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A kind of preparation method of brightener for copper plating

A brightener and copper-plating technology, applied in the preparation of copper-plating brighteners, can solve the problems of low brightness and slow light output, and achieve the effects of increasing dispersibility, increasing brightness, and improving crystal thinning

Active Publication Date: 2021-05-14
江西鹏凯环保工程设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problems of slow light emitting speed and low brightness of current copper-plating brighteners, the present invention provides a preparation method of copper-plating brighteners

Method used

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  • A kind of preparation method of brightener for copper plating

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preparation example Construction

[0031] The preparation method of described catalyst is:

[0032] A. The mixture and ethanol solution were ultrasonically oscillated for 20 minutes according to the mass ratio of 1:5-7, then added acetic acid solution to adjust the pH to 2.0-2.5, left to age for 10 hours, spray-dried, and collected the dry matter;

[0033] B. Ball mill the dried material, collect the ball milled material, put the ball milled material and concentrated sulfuric acid into the reaction kettle according to the mass ratio of 3:6-8 for mixing, then add urea with 10-15% of the ball-milled material, and use nitrogen protection, Stir and react at 125-130°C for 20h;

[0034] C. After the stirring reaction is completed, use sodium hydroxide solution to adjust the pH to 8.0, add auxiliary materials with a mass of 10% to 15% of the ball-milled material, stir, discharge, freeze-dry, and freeze-dried material and synergist by mass ratio 2 ~ 5:7 mixed to get the catalyst.

[0035] The initiator is any one of ...

Embodiment 1

[0043] The additive is formed by mixing cardanol and sorbitol at a mass ratio of 9:2.

[0044] The mixture is formed by mixing epichlorohydrin and ethylene oxide solution at a mass ratio of 5:12.

[0045] The additive is a mixture of alanine and tyrosine in a mass ratio of 5:3.

[0046] The mixture is formed by mixing tetrabutyl titanate and titanium tetrachloride in a mass ratio of 7:2.

[0047] The auxiliary material is ammonium bicarbonate.

[0048] The synergist is urea.

[0049] The preparation method of catalyst is:

[0050] A. The mixture and the ethanol solution were ultrasonically oscillated for 20 minutes according to the mass ratio of 1:5, then the acetic acid solution was added to adjust the pH to 2.0, left to age for 10 hours, spray-dried, and the dry matter was collected;

[0051]B. Ball-mill the dry matter, collect the ball-milled matter, put the ball-milled matter and concentrated sulfuric acid into the reaction kettle at a mass ratio of 3:6 for mixing, the...

Embodiment 2

[0062] The additive is formed by mixing cardanol and sorbitol in a mass ratio of 8:2.

[0063] The mixture is formed by mixing epichlorohydrin and ethylene oxide solution at a mass ratio of 4:11.

[0064] The additive is a mixture of alanine and tyrosine in a mass ratio of 4:2.

[0065] The mixture is formed by mixing tetrabutyl titanate and titanium tetrachloride in a mass ratio of 7:3.

[0066] The auxiliary material is ammonium bicarbonate.

[0067] The synergist is urea.

[0068] The preparation method of described catalyst is:

[0069] A. The mixture and ethanol solution were ultrasonically oscillated for 20 minutes at a mass ratio of 1:6, then acetic acid solution was added to adjust the pH to 2.3, left to age for 10 hours, spray-dried, and the dry matter was collected;

[0070] B. Ball-mill the dry matter, collect the ball-milled matter, put the ball-milled matter and concentrated sulfuric acid into the reaction kettle at a mass ratio of 3:7 for mixing, then add ure...

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Abstract

The invention relates to a preparation method of a brightener for copper plating, which belongs to the technical field of additives for copper plating. The present invention at first utilizes sodium hydroxide to activate chitosan, increases its activity, mixes with sorbitol, cardanol again, by utilizing mixture, by mixing, chitosan is cross-linked with epichlorohydrin, improves its activity. Bridging ability, while cardanol is used as raw material, combined with modified chitosan, and then using sulfamic acid, under the action of a catalyst, cardanol anionic active agent is formed, and acrylamide is polymerized to form polymerized acrylamide, and combined in On biomass anions, when in use, the present invention utilizes the product to absorb copper ions, under the action of modified chitosan, promotes the growth of crystal nuclei, and utilizes sodium dodecylbenzenesulfonate to increase the dispersibility, making the crystal nuclei The grain growth rate is lower than the crystal nucleus growth rate, which improves the effect of crystallization and lightening.

Description

technical field [0001] The invention relates to a preparation method of a brightener for copper plating, which belongs to the technical field of additives for copper plating. Background technique [0002] Copper is a metal with a purplish red luster, which has ductility, good electrical conductivity and thermal conductivity. The copper plating is beautiful rose color, the nature of copper is soft, easy to polish, copper plating is often used as nickel plating, tin plating, chrome plating , silver-plated and gold-plated bottom layer to improve the bonding force between the metal of the body and the surface coating; it can reduce the pores of the coating and improve the anti-corrosion performance of the coating; in some cases, copper-plated steel parts can replace copper parts to save copper. For decorative chrome plating, the original copper thin nickel plating is often used to save nickel metal. Copper plating is also used to prevent carburization, nitriding and cyanidation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/38
CPCC25D3/38
Inventor 梁生
Owner 江西鹏凯环保工程设备有限公司
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