• 专利标题:   Graphene-based electromagnetic shielding tape, comprises conductive polyethylene terephthalate film and graphene layer-modified copper foil, where graphene layer modified copper foil has two layer.
  • 专利号:   CN110418560-A, CN110418560-B
  • 发明人:   LIU B, XIE W
  • 专利权人:   JIANGXI BOC TECHNOLOGY GROUP CO LTD
  • 国际专利分类:   H05K009/00
  • 专利详细信息:   CN110418560-A 05 Nov 2019 H05K-009/00 201990 Pages: 7 Chinese
  • 申请详细信息:   CN110418560-A CN10496969 10 Jun 2019
  • 优先权号:   CN10496969

▎ 摘  要

NOVELTY - A graphene-based electromagnetic shielding tape comprises conductive polyethylene terephthalate film, graphene-based double-sided conductive tape and graphene layer-modified copper foil, where the graphene layer modified copper foil has two layers and the graphene-based double-sided conductive tape has three layers. USE - Graphene-based electromagnetic shielding tape. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a graphene-based electromagnetic shielding tape, which involves placing a graphene oxide solution in a syringe of an electrostatic spray device, using a copper foil as areceiver, applying a voltage, moving the receiver in parallel and electrostatically spraying to obtain a graphene oxide modified copper foil, placing the graphene oxide-modified copper foil under a hydrogen atmosphere, and heating and reducing to obtain a graphene layer-modified copper foil, adding a graphite powder to the polymer solution, ball milling, and ultrasonic dispersion treatment, removing the precipitate by low speed centrifugation, and removing the supernatant liquid by high speed centrifugation to obtain a graphene polymer dispersion liquid, coating the graphene polymer dispersion on the surface of the conductive polyethylene terephthalate, drying and solidifying, coating the voltage-sensitive adhesive, and drying and solidifying to obtain a graphene-based double-sided conductive tape, alternately covering the conductive polyethylene terephthalate surface with the double-sided conductive tape and the graphene layer-modified copper foil and pressure-bonding the conductive tape and the polyethylene terephthalate release film to obtain the finished product.