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Acidic zinc-plated carrier and a preparation method and application thereof

A technology of acid galvanizing and carrier, which is applied in the field of acid galvanizing carrier and its preparation, which can solve the problems of losing the solubilization and uniform dispersion of the main brightener, difficulty in balancing the brightness of the coating, and deterioration of the performance of the plating solution, etc., to achieve broadening of the brightness The effect of current density range, strong walking ability, increasing coverage ability and fullness

Inactive Publication Date: 2017-01-18
WUHAN OXIRAN SPECIALTY CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the carrier brighteners currently on the market are nonionic surfactants of fatty alcohol polyoxyethylene ethers, alkylphenol polyoxyethylene ethers, or anionic surfactants, which are generally characterized by low cloud point, high foam, and very Difficult to balance the brightness of the high, medium and low areas of the coating
In general industrial production, the salt content of the plating solution is relatively high. When the working temperature is too high and exceeds the cloud point of the carrier brightener, the carrier brightener will lose its solubilization and uniform dispersion of the main brightener, and it will separate out by itself. performance degradation of

Method used

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  • Acidic zinc-plated carrier and a preparation method and application thereof
  • Acidic zinc-plated carrier and a preparation method and application thereof
  • Acidic zinc-plated carrier and a preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Add antioxidants and maleic anhydride to the compound polyether at a temperature of 88°C, and keep warm for 5.0 hours to obtain the maleic acid monoester of the compound polyether, further add a sulfonating agent, Under sulfonation for 2.0h, an acidic galvanized carrier was obtained.

[0031] In this example: according to the number of parts by mass, the naphthol block polyether OX-625 in the compound polyether is 37.2 parts, the isomeric fatty alcohol polyoxyethylene ether 1307 is 18.7 parts, the straight chain fatty alcohol polyoxyethylene ether AEO-15 is 20.6 parts, alkylphenol polyoxyethylene ether NP-15 is 23.5 parts; antioxidant is 0.1 part of 2,6-di-tert-butyl-4-methylphenol and 0.5 part of sodium hypophosphite; The sulfonating agent is an aqueous solution of sodium sulfite; the input amounts of compounded polyether, maleic anhydride, and sulfonating agent are: 77.5 parts, 12.8 parts, and 9.7 parts, respectively.

Embodiment 2

[0033] Add antioxidants and maleic anhydride to the compound polyether at a temperature of 95°C, and keep warm for 3.5 hours to obtain the maleic acid monoester of the compound polyether, further add a sulfonating agent, Under sulfonation for 2.0h, an acidic galvanized carrier was obtained.

[0034] In this example: in terms of parts by mass, 42.5 parts of naphthol block polyether OX-625 in the compounded polyether, 15.7 parts of isomeric fatty alcohol polyoxyethylene ether JFC-15, 15.7 parts of straight-chain fatty alcohol polyoxyethylene Vinyl ether AEO-12 is 17.0 parts, alkylphenol polyoxyethylene ether NP-21 is 24.8 parts; antioxidant is 0.3 part of dimethyl ketoxime and 0.5 part of sodium hypophosphite; sulfonating agent is sodium sulfite aqueous solution; The input amounts of compounded polyether, maleic anhydride, and sulfonating agent are respectively: 69.3 parts, 13.4 parts, and 17.3 parts.

Embodiment 3

[0036] Add antioxidants and maleic anhydride to the compound polyether at a temperature of 73°C, and keep warm for 4.0 hours to obtain the maleic acid monoester of the compound polyether, further add a sulfonating agent, Under sulfonation for 1.0h, an acidic galvanized carrier was obtained.

[0037] In this example: according to the number of parts by mass, the naphthol block polyether OX-625 in the compound polyether is 29.8 parts, the isomeric fatty alcohol polyoxyethylene ether 1307 is 20.4 parts, and the straight chain fatty alcohol polyoxyethylene ether is 20.4 parts. AEO-12 is 25.6 parts, alkylphenol polyoxyethylene ether NP-21 is 24.2 parts; antioxidant is 0.3 parts of 2,6-di-tert-butyl-4-methylphenol and 0.3 parts of dimethyl ketoxime The sulfonating agent is an aqueous solution of sodium metabisulfite; the input amounts of compound polyether, maleic anhydride, and sulfonating agent are respectively: 72.9 parts, 16.7 parts, and 10.4 parts.

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Abstract

The invention discloses an acidic zinc-plated carrier and a preparation method and application thereof. The preparation method of the acidic zinc-plated carrier includes the following steps that an antioxidant and maleic anhydride are added to compound polyether under the temperature condition of 72-98 DEG C, heat preservation and esterification are performed for 2.5-5.5 hours to obtain maleic monoester of the compound polyether, and sulfonation is performed under the temperature condition of 68-85 DEG C to obtain the acidic zinc-plated carrier. The naphthol blocked polyether with a special structure is used as a main raw material and is supplemented with isomeric alcohol ethoxylates, linear alcohol ethoxylates and alkylphenol ethoxylates, and the obtained acidic zinc-plated carrier is free-cloud-point and low-foam and has strong blocking capability.

Description

technical field [0001] The invention relates to the technical field of acid galvanizing, in particular to an acid galvanizing carrier and its preparation method and application. Background technique [0002] Acid galvanizing is a bright galvanizing process developed in the 1980s. In the past 20 years, it has developed rapidly both at home and abroad. Compared with other types of galvanizing, acid galvanizing has significant advantages, such as: low tank pressure, high current efficiency (more than 95 parts), fast deposition speed; single-salt plating solution without complexing agent, easy to treat wastewater; The brightness and leveling property of the product are superior to other plating solution systems, and steel materials with low hydrogen overpotential, such as high carbon steel, castings, forgings, etc., are easy to be plated. Therefore, acid galvanizing is widely used in our country, and the dosage is very large. [0003] The key to the chloride galvanizing proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/22
CPCC25D3/22
Inventor 潘琦付远波任凡张静付艳梅余洁王亮
Owner WUHAN OXIRAN SPECIALTY CHEM CO
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