Silane treating agent and method for preparing silane treating agent

A technology of silane treatment agent and silane coupling agent, applied in the direction of metal material coating process, can solve the problems of harsh process conditions, environmental pollution, workpiece rust, etc., achieve good salt spray performance, simple use, and reduce energy consumption Effect

Active Publication Date: 2020-03-17
佛山市顺德区美硕金属表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional metal surface pretreatment adopts phosphate conversion and chromate passivation surface treatment technology. Although good results can be obtained, the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, chromium and nitrite. Carcinogens, such as carcinogens, are very serious for environmental pollution
The existing vitrification process instead of phosphating is relatively environmentally friendly, but there are also disadvantages such as improper operation, easy to rust the workpiece, and demanding process conditions.

Method used

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  • Silane treating agent and method for preparing silane treating agent
  • Silane treating agent and method for preparing silane treating agent
  • Silane treating agent and method for preparing silane treating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The composition and dosage of the silane treatment agent of Example 1 are as follows:

[0047]

[0048] Add 20 parts of ethanol to 300 parts of water, slowly add 45 parts of aminopropyltrimethoxysilane while stirring, stir for about half an hour to completely dissolve, then add 8 parts of glycerin and 2 parts of sodium tricarboxylate successively, and stir After half an hour, add 8 parts of water-based acrylic resin, stir and mix, and add 617 parts of water to obtain the silane treatment agent.

[0049] Application of silane treatment agent: At room temperature, put the iron parts cleaned with oil stains into the silane treatment agent, soak for 1.5 minutes, take it out, and put it into the oven to dry to promote film formation. The drying temperature is 100 degrees.

Embodiment 2

[0051] The composition and dosage of the silane treatment agent of Example 2 are as follows:

[0052]

[0053] Add 18 parts of ethanol to 300 parts of water, slowly add 50 parts of aminopropyltrimethoxysilane while stirring, stir for about half an hour to completely dissolve, then add 10 parts of glycerin and 3 parts of sodium tricarboxylate in sequence, and stir After half an hour, add 10 parts of water-based acrylic resin, stir and mix, and add 609 parts of water to obtain the silane treatment agent.

[0054] Application of silane treatment agent: At room temperature, put the iron parts cleaned with oil stains into the silane treatment agent, soak for 1.5 minutes, take it out, and put it into the oven to dry to promote film formation. The drying temperature is 100 degrees.

Embodiment 3

[0056] The composition and dosage of the silane treatment agent of Example 3 are as follows:

[0057]

[0058]

[0059] Add 18 parts of ethanol to 300 parts of water, slowly add 45 parts of aminopropyltrimethoxysilane while stirring, stir for about half an hour until it is completely dissolved, then add 10 parts of glycerin and 2 parts of boric acid in sequence, and stir for half an hour. Then add 8 parts of water-based acrylic resin, stir and mix, and add 617 parts of water to obtain the silane treatment agent.

[0060] Application of silane treatment agent: At room temperature, put the iron parts cleaned with oil stains into the silane treatment agent, soak for 1.5 minutes, take it out, and put it into the oven to dry to promote film formation. The drying temperature is 100 degrees.

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PUM

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Abstract

The invention discloses a silicane treating agent and a method for preparing the silicane treating agent. The silicane treating agent comprises the following components of, by weight, 30-65 parts of silicane coupling agents, 10-30 parts of hydrolytic stabilizing agents, 1-20 parts of surface wetting agents, 0.5-8 parts of sealing agents, 1-20 parts of adhesion promoting agents, and the balance water, wherein the total weight parts is 1000, and the silicane coupling agents are amino propyl trimethoxy silicane and / or amino propyl triethoxy silicane. The operation process of the silicane treating agent is simple, a good ceramization effect can be obtained, a metal part processed by the silicane treating agent is excellent in corrosion resistance, and the method can completely replace a traditional phosphate conversion and chromate passivated surface treatment technology.

Description

Technical field [0001] The invention relates to the technical field of metal anticorrosion, in particular to a silane treatment agent and a method for preparing the silane treatment agent. Background technique [0002] In the metal surface treatment industry, metals need to be pre-treated before painting. The chemical pretreatment method is usually to form a chemical conversion film on the metal surface. On the one hand, the conversion film must have a certain anti-corrosion ability to ensure that the metal does not return rust before spraying. On the other hand, it can also increase the roughness of the metal surface. Enhance the bonding force between the coating and the substrate. [0003] Traditional metal surface pretreatment uses phosphate conversion and chromate passivation surface treatment technology. Although good results can be obtained, the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, and chromium and ni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/05
CPCC23C22/05C23C2222/20
Inventor 翁叶炯文丰正
Owner 佛山市顺德区美硕金属表面技术有限公司
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