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Composite metal surface treatment agent based on conducting polymer

A metal surface treatment and conductive polymer technology, applied in the field of metal surface treatment, can solve environmental pollution and other problems, and achieve excellent corrosion effects

Inactive Publication Date: 2016-02-17
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of environmental pollution caused by the existing metal surface treatment. The conductive polymer is used as the main corrosion inhibitor, and the silane coupling agent is organically combined with the organic resin to form a crosslinking system, which acts on the metal surface to form a corrosion inhibitor. Layer has a protective film with excellent corrosion resistance

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific embodiments.

[0018] After the cold-rolled steel plate is polished and derusted, it is degreased with a degreasing solution, rinsed with tap water, rinsed with deionized water, rinsed with industrial alcohol, and dried with hot air before processing.

[0019] The surface of the galvanized sheet is degreased with a degreasing solution, rinsed with tap water, rinsed with deionized water, rinsed with industrial alcohol, and dried with hot air to be pretreated.

[0020] Treatment temperature: room temperature; treatment time: 5-15s; treatment method: dip coating, spray coating, roller coating; curing temperature: 200°C; curing time: 15-60s; film thickness: 0.7-1.5g / m 2 .

[0021] The evaluation of the corrosion resistance of the film obtained by the present invention is realized by neutral salt spray test and electrochemical auxiliary test. The evaluation results are obtained through the f...

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Abstract

The invention discloses a composite metal surface treatment agent based on conducting polymer and belongs to the technical field of metal surface treatment. The surface treatment agent comprises, by mass, 0.05-0.5% of the conducting polymer, 2-10% of organic resin, 1-6% of amino silane coupling agent, 2-9% of an epoxy silane coupling agent, 0-0.5% of an inorganic corrosion inhibitor, an appropriate amount of a PH adjusting agent and the balance deionized water. According to the composite metal surface treatment agent, the conducting polymer serves as a main corrosion inhibitor, the silane coupling agents and the organic resin are organically combined to form a crosslinking system, and the composite metal surface treatment agent acts on the metal surface to form a protection film with excellent corrosion resistance. The composite metal surface treatment agent is free of any toxic substance, solves the problem of environmental pollution caused by existing metal surface treatment and is an environment-friendly metal surface treatment agent.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an environment-friendly surface treatment agent for improving metal corrosion resistance. Background technique [0002] Metal materials generally need to be surface treated to form a dense and stable film on the surface to improve their corrosion resistance, surface gloss and anti-pollution ability. Phosphating and chromate passivation are commonly used for metal surface treatment. Hexavalent chromium is a carcinogen and has serious harm to the human body and the environment, while phosphating treatment will produce a large amount of waste residue and waste water, which will cause serious pollution to the environment. Therefore, it is a very urgent task for metallurgical enterprises to adopt environmentally friendly green treatment methods to replace phosphating or chromate passivation surface treatment technologies. [0003] At present, the technologies used to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/08
CPCC23F11/08
Inventor 陈均陶祯臻赵龙飞张振兴
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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