• 专利标题:   Preparing anti-electromagnetic interference resistant graphene shielding film, comprises e.g. spin-coating magnetic graphene solution on surface of pretreated polyethylene terephthalate base film, then spin coating silver nano-wire and graphene oxide solutions, immersing coated film, and drying.
  • 专利号:   CN114773654-A, CN114773654-B
  • 发明人:   LIU Y, LIU F, BIAN J, DENG H, WANG W, WANG L, SONG X, DAI S, DAI Z
  • 专利权人:   QISHENG SHIDAI GUANGZHOU TECHNOLOGY CO
  • 国际专利分类:   C08J007/06, C08L067/02, C09D001/00, C09D007/61, C09D007/63, C09D007/65
  • 专利详细信息:   CN114773654-A 22 Jul 2022 C08J-007/06 202283 Chinese
  • 申请详细信息:   CN114773654-A CN10491132 07 May 2022
  • 优先权号:   CN10491132

▎ 摘  要

NOVELTY - Preparing anti-electromagnetic interference resistant graphene shielding film, comprises (i) taking polyethylene terephthalate as base film, and subjecting to corona treatment to obtain pretreated base film, and (ii) spin-coating magnetic graphene solution on surface of pretreated base film for first treatment, spin coating silver nano-wire solution for second treatment, spin-coating graphene oxide solution for third treatment, cycling first treatment to third treatment for 2-4 times, then immersing in acetone solution, washing and drying to obtain graphene shielding film. USE - The method is useful for preparing anti-electromagnetic interference resistant graphene shielding film. ADVANTAGE - The anti-electromagnetic interference resistant graphene shielding film: adopts layer-by-layer coating of magnetic graphene solution, silver nano-wire solution and graphene oxide solution which enhances dispersion effect, and electromagnetic shielding resistance and mechanical properties on the basis of ensuring that the light transmittance is greater than 80%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for anti-electromagnetic interference resistant graphene shielding film prepared by above preparation, where the graphene shielding film sequentially includes polyethylene terephthalate, magnetic graphene layer, silver nano-wire layer and graphene oxide layer.