerprint-resistant transparent coating layer and preparation method thereof
  • Fingerprint-resistant transparent coating layer and preparation method thereof
  • Fingerprint-resistant transparent coating layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 1 mass part of alkyd varnish, 0.6 mass part of catalyst dibutyl tin dilaurate, 1 mass part of curing agent JIAO-HI100, 0.6 mass part of leveling agent BYK333, and 0.6 mass part of adhesion promoter BYK-4500 0.8 parts by mass, 5 parts by mass of diluent butyl acetate, and 1 part by mass of perfluoropolyether DAIKIN L-200 were mixed and mechanically stirred for 5 hours to obtain a fingerprint-resistant transparent coating, which was coated on the cleaned transparent glass by dip coating sheet surface. The dipping process is as follows: the dipping speed is 500 μm / s, the dipping time is 60s, and the number of dipping times is 2 times. After dipping, put it in an oven at 80°C for 2 hours to cure, and perform fingerprint resistance performance characterization on glass slides with fingerprint-resistant transparent coatings. as attached figure 1 As shown, the left side of the picture is the coating part. It can be seen that after pressing the fingerprint, the residue i...

Embodiment 2

[0021] Take 3 parts by mass of ester glue varnish, 1.5 parts by mass of catalyst dibutyltin dilaurate, 2 parts by mass of curing agent JIAO-HI100, 8 parts by mass of leveling agent TEGO4501, and 2.4 parts by mass of adhesion promoter LTH parts, 18 parts by mass of diluent butyl acetate, 3 parts by mass of perfluoropolyether DAIKIN L-200, mixed mechanically for 5 hours to obtain a fingerprint-resistant transparent coating, which was coated on the surface of a cleaned transparent glass slide by wiping . The rubbing process is: drop 0.5mL of paint on the base of 20cm 2 On the base (every 20cm 2 The substrate needs about 0.5mL paint), wipe it back and forth with a dust-free cloth until it is evenly coated on the surface of the substrate, then put the sample in an oven to cure, and perform fingerprint resistance performance on the glass slide with fingerprint-resistant transparent coating. By comparing the residual rate of fingerprints with and without coating, the anti-fingerpri...

Embodiment 3

[0023] Take 2 parts by mass of shellac varnish, 1 part by mass of catalyst dibutyltin dilaurate, 1 part by mass of curing agent JIAO-HI100, 5 parts by mass of leveling agent BYK3451, and 5 parts by mass of adhesion promoter BYK-4510 1 part by mass, 14 parts by mass of diluent butyl acetate, and 3 parts by mass of perfluoropolyether DuPont GPL105 to obtain a fingerprint-resistant transparent coating, which is coated on the surface of a cleaned transparent glass slide by dip coating. The dipping process is as follows: the dipping speed is 500 μm / s, the dipping time is 80s, and the number of dipping times is 2 times. After dip-coating, place it in an oven at 80°C for 2 hours to cure. The fingerprint-resistant performance of the glass slide with the anti-fingerprint transparent coating is characterized. By comparing the residual rate of fingerprints with and without coating, the anti-fingerprint rate of the coating is 65%. %.

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Abstract

The invention provides a fingerprint-resistant transparent coating layer and a preparation method thereof. The preparation method comprises the following steps: under the condition of a room temperature, sequentially adding acrylic resin, a catalyst, a leveling agent, an adhesion promoter, a curing agent, a diluent and perfluoropolyether into a material mixing pot, and carrying out stirring so asto obtain a fingerprint-resistant transparent resin coating material; wiping a to-be-coated substrate with alcohol and acetone through a non-woven fabric so as to remove oil stains in sequence, and spraying or wiping the fingerprint-resistant transparent resin coating material onto the substrate, or dip-coating the substrate in the fingerprint-resistant transparent resin coating material to form afilm, wherein the substrate is glass, polished stainless steel or bright plastic; and putting a coated substrate into a drying oven at 80-120 DEG C, and carrying out curing for 1-2 hours so as to obtain the fingerprint-resistant transparent resin coating layer on the substrate. The hydrophobic and oleophylic fingerprint-resistant transparent coating layer prepared by using the preparation methodprovided by the invention has a deionized water contact angle of 95-100 degrees and a tetradecane contact angle of 10-15 degrees, and belongs to a hydrophobic and oleophylic fingerprint-resistant coating layer.

Description

technical field [0001] The invention belongs to the field of chemical materials, and in particular relates to a fingerprint-resistant transparent coating and a preparation method thereof. Background technique [0002] The advancement of science and technology has facilitated and enriched people's lives, such as the application of interactive systems, packaging, automotive interiors, and various hardware and electrical appliances. However, fingerprints and skin oil residues are the biggest problems affecting the aesthetics, transparency and gloss of the touch surface during use. For example, the most common mobile phones and tablet computers, entertainment enriches life, but people are often annoyed by stains on the screen surface (mainly fingerprints), water droplets are not easy to roll off the screen and other problems. Therefore, a beautiful, clean appearance is increasingly becoming an extremely important requirement, and in recent years, a fingerprint-resistant surfa...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D193/02C09D171/00C09D5/16C09D5/08B05D7/24
CPCB05D7/24B05D2502/00B05D2506/10C08L2201/10C09D5/08C09D5/16C09D167/08C09D171/00C08L71/00C08L67/08C08L93/02
Inventor 张友法刘江余新泉
Owner SOUTHEAST UNIV
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