• 专利标题:   Preparing graphene oxide-polyvinylidene fluoride composite hollow fiber film used for sewage treatment and purification of tap water, involves pre-processing polyvinylidene fluoride film wire by using polyethylene imine to obtain film wire.
  • 专利号:   CN113019151-A, CN113019151-B
  • 发明人:   CHEN Y, ZHANG J, LI S, WEI J, MO H, XUE Y, MENG J, LIU M
  • 专利权人:   BEIJING ORIGIN WATER MEMBRANE TECHNOLOGY
  • 国际专利分类:   B01D067/00, B01D069/08, B01D069/12, C02F001/44
  • 专利详细信息:   CN113019151-A 25 Jun 2021 B01D-069/08 202158 Pages: 13 Chinese
  • 申请详细信息:   CN113019151-A CN10224198 01 Mar 2021
  • 优先权号:   CN10224198

▎ 摘  要

NOVELTY - Preparing graphene oxide-polyvinylidene fluoride composite hollow fiber film comprises pre-processing polyvinylidene fluoride film wire by using polyethylene imine to obtain polyethyleneimine-polyvinylidene fluoride film wire, using polyethylene imine pre-processing graphene oxide obtaining polyethylene imine-graphene oxide, adding the polyethyleneimine-polyvinylidene fluoride film wire into the polyethyleneimine-oxidized graphene, compounding the polyethyleneimine-polyvinylidene fluoride film wire and the polyethyleneimine-graphene oxide by suction processing, taking out and drying to obtain the graphene oxide-polyvinylidene fluoride composite hollow fiber film. USE - The method is useful for preparing graphene oxide-polyvinylidene fluoride composite hollow fiber film used for sewage treatment and purification of tap water (claimed). ADVANTAGE - The film has high water flux and excellent stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide-polyvinylidene fluoride composite hollow fiber film.