Galvanized sheet cleaning agent and preparation method thereof

Abstract

The invention relates to a galvanized sheet cleaning agent which is prepared from the following components in parts by weight: 2-8 parts of tetrasodium ethylene diamine tetraacetate, 1-5 parts of sodium potassium tartrate tetrahydrate, 1-5 parts of polyepoxysuccinic acid, 1-5 parts of sodium methylene dinaphthalene sulfonate, 1-3 parts of coconut oil polyoxyethylene ether methyl ammonium chloride, 2-7 parts of decanol polyoxyethylene ether and 0.5-5 parts of isooctanol polyoxyethylene polyoxypropylene ether. 1-3 parts of a styrene-acrylic acid copolymer, 1-3 parts of isohexylene glycol, 0.5-2 parts of an antirust agent, 1-3 parts of triethanolamine and 65-75 parts of deionized water. Compared with a galvanized sheet cleaning agent in the prior art, the galvanized sheet cleaning agent has the advantages of excellent oil removal and dust removal effects, high cleaning efficiency and antirust function, and the pH value of the galvanized sheet cleaning agent is within 10, so that the galvanized sheet cleaning agent does not corrode a coating during use, does not contain phosphorus and alkylphenol polyoxyethylene ether, meets the environmental protection requirement, and has a very good application prospect.

Description

technical field [0001] The invention relates to a galvanized sheet cleaning agent and a preparation method thereof, belonging to the technical field of industrial cleaning. Background technique [0002] With the development of industrialization in our country, the problem of steel anticorrosion has attracted more and more attention. Especially for thin steel plates, the production process is complicated, the processing technology is difficult, the production cost is high, and the value is high, and it is mostly used in high-tech fields and industries such as automobiles and home appliances. However, due to the thin steel plate, it is easy to suffer atmospheric corrosion and be scrapped. For a long time, people have created many effective measures to prevent steel corrosion, and hot-dip galvanizing is one of the effective anti-corrosion methods. Due to the advantages of low production cost, easy method, cathodic protection, firm coating and beautiful appearance, hot-dip galv...

AI Technical Summary

Problems solved by technology

[0005] 1. The rate of degreasing and ash removal should be high. If the oil and ash are not cleaned thoroughly, the residue will directly affect the bonding force between the coating and the workpiece substrate in the subsequent coating process, reducing the yield of the finished product

[0006] 2. It cannot affect the coating. Conventional commercially available galvanized sheet degreasing agents often contain alkali solutions with high alkalinity such as soda ash and caustic soda. layer corrosion, but the addition of corrosion inhibitors can easily affect the degreasing rate, so it is necessary to balance the degreasing rate and the strength of corrosion inhibition, and it is not easy to find a balance point

Although the cleaning agent does not corrode the galvanized layer and has high degreasing efficiency, it has a poor cleaning effect on the surface of the galvanized parts due to the metal hanging dust deposited on the surface of the galvanized parts during processing and transportation, and the cleaning speed is relatively slow

In addition, the cleaning agent has no anti-rust effect on the fracture position of galvanized parts. When cleaning some processed galvanized parts, it is easy to rust at the fracture position

Images