• 专利标题:   Method for preparation of graphene oxide bonded silicone adhesive composite material for cigarette, involves subjecting graphite powder to pre-oxidation treatment, followed by adding potassium permanganate.
  • 专利号:   CN104489922-A, CN104489922-B
  • 发明人:   WANG W, SUN Z, ZHOU J, ZHANG J, LIU D, XU T, YAN L
  • 专利权人:   SHANGHAI TOBACCO GROUP BEIJING CIGARETTE, SHANGHAI TOBACCO GROUP CO LTD, SHANGHAI TOBACCO GROUP BEIJING CIGARETTE
  • 国际专利分类:   A24D003/04
  • 专利详细信息:   CN104489922-A 08 Apr 2015 A24D-003/04 201544 Pages: 14 Chinese
  • 申请详细信息:   CN104489922-A CN10766164 11 Dec 2014
  • 优先权号:   CN10766164

▎ 摘  要

NOVELTY - A graphene oxide bonded silicone adhesive composite material preparation method involves adding sodium nitrate and concentrated sulfuric acid to graphite powder, subjecting mixture to pre-oxidation treatment, adding potassium permanganate to the mixture under stirring condition, and diluting the mixture with water and stirring uniformly. The mixture is added with hydrogen peroxide, filtered, and graphene oxide powder is collected. The graphene oxide powder is added with N,N-dimethylformamide, subjected to ultrasonic dispersion, added with silicone adhesive and dicyclohexylcarbodiimide, heating and refluxing the mixture, subjecting the mixture to centrifugation, filtering mixture, and drying product. USE - Method for preparation of graphene oxide bonded silicone adhesive composite material for cigarette (both claimed). ADVANTAGE - The method enables preparing graphene oxide bonded silicone adhesive composite material for cigarette that reduces tobacco-specific nitrosamine content in an effective manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a graphene oxide bonded silicone adhesive composite material (2) a cigarette comprising 3-8 mg graphene oxide bonded silicone adhesive composite material, where cigarette comprises cellulose acetate with tobacco end and mouth end, and middle portion is filled with graphene oxide bonded silicone adhesive composite material.