Preparation method of nanometer modified polymer super-hydrophobic coating

A super-hydrophobic coating and nano-modification technology, applied in coatings and other directions, can solve the problems of low coating strength, poor corrosion resistance, poor wear resistance, etc., and achieve the effect of increasing the interlayer distance and increasing the affinity

Inactive Publication Date: 2018-09-21
邹峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a nano-modified polymer superhydrophobic coating for the defects of low coating strength and poor wear resistance, poor corrosion resistance and failure to meet market requirements in the current common superhydrophobic coatings. Coating Preparation Method

Method used

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  • Preparation method of nanometer modified polymer super-hydrophobic coating

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example 1

[0024]Mix ethyl orthosilicate, tridecafluorooctyltrimethoxysilane and absolute ethanol in a beaker at a volume ratio of 3:1:6, and stir for 16 minutes at a temperature of 35°C to obtain a stirred liquid. Then measure 12mL of ammonia water with a mass fraction of 21% and 36mL of absolute ethanol and mix and stir for 8 minutes to obtain a mixed solution; mix the stirred solution and the mixed solution in a volume ratio of 2:1 and place them in a beaker, continue the heat preservation and stirring reaction for 24 minutes, and stir After the reaction, put it in an oven, dry it at a temperature of 75°C for 35 minutes, grind and discharge the material to obtain a modified silica powder; weigh 55g of montmorillonite and put it into a kiln, and dry it at a temperature of 1050°C Calcined at low temperature for 32 minutes to obtain the calcined product. After cooling naturally to room temperature, the calcined product and deionized water were mixed and stirred for 21 minutes according to...

example 2

[0026] Mix ethyl orthosilicate, tridecafluorooctyltrimethoxysilane and absolute ethanol in a beaker at a volume ratio of 3:1:6, and stir for 19 minutes at a temperature of 40°C to obtain a stirred liquid. Then measure 14mL of ammonia water with a mass fraction of 21% and 40mL of absolute ethanol and mix and stir for 9 minutes to obtain a mixed solution; mix the stirred solution and the mixed solution in a volume ratio of 2:1 and place them in a beaker, continue the heat preservation and stirring reaction for 26 minutes, and stir After the reaction, put it in an oven, dry it for 40 minutes at a temperature of 78°C, grind and discharge the material to obtain a modified silica powder; weigh 57g of montmorillonite and put it into a kiln, and dry it at a temperature of 1070°C Calcined at low temperature for 34min to obtain the calcined product, after natural cooling to room temperature, the calcined product and deionized water were mixed and stirred for 23min according to the mass r...

example 3

[0028] Mix ethyl orthosilicate, tridecafluorooctyltrimethoxysilane and absolute ethanol in a beaker at a volume ratio of 3:1:6, and stir for 21 minutes at a temperature of 45°C to obtain a stirred liquid. Then measure 16mL of ammonia water with a mass fraction of 21% and 42mL of absolute ethanol and mix and stir for 10 minutes to obtain a mixed solution; mix the stirred solution and the mixed solution in a volume ratio of 2:1 and place them in a beaker, continue the heat preservation and stirring reaction for 27 minutes, and stir After the reaction, put it in an oven, dry at 80°C for 45 minutes, grind and discharge the material to obtain modified silica powder; weigh 60g of montmorillonite and put it into a kiln. Calcined under the conditions of 36min to obtain the calcined product, after natural cooling to room temperature, the calcined product and deionized water were mixed and stirred for 24min according to the mass ratio of 1:4 to obtain a suspension; the suspension and cet...

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Abstract

The invention discloses a preparation method of a nanometer modified polymer super-hydrophobic coating, and belongs to the technical field of coating preparation. Firstly, butadiene styrene rubber with abrasive resistance is melted at a high temperature to obtain a softening fluid, so that a system has abrasion resistance; secondly, tetraethoxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, absolute ethyl alcohol and ammonia water are mixed and stirred for reacting, and a hydrophobic effect is achieved. In the preparation method, montmorillonoid is subjected to an activating reaction and an organic reaction and ground to obtain modified montmorillonoid powder, the interlamellar spacing can be increased, and intercalation of base material substances is facilitated. Modified silicon dioxide powder and the modified montmorillonoid powder in the preparation method can be cross-linked with hydroxyl groups in polytetrafluoroethylene, a network structure is formed, and the structure of asystem layer is made to be denser; the system has extremely good chemical stability, corrosion of strong acid, strong base and various chemical products is effectively resisted, the corrosion resistance of the super-hydrophobic coating is further improved, and the preparation method has wide application prospects.

Description

technical field [0001] The invention discloses a preparation method of a nano-modified polymer superhydrophobic coating, which belongs to the technical field of coating preparation. Background technique [0002] Super-hydrophobic coating, that is, the contact angle of water droplets on the surface of the coating is greater than or equal to 150°, and the rolling angle is less than or equal to 10°. Superhydrophobic coatings have good applications in self-cleaning, anti-corrosion, and enhancing blood compatibility. High roughness and low surface energy are important conditions for constructing superhydrophobic materials. In general, micro-nano hierarchical structures and low surface energy modifications are used to construct superhydrophobic coatings. Nanoparticles are commonly used to construct superhydrophobic coatings due to their precisely controlled size and structure. [0003] There have long been superhydrophobic surfaces in nature, such as lotus leaves and cabbag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00
CPCC03C17/002C03C17/007C03C17/009C03C2218/112
Inventor 邹峰赵必花朱彩娣
Owner 邹峰
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