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Fluorine-containing organopolysiloxane self-cleaning paint and production method thereof

A technology of polysiloxane and siloxane, applied in the direction of non-pigment coating, coating, fiber raw material treatment, etc., can solve the problems of application limitations of fluoropolymer coatings, and achieve improved hydrophobicity and good thermal stability , the effect of high mechanical strength

Active Publication Date: 2020-02-14
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the gradual improvement of people's awareness of environmental protection and energy saving, the restrictions on the content of VOC (volatile organic compounds) in various countries have become increasingly strict. Coating application is subject to certain restrictions

Method used

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  • Fluorine-containing organopolysiloxane self-cleaning paint and production method thereof
  • Fluorine-containing organopolysiloxane self-cleaning paint and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0019] Stir and mix 1H,1H,2H,2H-perfluorodecyltriethoxysilane 0.05g and PDMOS 1g evenly under magnetic stirring, spray on the substrate to form a film, place in an atmosphere containing 1% ammonia water, 80 °C in a constant temperature and humidity chamber for 48 hours (humidity 80%) to obtain a fluorine-containing organopolysiloxane superhydrophobic coating, the results are shown in Table 1.

Embodiment approach 2

[0021] Mix 0.1 g of 1H, 1H, 2H, 2H-perfluorododecyltriethoxysilane with 1 g of PDMOS under magnetic stirring, and then spray it on the substrate to form a film, and place it in an atmosphere containing 5% ammonia water. React in a constant temperature and humidity chamber at 60°C for 48 hours (humidity is 40%) to obtain a fluorine-containing organopolysiloxane superhydrophobic coating. The results are shown in Table 1.

Embodiment approach 3

[0023] Mix 0.3 g of 1H, 1H, 2H, 2H-perfluoroheptadecanetrimethoxysilane with 1 g of PDMOS under magnetic stirring, stir and mix evenly, after completely dissolving, spray on the substrate to form a film, place in an atmosphere containing 5% ammonia water, React in a constant temperature and humidity chamber at 50°C for 12 hours (humidity is 60%) to obtain a fluorine-containing organopolysiloxane superhydrophobic coating. The results are shown in Table 1.

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Abstract

The invention relates to the field of paint, and discloses fluorine-containing organopolysiloxane self-cleaning paint and a production method thereof. The fluorine-containing organopolysiloxane self-cleaning paint comprises 5-50 wt% of a fluorine-containing siloxane precursor and 50-95 wt% of a siloxane prepolymer. The production method of the fluorine-containing organopolysiloxane self-cleaning paint comprises the following steps: in a normal-temperature environment, mixing and stirring the fluorine-containing siloxane precursor and the siloxane prepolymer, and after an obtained mixture is stirred evenly, spraying the obtained mixture onto a substrate to form a film; and placing the substrate in a constant-temperature constant-humidity environment containing an ammonia water atmosphere, and performing standing for preset time to obtain a fluorine-containing organopolysiloxane self-cleaning coating. The self-cleaning coating has the characteristics of high hydrophobicity, a good self-cleaning effect, high wear resistance, a wide use range and the like. Compared with the prior art, the production method has the advantages that operation of the method is simpler and more convenient,and the method is free from solvents; and the market prospects are wide.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a fluorine-containing organopolysiloxane superhydrophobic self-cleaning paint and a preparation method thereof. Background technique [0002] Superhydrophobic self-cleaning coatings have attracted widespread attention because of their ability to remove dust and dirt on the surface by natural forces such as wind, rain, and gravity. At present, many preparation methods have been developed for superhydrophobic surfaces, such as sol-gel method, solution immersion method, chemical etching method, plasma etching method, electrochemical deposition method, anodic oxidation method, template method, electrospinning method, High temperature thermal oxidation method, etc. However, there are still some problems in the process of research and development and application. For example, a common problem is that the rough structure on the surface of the superhydrophobic self-cleaning co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C08G77/24D21H19/32D21H21/14D06M15/657
CPCC09D183/08C08G77/24D21H19/32D21H21/14D06M15/657D06M2200/12
Inventor 张世忠刘永涛刘永健杨昌佑蔡鹏倪伶俐
Owner HUAIYIN INSTITUTE OF TECHNOLOGY