• 专利标题:   Carbon heat sink comprises graphene layer and aluminum foil layer that are connected by conductive adhesive, where graphene layer is ionic liquid modified graphene layer, and contact surface between foil layer and adhesive is rough surface.
  • 专利号:   CN111818764-A
  • 发明人:   SHEN J
  • 专利权人:   JIANGSU ZHONGSHANG CARBON INST CO LTD
  • 国际专利分类:   C01B032/194, C09J011/04, C09J163/00, H05K007/20
  • 专利详细信息:   CN111818764-A 23 Oct 2020 H05K-007/20 202095 Pages: 8 Chinese
  • 申请详细信息:   CN111818764-A CN10692162 17 Jul 2020
  • 优先权号:   CN10692162

▎ 摘  要

NOVELTY - Carbon heat sink comprises a graphene layer and an aluminum foil layer that are connected by a thermally conductive adhesive, where the graphene layer is an ionic liquid modified graphene layer, and the contact surface between the aluminum foil layer and thermally conductive adhesive is a rough surface. USE - The carbon heat sink is useful in sophisticated electronic products with high heat dissipation requirement. ADVANTAGE - The sink improves the longitudinal thermal conductivity of the graphene layer, increases the contact area between the aluminum foil layer and thermal conductive adhesive, improves the bonding strength between the aluminum foil layer and thermally conductive adhesive, and improves the overall heat dissipation efficiency of the sink. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the sink, involving (a) preparing the ionic liquid modified graphene layer, (b) preparing the conductive adhesive, and (c) coating a layer of thermally conductive adhesive on the rough surface of the aluminum foil layer, and covering the ionic liquid modified graphene layer and compositing on a rewinder.