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Transparent super-hydrophobic coating for preventing calligraphy and painting from being polluted as well as preparation method and application thereof

A super-hydrophobic coating and anti-fouling technology, applied in the field of coatings, can solve the problems of losing the meaning of protection, affecting the appearance of calligraphy and painting, high anti-fouling performance and high temperature resistance of super-hydrophobic coatings, and achieving strong pollution ability and good transparency. Effect

Active Publication Date: 2018-06-19
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is that super-hydrophobic calligraphy and painting require high transparency. If the transparency is not good, it will affect the appearance of calligraphy and painting, and lose the meaning of protection
The third is that calligraphy and painting may often be exposed to external pollution (such as beverage pollution, ink pollution, ink pollution, etc.), and calligraphy and painting generally require high-temperature ironing before mounting, so the anti-fouling performance and high-temperature resistance of super-hydrophobic coatings are high.
Based on the above factors, the existing superhydrophobic coatings have certain limitations in realizing superhydrophobicity for calligraphy and painting.

Method used

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  • Transparent super-hydrophobic coating for preventing calligraphy and painting from being polluted as well as preparation method and application thereof
  • Transparent super-hydrophobic coating for preventing calligraphy and painting from being polluted as well as preparation method and application thereof
  • Transparent super-hydrophobic coating for preventing calligraphy and painting from being polluted as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 2g SiO to the mixture of 75mL ethanol and 75mL water 2 (Zhejiang Wanjing New Material Co., Ltd., SP-30 type, the same below), stirred for 10 minutes, and then added 2mL KH560 (Shanghai Aladdin Biochemical Co., Ltd.), 2mL FAS-17 (Quanzhou Sikang New Material Co., Ltd.) company), continue to stir and react at room temperature for 20 minutes, and then ball mill in a ball mill for 4 hours to obtain a superhydrophobic coating.

[0034] After spraying the paint on the surface of calligraphy and painting for 3 times, bake it at 120°C for 40min ( figure 1 ), to obtain a superhydrophobic coating ( figure 2 ), see the specific reaction mechanism image 3 ( image 3 d shows the mechanism for the reaction of amine groups with epoxy groups). In the colored area of ​​calligraphy and painting, the static contact angle is 154.0°, and the rolling angle is 8.8°. In the calligraphy and painting area without ink and pigment, the static contact angle is 154.2°, and the rolling angl...

Embodiment 2

[0039] The ethanol / water mixing ratio in Example 1 is adjusted to only add 150mL of ethanol, and the others are the same as in Example 1 to obtain a super-hydrophobic coating.

[0040] After spraying the coating on the surface of calligraphy and painting for 3 times, bake it at 120°C for 40 minutes to obtain a super-hydrophobic coating. The static contact angle in the colored area of ​​calligraphy and painting is 151.7°, and the rolling angle is 9.0°. The static contact angle in the non-ink and pigment area of ​​calligraphy and painting is 152.0°, and the rolling angle is 9.0°.

Embodiment 3

[0042] The ethanol / water mixing ratio in Example 1 is adjusted to ethanol / water=30:120, and the others are the same as in Example 1 to obtain a super-hydrophobic coating.

[0043] After spraying the coating on the surface of calligraphy and painting for 3 times, bake it at 120°C for 40 minutes to obtain a super-hydrophobic coating. The static contact angle in the colored area of ​​calligraphy and painting is 150.5°, and the rolling angle is 9.3°. The static contact angle in the ink and pigment-free area of ​​calligraphy and painting is 150.5°, and the rolling angle is 9.2°.

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Abstract

The invention discloses transparent super-hydrophobic coating for preventing calligraphy and painting from being polluted as well as a preparation method and application thereof. The method comprisesthe following steps: adding inorganic nanoparticles into a mixed solution of ethanol and water and uniformly mixing; then adding hybridized siloxane and fluorine-containing siloxane into the obtainedsolution; stirring at room temperature for 10 to 30min; then carrying out ball milling for 4 to 6h by utilizing a ball milling instrument to obtain the super-hydrophobic coating. The transparent super-hydrophobic coating for preventing the calligraphy and painting from being polluted, disclosed by the invention, is used as calligraphy or painting super-hydrophobic coating; the application is as follows: a substrate of the calligraphy or painting is coated with the super-hydrophobic coating and the super-hydrophobic coating is cured at 80 to 150 DEG C to obtain a super-hydrophobic pollution-preventing coating layer. The surface of the coating layer has a very strong beverage pollution, even Chinese ink / ink pollution prevention capability and has a certain high-temperature resisting capability. Meanwhile, the content of silicon dioxide is controlled in a certain range and a very food transparent effect can be realized; the appearance of the calligraphy and painting is not influenced.

Description

1. Technical field [0001] The invention relates to the technical field of coatings, in particular to a transparent super-hydrophobic coating for anti-pollution of calligraphy and painting, a preparation method and application thereof. 2. Background technology [0002] Paper is a very common and important material in our lives. However, compared to plastic, paper is not waterproof and is easily polluted and damaged by the outside world. In recent years, superhydrophobic coatings have been applied to various fields due to their excellent properties such as self-cleaning, high temperature resistance, and antifouling. Applying superhydrophobic coatings to the surface of paper can make paper waterproof, antifouling, self-cleaning and other properties [Applied Surface Science, 2016, 389, 354-360; Langmuir, 2012, 28, 4605-4608]. Xiao Huining and others mixed two or more waxes with different melting points to form a superhydrophobic coating after fusion, emulsification, and drying ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D5/16C09D7/61
CPCC08G77/24C09D4/00C09D5/1687C09D5/18C09D183/08
Inventor 冯杰孔祥威林伟强
Owner ZHEJIANG UNIV OF TECH
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