• 专利标题:   Aqueous graphene conductive paste used in RFID tag, comprises graphene, deionized water, surfactant, gel, bonding material, light curing agent and auxiliary agent, where surface active agent is selected from tea saponin.
  • 专利号:   CN112309609-A, CN112309609-B
  • 发明人:   LIU Z, MA Y, CHEN S, LI J, QI X, WEI H
  • 专利权人:   SHANDONG HUAGUAN SMART CARD CO LTD
  • 国际专利分类:   G06K019/077, H01B001/24, H01B013/00
  • 专利详细信息:   CN112309609-A 02 Feb 2021 H01B-001/24 202116 Pages: 7 Chinese
  • 申请详细信息:   CN112309609-A CN11080054 10 Oct 2020
  • 优先权号:   CN11080054

▎ 摘  要

NOVELTY - Aqueous graphene conductive paste comprises 10-15 pts. wt. graphene, 40-60 pts. wt. deionized water, 1-3 pts. wt. surfactant, 5-8 pts. wt. gel, 30-35 pts. wt. bonding material, 0.5-2 pts. wt. light curing agent and 1-5 pts. wt. auxiliary agent. The surface active agent is tea saponin, cyclic lipopeptide salt, lignin sulfonate and/or dodecyl benzene sulfonate. The gelling agent is alginate, cellulose, polyvinyl alcohol, xanthan gum and/or agar powder. USE - Aqueous graphene conductive paste used in RFID tag (claimed). ADVANTAGE - The aqueous graphene conductive slurry has improved stability, effectively resists rolling deformation, and has improved bonding effect and wear-resisting effect and better printing adaptability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following (1) a method for preparing the aqueous graphene conductive paste, which involves adding surfactant to deionized water, and adding graphene under the conditions of ultrasonic and magnetic stirring to make it dispersed;adding binder, light curing agent and auxiliary agent, then adding gel agent, heating, cooling under high-speed shearing condition, and grinding it; and (2) an RFID tag, which includes water-based graphene conductive slurry.