Use and preparation of 2-propymyl-2-hydroxyalkyl ether

A hydroxyalkyl ether and propynyl technology, applied in the field of nickel plating intermediates, can solve the problems of high consumption of brightener, poor stability of propargyl alcohol, brittleness of electroplated nickel layer, etc. Fast light effect

Active Publication Date: 2008-12-17
GUANGZHOU HKS SURFACE TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nickel plating intermediate propynyl alcohol is a commonly used brightener component in electroplating nickel. The brightener prepared by using it has better brightness and leveling performance, but the consumption of brightener is relatively large, and because propynyl alcohol Poor stability, easy to decompose, excessive addition will easily make the electroplated nickel layer brittle, reducing the yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of 2-propynyl 2-hydroxyalkyl ether is to add 1 mol of propynyl alcohol and 0.01 mol of sodium hydroxide to a 1000ml pressure-resistant reaction flask, heat it to 50°C in a water bath, and stir to dissolve it completely , then at a pressure of 0.1 MPa N 2 Under the protection, add 1mol of propylene oxide and react at 50°C for 1 hour, then add 1mol of ethylene oxide, react at 70°C for 1.5 hours, and finally control the temperature at 50°C and keep the temperature for 1 hour to obtain the product of the present invention. 2-Propynyl-2-hydroxyalkyl ether. The 2-propynyl-2-hydroxyalkyl ether can be used as nickel plating intermediate in nickel leveling agent and brightener.

Embodiment 2

[0019] The preparation method of 2-propynyl-2-hydroxyalkyl ether, which is to add 5mol of propynyl alcohol and 0.01mol of sodium hydroxide to a 1000ml pressure-resistant reaction flask, heat to 90°C in a water bath, and stir to make it thoroughly melted, then at a pressure of 0.6 MPa N 2 Under protection, add 1 mol of propylene oxide, react at 60 ° C for 1.5 hours, then add 1 mol of ethylene oxide, react at 80 ° C for 1 hour, and finally control the temperature at 90 ° C and keep the temperature for 5 hours to obtain the method described in the present invention. Product 2-propynyl-2-hydroxyalkyl ether. The 2-propynyl-2-hydroxyalkyl ether can be used as nickel plating intermediate in nickel leveling agent and brightener.

Embodiment 3

[0021] The preparation method of 2-propynyl-2-hydroxyalkyl ether is to add 1 mol of propynyl alcohol and 0.03 mol of sodium hydroxide to a 1000ml pressure-resistant reaction flask, heat it to 70°C in a water bath, and stir to make it thoroughly melted, then at a pressure of 0.3 MPa N 2 Under protection, add 5mol of propylene oxide and react at 55°C for 1.2 hours, then add 5mol of ethylene oxide, react at 75°C for 1.3 hours, and control the temperature at 70°C for 3 hours to obtain the product of the present invention. 2-Propynyl-2-hydroxyalkyl ether. The 2-propynyl-2-hydroxyalkyl ether can be used as nickel plating intermediate in nickel leveling agent and brightener.

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PUM

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Abstract

The invention discloses the application of 2-propynyl-2-hydroxyalkyl ether in a nickel leveling agent and a polishing agent as a nickeling intermediate and a preparation method of the 2-propynyl-2-hydroxyalkyl ether nickeling intermediate. An ether compound, the 2-propynyl-2-hydroxyalkyl ether is generated from the addition reaction of propiolic alcohol, propylene epoxide and ethylene epoxide in the invention. Compared with the propiolic alcohol, the chemical stability of the 2-propynyl-2-hydroxyalkyl ether is good and the 2-propynyl-2-hydroxyalkyl ether is not easy to decompose; besides, an electroplating nickel plate is softer and has better brightness and leveling, wide bright scope, quick turning to be bright and high production efficiency if the 2-propynyl-2-hydroxyalkyl ether is used in nickeling liquid, the dosage of the polishing agent is reduced, the consumption of nickel is less and the cost is greatly reduced, thus not only being applicable to ordinary simple work pieces but also can gain satisfactory effects even for complicated work pieces.

Description

technical field [0001] The invention relates to the use of 2-propynyl-2-hydroxyalkyl ether as a nickel-plating intermediate, and a preparation method of the 2-propynyl-2-hydroxyalkyl ether nickel-plating intermediate. It belongs to the field of nickel plating intermediates. Background technique [0002] The nickel-plating intermediate propargyl alcohol is a commonly used brightener component in nickel electroplating. The brightener prepared with it has better brightness and leveling properties, but the consumption of the brightener is large, and because of the propargyl alcohol It has poor stability and is easy to decompose. Excessive addition will easily make the electroplated nickel layer brittle and reduce the yield. SUMMARY OF THE INVENTION [0003] The first object of the present invention is to provide a use of 2-propynyl-2-hydroxyalkyl ether. [0004] The second object of the present invention is to provide a preparation method of 2-propynyl-2-hydroxyalkyl ether. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/16C07C43/178C07C41/03
Inventor 蔡志华
Owner GUANGZHOU HKS SURFACE TREATMENT CO LTD
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