Superhydrophobic inorganic organic nano composite polymeric coating material and preparation method thereof

A polymer coating and nano-composite technology, applied in coatings, polyester coatings, devices for coating liquid on the surface, etc., can solve problems such as poor mechanical properties and unstable super-hydrophobic properties, and achieve low cost and good performance. Industrial application prospect, good stain resistance and self-cleaning effect

Inactive Publication Date: 2010-09-08
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to propose a method for preparing an inorganic-organic nanocomposite polymer surface coating material for the defects in the prior art, which solves the problem of unstable superhydrophobic performance and poor mechanical properties in the current preparation of superhydrophobic coating materials The solution of these problems provides a new direction for the application of superhydrophobic surfaces

Method used

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  • Superhydrophobic inorganic organic nano composite polymeric coating material and preparation method thereof
  • Superhydrophobic inorganic organic nano composite polymeric coating material and preparation method thereof
  • Superhydrophobic inorganic organic nano composite polymeric coating material and preparation method thereof

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Effect test

Embodiment 1

[0044] The glass slides were ultrasonically cleaned in deionized water and dried. Then oxygen plasma cleaning, the treatment condition is that the oxygen flow rate is 200SCCM, the power is 300 watts, and the time is 600 seconds, to obtain a surface with active reflection centers. Take 10-20g of methacrylic acid glycidyl bisphenol A polycondensation resin and dissolve in 5.0-10g of styrene, then add 5-30g of 500nm amino-modified nano silicon dioxide into it, and mix uniformly by mechanical stirring. Add 2% methyl ethyl ketone peroxide and 0.5% cobalt naphthenate to the mixed nanocomposite, and then stir evenly. Spray it on the pre-treated glass sheet, and then put it in an oven at 40-70°C for curing. The measured contact angle of the cured coating material is 159°, and the rolling angle is 9°. After the coating is placed for several days, the contact angle is almost unchanged. After rubbing the coating 20 times with a cloth, the contact angle The angle was not significantly r...

Embodiment 2

[0046] Dry ordinary printing paper in an oven at 60°C. Dissolve 10-40 grams of glyceryl phthalate maleate copolymer in 10-20 grams of styrene, then add 5.0-30 grams of 200nm vinyltriethoxysilane-modified nano-titanium dioxide into it, and mix them by mechanical stirring uniform. Add 2% potassium carbonate and 0.1-1% benzoyl peroxide into the mixed mother liquor, and then stir evenly. Spray it on pre-treated ordinary printing paper, and then put it in an oven at 40-60°C for curing. The measured contact angle of the cured coating material is 157°, and the rolling angle is 14°. After the coating is placed for several days, the contact angle is almost unchanged. After rubbing the coating 20 times with a cloth, the contact angle is almost unchanged. The angle was not significantly reduced. It can be seen that the mechanical properties and wear resistance of the coating are very good, and the hydrophobicity is also very good.

Embodiment 3

[0048] The ceramic sheet was ultrasonically cleaned in deionized water, and then cleaned with oxygen plasma. The treatment conditions were that the oxygen flow rate was 200 SCCM, the power was 300 watts, and the time was 400 seconds. Take 10-20g of polypropylene oxide bisphenol A fumarate resin and dissolve it in 7-10g of styrene, and then add 10-50g of 10nm aminopropyltriethoxysilane-modified nano-iron ferric oxide into it , add 2-3% methyl ethyl ketone peroxide, 0.2-1% cobalt naphthenate, and mix uniformly by mechanical stirring. It is coated on the pre-treated ceramic sheet, and then placed in an oven at 40-70°C for curing. The measured contact angle of the cured coating material is 152°, and the rolling angle is 13°. After the coating is left for a few days, the contact angle is almost unchanged. After rubbing the coating 20 times with a cloth, the contact angle is almost unchanged. The angle was not significantly reduced. It can be seen that the mechanical properties an...

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Abstract

The invention discloses a superhydrophobic inorganic organic nano composite polymeric coating material and a preparation method thereof. The coating material is prepared from 30 to 98 mass percent of thermosetting polymeric precursor and 10 to 70 mass percent of surface functionalized nanoparticle under the action of 0 to 5 mass percent curing agent, wherein the obtained surface water contact angle and rolling angle of the material are 120 to 180 DEG and 1 to 20 DEG respectively; and a falling water drop which is spherical can bounce up and can freely roll on the surface. The method has the characteristic of simple preparation process by using the chemical reaction between organic groups on the surfaces of the polymeric precursor and the modified nanoparticle in the solution. The coating material has the functions of stain resistance, dust prevention and self cleaning.

Description

technical field [0001] The invention relates to a super-hydrophobic coating material and a preparation method thereof, and discloses an inorganic-organic nanocomposite polymer coating material with a super-hydrophobic structure and function that can be covalently combined with a substrate material by a coating method and its preparation method. Preparation. technical background [0002] Composite materials (Composite materials) are materials composed of one material as a matrix and another material as a reinforcement. Various materials learn from each other in terms of performance and produce synergistic effects, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements. Among composite materials, fiber reinforced materials are the most widely used and used in the largest amount. They are characterized by small specific gravity, high specific strength and specific modulus, and are r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D7/12C09D167/06B05D5/02B05D3/02B05D3/04
Inventor 李雪梅何涛李广录贾丽凤郝天歌魏星
Owner NANJING UNIV OF TECH
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