• 专利标题:   Modified graphene oxide is obtained by dehydration condensation reaction of graphene oxide with mercaptosiloxane after hydrolysis.
  • 专利号:   CN110343299-A
  • 发明人:   QIE X, ZHAO X, YAN S, WANG X, ZHANG X
  • 专利权人:   SHIJIAZHUANG BEIKE SEALING TECHNOLOGY CO, UNIV HEBEI SCI TECHNOLOGY
  • 国际专利分类:   C08K013/06, C08K003/04, C08K005/14, C08K005/39, C08K005/435, C08K009/06, C08L013/00, C08L009/02
  • 专利详细信息:   CN110343299-A 18 Oct 2019 C08L-009/02 201987 Pages: 16 Chinese
  • 申请详细信息:   CN110343299-A CN10563590 26 Jun 2019
  • 优先权号:   CN10563590

▎ 摘  要

NOVELTY - Modified graphene oxide is obtained by dehydration condensation reaction of graphene oxide with mercaptosiloxane after hydrolysis, where mass ratio of the mercaptosiloxane to graphene oxide is 6-8:1. The dehydration condensation reaction temperature is 65-95 degrees C, and the reaction time is 9-12 hours. USE - Modified graphene oxide. ADVANTAGE - The modified graphene oxide is helps to solves problem of poor high and low temperature resistance of the nitrile rubber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing a graphene-modified nitrile rubber, which involves: (A) weighing formulation of graphene-modified nitrile rubber; (B) masticating the nitrile rubber to obtain a plastic compound; (C) sequentially adding a vulcanizing agent, a vulcanization activator, a plasticizer, an antioxidant, and a filler to obtained plasticating rubber and uniformly mixing to obtain a premixed compound; (D) cooling obtained premixed compound, adding a modified graphene oxide-carboxybutyronitrile rubber masterbatch, and uniformly mixing to obtain a mixed compound; (E) mixing obtained rubber and cooling, adding vulcanization accelerator and uniformly mixing mixture and then obtaining lower film to obtain a kneaded rubber film; and (F) vulcanizing obtained rubberized film at 150-170 degrees C for 90 minutes to obtain a graphene-modified nitrile rubber.