• 专利标题:   Preparation of graphene-polypropylene composite antibacterial masterbatch used for preparing e.g. films, involves grafting hydrophobic molecule chain segments on graphene oxide, pre-mixing, extruding, granulating and compounding e.g. antibacterial agent and polypropylene.
  • 专利号:   CN115433408-A
  • 发明人:   ZHANG G, DANG X, LIU H, BAI Y
  • 专利权人:   UNIV LANZHOU, FANGDA CARBON NEW MATERIAL TECHNOLOGY CO
  • 国际专利分类:   C08J003/22, C08K003/04, C08K005/31, C08K009/04, C08K009/12, C08L023/12, C08L079/00
  • 专利详细信息:   CN115433408-A 06 Dec 2022 C08L-023/12 202313 Chinese
  • 申请详细信息:   CN115433408-A CN11052443 31 Aug 2022
  • 优先权号:   CN11052443

▎ 摘  要

NOVELTY - Preparation of graphene-polypropylene composite antibacterial masterbatch involves (s1) grafting hydrophobic molecule chain segments on graphene oxide, and (s2) pre-mixing, extruding, granulating and compounding the graphene oxide grafted on the hydrophobic molecular chain segment, antibacterial agent and polypropylene to obtain two-phase fully compatible masterbatch. USE - Preparation of graphene-polypropylene composite antibacterial masterbatch used for preparing films and non-woven fabric (all claimed). ADVANTAGE - Since the graphene oxide is grafted with hydrophobic molecular chain segments on the surface, the hydrophilicity of graphene oxide is reduced, and the compatibility of modified graphene oxide and organic polymer substrate such as polypropylene is enhanced. The interaction between the graphene oxide filler and the polypropylene substrate reduces the interfacial energy of the composite system. After simple extrusion, granulation and melt compounding, a fully compatible two-phase graphene-polypropylene composite antibacterial masterbatch can be obtained. Films and non-woven fabrics having high mechanical strength and antibacterial property are produced using the composite masterbatch without subsequent treatment.