• 专利标题:   Preparing polypyrrole/phytic acid/graphene oxide composite anti-corrosion coating useful for corrosion protection of stainless steel in acid environment, comprises e.g. preparing graphene oxide by improved Hummers method.
  • 专利号:   CN111850657-A
  • 发明人:   JIANG L, YUAN Y, LI J, ZHOU X, DONG Y
  • 专利权人:   UNIV SUZHOU SCI TECHNOLOGY
  • 国际专利分类:   C25D015/00, C25D009/02, C25D009/04
  • 专利详细信息:   CN111850657-A 30 Oct 2020 C25D-015/00 202095 Pages: 14 Chinese
  • 申请详细信息:   CN111850657-A CN10753743 30 Jul 2020
  • 优先权号:   CN10753743

▎ 摘  要

NOVELTY - Preparing polypyrrole/phytic acid/graphene oxide composite anti-corrosion coating comprises (i) preparing graphene oxide by the improved Hummers method, and uniformly dispersing in deionized water to obtain a graphene oxide dispersion, (ii) dispersing the pyrrole monomer and phytic acid in deionized water, adding graphene oxide dispersion, stirring until uniform, and preparing mixed electrolyte, and (iii) using the three-electrode method, using the mixed electrolyte as the supporting solution, and electrodepositing the composite coating. USE - The coating is useful for corrosion protection of stainless steel in acid environment (claimed). ADVANTAGE - The coating: solves the problems of micropores, poor adhesion, and lack of good stability in the existing conductive polymer anticorrosion coatings; and has good application prospects in stainless steel materials used in oil and gas wells, acid soils and metal bipolar plates of fuel cells. The method: is simple; and realizes the direct and rapid large-area deposition of coating material on the surface of stainless steel.