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Silane treatment agent for metal surface

A silane treatment agent, metal surface technology, applied in the direction of metal material coating process, etc., can solve the problems of inconvenient transportation, storage, lack of concentration characteristics, poor environmental compatibility, etc., to achieve excellent adhesion performance, superior environmental protection performance, and improved performance. Effect

Active Publication Date: 2018-09-28
浙江易渤乐控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of metal surface treatment, although the traditional phosphate conversion and chromate passivation surface treatment technologies can achieve good results, the above two treatment methods have major defects: poor environmental compatibility and high cost of use
[0004] However, the silane treatment agents in the prior art do not have the characteristics of concentration, which leads to their large volume and inconvenient transportation and storage.

Method used

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  • Silane treatment agent for metal surface
  • Silane treatment agent for metal surface
  • Silane treatment agent for metal surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The formula composition of metal surface silane treatment agent: 25 parts of N-(β-aminoethyl-γ-aminopropyl) methyldimethoxysilane, 30 parts of ethyl cellulose, 7 parts of sodium citrate, 15 parts of purified water share.

[0018] Table 1, working fluid technical index of embodiment one

[0019] serial number

project

index

1

technical indicators

Concentrate specific gravity: d=1.15±0.001

2

Exterior

light yellow transparent liquid

3

Groove dosage

Concentrate dosage: (kg / m 3 )0.2kg

4

Bath concentration

Spray PH value: 7.2

5

Processing temperature

room temperature

6

processing time

Spray for 3 seconds

[0020] Table 2, the performance index of the film layer formed on the surface of 08f steel in embodiment one

[0021]

[0022] Table 3, the neutral salt spray resistance test table of the iron parts after the treatment of embodiment one

[0023]

Embodiment 2

[0025] The formula composition of metal surface silane treatment agent: 25 parts of N-(β-aminoethyl-γ-aminopropyl) methyldimethoxysilane, 25 parts of methyl cellulose, 6 parts of sodium citrate, 19 parts of purified water share.

[0026] Table 4, the working fluid technical index of embodiment two metal surface silane treatment agents

[0027]

[0028] Table 5, the performance index of the film layer formed on the surface of 08f steel in embodiment two

[0029]

[0030] Table 6, six performance test tables of the aluminum sample plate after the treatment of embodiment two

[0031]

Embodiment 3

[0033] The formula composition of metal surface silane treatment agent: 27 parts of N-(β-aminoethyl-γ-aminopropyl) methyldimethoxysilane, 20 parts of ethyl cellulose, 7 parts of sodium citrate, 15 parts of purified water share.

[0034] Table 7, the working fluid technical index of embodiment three

[0035] serial number

project

index

1

technical indicators

Concentrate specific gravity: d=1.15±0.001

2

Exterior

light yellow transparent liquid

3

Groove dosage

Concentrate dosage: (kg / m 3 )0.2kg

4

Bath concentration

Spray PH value: 7.3

5

Processing temperature

room temperature

6

processing time

Spray for 4 seconds

[0036] Table 8, the performance index of the film layer formed on the surface of 08f steel in embodiment three

[0037]

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PUM

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Abstract

The invention discloses a metal surface silane treatment agent, which includes 20 to 30 parts by weight of silane coupling agent, 20 to 30 parts of film-forming agent, 5 to 7 parts of complexing agent, and 15 to 30 parts of pure water. The film-forming agent is a thickening agent, and the complexing agent is sodium citrate, which makes the present invention have high aging effect, super concentration, low carbon and energy saving, no residue, no phosphorus, no zinc, no chromium, no fluorine, Zirconium-free and superior environmental performance, the silane film has anti-corrosion properties and excellent adhesion properties.

Description

technical field [0001] The present invention relates to a silane treatment agent, more specifically, it relates to a metal surface silane treatment agent. Background technique [0002] In the field of metal surface treatment, although the traditional phosphate conversion and chromate passivation surface treatment technologies can achieve good results, the above two treatment methods have major defects: poor environmental compatibility and high cost of use. Environmental hazards: phosphating contains zinc, manganese, nickel and other heavy metal ions and a large amount of phosphorus, and nitrite is used as an accelerator in the production and use process, which is a serious carcinogen. Chromium treatment itself contains seriously toxic chromium (Ⅵ). Due to the promulgation of regulations on the danger of heavy metals, chromium (Ⅵ)-containing treatment methods will be banned in many fields (the European Union has completely banned chromium in July 2007. (Ⅵ) Use in metal surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/68
Inventor 夏中选
Owner 浙江易渤乐控股集团有限公司
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