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Metal surface treatment agent for gelatinous film and preparation method of metal surface treatment agent

A technology of surface treatment agent and thin film metal, which is applied in the coating process of metal materials, etc., can solve the problems of anti-corrosion properties of copolymers that have not been discussed, and achieve the effects of inhibiting micro-electrochemical reactions, inhibiting rust, and improving corrosion resistance

Inactive Publication Date: 2015-10-21
HEFEI ZHENGHAO MECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the doping effect of the carboxyl group on the acrylate polymer chain to aniline, an acrylate-aniline copolymer was synthesized by in-situ polymerization; however, the research mainly focused on the effect of aniline content on the dielectric properties of the copolymer, and did not discuss the properties of the copolymer. Anti-corrosion performance
At present, there are few reports on the preparation of anti-corrosion materials by the copolymerization of acrylate and aniline.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A gel-like thin film metal surface treatment agent is characterized in that it is made up of the following raw materials in parts by weight:

[0025] Zinc benzoate 0.1, acetylated lanolin 2.1, phytosterol 0.6, sp-80 1.8, aniline 0.6, butyl acrylate 50, sodium bicarbonate 0.16, bis(γ-triethoxysilylpropyl) tetrasulfide 30 , 75% ethanol 110, 30% hydrogen peroxide 0.3, deionized water 120, fluotitanic acid 4, potassium persulfate 0.38, monoglyceride stearate 3, sodium bisulfite 1.

[0026] A preparation method of a gel-like film metal surface treatment agent, comprising the following steps:

[0027] (1) Take 50% of the weight of the above-mentioned potassium persulfate and 86% of the weight of sp-80, mix it with sodium bicarbonate, add 60% of the weight of deionized water, and stir evenly to obtain an initiator emulsion;

[0028] (2) Take 60% of the remaining deionized water weight, heat it to 90°C, put it into a magnetic stirrer, add monoglyceride stearate under stirring ...

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Abstract

The invention discloses a metal surface treatment agent for a gelatinous film. The surfaces of acrylate adhesive solution particles in the metal surface treatment agent contain a large amount of carboxyls; aniline is added into the acrylate adhesive solution; aniline monomers diffuse to the inside of a micelle first, and are then doped with the carboxyls; subsequently, under the action of an oxidant, the aniline generates a polymerization reaction on the surfaces of emulsion particles, so that a contact angle of a polyaniline coating to water is increased, and the adhesive force and the water resistance are improved; according to the coating, the surface of metal is passivated to form a protecting action under the actions of electron transfer and oxidation reduction; an inorganic component Ti<4+> introduced by silanization-modified hexafluorotitanic acid forms TiO2 particles in a heating and curing process, and the TiO2 particles are uniformly filled in the gaps of a silane film, so that the whole film layer is more uniform and compact, a micro electrochemical reaction on the surface of the film layer can be effectively inhibited, and further the corrosion resistance is greatly improved.

Description

technical field [0001] The invention relates to a treatment agent, in particular to a gel-like film metal surface treatment agent and a preparation method thereof. Background technique [0002] Polyaniline is a kind of conductive polymer material with stable performance and environmental friendliness, and its oxidation-reduction potential is much higher than that of metal. Its coating can passivate the metal surface through electron transfer and redox in acidic or neutral medium. It has a protective effect and is a good material for metal anti-corrosion. However, polyaniline has strong molecular chain rigidity, is insoluble and infusible, and is difficult to process. It is usually used in combination with other film-forming substances. Acrylate resin is a commonly used film-forming substance, which has good film-forming properties and adhesion. [0003] At present, there are three ways to make polyaniline and acrylic resin composite films: polyaniline coating is coated with...

Claims

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Application Information

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IPC IPC(8): C23C22/05
Inventor 郑之松
Owner HEFEI ZHENGHAO MECHANICAL TECH
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