Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-cleaning paint and preparation method thereof

A self-cleaning and coating technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, chemical instruments and methods, etc., can solve the problems of environmental protection, low fluorine and silicon reagents, and high prices

Inactive Publication Date: 2018-02-16
XIAMEN RUNNER IND CORP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, many hydrophobic materials have disadvantages such as poor physical and chemical stability, high price and environmental protection, and most superhydrophobic materials need fluoroether reagents to be used as solvents for dilution, because the surface of traditional fluorosilicone reagents Although the energy is very low, although it is beneficial for the material to achieve superhydrophobic performance, the fluorosilicon reagent and the fluoroether solvent will cause great harm to the ecological environment and the human body.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-cleaning paint and preparation method thereof
  • Self-cleaning paint and preparation method thereof
  • Self-cleaning paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a self-cleaning paint, comprising the steps of:

[0022] 1. Synthesis of guanidinium iodide ionic liquid

[0023] Under the protection of nitrogen and ice-water bath, 1,1,3,3-tetramethylguanidine, perfluoroiodobutane and acetonitrile were reacted at room temperature for 24h according to the molar ratio of 1:1.1:3; Unreacted perfluorobutane iodide was removed by pressure distillation to obtain iodoperfluorobutane guanidine salt ionic liquid.

[0024] 2. Preparation of guanidinium salt ionic liquids containing fluoride anions

[0025] Under the protection of nitrogen, iodide perfluorobutane guanidinium salt ionic liquid, sodium tetrafluoroboride and water according to the molar ratio of 1:1:5, stirred and reacted at room temperature for 6h, the product was extracted with dichloromethane, and the organic phase with anhydrous Na 2 SO 4 After drying, dichloromethane was removed under reduced pressure to finally obtain a guanidinium salt ionic liqui...

Embodiment 2

[0028] A method for preparing a self-cleaning paint, comprising the steps of:

[0029] 1. Synthesis of guanidinium iodide ionic liquid

[0030] Under the protection of nitrogen and ice-water bath, 1,1,3,3-tetramethylguanidine, perfluorooctyl iodide and acetonitrile were reacted at room temperature for 24 hours at a molar ratio of 1:1.1:3; filtered, The unreacted perfluorooctyl iodide was distilled off under reduced pressure to obtain iodoperfluorooctaneguanidine salt ionic liquid.

[0031] 2. Preparation of guanidinium salt ionic liquids containing fluoride anions

[0032] Under the protection of nitrogen, the iodoperfluorooctane guanidine salt ionic liquid, sodium tetrafluoroboride and water were mixed according to the molar ratio of 1:1:6, stirred and reacted at room temperature for 6h, the product was extracted with dichloromethane, and the organic phase with anhydrous Na 2 SO 4 After drying, dichloromethane was removed under reduced pressure to finally obtain a guanidi...

Embodiment 3

[0035] A method for preparing a self-cleaning paint, comprising the steps of:

[0036] 1. Synthesis of guanidinium iodide ionic liquid

[0037] Under the protection of nitrogen and ice-water bath, react 1,1,3,3-tetramethylguanidine, 2-iodo-perfluorodecane and acetonitrile at a molar ratio of 1:1.1:3 at room temperature for 24 hours; Filtrate and distill off unreacted perfluoroiodobutane under reduced pressure to obtain iodoperfluorodecaneguanidine salt ionic liquid.

[0038] 2. Preparation of guanidinium salt ionic liquids containing fluoride anions

[0039] Under the protection of nitrogen, iodoperfluorodecane guanidine salt ionic liquid, sodium hexafluorophosphide and water were mixed according to the molar ratio of 1:1:5, stirred and reacted at room temperature for 6h, the product was extracted with dichloromethane, and the organic phase with anhydrous Na 2 SO 4 After drying, dichloromethane was removed under reduced pressure to finally obtain a guanidinium salt ionic l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a self-cleaning paint. The structure of the paint is shown in the description. The invention also discloses a preparation method of the self-cleaning paint. The preparation method comprises the following steps: carrying out electrophilic addition reactions between 1,1,3,3-tetramethyl guanidine and perfluoro-halo-hydrocarbon to obtain a coarse product; separating and purifying the coarse product to obtain a fluorine containing ionic liquid of guanidine salts, and finally adding an ion exchanger to carry out ion exchange to obtain a guanidine salt ionic liquid containingnegative fluorine ions. Water is taken as the diluent, the paint is green and environmentally friendly, and the surface of a product processed by the paint is easy to clean and is resistant to corrosion.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a self-cleaning coating and a preparation method thereof. Background technique [0002] Hydrophobic surface has attracted great attention because of its special properties. As a functional surface protection material, it has been applied in the fields of self-cleaning, anti-icing and anti-bacteria. For example, in the bathroom industry, hydrophobic coatings are used on the surface of products, and are widely used in faucets and sinks. They are especially suitable for electroplating products, which can effectively prevent corrosion, and can be waterproof, oily and other pollutants and easy to clean. Not only It can increase the service life and improve the additional performance. [0003] In the home appliance industry, hydrophobic coatings are used for outdoor antennas, which can prevent snow from covering the antenna surface from interfering with its received signals,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D5/16C09D5/08C09D7/00C07C277/08C07C279/06
CPCC09D5/08C07C277/08C07C279/06C09D5/1625
Inventor 金碧曹朝贵彭晓璊李明仁
Owner XIAMEN RUNNER IND CORP