Palmitoleic amide type water-based gas-phase antirust concentrate and preparation and use methods thereof

A palm oleic acid amide type and palm oleic acid amide technology are applied in the palm oleic acid amide water-based vapor phase anti-rust concentrate and its anti-rust application field, which can solve the surface defects of precision metal products of metal products, affect the surface quality and Accuracy, no gas phase anti-rust performance and other problems, to achieve the effects of excellent contact anti-rust ability, easy cleaning and easy operation

Inactive Publication Date: 2020-05-29
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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  • Palmitoleic amide type water-based gas-phase antirust concentrate and preparation and use methods thereof
  • Palmitoleic amide type water-based gas-phase antirust concentrate and preparation and use methods thereof

Examples

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preparation example Construction

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

[0026] Accurately weigh 30 grams of purified palmitoleic 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 then slowly add maleic anhydride in batches under stirring conditions 12 grams to ensure that there is no white mist overflowing from the reaction bottle mouth, raise the temperature to 150°C, and keep it warm for 4 hours; lower the temperature of the reaction solution to 140±5°C, slowly add 17.1 grams of diethanolamine, 1.5 grams of KOH, and 17.1 grams of diethanolamine , raised the temperature to 170°C for 3 hours, slowly added 3.8 grams of diethanolamine for amination reaction for 0.5 hours, naturally cooled to below 100°C, added 28 grams of deionized water, and obtained palmitoleic acid amide compound rust inhibitor 1.

[0027] Accurately weigh 28 grams of purified palmitoleic acid and add it to a four-necked ...

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 dissolve, then add palmitoleic acid amide compound antirust agent, hexamethylenetetramine, benzoic acid monoethanolamine to make it completely dissolve according to the ratio, and then add amino acid triazine antirust according to the ratio agent, vapor 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 mix according to the stated ratio Add metal complexing agent, defoamer, and film-forming agent in sequence, continue to stir for 30 minutes, and cool down to room temperat...

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Abstract

The invention discloses palmitoleic amide type water-based gas-phase antirust concentrate. The palmitoleic amide type water-based gas-phase antirust concentrate is prepared from the following raw material of: an palmitoleic amide compound antirust agent, a gas-phase corrosion inhibitor, an amino acid-based triazine antirust agent, nitrobenzoate alcohol amine salt, hexamethylenetetramine, monoethanolamine benzoate, a special water-based antirust agent, a metal complexing agent, a defoaming agent and a film-forming agent. According to the palmitoleic amide type water-based gas-phase antirust concentrate, water is used as a carrier, and the green and environment-friendly palmitoleic amide compound antirust agent is a main antirust agent, the antirust concentrate is free of nitrite and other toxic and harmful components to the human body and the environment, and has excellent performance in contact rust prevention, gas phase rust prevention, lubrication, infiltration and chemical adsorption, the antirust concentrate can prevent rust for high precision metal products without damaging the surfaces of the high-precision metal products, and the antirust concentrate facilitates water cleaning, energy-saving and environment-friendly, and can meet the requirements of short-term rust prevention between processes and long-term rust prevention of packaging and sealing of common steel and various non-ferrous metal devices and products .

Description

Technical field: [0001] The invention relates to a palm oleic acid amide-type water-based gas-phase antirust concentrate and its antirust application field, in particular to a palm oleic acid amide water-based gas-phase antirust concentrate and a preparation and use method thereof. 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 unseali...

Claims

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Application Information

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