Long-acting water-based antirust agent and preparation method thereof

Abstract

The invention discloses a long-acting water-based antirust agent. The long-acting water-based antirust agent is characterized in that the long-acting water-based antirust agent is prepared from the following raw materials in parts by weight: 8 to 12 parts of beta-cyclodextrin, 3 to 5 parts of hydroxypropyl methyl cellulose, 2 to 4 parts of rosin, 0.5 to 1 part of methyl salicylate, 1 to 2 parts of xanthan gum, 0.5 to 1 part of sodium lignin sulfonate, 0.5 to 1 part of sodium methylene bis-m-naphthalene sulfonate, 0.5 to 1 part of rosin-polythylene oxide ester, 6 to 8 parts of a performance additive, 0.05 to 0.1 part of carnosic acid, 0.1 to 0.2 part of sodium benzoate, and 40 to 50 parts of water. The antirust agent provided by the invention has the characteristics of safety and environment friendliness, has certain slow-release effect, and can protect metal products for a long time; a formed film is highly stable, and has a certain tolerance for salt-spray environments and hygrothermal environments.

Description

technical field [0001] The invention relates to the field of metal treatment, in particular to a long-acting water-based 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-based...

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