• 专利标题:   Semi-coated graphene water-based epoxy low-zinc coating in anticorrosive paint, comprises epoxy curing agent, zinc powder, mica iron oxide, first film-forming auxilliary agent, wetting agent, first defoamer as component A, epoxy emulsion, semi-coated graphene, second defoamer as component B.
  • 专利号:   CN115491101-A
  • 发明人:   QUE L, ZHOU S, XU X, ZENG X, ZHANG T, HUANG Y
  • 专利权人:   WUHAN TWIN TIGERS COATINGS CO LTD
  • 国际专利分类:   C09D163/00, C09D005/10, C09D007/62
  • 专利详细信息:   CN115491101-A 20 Dec 2022 C09D-163/00 202312 Chinese
  • 申请详细信息:   CN115491101-A CN11266708 17 Oct 2022
  • 优先权号:   CN11266708

▎ 摘  要

NOVELTY - Semi-coated graphene water-based epoxy low-zinc coating comprises component A and B, where the component A comprising 20-25 pts. wt. epoxy curing agent, 20-60 pts. wt. zinc powder, 10-60 pts. wt. mica iron oxide, 0-8 pts. wt. first film-forming auxiliary agent, 1-2 pts. wt. bentonite, 0-0.4 pts. wt. wetting agent, 0-0.2 pts. wt. first defoamer, and component B comprising 80-90 pts. wt. epoxy emulsion, 0.05-0.3 pts. wt. semi-coated graphene, 0-0.4 pts. wt. second defoamer, 0-5 pts. wt. second film-forming auxilliay agent, 0.1-2 pts. wt. deionized water, 0-1 pts. wt. anti-flash rust agent, and 0-4 pts. wt. thickener. USE - Semi-coated graphene water-based epoxy low-zinc coating used in anticorrosive paint and in heavy anti-corrosion heavy industrial field. ADVANTAGE - The semi-coated graphene water-based epoxy low-zinc coating is easy to prepare and cost-effective, and has excellent anti-corrosion performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a semi-coated graphene water-based epoxy low-zinc coating, which involves: a. weighing curing agent and adding to the reaction tank, controlling the stirring rate to 300-600 r/minutes, adding the first film-forming aid and stirring slowly for 5-10 minutes, then adding bentonite, and raising the stirring rate to 1500-2500 r/minutes, adding the moistening wet agent, first defoamer, zinc powder, micaceous iron oxide, and increasing the stirring rate to 2500-3500 r/minutes and stirring at high speed for 20-40 minutes to obtain component A, where the control temperature is 50-60℃; and b. mixing the epoxy emulsion, the second defoamer, the second film-forming auxiliary agent, deionized water, anti-flash rust agent and thickener, and disperse at a speed of 800-1500 r/minutes for 3-10 minutes to make them fully mixed, adding semi-coated graphene, and adding zirconium beads to continue dispersing for 1-2 hours to obtain product.