Water-based gas-phase antirust concentrated solution and preparing and using methods thereof

A gas-phase anti-rust and concentrated liquid technology, which is applied in the field of water-based gas-phase anti-rust concentrated liquid, can solve the problems of surface defects of metal products and precision metal products, affect the surface quality and precision, and have no gas-phase anti-rust performance, and achieve excellent contact Anti-rust ability, easy to clean, and easy to operate

Inactive Publication Date: 2020-06-23
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are many reports on water-based anti-rust fluids, these products either contain sodium nitrite and chromate, which are harmful to the human body and the environment; or contain organic resins, which are cross-linked by resins to form polymers on the surface of steel substrates. film; or containing base oil, using the emulsification of surfactants to form an oil film on the surface of the steel substrate; or containing inorganic salts (such as alum, silicate, borate, carbonate, sulfate, phosphate, chloride salt ), these inorganic salts are easy to form a chemical oxide film with the steel substrate, and at the same time, the inorganic salts are also easy to precipitate solid grains or white spots on the surface of the steel substrate, and do not have gas phase antirust performance, which can easily cause metal products, especially precision metal products. Defects that affect surface quality and precision

Method used

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  • Water-based gas-phase antirust concentrated solution and preparing and using methods thereof
  • Water-based gas-phase antirust concentrated solution and preparing and using methods thereof

Examples

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preparation example Construction

[0025] Preparation of rosin acid amide compound antirust agent:

[0026] Accurately weigh 28 grams of purified abietic acid and add it to a four-necked flask filled with nitrogen, add 0.05 grams of catalyst PB, heat to 140°C under nitrogen atmosphere, and slowly add 14 grams of maleic anhydride in batches under stirring In order to ensure that there is no white mist overflowing from the mouth of the reaction bottle, the temperature was raised to 190°C, and the temperature was kept for 3 hours; the temperature of the reaction solution was lowered to 150°C, and 18 grams of diethanolamine, 1.5 grams of KOH, and 18 grams of diethanolamine were slowly added in batches, and the temperature was raised to React at 180°C for 3 hours, slowly add 4 grams of diethanolamine for amination reaction for 0.5 hours, naturally cool down to below 100°C, add 25 grams of deionized water, and obtain rosin acid amide compound rust inhibitor 1.

[0027] Accurately weigh 34 grams of purified abietic ac...

Embodiment 1-6

[0029]

[0030]The preparation method of the water-based vapor-phase antirust concentrate listed in the examples in the table above comprises the following steps: adding water accounting for 80% of the total water into the reactor and heating it to 50-60°C; adding nitrobenzene according to the ratio Alcohol amine salt of formic acid to make it completely dissolved, add abietic acid amide compound antirust agent, hexamethylenetetramine, benzoic acid monoethanolamine in sequence according to the proportion to dissolve completely, and then add amino acid triazine antirust agent in sequence according to the proportion , gas-phase corrosion inhibitor, special water-based rust inhibitor, keep the solution at 50-60°C to dissolve it completely; add 20% of the total water, keep the solution at 50-60°C and stir for 2 hours, and then follow the stated ratio Add metal complexing agent, defoamer, and film-forming agent, continue to stir for 30 minutes, and cool down to room temperature t...

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Abstract

The invention discloses a water-based gas-phase antirust concentrated solution which comprises the following component raw materials including a rosin acid amide compound antirust agent, a gas-phase corrosion inhibitor, an amino acid-based triazine antirust agent, nitrobenzoic acid alkanolamine salt, hexamethylenetetramine, benzoic acid monoethanolamine, a special water-based antirust agent, a metal complexing agent, a defoaming agent and a film-forming agent. The water-based gas-phase antirust concentrated solution takes water as a carrier, takes the green and environment-friendly rosin acidamide compound antirust agent as a main antirust agent, does not contain nitrite and other components which are toxic and harmful to human bodies and the environment, has excellent properties in the aspects of contact rust prevention, gas-phase rust prevention, lubrication, infiltration and chemical adsorption, has an antirust effect on high-precision metal products without damaging the surfaces of the high-precision metal products, is convenient to clean with water, is energy-saving and environment-friendly, and can meet the requirements of inter-process short-term rust prevention and packaging and sealing long-term rust prevention of common steel and various nonferrous metal devices and products.

Description

Technical field: [0001] The invention relates to a water-based gas-phase anti-rust concentrate and its anti-rust application field, in particular to a water-based gas-phase anti-rust concentrate and a method for preparing and using the same. Background technique: [0002] Metals are widely used in all aspects of industrial production and human life, and play a pivotal role in technological development and economic construction. However, metal products are prone to rust in the process of processing, production, transportation and storage, which will cause losses to metal products in terms of color, luster, and shape. In severe cases, it will lead to performance damage, resulting in serious accidents and economic losses. Although the traditional anti-rust oil has a good sealing effect, it not only has poor appearance, cumbersome process, time-consuming and troublesome effect after application, but also needs to be cleaned before unsealing, which can easily cause secondary poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/10C23F11/02
CPCC23F11/02C23F11/10
Inventor 詹天荣臧昊李文强林帅
Owner QINGDAO UNIV OF SCI & TECH
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