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Acidproof metal surface silane treatment agent and preparation method thereof

A silane treatment agent, metal surface technology, used in anti-corrosion coatings, coatings, etc., can solve the problems of weak adhesion, uneven density, and voids of metal bodies, and achieve improved film quality, short processing time, enhanced The effect of stability

Inactive Publication Date: 2013-08-21
MAANSHAN TUORUI METAL SURFACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the maturity of the metal surface treatment process, the traditional phosphate conversion and chromate passivation surface treatment technology is gradually replaced by the environmental protection and energy-saving silanization treatment technology due to factors such as environmental pollution and easy harm to the human body. However, the current silane Most of the chemical treatment is simply relying on the film-forming properties of silane, so that the film layer formed on the surface of the metal workpiece treated with the silane solution has uneven density, voids, cracks, and weak adhesion to the metal body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An acid-resistant metal surface silane treatment agent, which is a mixed solution prepared from the following components, and the parts by weight (grams) of each component in every liter of mixed solution are:

[0018] 3-Glycidyl etheroxypropyl trimethoxysilane 30, aminopropyl triethoxysilane 30, diethanolamine 3, sodium tripolyphosphate 5, N-methylpyrrolidone 2, glycerol 10, tetrafluoride Zirconium 0.4, film-forming aid 4, and the rest is water;

[0019] Described film-forming aid is made up of the raw material of following weight part:

[0020] 1,2-bis(triethoxysilyl)ethane 6, diethylene glycol monobutyl ether 5, acrylic acid 6, sodium metasilicate 2, alum 2, water 20;

[0021] Add the above 1,2-bis(triethoxysilyl)ethane into water, stir and heat to 80°C, add acrylic acid and sodium metasilicate, stir for 40 minutes, raise the temperature to 100°C, add di Ethylene glycol monobutyl ether and alum were stirred and reacted for 20 minutes, and kept for 2 hours at heat p...

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Abstract

The invention discloses an acidproof metal surface silane treatment agent, which is a mixed solution. Per liter of the mixed solution is composed of the following components by weight (g): 20-30 of 3-glycidyl ether oxypropyl trimethoxysilane, 20-30 of aminopropyl triethoxysilane, 2-3 of diethanolamine, 4-5 of sodium tripolyphosphate, 1-2 of N-methyl pyrrolidone, 8-10 of glycerol, 0.2-0.4 of zirconium tetrafluoride, 2-4 of a film forming aid, and the balance water. The treatment process of the acidproof metal surface silane treatment agent produced in the invention generates no dreg, the treatment time is short, and the treatment process is easy to control. Being free of harmful heavy metal ions, the acidproof metal surface silane treatment agent is safe and environment-friendly, and can form a silane coating having excellent corrosion resistance with a metal surface, thus prolonging the service life of the metal.

Description

technical field [0001] The invention mainly relates to a treatment agent, in particular to an acid-resistant metal surface silane treatment agent. Background technique [0002] With the maturity of the metal surface treatment process, the traditional phosphate conversion and chromate passivation surface treatment technology is gradually replaced by the environmental protection and energy-saving silanization treatment technology due to factors such as environmental pollution and easy harm to the human body. However, the current silane Chemical treatment mostly simply relies on the film-forming performance of silane, so that the film layer formed on the surface of the metal workpiece treated with silane solution has uneven density, voids, cracks, and weak adhesion to the metal body. Contents of the invention [0003] The purpose of the present invention is to provide an acid-resistant metal surface silane treatment agent and a preparation method thereof in order to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D183/08C09D7/12C09D5/08
Inventor 芮明功
Owner MAANSHAN TUORUI METAL SURFACE TECH
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