• 专利标题:   Preparing modified phenolic resin comprises e.g. adding formaldehyde to the molten phenol A, cool down, adding basic catalyst to obtain mixed solution, heating, and uniformly mixing molten phenol B and graphene oxide.
  • 专利号:   CN108822272-A
  • 发明人:   YAO Y, WANG L, TIAN M, LIU J, TU C, SUN Y, ZHANG L, SUN H, SONG J, WEI X
  • 专利权人:   BEIJING FRP RES DESIGN COMPOSITE MATER
  • 国际专利分类:   C08G008/10, C08K003/04
  • 专利详细信息:   CN108822272-A 16 Nov 2018 C08G-008/10 201910 Pages: 8 Chinese
  • 申请详细信息:   CN108822272-A CN10286475 03 Apr 2018
  • 优先权号:   CN10286475

▎ 摘  要

NOVELTY - Preparing modified phenolic resin comprises (i) adding formaldehyde to the molten phenol A during stirring, stirring for 10-60 minutes, then cool down, and adding a basic catalyst to obtain a mixed solution, heating the mixed solution at the rate of 0.2-0.5 degrees C/minutes to 80-90 degrees C for 0.5-2 hours, (ii) uniformly mixing the molten phenol B and the graphene oxide to obtain a graphene oxide dispersion, and (iii) cooling the mixed solution, uniformly mixing with the resulting graphene oxide dispersion, heating at the rate of 0.05-0.35 degrees C/minutes to 75-85 degrees C, then raising the temperature at the rate of 0.23-0.3 degrees C/minutes to 90-98 degrees C for 2-4 hours. USE - The method is useful for preparing modified phenolic resin. ADVANTAGE - The method: improves the dispersibility of graphene in a phenolic resin.