Superior Eco-friendly Aluminum Foil For Food Package and Vehicle’s Battery industries
1. Product Categories:
Foil: a cold rolled material 0.2mm thick or less
2.Properties of aluminum Foil
1) Mechanical properties: The mechanical properties of aluminum foil mainly include tensile strength, elongation, cracking strength, etc. The mechanical properties of aluminum foil are mainly determined by its thickness.
Aluminum foil is light in weight, good in ductility, thin in thickness and small in mass per unit area. However, it is low in strength, easy to tear, easy to break and produce holes when folded, so it is generally not used for packaging products alone. In many cases, it is compounded with other plastic films and paper to overcome its shortcomings.
2)High barrier: Aluminum foil has high barrier to water, water vapor, light and fragrance, and is not affected by environment and temperature. Therefore, it is often used in fragrance-preserving packaging and moisture-proof packaging to prevent moisture absorption, oxidation and volatile deterioration of the contents of the package. Especially suitable for high-temperature cooking, sterilization and packaging of food.
3)Corrosion resistance: An oxide film is naturally formed on the surface of aluminum foil, and the formation of the oxide film can further prevent the continuation of oxidation. Therefore, when the contents of the package are highly acidic or alkaline, protective coatings or PE are often coated on its surface to improve its corrosion resistance.
4)Heat resistance and low temperature resistance: the aluminum foil is stable at high temperature and low temperature, does not expand and shrink at -73~371℃, and has good thermal conductivity, with a thermal conductivity of 55%. Therefore, it can not only be used for high-temperature cooking or other hot processing, but also for frozen packaging.
5)Shading: Aluminum foil has good shading, its reflective rate can be as high as 95%, and its appearance is silvery white metallic luster. It can show good packaging and decoration effect through surface printing and decoration, so aluminum foil is also a high-grade packaging material.
