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  • 专利标题:   Graphene modified inorganic phosphate protective coating comprises component A comprising aqueous solution, curing agent, magnesium chromate, zinc powder and micron aluminum powder, and component B comprising e.g. dispersant and graphite.
  • 专利号:   CN111393880-A
  • 发明人:   SU W, ZHANG J, WANG Z, MIAO C, WEI P, LIU Z
  • 专利权人:   JIANGSU PROVINCE SPECIAL EQUIP SAFETY
  • 国际专利分类:   C09D001/00, C09D005/10, C09D007/61
  • 专利详细信息:   CN111393880-A 10 Jul 2020 C09D-001/00 202060 Pages: 7 Chinese
  • 申请详细信息:   CN111393880-A CN10419402 18 May 2020
  • 优先权号:   CN10419402

▎ 摘　　要

NOVELTY - Graphene modified inorganic phosphate protective coating comprises component A comprising 1-5 pts. wt. aqueous solution, 3-10 pts. wt. curing agent, 15-20 pts. wt. magnesium chromate, 10-15 pts. wt. zinc powder and 50-60 pts. wt. micron aluminum powder, and component B comprising 1-5 pts. wt. aqueous solution, 6-15 pts. wt. curing agent, 2-5 pts. wt. magnesium chromate, 20-25 pts. wt. dispersant, 0.5-1 pts. wt. graphite and 50-60 pts. wt. submicron aluminum powder. The mass ratio of the component A and the component B is 1:1-1.5. USE - Used as graphene modified inorganic phosphate protective coating. ADVANTAGE - The method: improves the shielding effect of corrosion products, and self-repairing effect of coating film; improves the anti-corrosion performance of the coating; improves the hardness and toughness of the coating; utilizes graphene which acts as a partial barrier; and indirectly improves the overall corrosion resistance of the coating. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene-modified inorganic phosphate protective coating, comprising (i) diluting the aqueous solution of aluminum dihydrogen phosphate with deionized water, adding magnesium oxide and zinc oxide, uniformly mixing until completely dissolved, adding a certain amount of magnesium chromate, adding into an ultrasonic instrument, performing shaking treatment, adding zinc powder in sequence with micron-level aluminum powder, magnetically stirring component A, and allowing to stand, (ii) diluting the aqueous solution of aluminum dihydrogen phosphate with deionized water, adding magnesium oxide and zinc oxide, uniformly stirring until completely dissolved, adding a certain amount of magnesium chromate, adding into the ultrasonic instrument to oscillate, adding Triton X-100 (RTM: Polyoxyethylene octyl phenyl ether), adding graphene, mixing and stirring, then adding sub-micron aluminum powder, magnetically stirring, and allowing to stand to obtain component B, and (iii) mixing component A and component B.