Aluminum foil can be used for packaging, electrolytic capacitors, thermal insulation and other materials.
Polyaluminum chloride can be produced from waste aluminum foil. Polyaluminum chloride is a commonly used inorganic polymer flocculant. The wide range of raw material sources for the production of polyaluminum chloride lays the foundation for its development. In particular, the variety of production processes provides convenience for the development of polyaluminum chloride.
Waste aluminum foil comes from a wide range of sources, mainly from cigarettes, food and pharmaceutical packaging, etc. Its main component is metallic aluminum, which has high economic and social value for recycling. After experimental research, the optimal conditions and application range of using waste aluminum foil to make polyaluminum chloride have certain practical significance in improving resource utilization and protecting the environment.
Characteristics of aluminum foil:
1. The surface of aluminum foil is extremely clean and hygienic, and no bacteria or microorganisms can grow on its surface.
2. Aluminum foil is a non-toxic packaging material that can be in direct contact with food without any danger to human health.
3. Aluminum foil is a tasteless and odorless packaging material that will not cause any odor to the packaged food.
4. If the aluminum foil itself is not volatile, it and the packaged food will never dry or shrink.
5. No matter whether it is at high temperature or low temperature, there will be no grease penetration in the aluminum foil.
6. Aluminum foil is an opaque packaging material, so it is a good packaging material for products exposed to sunlight, such as margarine.
7. Aluminum foil has good plasticity, so it can be used to package products of various shapes. Containers of various shapes can also be made at will.
8. Aluminum foil has high hardness and high tensile strength, but its tear strength is low, so it is easy to tear.
9. Aluminum foil itself cannot be heat-sealed. It must be coated with heatable materials, such as PE, on its surface to heat-seal it.
10. When aluminum foil comes into contact with other heavy metals or heavy metals, adverse reactions may occur.
