We know that the vapor-phase anti-corrosion bag currently used is mainly due to its content of volatile substances, that is, vapor-phase corrosion inhibitor.
Therefore, in the processing and production process of the vapor phase anti-corrosion packaging material, the vapor phase corrosion inhibitor needs to be in close contact with the packaging material and be released in the form of gas.
The technology used in the VCI bag is VCI technology, and its main function is the anti-rust agent with anti-corrosive properties.
In a sealed space, this inhibitor will change with the surrounding environment and volatilize anti-rust ions. When they fill the entire enclosed space, they will chemically react with various substances in the air after being saturated, reducing the amount of metal Contact and reaction to protect the metal.
Therefore, whether it is to make or use vapor phase anti-corrosion packaging, it is necessary to investigate the volatility of the vapor phase corrosion inhibitor in the material to ensure that the vapor phase corrosion inhibitor can volatilize from the packaging material.
Secondly, it is necessary to ensure the stability of the packaging. Unlike ordinary packaging materials, the VCI material may contain a variety of chemical substances.
It is necessary to ensure that there is no antagonism between the various chemical substances and that there is no interaction between the corrosion inhibitor itself and the material. Destructive effects, but also have good stability, will not be decomposed under ordinary light and heat, to avoid failure or reduce rust resistance.
Next is the airtightness of the packaging. Because the vapor phase corrosion inhibitor needs better volatility, it is necessary to provide better airtightness to extend the timeliness of the vapor phase anti-corrosion packaging material.
Generally, VCI packaging materials with poor airtightness can only provide short-term metal rust resistance, while VCI materials with better airtightness can provide metal rust resistance for decades.
