PI film aluminum plating

PI (polyimide) film aluminum plating is a composite material in which a high-purity aluminum layer is uniformly deposited on the surface of a high-performance PI film through vacuum evaporation technology. This product combines the excellent performance of PI film, such as high temperature resistance, chemical corrosion resistance, and excellent mechanical propertiesThe strength and electrical insulation, as well as the good conductivity, reflectivity, and barrier properties of aluminum coatings, provide high-performance solutions for multiple industries.

Product characteristics

1. Excellent high temperature resistance: PI film can maintain its physical and chemical stability at extremely high temperatures, and this characteristic is still retained after aluminum plating, making it suitable for applications in high temperature environments.

2. Excellent chemical corrosion resistance: PI film has good resistance to most organic solvents, acids, alkalis, etc. The aluminum plating layer further enhances its corrosion resistance and extends the product's service life.

3. High reflectivity: The aluminum coating has high reflectivity and can effectively reflect light or electromagnetic waves. It is widely used in applications that require high reflectivity, such as optical mirrors, electromagnetic shielding materials, etc.

4. Good barrier properties: The aluminum plating layer has a good barrier effect on gases, moisture, etc., and is suitable for packaging materials, electronic component packaging, and other fields that require high barrier properties.

5. Excellent mechanical properties: PI film itself has excellent mechanical strength, wear resistance, and tear resistance, which are maintained even after aluminum plating, ensuring stable performance of the product during use.

Production process

1. PI film preparation: Select a PI film that meets the requirements as the substrate, ensuring that its thickness, width, flatness, and other indicators meet the subsequent processing needs.

2. Surface treatment: Clean, degrease, activate and other surface treatments are carried out on the PI film to improve the adhesion and uniformity of the aluminum coating.

3. Vacuum evaporation: In a vacuum environment, high-purity aluminum wire or block is evaporated into a gaseous state by heating, and then deposited on the surface of PI film to form a coating. During this process, precise control of parameters such as vacuum degree, evaporation temperature, and evaporation rate is required to ensure the quality and thickness of the coating.

4. Post processing: Cooling, curing, testing and other post-processing are carried out on the PI film after aluminum plating to improve the stability and performance of the product.

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