Lauric acid-based hydroxyethyl imidazoline gas-phase antirust fiberboard and preparation method thereof

Abstract

The invention provides a laurate hydroxyethyl imidazoline gas-phase rust-proof fiber board and a preparation method thereof. A compound corrosion inhibitor is prepared through even mixing of the following materials including laurate hydroxyethyl imidazoline, phytic acid, sodium molybdate, sodium borate, polyaspartic acid and silicon dioxide, wherein the mass ratio of the laurate hydroxyethyl imidazoline to the phytic acid to the sodium molybdate to the sodium borate to the polyaspartic acid to the silicon dioxide is (2.8-3.7):(2.5-3.2):(1.2-2.1):(1.3-1.9):(1.3-2.3):(0.8-1.4); the compound corrosion inhibitor is dispersed in deionized water, the pH value is adjusted to be about 8.0-9.0 through ammonium hydroxide, and gas-phase corrosion inhibitor aqueous dispersion with the mass concentration being 5-70% is prepared; and a gas-phase corrosion inhibitor aqueous solution is smeared on the two surfaces of a paper fiber board through a coating machine, drying in air is conduced, and the gas-phase rust-proof fiber board with the loading quantity being about 10-80 g / m<2>. According to the laurate hydroxyethyl imidazoline gas-phase rust-proof fiber board, the size and the thickness can be designed, eliminating is convenient after using; and the compound corrosion inhibitor is free of harmful components such as nitrite, using is convenient and efficient, and environment friendliness and safety are achieved.

Description

Technical field: [0001] The invention relates to the field of a lauric acid-based hydroxyethylimidazoline gas-phase antirust material and packaging products, in particular to a lauric acid-based hydroxyethylimidazoline gas-phase antirust fiberboard and a preparation method thereof. Background technique: [0002] In today's modern era of industrialization, metals and their products can be seen everywhere. However, due to the widespread presence of oxygen in the air, water vapor, acid gases, and salts contained in water vapor, atmospheric corrosion is prone to occur, and a mixture of oxides and hydroxides is formed on the metal surface, thereby impairing their performance and reducing their life. In severe cases, it will cause a major accident or cause the equipment to be scrapped. In particular, metals and their products are more prone to corrosion and rust during sea transportation and high-heat and humid land transportation. According to statistics, the global economic lo...

AI Technical Summary

Problems solved by technology

Gas-phase anti-rust oil is composed of base oil and auxiliary additives. It needs to be applied when used. It is time-consuming and labor-intensive to remove the protective layer, which is neither hygienic nor safe.

The vapor phase anti-rust powder needs to be used in bags. Once the bag is damaged, the anti-rust powder will scatter and cause losses.

Gas-phase anti-rust paper has poor toughness and is easy to be damaged, and the surface is easy to absorb moisture and oil, which leads to a decrease in packaging effect and affects the anti-rust function

Although the gas-phase anti-rust film has the characteristics of transparency, flexibility, processability, and high barrier properties, the components of the gas-phase corrosion inhibitor all contain nitrite, a strong carcinogen banned internationally, and the process disclosed in CN01127534. The corrosion inhibitor is directly added to the resin to blow the film, and the particle distribution of the gas phase corrosion inhibitor is not uniform, and the obtained film product will have rough surface and frosting; while the corrosion inhibitor and adhesive are mixed and coated on the plastic film. method, the energy consumption is large and the process is complicated, and it cannot be produced cleanly, and it is easy to affect the anti-rust effect due to uneven mixing.

At present, there is no gas phase antirust packaging material based on paper fiberboard, especially no gas phase antirust paper fiberboard packaging material based on lauric acid-based hydroxyethyl imidazoline and phytic acid compound corrosion inhibitor and its preparation method. to report

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