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Epoxy resin with super-hydrophobic surface and preparation method for epoxy resin

A technology of super-hydrophobic surface and epoxy resin, which is applied in the direction of coating, etc., can solve the problems of affecting the performance and reducing the mechanical strength, and achieve the effect of stable super-hydrophobic properties, good reproducibility and excellent self-cleaning

Inactive Publication Date: 2012-11-07
上海长歌包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In fact, epoxy resin is widely used in the national economy and industrial and agricultural production due to its many excellent characteristics. However, an obvious disadvantage of epoxy resin is that it has certain hygroscopic characteristics, which often leads to mechanical strength after moisture absorption. reduce the performance

Method used

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  • Epoxy resin with super-hydrophobic surface and preparation method for epoxy resin
  • Epoxy resin with super-hydrophobic surface and preparation method for epoxy resin
  • Epoxy resin with super-hydrophobic surface and preparation method for epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First, sand the surface of the epoxy resin matrix to remove surface defects, then blow off the dust on the surface with a hair dryer, then clean it with tap water, and dry it naturally before use;

[0032] Weigh 20g of E-51 epoxy resin glue (purchased from Yueyang Baling Petrochemical Company) and add it to 100g of acetone for full dilution, then add 1.6g of diethylenetriamine, and mix well by stirring;

[0033] Apply the prepared epoxy resin glue evenly on the epoxy resin matrix with a brush;

[0034] Dissolve 1 gram of polyvinylpyrrolidone in 100ml of absolute ethanol, then slowly add 1 gram of spherical nano-zinc oxide powder with an average particle size of 10 nm into the absolute ethanol in which polyvinylpyrrolidone is dissolved and fully disperse with ultrasonic waves, The nano zinc oxide is uniformly dispersed in ethanol to form a uniform and stable suspension.

[0035] The epoxy resin matrix coated with glue was slowly taken out after dipping in the nano-zinc ...

Embodiment 2

[0039] First, sand the surface of the epoxy resin matrix to remove surface defects, then blow off the dust on the surface with a hair dryer, then clean it with tap water, and dry it naturally before use;

[0040] Weigh 20g of E-51 epoxy resin glue and add it to 1000g of acetone for full dilution, then add 1.6g of diethylenetriamine, and mix evenly by stirring;

[0041] Apply the prepared epoxy resin glue evenly on the epoxy resin matrix with a brush;

[0042] Dissolve 0.5 gram of polyvinylpyrrolidone in 100ml of absolute ethanol, then slowly add 1.5 grams of spherical nano-zinc oxide powder with an average particle size of 30 nanometers into the absolute ethanol in which polyvinylpyrrolidone is dissolved and fully disperse with ultrasonic waves, The nano zinc oxide is uniformly dispersed in ethanol to form a uniform and stable suspension.

[0043] The epoxy resin matrix coated with glue was dipped in the nano-zinc oxide suspension for 1 minute, then slowly taken out, and then...

Embodiment 3

[0047] First, sand the surface of the epoxy resin matrix to remove surface defects, then blow off the dust on the surface with a hair dryer, then clean it with tap water, and dry it naturally before use;

[0048] Weigh 10g of E-51 epoxy resin glue and add it to 500g of acetone for full dilution, then add 0.8g of diethylenetriamine, and mix evenly by stirring;

[0049] Apply the prepared epoxy resin glue evenly on the epoxy resin matrix with a brush;

[0050] Dissolve 1 gram of polyvinylpyrrolidone in 1000ml of absolute ethanol, then slowly add 1 gram of spherical nano-zinc oxide powder with an average particle size of 50 nm into the absolute ethanol in which polyvinylpyrrolidone is dissolved and fully disperse it with ultrasonic waves. The nano zinc oxide is uniformly dispersed in ethanol to form a uniform and stable suspension.

[0051] The coated epoxy resin matrix was dipped in the nano-zinc oxide suspension for 1 minute, then slowly taken out, and then cured in a vacuum dry...

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Abstract

The invention relates to an epoxy resin with a super-hydrophobic surface and a preparation method for the epoxy resin. Due to many excellent characteristics, epoxy resin has wide applications in national economy and industrial and agricultural production. A contact angle of the super-hydrophobic surface with water ranges from 150 degrees to 170 degrees, a rolling angle of water drops on the super-hydrophobic surface is smaller than 5 degrees, and the super-hydrophobic surface has excellent performances such as self cleaning, waterproofness and corrosion resistance. The invention further provides a preparation method for the epoxy resin with the super-hydrophobic surface. The preparation method is simple in process, good in repeatability and free of any expensive equipment and complex chemical processing and has quite good industrial application prospects.

Description

technical field [0001] The invention belongs to the technical field of super-hydrophobic surface preparation technology, and in particular relates to an epoxy resin with a super-hydrophobic surface and a preparation method thereof. Background technique [0002] In recent years, inspired by the "lotus leaf effect", superhydrophobic surfaces with water contact angles greater than 150° and rolling angles less than 5° have attracted widespread attention (References: Barthlott W, Neinhuis C. Purity of the sacred lotus, or escape from contamination in biological surfaces. Planta, 1997, 202(1): 1~8; Feng X, Jiang L. Design and creation of superwetting / antiwetting surfaces. Adv Mater, 2006, 18, 3063~3078; Ma M, Hill R M. Superhydrophobic surface. Curr Opin Colloid Interf Sci, 2006, 11(4):193~202.). On a superhydrophobic surface, water droplets or sewage (such as muddy water, ink, etc.) usually form shiny spherical water droplets, and the water droplets cannot penetrate into the sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L63/00C08L39/06C08K3/22
Inventor 沈卫国袁志庆王许南童天民
Owner 上海长歌包装材料有限公司
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