| abstract |
[PROBLEMS] To maintain dimensional stability and heat resistance at the same level as conventional products, to form uniform and dense irregularities on the surface, and to reduce insulation defects. To provide a polypropylene film having excellent voltage characteristics. Moreover, the metallized film and capacitor | condenser using this polypropylene film are provided. Furthermore, to provide a polypropylene film that is excellent in workability and handling properties in metallization and capacitor element production. SOLUTION: Polypropylene having a trouton ratio of 30 or more and / or including a polypropylene having a trouton ratio of 14 or more and less than 30 and / or having a long chain branch in the main chain skeleton, and center lines on both sides of the film An average surface roughness (Ra) and a maximum surface roughness (Rmax) satisfy the following relational expression (1): a polypropylene film for capacitors, and a metallized film and a capacitor using the polypropylene film. Rmax / Ra ≦ 20 (1) [Selection figure] None. |