• 专利标题:   Preparing modified separation membrane of oxidation graphene based on electrostatic spray in film distillation industry development, involves mixing oxidized graphene, plant polyphenol, dispersant, ultrasonically dispersing, spraying, and cross-linking hydrophobic base film.
  • 专利号:   CN114452840-A, CN114452840-B
  • 发明人:   HAN M, MENG F, YU Z, ZHAO S
  • 专利权人:   UNIV SUN YATSEN
  • 国际专利分类:   B01D061/36, B01D067/00, B01D069/02, B01D071/26, C02F001/44, C02F103/08
  • 专利详细信息:   CN114452840-A 10 May 2022 B01D-071/26 202270 Chinese
  • 申请详细信息:   CN114452840-A CN10109317 28 Jan 2022
  • 优先权号:   CN10109317

▎ 摘  要

NOVELTY - Preparing a modified separation membrane of oxidation graphene based on electrostatic spray, involves mixing the oxidized graphene, plant polyphenol, dispersant, and ultrasonically dispersing to obtain an oxidation-graphene-plant polyphenolic dispersion. The oxidizing graphene-plant polyphenols dispersion is sprayed to any surface hydrophobic basement membrane by electrostatic spraying method. The polyethyleneimine is used to cross-link the hydrophilic base membrane to obtain the oxidization graphene modified separation film, where the spraying and the crosslinking treatment are carried out on the same surface of the water-based membrane. USE - Method for preparing of a modified separation membrane of oxidation graphene based on electrostatic spray, which is useful in film distillation industry development (claimed). ADVANTAGE - The method only modifies one surface of the hydrophobically-hydrophobic base film, and the other side does not process, ensuring hydrophoilic transmission layer needed in the film distillation process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an oxidized graphene modified separation membrane obtained by the method preparation to any one of claims to.