• 专利标题:   Anti-aging BOPP film used in film capacitor, comprises polypropylene, and oxygen-resistant modified graphene, where the anti-oxygen modified graphene is obtained by grafting reaction of graphene and antioxidant.
  • 专利号:   CN113831638-A, CN113831638-B
  • 发明人:   BAO J, TONG H, WU Z, LIN M
  • 专利权人:   HUBEI LONGCHEN SCI TECHNOLOGY CO LTD
  • 国际专利分类:   C08J005/18, C08K003/04, C08K009/04, C08L023/12, H01G004/33
  • 专利详细信息:   CN113831638-A 24 Dec 2021 C08L-023/12 202217 Chinese
  • 申请详细信息:   CN113831638-A CN11088315 16 Sep 2021
  • 优先权号:   CN11088315

▎ 摘  要

NOVELTY - Anti-aging BOPP film comprises 85-95 pts. wt. polypropylene, and 0.01-0.1 pts. wt. oxygen-resistant modified graphene. The anti-oxygen modified graphene is obtained by grafting reaction of graphene and antioxidant. USE - Anti-aging BOPP film used in film capacitor (claimed). ADVANTAGE - The anti-aging BOPP film has good anti-aging performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing anti-aging BOPP film, which involves weighing the raw material according to parts by weight, mixing and melting each raw material at 180-250degrees Celsius by a screw extruder, extruding the molten body through the casting die head to obtain the BOPP film, heating the film to 110-140degrees Celsius, orderly performing transverse stretching and longitudinal stretching, after stretching, cooling the film to 20-30degrees Celsius in 10 s, obtaining anti-aging BOPP film.