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Surface treating agent for anodic aluminium oxide dyeing and preparation method thereof

A surface treatment agent, anodized aluminum technology, applied in the direction of chemical instruments and methods, surface reaction electrolytic coating, organic chemistry, etc., can solve the problems of inability to obtain evenly wetted and clean surfaces, secondary pollution of aluminum materials, and obstruction of full contact, etc. problem, to achieve the effect of stable product quality, low dosage and good reproducibility

Pending Publication Date: 2021-01-05
浙江嘉利盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first process for aluminum to enter the anodizing production line is degreasing. Aluminum uses emulsion, rolling oil or lubricant in the production process, uses necessary grease such as anti-rust oil in the storage of semi-finished products, and uses it in mechanical polishing. Polishing paste, these need to be removed by degreasing; because the surface of the aluminum material is exposed to grease, it will hinder its surface from fully contacting the treatment solution, and a clean surface with uniform wetting cannot be obtained; if the grease is brought into the subsequent treatment solution, it will be Destroy the composition of the solution and cause secondary pollution to aluminum

Method used

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  • Surface treating agent for anodic aluminium oxide dyeing and preparation method thereof
  • Surface treating agent for anodic aluminium oxide dyeing and preparation method thereof
  • Surface treating agent for anodic aluminium oxide dyeing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, the preparation method of cationic silicone gemini surfactant SI-01, the following steps are carried out in sequence:

[0037] 1), the preparation of organic silicon intermediates:

[0038] According to the molar ratio of 3-chloropropyltrichlorosilane and trimethylchlorosilane as 1:6, add 0.04mol of 3-chloropropyltrichlorosilane and 0.24mol of trichlorosilane to the reaction flask equipped with a reflux condenser. Methyl chlorosilane, slowly add (addition time is about 5 minutes) 0.36mol of isopropanol within 5 minutes under stirring at room temperature, then dropwise (dropping time is 5 minutes) 0.36mol of deionized water, and stir at room temperature to react ( Alcoholysis reaction) 6h, separate the upper organic layer after the reaction finishes, and wash to neutrality with deionized water, add the anhydrous Na of 5.0g 2 SO 4 After drying overnight, isopropanol was distilled off under reduced pressure (distilled under a pressure of 3300 Pa) to obtain ...

Embodiment 2-1

[0051] 1), with the step 1) of embodiment 1-1.

[0052] 2), the preparation method of intermediate containing ester group:

[0053] Dimethyl glutarate (as an ester compound) is mixed with 3-dimethylaminopropylamine in a molar ratio of 1:3, and an inert gas (N 2 ) under the protection of 100°C for 12h; after the reaction, carry out the following post-treatment: dry at 100°C for 3h to remove excess raw materials (3-dimethylaminopropylamine is volatilized), and then recrystallize the crude product with acetone to obtain the ester Based intermediate product MO-01.

[0054] The structural formula of MO-01 is:

[0055]

[0056] 3) MO-01 is substituted for MP-01, and the molar weight remains unchanged; the rest is the same as step 3) of Example 1-1.

[0057] The structural formula of the finally obtained cationic silicone gemini surfactant SY-01 is:

[0058]

[0059] At this time n=4.

[0060] 1 H NMR (400MHz, δ, CDC1 3 ):0.07(s,54H,Si-CH 3 ),0.41~0.45(t,4H,Si-CH 2 -),...

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Abstract

The invention discloses a surface treating agent for anodic aluminium oxide dyeing, a core component of the surface treating agent is a cationic organosilicon gemini surfactant, and the structural general formula of the cationic organosilicon gemini surfactant is shown in the specification. The invention also discloses a preparation method of the cationic organosilicon gemini surfactant. A dyed aluminium part with stable quality can be obtained by adopting the surface treating agent.

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to a cationic silicone gemini surfactant used for anodized aluminum dyeing and a preparation method thereof. Background technique [0002] Anodized aluminum dyeing is a very common aluminum surface treatment process. The whole process can protect aluminum and add decorative effects to aluminum coloring. The first process for aluminum to enter the anodizing production line is degreasing. Aluminum uses emulsion, rolling oil or lubricant in the production process, uses necessary grease such as anti-rust oil in the storage of semi-finished products, and uses it in mechanical polishing. Polishing paste, these need to be removed by degreasing; because the surface of the aluminum material is exposed to grease, it will hinder its surface from fully contacting the treatment solution, and a clean surface with uniform wetting cannot be obtained; if the grease is brought into the subsequent treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/08C25D11/16C23G1/12
CPCC07F7/0838C07F7/0874C25D11/16C23G1/125
Inventor 谢文革单建钢王铁军张小洪陈涛江华王茂林
Owner 浙江嘉利盛科技有限公司