• 专利标题:   Preparing co-cured wave-absorbing composite material comprises paving one layer of first prepreg on forming mold, pre-compacting, paving one layer of second prepreg, covering one layer of absorbing adhesive film on the composite material substrate, covering one layer of third prepreg and curing.
  • 专利号:   CN113681942-A
  • 发明人:   GONG Y, YAN L, LI M, LV T, LI Y
  • 专利权人:   AEROSPACE SPECIAL MATERIALS PROCESSING
  • 国际专利分类:   B29L007/00, C08K003/22, C08K007/10, C08K003/04, C08K007/08, C08K003/18, C08K007/06, C08L079/08, C08L061/06, C08L075/04, C08L063/00, C08L079/04, C08J005/18, C08J005/24, B29C070/70
  • 专利详细信息:   CN113681942-A 23 Nov 2021 B29C-070/70 202205 Chinese
  • 申请详细信息:   CN113681942-A CN10972380 24 Aug 2021
  • 优先权号:   CN10972380

▎ 摘  要

NOVELTY - Method comprises (i) paving one layer of the first prepreg on the forming mold, then pre-compacting to obtain the composite material substrate, (ii) paving one layer of the second prepreg used as the reflecting layer on the composite material substrate, then pre-compacting, obtaining the composite material substrate containing the reflecting layer, (iii) covering one layer of absorbing adhesive film on the composite material substrate comprising the reflecting layer to obtain the absorbing composite material substrate, where the absorbing adhesive film comprising a wave-absorbing agent and a wave-absorbing resin, (iv) covering one layer of the third prepreg as impedance matching layer on the wave-absorbing composite material substrate, obtaining the wave-absorbing composite material substrate containing the impedance matching layer, and then curing to obtain the co-cured wave-absorbing composite material. USE - The method is useful for preparing co-cured wave-absorbing composite material. ADVANTAGE - The material has excellent mechanical property. The method is simple. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for co-cured wave-absorbing composite material, prepared by above method.