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Preparation method of nano-material modified anti-corrosion high-resistance electrophoresis aluminum profile

A technology of nano-materials and aluminum profiles, applied in the field of aluminum profiles, can solve problems such as low fullness, increased coating costs, and reduced corrosion resistance of aluminum profiles, so as to achieve the effect of improving anti-corrosion performance

Pending Publication Date: 2021-04-16
ANHUI XIN FA ALUMINUM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are still two main problems in domestic acrylic anodic electrophoretic coatings for aluminum profiles: (1) The hardness of the paint film is not high, and the paint film hardness of existing domestic products is usually 2-3H, which is prone to scratches, scratches, etc., thereby reducing the corrosion resistance of aluminum profiles; (2) the fullness is not high, and the common way to solve this problem is to increase the thickness of the paint film, but it will increase the cost of coating

Method used

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  • Preparation method of nano-material modified anti-corrosion high-resistance electrophoresis aluminum profile

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Embodiment 1

[0019] A method for preparing a nano-material modified anti-corrosion and high-resistance electrophoretic aluminum profile, comprising the following steps:

[0020] A. Degrease, wash, neutralize, and wash the aluminum profiles in sequence to obtain pretreated aluminum profiles;

[0021] B. Place the pretreated aluminum profile in a sulfuric acid oxidation tank for electrolytic oxidation treatment and wash with water;

[0022] C. Disperse tetrabutyl titanate in absolute ethanol and stir to obtain a suspension of tetrabutyl titanate in absolute ethanol, then transfer it to a reaction kettle, react at 205°C for 2.5h, and cool to room temperature, Centrifugal washing, drying, and high-temperature calcination to obtain hollow spherical titanium dioxide; then dry-grind hollow spherical titanium dioxide to control the particle size at 50-120nm; ultrasonically disperse nanoscale hollow spherical titanium dioxide in deionized water, and then add it to polyacrylic acid In the ester emu...

Embodiment 2

[0030] A method for preparing a nano-material modified anti-corrosion and high-resistance electrophoretic aluminum profile, comprising the following steps:

[0031] A. Degrease, wash, neutralize, and wash the aluminum profiles in sequence to obtain pretreated aluminum profiles;

[0032] B. Place the pretreated aluminum profile in a sulfuric acid oxidation tank for electrolytic oxidation treatment and wash with water;

[0033] C. Disperse tetrabutyl titanate in absolute ethanol and stir to obtain a suspension of tetrabutyl titanate in absolute ethanol, then transfer it to a reaction kettle, react at 220°C for 2 hours, cool to room temperature, and centrifuge Washing, drying, and high-temperature calcination to obtain hollow spherical titanium dioxide; then dry-grind hollow spherical titanium dioxide to control the particle size at 50-120nm; ultrasonically disperse nanoscale hollow spherical titanium dioxide in deionized water, and then add it to polyacrylate In the emulsion, a...

Embodiment 3

[0041] A method for preparing a nano-material modified anti-corrosion and high-resistance electrophoretic aluminum profile, comprising the following steps:

[0042] A. Degrease, wash, neutralize, and wash the aluminum profiles in sequence to obtain pretreated aluminum profiles;

[0043] B. Place the pretreated aluminum profile in a sulfuric acid oxidation tank for electrolytic oxidation treatment and wash with water;

[0044] C. Disperse tetrabutyl titanate in absolute ethanol and stir to obtain a suspension of tetrabutyl titanate in absolute ethanol, then transfer it to a reaction kettle, react at 180°C for 3 hours, cool to room temperature, and centrifuge Washing, drying, and high-temperature calcination to obtain hollow spherical titanium dioxide; then dry-grind hollow spherical titanium dioxide to control the particle size at 50-120nm; ultrasonically disperse nanoscale hollow spherical titanium dioxide in deionized water, and then add it to polyacrylate In the emulsion, a...

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Abstract

The invention discloses a preparation method of a nano-material modified anti-corrosion high-resistance electrophoresis aluminum profile. The preparation method of the nano-material modified anti-corrosion high-resistance electrophoresis aluminum profile comprises the following steps of pretreating an aluminum profile; then carrying out electrolytic oxidation treatment in a sulfuric acid oxidation tank; then carrying out electrophoretic coating on the aluminum profile by adopting an acrylic resin electrophoretic coating prepared from a nano titanium dioxide modified polyacrylate emulsion, toluenesulfonic acid, hexamethoxymethyl melamine, ethylenediamine and deionized water to obtain an insoluble paint film; and then washing, drying and baking the insoluble paint film. According to the preparation method of the nano-material modified anti-corrosion high-resistance electrophoresis aluminum profile provided by the invention, the nano titanium dioxide modified polyacrylate emulsion is adopted to replace traditional polyacrylate emulsion, so that the corrosion resistance, the adhesive force, the impact resistance,the solvent resistance and the outdoor weather resistance of the paint film can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of aluminum profiles, in particular to a method for preparing electrophoretic aluminum profiles modified with nanometer materials for anticorrosion and high resistance. Background technique [0002] Architectural aluminum profiles are a kind of decorative structural materials. In order to improve their decorative effects, enhance their corrosion resistance and prolong their service life, they generally undergo surface treatment. Therefore, surface treatment has become an essential and extremely important process in the production of architectural aluminum profiles. Various surface treatment methods such as powder coating, fluorocarbon spraying, organic and inorganic dyeing, anodizing, electrophoretic coating, mechanical and chemical polishing, and new color extinction electrophoresis are booming. Among the many surface treatment technologies, electrophoretic coating is because of its high paint utilization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D13/06C25D11/08C25D11/16C09D133/04C09D5/08C09D5/44
Inventor 赵欣泰唐开健李杰王超傅凡一贡玉楼
Owner ANHUI XIN FA ALUMINUM PROD
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