• 专利标题:   Anticorrosive coating comprises base coating composed of modified graphene powder, epoxy modified silicone resin, and mixed solution of toluene and butanol, where modified graphene powder is graphene oxide grafted with passivating agent.
  • 专利号:   CN107987721-A
  • 发明人:   YANG Y, GUO X, CHEN X, ZHANG S
  • 专利权人:   ELECTRIC POWER RES INST YUNNAN ELECTRIC, JIANGXI WENTIAN TECHNOLOGY CO LTD
  • 国际专利分类:   C09D183/04, C09D005/08, C09D005/24, C09D007/20
  • 专利详细信息:   CN107987721-A 04 May 2018 C09D-183/04 201837 Pages: 8 Chinese
  • 申请详细信息:   CN107987721-A CN11318565 12 Dec 2017
  • 优先权号:   CN11318565

▎ 摘  要

NOVELTY - An anticorrosive coating comprises base coating composed of 1-3 pts. wt. modified graphene powder, 15-50 pts. wt. epoxy modified silicone resin, and 10-100 pts. wt. mixed solution of toluene and butanol. The modified graphene powder is a graphene oxide grafted with passivating agent on the surface. USE - Anticorrosive coating. ADVANTAGE - The anticorrosive coating has excellent graphene conductivity, corrosion resistance and electrical conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of anticorrosive coating, which involves (S1) mixing 3-10 pts. wt. graphene oxide and 100-300 pts. wt. thionyl chloride, ultrasonically vibrating for 0.5-1 hour, heating the product at 60-75 degrees C for 3-5 hours, distilling thionyl chloride under reduced pressure, adding 300-700 pts. wt. dimethylbenzene solution containing 3-8 pts. wt. passivating agent to the obtained product, reacting at 15-25 degrees C for 3-5 hours, filtering, washing, adding 3000-5000 pts. wt. water and 5-10 pts. wt. hydrazine hydrate to the obtained product, reacting in water bath at 90-95 degrees C for 1-1.5 hours, filtering, washing, and vacuum drying to obtain modified graphene powder, where the modified graphene powder is a graphene oxide grafted with passivating agent on the surface, (S2) mixing 1-3 pts. wt. modified graphene powder with 15-50 pts. wt. epoxy-modified silicone resin, and adding 10-100 pts. wt. mixed solvent of toluene and butanol, and (S3) ball milling the product obtained in step (S2) for 2-5 hours.