• 专利标题:   Preparation of uniform graphene dispersion by mixing surfactant aqueous solution and raw graphite powder, stirring obtained suspension, heating to obtain slurry, centrifuging, and filtering.
  • 专利号:   CN102583335-A, CN102583335-B
  • 发明人:   CHEN H, HE G, LI D, MA K, SHI J, SUN X, WANG X, XI H
  • 专利权人:   UNIV CHANGZHOU
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN102583335-A 18 Jul 2012 C01B-031/04 201307 Pages: 7 Chinese
  • 申请详细信息:   CN102583335-A CN10018109 19 Jan 2012
  • 优先权号:   CN10018109

▎ 摘  要

NOVELTY - A uniform graphene dispersion is prepared by mixing (g/l) surfactant aqueous solution (0.2-20) and raw graphite powder (1-100) to obtain a suspension, stirring the suspension at a speed of 50-300 revolutions/minute (rpm), heating at 100-300 degrees C and a pressure of 0.1-8.6 MPa for 5-24 hours to obtain a slurry, centrifuging at a speed of 1000-2000 rpm for 15-45 minutes, and filtering. USE - Method of preparing uniform graphene dispersion. ADVANTAGE - The method is low cost, recycles materials, does not discharge waste gas, utilizes non-corrosive and non-toxic materials, does not damage native conjugated structure of graphene, can be applied to industrial production, and prepares product having excellent dispersity and stability. DESCRIPTION OF DRAWING(S) - The drawing is a flow chart of a method of preparing a uniform graphene dispersion (Drawing includes non-English language text).