• 专利标题:   Preparing easily dispersible pigment containing graphene, comprises dispersing graphene or graphene oxide in medium containing organic pigments, adding non-ionic surfactant, grinding, dispersing, adding anionic surfactant and drying.
  • 专利号:   CN112812615-A
  • 发明人:   LV D, CHEN D, LI X, SONG X, CHEN X
  • 专利权人:   YUHONG PIGMENT CO LTD, UNIV DEZHOU
  • 国际专利分类:   C09D011/037, C09D007/41, C09D007/61
  • 专利详细信息:   CN112812615-A 18 May 2021 C09D-007/41 202147 Pages: 9 Chinese
  • 申请详细信息:   CN112812615-A CN10108140 27 Jan 2021
  • 优先权号:   CN10108140

▎ 摘  要

NOVELTY - Preparing easily dispersible pigment containing graphene, comprises (a) dispersing graphene or graphene oxide in a medium containing organic pigments, stirring and pulping to obtain a pigment slurry; (b) adding a non-ionic surfactant, stirring and pulping the slurry, and grinding and dispersing the mixture through a sand mill; and (c) adding an anionic surfactant into the slurry, and drying by a spray dryer. USE - The method is useful for preparing easily dispersible pigment containing graphene. ADVANTAGE - The graphene-containing easily dispersible pigment has high tinting power, small particle size, more concentrated particle size distribution and good dispersibility when applied in paints and inks, a tinting strength of 116%; and the particle diameters of D10, D50 and D90 of the easily dispersible pigments containing graphene and graphene oxide are all smaller than those of untreated organic pigments, especially the particle diameters of D90 and D50 are significantly reduced.