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Degreasing agent and preparation method thereof

A technology of degreasing agent and complexing agent, applied in the field of degreasing agent and its preparation, can solve the problems of low corrosiveness and high corrosiveness of non-metal degreasing agent, and achieve the effect of strong corrosion resistance and prolonging life.

Active Publication Date: 2016-04-06
BYD CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a less corrosive degreasing agent and a preparation method thereof in order to solve the technical problem of high corrosiveness of the existing non-metallic degreasing agent

Method used

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Examples

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preparation example Construction

[0015] The invention also provides a preparation method of the degreasing agent, which comprises dissolving a complexing agent in an emulsifier; the complexing agent includes salicylaldehyde and / or 8-hydroxyquinoline.

[0016] According to the preparation method provided by the present invention, preferably, the complexing agent includes salicylaldehyde and 8-hydroxyquinoline, and the mass ratio of salicylaldehyde and 8-hydroxyquinoline is 1:0.01-0.1.

[0017] According to the preparation method provided by the present invention, preferably, the emulsifier includes ethanol and trichlorethylene, and the mass ratio of the ethanol to the trichlorethylene is 1:1-5.

[0018] According to the preparation method provided by the present invention, preferably, the step of adding acetone to the emulsifier is also included.

[0019] According to the preparation method provided by the present invention, preferably, in the degreasing agent, the content of the ethanol is 10-50g / L, the conte...

Embodiment 1

[0023] Degreaser A1: ethanol 20g / L, trichlorethylene 20g / L, salicylaldehyde 5g / L, 8-hydroxyquinoline 0.2g / L, acetone 2g / L.

Embodiment 2

[0025] Degreaser A2: ethanol 40g / L, trichlorethylene 20g / L, salicylaldehyde 15g / L, 8-hydroxyquinoline 0.8g / L, acetone 8g / L.

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Abstract

The present invention provides a degreasing agent and a preparation method thereof, wherein the degreasing comprises an emulsifier and a complexing agent, and the complexing agent comprises salicylaldehyde and / or 8-hydroxy quinoline. The degreasing agent of the present invention has an excellent degreasing effect, and excellently protects metals in degreasing liquids.

Description

technical field [0001] The invention belongs to the field of surface treatment, in particular to a degreasing agent and a preparation method thereof. Background technique [0002] Metals often go through many processes before electroplating. During these processes, they are inevitably polluted by various types of grease, mineral oil, fibers, sand, dust, and operators' hands. Sweat, fingerprints, etc. These dirt will cause poor adhesion of the electroplating layer, often peeling, blistering, blooming and so on. At the same time, it will also affect the intrinsic quality of the coating, such as the increase of brittleness, pinholes, cracks, etc., which will reduce the corrosion resistance of the coating. [0003] Therefore, cleaning and degreasing processes are often used in the process of metal production and processing. Various metal degreasers that are often used at present mainly include strong acids, strong alkalis and surfactants. General alkaline and acidic degreasi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/032C23G5/036
Inventor 韦家亮
Owner BYD CO LTD
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