• 专利标题:   Producing carbon paper useful for manufacturing electromagnetic wave shielding sheet comprises mixing cellulose fibers and graphene in water, adding crosslinking agent or binder, filtering solution, drying, compressing and heat treating.
  • 专利号:   KR2023039353-A, CN115807355-A
  • 发明人:   SHIN H, KIM H, PARK J H, KU K, GUO E, PARK J, JIN H
  • 专利权人:   UNIV JEONJU OFFICE IND COOP, UNIV JEONJU INST IND ACAD COOP
  • 国际专利分类:   D21H011/12, D21H013/50, D21H017/00, D21H017/63, D21H021/14, D21H025/04, H05K009/00, D21F013/00, D21H011/00, D21H011/14, D21H027/00
  • 专利详细信息:   KR2023039353-A 21 Mar 2023 D21H-021/14 202326 Pages: 8
  • 申请详细信息:   KR2023039353-A KR122565 14 Sep 2021
  • 优先权号:   KR122565

▎ 摘  要

NOVELTY - Producing carbon paper comprises (1) mixing cellulose fibers and graphene in water according to a predetermined ratio and adding a crosslinking agent or binder, (2) filtering cellulose fiber/graphene solution obtained in step (1) or floating on paper, (3) drying and compressing cellulose fiber/graphene paper, and (4) heat treating and carbonizing cellulose fiber/graphene paper. USE - The carbon paper is useful for manufacturing electromagnetic wave shielding sheet (claimed) for smartphones, wearables, the Internet of Things, and automobiles. ADVANTAGE - The carbon paper: has good flexibility and electrical conductivity; prevents malfunctions of electronic devices and signal quality deterioration; and is light weight and environmentally friendly. The method is simple and does not use metal material.