Use and preparation of 4-hydroxy-2-butynyl-2-hydroxyalkyl ether

A technology of hydroxyalkyl ether and butynyl, which is applied in the field of preparation of 4-hydroxy-2-butynyl-2-hydroxyalkyl ether nickel plating intermediate, which can solve unsatisfactory leveling and lower yield , poor stability and other problems, to achieve the effect of wide light range, fast light speed, and not easy to decompose

Active Publication Date: 2008-12-17
湖南领湃达志科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor stability of 1,4-butynediol, it is easy to decompose, and excessive addition will easi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of 4-hydroxyl-2-butynyl-2-hydroxyalkyl ether, it is in the pressure-resistant reaction flask of 1000ml, adds 1,4-butynediol 1mol, sodium hydroxide 0.01mol, water bath adds Warm to 50°C, stir to make it completely melted, and then in N with a pressure of 0.1 MPa 2 Add 1mol of propylene oxide under protection, react at 50°C for 1 hour, then add 1mol of ethylene oxide, react at 70°C for 1.5 hours, finally control the temperature at 50°C, and keep it warm for 1 hour to obtain the The product 4-hydroxy-2-butynyl-2-hydroxyalkyl ether. This product can be used as nickel plating intermediate in nickel leveler and brightener.

Embodiment 2

[0020] The preparation method of 4-hydroxyl-2-butynyl-2-hydroxyalkyl ether, it is in the pressure-resistant reaction flask of 1000ml, adds 1,4-butynediol 5mol, sodium hydroxide 0.01mol, water bath adds Warm to 90°C, stir to make it completely melted, and then in N with a pressure of 0.6 MPa 2 Add 1mol of propylene oxide under protection, react at 60°C for 1.5 hours, then add 1mol of ethylene oxide, react at 80°C for 1 hour, finally control the temperature at 90°C, and keep it warm for 5 hours to obtain the The product 4-hydroxy-2-butynyl-2-hydroxyalkyl ether. This product can be used as nickel plating intermediate in nickel leveler and brightener.

Embodiment 3

[0022] The preparation method of 4-hydroxyl-2-butynyl-2-hydroxyalkyl ether, it is in the pressure-resistant reaction flask of 1000ml, adds 1,4-butynediol 1mol, sodium hydroxide 0.03mol, water bath adds Warm to 70°C, stir to make it completely melted, and then under the pressure of 0.3 MPa N 2 Under protection, add 5 mol of propylene oxide and react at 55°C for 1.2 hours, then add 5 mol of ethylene oxide, react at 75°C for 1.3 hours, finally control the temperature at 70°C and keep it warm for 3 hours to obtain the product of the present invention 4-Hydroxy-2-butynyl-2-hydroxyalkyl ether. This product can be used as nickel plating intermediate in nickel leveler and brightener.

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PUM

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Abstract

The invention discloses applications of 4-hydroxy-2-butynyl-2-hydroxyalkyl-ether that is used as a nickelling intermediate compound in a nickel leveling agent and a brightening agent. The invention further discloses a preparation method of the nickelling intermediate compound of the 4-hydroxy-2-butynyl-2-hydroxyalkyl-ether, and the ether compound 4-hydroxy-2-butynyl-2-hydroxyalkyl-ether is produced by implementing the addition reaction of 1, 4-butynediol, propylene oxide and epoxy ethane. Compared with the 1, 4-butynediol, the 4-hydroxy-2-butynyl-2-hydroxyalkyl-ether is good in chemical stability and not easy to be decomposed, leads electronickelling layers in nickelling fluids to be softer, brighter and smoother, and has wide brightness range, quick brightening speed, high production efficiency and less nickel consumption; furthermore, the 4-hydroxy-2-butynyl-2-hydroxyalkyl-ether not only is applicable to generically simple workpiece but also can achieve satisfactory effects in complex workpiece.

Description

technical field [0001] The invention relates to the use of 4-hydroxy-2-butynyl-2-hydroxyalkyl ether as a nickel plating intermediate and the preparation of 4-hydroxy-2-butynyl-2-hydroxyalkyl ether nickel plating intermediate method. It belongs to the field of nickel plating intermediates. Background technique [0002] Nickel plating intermediate 1,4-butynediol is a common brightener component in nickel plating. The brightener prepared with it has good brightness, less nickel consumption and lower cost. However, because 1,4-butynediol has poor stability and is easy to decompose, excessive addition will easily cause brittleness of the electroplated nickel layer, and the leveling property is not ideal, which reduces the yield. Contents of the invention [0003] The first object of the present invention is to provide a use of 4-hydroxy-2-butynyl-2-hydroxyalkyl ether. [0004] The second object of the present invention is to provide a preparation method of 4-hydroxy-2-butyny...

Claims

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Application Information

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IPC IPC(8): C25D3/16C07C43/178C07C41/03
Inventor 蔡志华
Owner 湖南领湃达志科技股份有限公司
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