Superamphiphobic self-cleaned fluorosilicone coating material and preparation method thereof

A coating material and super-amphiphobic technology, applied in coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve the problems of high cost, many types of raw materials, and few types of applicable substrates, and the preparation method is simple. , Stable anti-wetting, high performance effect

Active Publication Date: 2018-10-16
曹颐戬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a super-amphiphobic, self-cleaning fluorosilicon coating material to solve the problem that existing super-amphiphobic and self-cleaning coating materials require many types of raw materials, high cost, complex preparation process of coating materials, and large quantities of materials. The use of nanoparticles, the application process is irreversible, and there are few types of applicable substrates, so it is not suitable for large-scale production and application.

Method used

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  • Superamphiphobic self-cleaned fluorosilicone coating material and preparation method thereof
  • Superamphiphobic self-cleaned fluorosilicone coating material and preparation method thereof
  • Superamphiphobic self-cleaned fluorosilicone coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step 1, prepare fluorosilicone amphiphobic treatment agent

[0057] 1.1 Measure 0.016ml 3-aminopropyltrimethoxysilane and 0.026ml hexafluorocyclopropane trimer respectively;

[0058] 1.2 At room temperature, in a nitrogen environment, first add the 3-aminopropyltrimethoxysilane measured in step 1.1 into the reaction flask, and then slowly dissolve the hexafluorocyclopropane trimer measured in step 1.1 under magnetic stirring Add dropwise to the flask. The reaction was carried out for 6 hours at room temperature in a nitrogen atmosphere to obtain the fluorosilicone amphoteric treatment agent.

[0059] Step 2, configure super-amphiphobic, self-cleaning fluorosilicon coating material

[0060] The reaction product of step 1 was collected and dispersed into 6.40 ml of isopropanol under magnetic stirring to prepare a coating material with a concentration of 1%. The percentages are mass ratios.

[0061] Step 3, using coating materials to prepare superamphiphobic, self-clea...

Embodiment 2

[0065] Step 1, prepare fluorosilicone amphiphobic treatment agent

[0066] 1.1 Measure 0.016ml of 3-aminopropyltriethoxysilane coupling agent and 0.019ml of hexafluorooxypropane trimer respectively;

[0067] 1.2 At room temperature, in a nitrogen environment, add the 3-aminopropyltriethoxysilane measured in step 1.1 into the reaction flask, and under magnetic stirring, add the hexafluoropropylene oxide trimer measured in step 1.1 Slowly add dropwise to the flask. The reaction was carried out at room temperature and nitrogen environment for 8 hours to obtain the fluorosilicone amphoteric treatment agent.

[0068] Step 2, configure super-amphiphobic, self-cleaning fluorosilicon coating material

[0069] The reaction product of step 1 was collected and dispersed into 10.00 ml of isopropanol under magnetic stirring to prepare a coating material with a concentration of 0.05%. The percentages are mass ratios.

[0070] Step 3, using coating materials to prepare superamphiphobic, ...

Embodiment 3

[0074] Step 1, prepare fluorosilicone amphiphobic treatment agent

[0075] 1.1 Measure 0.010ml 3-aminopropyltriethoxysilane and 0.012ml hexafluorooxypropane trimer respectively;

[0076] 1.2 At room temperature, in a nitrogen environment, first add the 3-aminopropyltriethoxysilane weighed in step 1.1 into the reaction flask, and then add the hexafluorocyclopropane trimer weighed in step 1.1 under magnetic stirring Slowly add dropwise to the flask. The reaction was carried out at room temperature in a nitrogen atmosphere for 8 hours to obtain the fluorosilicone amphoteric treatment agent.

[0077] Step 2, configure super-amphiphobic, self-cleaning fluorosilicon coating material

[0078] The reaction product of step 1 was collected and dispersed into 3.20 ml of isopropanol under magnetic stirring to prepare a coating material with a concentration of 1%. The percentages are mass ratios.

[0079] Step 3, using coating materials to prepare superamphiphobic, self-cleaning fluoro...

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Abstract

The invention discloses a superamphiphobic self-cleaned fluorosilicone coating material which comprises raw materials, namely a fluorosilicone amphiphobic treatment agent and a solvent, wherein the fluorosilicone amphiphobic treatment agent is prepared from an amino alkyl silane coupling agent and a hexafluoro oxygen-containing propane tripolymer in a mole ratio of 1 to 1 through reactions at onestep; the solvent is an alcohol or water-alcohol mixed agent. The invention further discloses a method for preparing a superamphiphobic self-cleaned coating from the coating material. The method comprises the following steps: brushing or spraying the prepared coating material to the surface of a substrate, so as to obtain thesuperamphiphobic self-cleaned coating after the solvent is completely volatilized. The fluorosilicone coating material disclosed by the invention is simple in preparation process, a small number of types of raw materials with low cost are used, in addition, the material isfree of toxic and/or side effects on human beings or the environment. The prepared coating has superamphiphobic and self-cleaned functions, meanwhile has pH value stability and durability, and in addition is reversible in coating process, free of damage to base material surface colors or air permeability, applicable to nearly all building base material surfaces, and applicable to on-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of coating materials, and in particular relates to a super-amphiphobic, self-cleaning fluorosilicon coating material and a preparation method thereof. Background technique [0002] Inspired by the special infiltration phenomenon of many biological surfaces in nature, such as the rolling and non-adhesive phenomenon of water droplets on the surface of lotus leaves in the plant kingdom, and the phenomenon of water bugs ("water boatmen") walking on the water surface but not sticking to the water in the animal kingdom, the researchers studied And found that the contact angle (CA) of water on these special surfaces is always greater than 150°. When the CA of the liquid on the surface of the object exceeds 150°, the surface exhibits super anti-wetting properties, and this surface is usually called a superhydrophobic surface. A surface is called a superamphiphobic surface if its contact angles with both water and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16C09D183/08C09D5/08C08G77/26
CPCC08G77/26C09D5/08C09D5/1675C09D183/08
Inventor 曹颐戬王聪
Owner 曹颐戬
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