Water-based electroplating antirust agent and preparation method thereof

Abstract

The invention discloses a water-based electroplating antirust agent. The water-based electroplating antirust agent is characterized by being prepared from the following raw materials in part by weight: 0.5-1 part of amino silicon oil, 2-4 parts of sodium carboxymethyl starch, 0.5-1 part of ethylmaltol, 1-2 parts of polyethylene glycol monolaurate, 6-8parts of a modifying additive, 0.2-0.4 part of L-cysteine, 4-6 parts of water-based wax emulsion, 1-2 parts of octenylsuccinate starch, 0.3-0.5 part of lauramidopropyl hydroxyl sulphobetaine, 0.3-0.5 part of pentaerythritol oleate, 1-2 parts of sodium thiosulfate, 0.1-0.2 part of disodium etidronate and 30-40 parts of water. A film layer formed by the water-based electroplating antirust agent on the surface of metal has very strong corrosion-resistant, discoloration-resistant, anti-static, rust-proof and salt fog-resistant capabilities, is nonflammable, environment-friendly and nontoxic; the water-based electroplating antirust agent is convenient to use and easy to operate; a processed workpiece is good in gloss.

Description

technical field [0001] The invention relates to the field of metal treatment, in particular to a water-based electroplating antirust agent and a preparation method thereof. Background technique [0002] Metal workpieces are prone to rust during production, processing and transportation. Once rusted, it will have a negative impact on the appearance and performance of the finished product. Serious corrosion may even cause the steel to be scrapped. The rusting of steel has caused huge losses to the national economy, so it is necessary to use rust inhibitors to protect metals. Rust inhibitors work by preventing the metal from rusting by forming a thin film on the metal surface. Most of the commonly used antirust agents are oily, and a large amount of organic solvents are used in the process of production and use, causing pollution to the environment. Therefore, the research on water-based antirust agents is of great significance. [0003] Most of the traditional metal water-ba...

AI Technical Summary

Problems solved by technology

Most of the commonly used antirust agents are oily, and a large amount of organic solvents are used in the process of production and use, causing pollution to the environment. Therefore, the research on water-based antirust agents is of great significance

[0003] Most of the traditional metal water-based rust inhibitors contain nitrite, which has the advantages of low price, good effect, convenient use, and easy removal. However, because nitrite can be converted into carcinogens, its use and discharge have been strictly controlled. limit