• 专利标题:   Mildew-proof and damp-proof gypsum-based graphene coating modified graphene powder, dihydrate gypsums, slaked lime, mildew inhibitor, calcified bentonite, sodium bicarbonate, and water glass, modified graphene powder is one or more of graphene oxide powder or hydroxylated modified graphene powder.
  • 专利号:   CN115322601-A
  • 发明人:   PENG J, JIN S, YANG H, QIN W
  • 专利权人:   SHANGHAI MAIFANG CARBON TECHNOLOGY CO
  • 国际专利分类:   C09D001/00, C09D001/10, C09D005/14, C09D007/61, C09D007/62
  • 专利详细信息:   CN115322601-A 11 Nov 2022 C09D-001/00 202302 Chinese
  • 申请详细信息:   CN115322601-A CN11127838 16 Sep 2022
  • 优先权号:   CN11127838

▎ 摘  要

NOVELTY - Mildew-proof and damp-proof gypsum-based graphene coating comprises 5-10 pts. wt. modified graphene powder, 300-500 pts. wt. dihydrate gypsum, 100-150 pts. wt. slaked lime, 15-20 pts. wt. mildew inhibitor, 200-250 pts. wt. calcified bentonite, 40-50 pts. wt. sodium bicarbonate, and 10-20 pts. wt. water glass. USE - Mildew-proof and damp-proof gypsum-based graphene coating. ADVANTAGE - The gypsum-based graphene coating has high strength, high toughness, good water resistance, mildew-proof and damp-proof. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing mildew-proof and damp-proof gypsum-based graphene coating, which involves at room temperature, putting dihydrate gypsum into the grinder, then adding sodium bicarbonate and slaked lime, fully mechanically grind and stir for 20 minutes, fully mechanical grinding and stirring for 20 minutes, at 150℃ and 0.3MPa, transferring the material to a ball mill, ball milling modified graphene powder and a certain amount of water, and grinding for 20-30 minutes, in the ball mill, continuing adding calcified bentonite, fungicide, water glass and a certain amount of water at 150℃, at normal pressure, selectively adding coagulant, ball milling for 20-30 minutes, drying the gypsum-based graphene coating colloid obtained into powder at 150℃ and sieving and packaging.