Metal finishing agent using silane coupling agent as main component for metal surface pretreatment

A technology of metal surface treatment and silane coupling agent, applied in the field of metal surface treatment agent, can solve the problems of unreported, difficult to play a role or effect, etc., and achieve the effect of wide source of raw materials, low price and simple operation

Inactive Publication Date: 2008-09-03
合肥华清金属表面处理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can also be seen from the above mechanism of action that when there is no hydroxyl group on the metal surface, it is difficult to exert the corresponding function or effect.
[0008] In recent years, domestic and foreign researches on alternative phosphating processes have been very active, but they are mainly focused on environmentally friendly and non-toxic phosphating formulas and processes. The mature industrial application of silane coupling agents as the main film-forming agent to replace traditional phosphating processes has not yet been established. see the report

Method used

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  • Metal finishing agent using silane coupling agent as main component for metal surface pretreatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The metal surface treatment agent mainly composed of silane coupling agent used for metal surface pretreatment is composed of the following raw materials:

[0042] 1,2-diethoxysilicate ethane (BTSE) 20 grams

[0043] γ-Aminopropylsilane (γ-APS) 50g

[0044] Water-dispersible silica 298g

[0045] Zirconium fluoride 1 g

[0046] Titanium fluoride 1 g

[0047] Acetic acid 0.5 g

[0048] Water 928 grams.

[0049] The preparation method of the metal surface treatment agent mainly composed of a silane coupling agent for metal surface pretreatment comprises the following steps:

[0050] (1) Weigh 20 g of 1,2-diethoxysilyl ethane (BTSE) and add it to 630 g of water, stir it fully and add 50 g of γ-aminopropylsilane (γ-APS) to it after it is completely dissolved. After fully stirring, semi-finished products are obtained;

[0051] (2) Weigh 1g of water-dispersible silicon dioxide and add it to 298g of water, stir fully until it is completely dissolved, then add 1g of zirco...

Embodiment 2

[0054] The metal surface treatment agent mainly composed of silane coupling agent used for metal surface pretreatment is composed of the following raw materials:

[0055] 1,2-diethoxysilyl ethane (BTSE) 25 grams

[0056] γ-Aminopropylsilane (γ-APS) 45g

[0057] Water-dispersible silica 290g

[0058] Zirconium fluoride 5 g

[0059] Titanium fluoride 1 g

[0060] Acetic acid 0.5 g

[0061] Water 928 grams.

[0062] The preparation method comprises the following steps:

[0063] (1) Weigh 25 g of 1,2-diethoxysilyl ethane (BTSE) and add it to 630 g of water, stir it fully and then add 45 g of γ-aminopropylsilane (γ-APS) to it after it is completely dissolved. After fully stirring, semi-finished products are obtained;

[0064] (2) Weigh 5g of water-dispersible silicon dioxide and add it to 290g of water, stir fully until it is completely dissolved, then add 5g of zirconium fluoride and 1g of titanium fluoride to it and then fully stir to prepare a semi-finished product for us...

Embodiment 3

[0067] The metal surface treatment agent mainly composed of silane coupling agent used for metal surface pretreatment is composed of the following raw materials:

[0068] 1,2-diethoxysilicate ethane (BTSE) 20 grams

[0069] γ-Aminopropylsilane (γ-APS) 50g

[0070] Water-dispersible silica 298g

[0071] Zirconium fluoride 3 g

[0072] Acetic acid 0.5 g

[0073] Water 928 grams.

[0074] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a metal surface treatment agent for metal surface pretreatment, in which silane coupling agent is the main composition. The treatment agent comprises the following raw materials: 1, 2- diethoxy estersil ethane (BTSE), gamma- aminopropyl silane (gamma-APS), water dispersible silicon dioxide, fluorine compound, acetic acid and water. On the basis of silane coupling agent film forming mechanism, by selecting and remixing the main composites silane: coupling agent (SA), surface conditioner and auxiliary film forming agent, a metal surface parkerizing substitute with silicon coupling agent as the main film forming agent is researched. The invention has the characteristics of innocuity, harmlessness, non-pollution, low-temperatrue fast processing, operation simplicity, wide material resource, low price, production clearness, etc.

Description

technical field [0001] The invention relates to a metal surface treatment agent mainly composed of a silane coupling agent for preventing metal corrosion and improving adhesion between metal and paint, which is suitable for various industrial fields using metal products, such as household appliances, Automobile manufacturing, electric power equipment, etc. Background technique [0002] Corrosion of metal materials occurs around us every moment. According to statistics, about 10% of metal materials cannot be recovered every year due to corrosion, which not only causes a huge waste of metal resources, but also poses a serious threat to normal production and personal safety. Surface treatment of metal materials is a commonly used anti-corrosion method. At present, the main method used for pre-treatment of metal coating is phosphating. However, the traditional metal surface treatment methods have problems such as pollution to the environment due to the presence of toxic and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/06
Inventor 刘万青饶丹
Owner 合肥华清金属表面处理有限责任公司
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