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Metal surface protective agent and production method

A metal surface and production method technology, applied in the field of metal surface protective agents for aluminum, silver, tin, copper, lead and alloys, can solve problems such as polluted environment, poor adhesion, poor salt spray corrosion resistance, etc. Simple, product-friendly effect

Inactive Publication Date: 2012-10-03
YIYANG HUAXING MACHINERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are firstly poor adhesion, and secondly, environmental pollution, especially poor salt spray corrosion resistance (neutral salt spray test), generally only 48 hours, which cannot meet the needs of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of production method of metal surface protective agent, it comprises the following steps:

[0015] ⑴ Ingredients: by weight, take 10% to 25% of resin, 10% to 25% of vegetable oil, 45% to 75% of ethyl acetate, 1.8% to 5% of drier, 0.1% to 0.5% of Benzotriazole; present embodiment takes 14% resin, 14% vegetable oil, 70% ethyl acetate, 1.8% drier, 0.2% benzotriazole, the sum of the components is 100%.

[0016] The resin described in this embodiment is phenolic resin, the vegetable oil is tung oil, and the drier is an isooctanoate drier produced by Wuhan Bitus Chemical Materials Co., Ltd.

[0017] (2) Mixing: first mix resin and vegetable oil according to the ratio and heat to 120°C-180°C (160°C in this example), stir to make it melt into a paste; then cool to room temperature, add ethyl acetate, drier , Benzotriazole and stir evenly.

[0018] A metal surface protective agent, based on 100% by weight, 10% to 25% of resin, 10% to 25% of vegetable oil, 45% to 75% of...

Embodiment 2

[0023] In this embodiment, 25% of the resin, 25% of the vegetable oil, 45% of the ethyl acetate, 4.5% of the drier, and 0.5% of the benzotriazole, the sum of the components is 100%.

[0024] The resin is epoxy resin.

[0025] In this embodiment, the coated piece is a brass product, and the concentration of the prepared solution is 0.4g / 100ml to 1g / 100ml (0.6g / 100ml in this example), and the coated piece is sprayed.

[0026] The rest are the same as embodiment 1.

Embodiment 3

[0028] In this embodiment, 10% of the resin, 10% of the vegetable oil, 75% of the ethyl acetate, 4.5% of the drier, and 0.5% of the benzotriazole, the sum of the components is 100%.

[0029] The resin is epoxy resin.

[0030] In this example, the coated piece is an aluminum product, and the concentration of the prepared solution is 0.4g / 100ml to 1g / 100ml (0.8g / 100ml in this example), and the painted piece is applied by brushing.

[0031] The rest are the same as embodiment 1.

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PUM

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Abstract

The invention discloses an environment-friendly metal surface protective agent with high salt fog resistance and a production method. The metal surface protective agent is characterized by being prepared by the steps of: weighing 10-25% of resin, 10-25% of vegetable oil, 45-75% of ethyl acetate, 1.8-5% of drying agent and 0.1-0.5% of benzotriazole based on 100% by weight, burdening and mixing. The metal surface protective agent is light-yellow clear solution or colorless clear solution, is nontoxic, odorless, non-volatile and non-deliquescent, and has the film-forming speed not more than 3min. The process is simple; the solvent is free of fluorine and chlorine elements; the product is environment-friendly, can undergo the neutral salt spray test for more than 96h, does not influence the conductivity, insulativity, high-frequency characteristic and weldability of a coated piece, and is suitable for surface treatment of metal products, in particular copper, aluminum, silver, tin and lead metal products.

Description

technical field [0001] The invention relates to a metal surface treatment, in particular to a metal surface protective agent mainly used for copper, aluminum, silver, tin, lead and alloys and a production method. Background technique [0002] After the metal is corroded, its shape, color, electrical properties and mechanical properties will change, which will cause equipment damage, pipeline leakage, product pollution and other accidents. For this purpose, the metal surface needs to be treated. At present, coating or electroplating is generally applied on the metal surface, so as to achieve the effect of protection. However, there are firstly poor adhesion, and secondly, environmental pollution, especially poor salt spray corrosion resistance (neutral salt spray test), generally only 48 hours, which cannot meet the needs of the product. Contents of the invention [0003] The purpose of the present invention is to provide an environmental protection, metal surface protect...

Claims

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Application Information

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IPC IPC(8): C09D161/06C09D163/00C09D191/00C09D5/08C23F11/02
Inventor 史俊才肖超
Owner YIYANG HUAXING MACHINERY TECH
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