Coated aluminum foil is a special treatment process that covers one or more layers on the surface of aluminum foil. Je to kompozitný materiál široko používaný v obaloch, izolácie a priemyselné aplikácie. Štruktúra potiahnutej hliníkovej fólie zvyčajne pozostáva z viacerých vrstiev, vrátane substrátu z hliníkovej fólie a rôznych povlakov navrhnutých pre špecifické funkcie.
Aluminum foil itself is a soft metal foil, and after being compounded with other materials, it can obtain a composite foil material with better performance. The coating structure of coated aluminum foil can be divided into many types, each of which has its specific functions and uses.
Material: The substrate of the coated aluminum foil is high-purity aluminum. Features: The substrate layer has excellent electrical conductivity, thermal conductivity and ductility, providing a solid foundation for the entire coated aluminum foil. Its thickness is usually thin, generally between 0.01 a 0.2 mm.
Function: It mainly protects the surface of the aluminum foil and prevents the aluminum foil from being damaged by the outside world. Material: Such as alumina coating, atď., can improve the corrosion resistance of the aluminum foil and make it more durable.
Function: By coating a layer of reinforcement material on the surface of the aluminum foil, the strength and hardness of the aluminum foil can be improved, making it more wear-resistant and durable. Material: Select the appropriate reinforcement material according to specific needs.
Function: Improve the toughness and tear resistance of the aluminum foil, making it more durable. Material: Select a coating material with a toughening effect.
Function: Improve the thermal insulation performance of the aluminum foil, making it more suitable for applications in high temperature environments. Material: Coat a layer of thermal insulation material, such as polystyrene, polyurethane, atď.
Function: Aluminum foil itself has good barrier properties. By coating one or more layers of barrier materials on the surface, its barrier properties against moisture, oxygen or other harmful substances can be further improved. Material: Plastic film, papier, special barrier coating, atď.
To enhance the adhesion of a coating or improve surface properties, aluminum foil may undergo: Chemical Treatments: Conversion coating or anodizing for improved corrosion resistance. Mechanical Treatments: Embossing or texturing for aesthetic or functional purposes. Primer Applications: A thin primer layer may be applied to improve adhesion between the foil and subsequent coatings.
Thermal Stability: Resistant to high and low temperatures, suitable for food packaging and industrial uses. Barrier Properties: Excellent barrier to moisture, svetlo, and gas, essential for preserving contents. Mechanical Flexibility: Remains lightweight and flexible while maintaining strength. Customizability: Coatings can be tailored to specific application needs, such as heat resistance, printability, or chemical compatibility.
