Deep eutectic solvent type hot galvanizing additive and preparation method and application thereof

A deep eutectic solvent, hot-dip galvanizing technology, applied in hot-dip plating process, coating, metal material coating process, etc. Different, ignoring economic, environmental protection and other issues, to achieve the effect of shortening drying time, promoting sustainable development and low price

Active Publication Date: 2021-07-09
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese invention patent applications CN1036411A (named: water-soluble fluxing agent for hot-dip aluminum plating), CN1356404A (named: water-soluble flux for hot-dip galvanized aluminum alloys on steel materials) Flux), CN101126142A (name: additives for hot-dip galvanizing flux), etc. all propose improvements to the flux, which strengthens the flux effect, but ignores problems such as economy and environmental protection, and the safety cannot be obtained effectively. Assure
[0005]Deep eutectic solvent is two or more different hydrogen bond acceptors and hydrogen bond donors, which are mixed at a certain molar ratio at a certain temperature to form a uniform Transparent liquid is widely considered as a new analogue of ionic liquid, but in fact, the chemical characteristics of deep eutectic solvent and ionic liquid are obviously different, and there is no report on the application of deep eutectic solvent in the field of hot-dip galvanizing

Method used

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  • Deep eutectic solvent type hot galvanizing additive and preparation method and application thereof
  • Deep eutectic solvent type hot galvanizing additive and preparation method and application thereof
  • Deep eutectic solvent type hot galvanizing additive and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-28

[0056] Embodiment 1-28 Preparation method of deep eutectic solvent-based hot-dip galvanizing additive

[0057] Examples 1-28 are respectively a preparation method of deep eutectic solvent-based hot-dip galvanizing additives. They are deep eutectic solvents, non- Heat the ionic surfactant, inorganic salt and deionized water to 40-70°C, mix well, and let it stand for 9-12 hours to obtain the corresponding deep eutectic solvent hot-dip galvanizing additives, which are marked as J1-J28 in sequence;

[0058] Among them, the deep eutectic solvent is prepared by mixing hydrogen bond donors and hydrogen bond acceptors with a molar ratio of 1-2:1 (see Table 1-2 for the structure and label code); the structure and label of nonionic surfactants The code is shown in Table 3;

[0059] The preparation methods of Examples 1-28 are basically the same, the difference lies in the selection of raw materials and the adjustment of other process parameters, see Table 4-7 for details.

[0060] Tab...

Embodiment 29

[0077] Example 29 Application of deep eutectic solvent-based hot-dip galvanizing additives

[0078] 1) Preparation of comparative hot-dip galvanizing additives

[0079] Prepare corresponding comparative hot-dip galvanizing additives CJ1-CJ5 according to the following methods:

[0080] ①Comparative hot-dip galvanizing additive CJ1:

[0081] Prepare plating flux additive according to the method in patent document CN101126142A: get tetradecyl dimethyl benzyl ammonium chloride 6.3kg, isopropanol 1.2kg, alkylphenol polyoxyethylene (12) ether 0.9kg, fluorine zirconium Potassium acid potassium 0.1kg and deionized water 3kg were placed in a reaction vessel with a heating device, kept stirring at 50°C for 2 hours, lowered to room temperature and adjusted to 10 liters with deionized water, and stirred evenly to obtain a comparative heat Galvanizing additive CJ1.

[0082] ②Comparative hot-dip galvanizing additive CJ2:

[0083] According to the choline chloride: ethylene glycol molar ...

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Abstract

The invention belongs to the technical field of plating assistant additives, and discloses a deep eutectic solvent type hot galvanizing additive and a preparation method and application thereof. The deep eutectic solvent type hot galvanizing additive is prepared by heating a deep eutectic solvent, a nonionic surfactant, inorganic salt and deionized water according to the weight ratio of (30-70): (1-20): (3-8): (1-10), mixing the materials uniformly and standing the mixture. The additive is suitable for being directly added into a plating assistant and applied to a hot galvanizing process, molten zinc splashing in the galvanizing process can be effectively prevented, molten zinc loss is reduced, the galvanizing speed is increased, the yield is increased, consumption of ammonium zinc chloride in the plating assistant is reduced, and the carrying amount of iron ions can be remarkably reduced; and the drying time of a plating agent is shortened, the production efficiency is improved, residual oil stains on the surface of a plated part are effectively removed, air is isolated, secondary rusting caused by oxidation is relieved, skip plating is obviously reduced, the molten zinc splashing strength is weakened, the risk of accidents such as scalding is reduced, and meanwhile smoke reduction and environmental protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of plating flux, and relates to a hot-dip galvanizing additive, in particular to a deep eutectic solvent-based hot-dip galvanizing additive and a preparation method and application thereof. Background technique [0002] With the rapid development of the economy, the demand for steel continues to increase. However, in addition to being exposed to the atmosphere, steel products will also be corroded to varying degrees when they are used in environmental conditions such as seawater or soil. In order to ensure normal use and prolong the service life of steel products, the anti-corrosion technology of steel has always been valued by people. Hot-dip galvanizing is one of the most effective means to delay the corrosion of steel materials. Compared with other metal protection methods, the hot-dip galvanizing process will form a double protection of electrochemical and physical barriers on the coating, and the bondin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06
CPCC23C2/06
Inventor 卢宝阳吴荣方谢孝文郅西敬马虎德吴之心赵奇徐景坤
Owner JIANGXI SCI & TECH NORMAL UNIV
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