Vapor-phase antirust fiberboard and method for preparing same

Abstract

The invention discloses a vapor-phase antirust fiberboard and a method for preparing the same. The method includes sufficiently uniformly mixing benzotriazole-based diethanolamine borate, sodium benzoate, urotropine, waste molasses and heavy calcium carbonate with one another according to a mass ratio of 1-1.5:1.1-1.3:1.3-1.7:2.8-3.8:0.9-1.3 to obtain first mixtures, dispersing the first mixtures in deionized water to obtain second mixtures, regulating a pH (potential of hydrogen) value of the second mixtures by the aid of ammonia water until the pH value is approximately 8.0-9.0 and preparing volatile corrosion inhibitor aqueous dispersion liquid with the mass concentration of 5%-70% from the second mixtures; coating the volatile corrosion inhibitor aqueous dispersion liquid which is volatile corrosion inhibitor aqueous solution on two surfaces of a paper fiberboard by the aid of a coating machine and drying the paper fiberboard in air to obtain the vapor-phase antirust fiberboard with the loading capacity of 10-80 g / m<2> approximately. The benzotriazole-based diethanolamine borate is a compound corrosion inhibitor. The vapor-phase antirust fiberboard and the method have the advantages that the size and the thickness of the vapor-phase antirust fiberboard can be designed, the vapor-phase antirust fiberboard is easy to be removed after use, the compound volatile corrosion inhibitor does not contain the harmful components such as nitrite, and the vapor-phase antirust fiberboard can be conveniently and efficiently used and is environmentally friendly and safe.

Description

[0001] Technical field: [0002] The invention relates to the field of gas phase antirust materials and packaging products, in particular to a gas phase antirust fiberboard and a preparation method thereof. [0003] Background technique: [0004] 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 loss caused by corrosion accounts for about 3% of the GDP of the year, a...

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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 report on the gas phase antirust paper fiberboard packaging material based on sucrose by-product waste molasses compound corrosion inhibitor and its preparation method

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