• 专利标题:   Preparing graphite oxide and graphene/polylactic acid composite material, involves dissolving polyvinyl alcohol particles in deionized water, dispersing graphite oxide in ionic water, adding hydrazine hydrate, peeling off film, and drying.
  • 专利号:   CN110862657-A
  • 发明人:   ZHI T
  • 专利权人:   ZHI T
  • 国际专利分类:   C08J005/18, C08K003/04, C08L067/04
  • 专利详细信息:   CN110862657-A 06 Mar 2020 C08L-067/04 202026 Pages: 5 Chinese
  • 申请详细信息:   CN110862657-A CN10987531 28 Aug 2018
  • 优先权号:   CN10987531

▎ 摘  要

NOVELTY - Method for preparing graphite oxide and graphene/polylactic acid composite material, by (a) dissolving polyvinyl alcohol particles in deionized water at 95 degrees C in 500 ml three-necked flask with mechanical stirring and oil bath heating device to obtain an 0.08 g/ml aqueous solution, (b) dispersing required amount of graphite oxide in 50 ml ionic water, uniformly stirring, slowly pouring to a flask, uniformly stirring at 95 degrees C for 3 days, when preparing graphene/polyvinyl alcohol, adding hydrazine hydrate after stirring for 2 days, and continuously stirring for 1 day, where the mass ratio of hydrazine hydrate and graphite oxide is 1:1, and (c) adding the mixture to a mold, placing in a oven at 40 degrees C for 2 days, peeling off the formed film, uniformly drying at 8 degrees C for 2 days, testing the desired sample using film having thickness of 300 plus minus 20 mu m, where the mass percentage of graphite oxide or graphene in polyvinyl alcohol- graphite oxide and polyvinyl alcohol-graphene is 0.4, 0.8 or 1.6. USE - Method for preparing graphite oxide and graphene/polylactic acid composite material. ADVANTAGE - The method is simple and easy to control temperature.