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Preparation method of aluminum gusset plate with super-hydrophobic surface and aluminum gusset plate with super-hydrophobic surface

A technology of super-hydrophobic surface and aluminum buckle plate, which is applied to the device for coating liquid on the surface, special surface, paint containing biocide, etc., which can solve the cumbersome preparation method, difficulty in preparing with super-hydrophobic surface, and reduce the surface energy of the surface and other problems, to achieve the effect of easy-to-obtain raw materials, high practical value, and improve adhesive performance

Inactive Publication Date: 2020-03-31
浙江迈实科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, methods that require special equipment, such as sol-gel method, surface fluorination method, chemical vapor deposition method, plasma treatment method, and chemical etching method, are mainly used to prepare the surface of hydrophobic substrates, and the preparation method is relatively cumbersome.
And in the preparation process of most superhydrophobic surfaces of existing reports, all relate to using more expensive low surface energy substances, such as compounds containing fluorine or silane to reduce the surface energy of the surface, and many methods involve specific equipment, harsh It is difficult to prepare large-area super-hydrophobic surfaces under certain conditions and a long period of time, which restricts the application of such super-hydrophobic coatings in engineering fields such as exterior wall coatings and industrial coatings.

Method used

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  • Preparation method of aluminum gusset plate with super-hydrophobic surface and aluminum gusset plate with super-hydrophobic surface
  • Preparation method of aluminum gusset plate with super-hydrophobic surface and aluminum gusset plate with super-hydrophobic surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present embodiment provides a kind of preparation method that has superhydrophobic surface aluminum gusset plate, specifically as follows:

[0028] Nano-scale silica pretreatment: Take 2.12g of nano-silica particles, place the cross-linking agent and dispersant in the pre-treatment solvent, wherein the amount of cross-linking agent is 30% of the mass of the silica particles, and the amount of dispersant is two 20% of the mass of silicon oxide particles, adjust the pH to 9, and ultrasonically treat at 30 kHz for 1 hour to obtain surface-modified silicon dioxide particles. The crosslinking agent is dicumyl peroxide; the dispersant is acrylic acid-(meth)acrylate copolymer, and the pretreatment solvent is absolute ethanol.

[0029] Preparation of coating sol: Dissolve 1.02g of pretreated nano-scale silica balls in absolute ethanol, add 0.51g of silane coupling agent KH-550, stir evenly at room temperature, then add water-based epoxy resin coating 1.15 g, hydrophobic PT...

Embodiment 2

[0033] The present embodiment provides a kind of preparation method that has superhydrophobic surface aluminum gusset plate, specifically as follows:

[0034] Nano-scale silica pretreatment: Take 2.59g of nano-silica particles, place the cross-linking agent and dispersant in the pre-treatment solvent, wherein the amount of cross-linking agent is 30% of the mass of the silica particles, and the amount of dispersant is two 20% of the mass of silicon oxide particles, adjust the pH to 9, and 30 kHz ultrasonic treatment for 1 hour to obtain surface-modified silicon dioxide particles. The crosslinking agent is dicumyl peroxide; the dispersant is alkylphenol polyether phosphate, and the pretreatment solvent is absolute ethanol.

[0035]Preparation of coating sol: Dissolve 0.59g of the pretreated nano-scale silica spheres in absolute ethanol, add 0.24g of silane coupling agent KH-550, stir evenly at room temperature, and then add water-based epoxy resin coating 0.68g, hydrophobic PTF...

Embodiment 3~5

[0041] Examples 3-5 compared the influence of different silane coupling agents KH-550 on the surface contact angle of the epoxy resin superhydrophobic coating of the final aluminum gusset plate.

[0042] Preparation of coating sol: take respectively 0.52 g of nano-scale silica spheres pretreated in Example 1 and dissolve them in absolute ethanol, add 30%, 40% and 60% of nano-scale silica spheres respectively The joint agent KH-550 was stirred evenly at room temperature, then 1.15g of water-based epoxy resin coating and 0.55g of hydrophobic PTFE were added, and the reaction was continuously stirred to obtain a coating sol.

[0043] Application of coating sol: put the aluminum buckle plate in the above coating sol, lift it out from the coating sol at a slow and uniform speed with a pulling machine, and the pulling speed is 60mm / s; after putting it out, let it stand at room temperature for use;

[0044] Forming of epoxy resin super-hydrophobic coating: Put the coated aluminum gus...

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Abstract

The invention discloses a preparation method of an aluminum gusset plate with a super-hydrophobic surface. The preparation method includes the following steps that S1, a coating sol is prepared, specifically, silica particles are added into a solvent, stirring is performed under the condition of 0-100 DEG C for sufficient reaction, and then water-based epoxy resin coating and a hydrophobic agent are added and stirring is performed for reaction to prepare the coating sol; S2, the coating sol is applied, specifically, the prepared sol is evenly applied on the surface of a aluminum gusset plate base, and standing is performed at a room temperature for stand-by use; and S3, the epoxy resin super-hydrophobic coating is formed, specifically, the coated aluminum gusset plate is placed into an oven, epoxy resin is cured and cross-linked in a temperature range of 230-260 DEG C, and the aluminum gusset plate with the epoxy resin super-hydrophobic coating is obtained after taking out. The surfaceof a base material is covered with the epoxy resin super-hydrophobic coating, micro-scale spaced hydrophobic globular protrusions are formed on the surface of the base material, a nano-scale air layer is formed at the bottom to maximize a contact angle and to minimize a slip angle, and anti-fouling and water-proof functions are achieved on the surface of the base material.

Description

technical field [0001] The invention belongs to the technical field of decorative materials, and in particular relates to a preparation method of an aluminum gusset plate with a super-hydrophobic surface and an aluminum gusset plate with a super-hydrophobic surface. Background technique [0002] Aluminum gussets are based on aluminum alloy sheets, which are obtained by cutting, cutting corners, and molding. The surface of aluminum gussets is processed with various coatings to obtain various aluminum gussets. Aluminum gussets are mainly divided into two types. There are two types, one is integrated aluminum gusset for home decoration, and the other is engineering aluminum gusset. At the beginning, aluminum gusset for home decoration mainly consists of two series: roll coating and frosting. [0003] With the development, integrated aluminum gussets for home improvement have become various, and various processing techniques have been applied to them, such as thermal transfer, g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/14B05D7/24C09D163/00C09D5/16
CPCB05D5/00B05D7/14B05D7/24B05D2202/25B05D2504/00B05D2601/24B05D2602/00C08K2201/011C09D5/1687C09D163/00C08L27/18C08K9/04C08K7/18C08K5/544
Inventor 杨晟尧孔洋波林路云张捷李思贤
Owner 浙江迈实科技有限公司
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