Bf Metalized Polyester Film For Capacitor Use

bf Metalized Polyester film for capacitor use This film is specially used for film capacitors, as power electronics capacitors,DC capacitor, AC capacitor and so on This film is manufactured with high purity, high isotacticity polypropylene. It has high BDV, excellent mechanical strength. A) Different type  films    1. Aluminum metalized polypropylene film. 2. Aluminum-Zinc metalized polypropylene film. 3. Aluminum-Zinc metalized polypropylene film with heavy edge. 4. Aluminum metalized polyester film. 5. Aluminum-Zinc metalized polyester film. 6. Aluminum-Zinc metalized polyester film with heavy edge. 7. Safety metallized film B) Specifications of metallized film    Properties   Unit   Typical value Density g/cm3 1.4  Thickness µm <5 5~12 ≥12 Tensile Strength MD (MPa) ≥84 ≥108 ≥120 Elongation at Break MD (%) ≥22 ≥33 ≥44 Elastic Modulus MD (MPa) 3500 Break-dowm Voltage V/µm ≥200  ( 23°C, DC ) ≥250  ( 23°C, DC ) Heat Shrinkage MD (%) ≤2.5 ( 150°C, 10min) Surface Roughness µm 0.095 Melting Point ℃ 256 Volume Resistivity Ω.m >1015   ( 23°C, Humidity 50%) Dielectric Constant   3.2  (20℃,1KHz) Dissipation Factor - ≤60×10-4  (20℃,1KHz ) RC ΩF ≥1×104 Packaging 1.Film rolls are packed and heat-sealed in vacuum plastic bags with desiccants inside. 2. The Bags are marked with type labels, mark thickness width, free margin width and resistance. 3. The bags are packed in carton cases. 4The cartons are wrapped by wooden cases or reinforced carton. Storage 1.  Metallized film should be stored in its original package with temperature 5 - 35℃ and humidity less than 85%RH before using. 2. Metallized layer is easily oxidized when exposure to moisture. Therefore, the film should be used as soon as possible when opened. 3. The recommended temperature is 15 -25℃ with humidity less than 60%RH after opening 4. With original sealed package, and stored as mentioned above, the storage time can be as following: 5.Al metallized film: 12 months from the delivery date. Al/Zn Alloy metallized film: As zinc is quite unstable , the storage period (from delivery date) depends on the resistance of the film: ≤10 Ω/ :6 months 10 ~30Ω/: 3 months >30Ω/:1month Company Information   1.As a national high-tech enterprise,we have 22 years exprience in capacitor film industry,25 industry patents and a number of invention patents. 2.To ensure the product quality and consistency,we have obtained the ISO 9001 quality system certificate  and CQC product certificate. 3.We have modern factories and purification plant,the world first-class production equipment and the technical team consisted of a number of experts. We are committed to become a world-class supplier! Our Factory Certifications