利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN108084908B 吸波片 有权

吸波片
摘要：
本发明公开一种高稳定性吸波片，包括作为反射层的石墨片、吸波层和离型材料层；所述吸波层由以下组分组成：吸波粉体、丙烯酸丁酯、丙烯酸、丙烯酸异辛酯、甲基丙烯酸甲酯、醋酸乙烯、甲基丙烯酸‑2‑羟乙酯、聚丙烯酸钠、过氧化甲乙酮；所述吸波粉体由以下组分组成：BaFe12O19、三氧化二镍、纳米石墨粉、萘酸钴、不饱和聚酯、丙烯酸类流平剂；所述吸波粉体中BaFe12O19、三氧化二镍、纳米石墨粉和萘酸钴按照10：4：1：2重量份比例混合。本发明吸波贴片在2~10GHz电磁波的衰减率达到88%，既有利于聚合物胶粘，也有利于将电磁波产生的热量扩撒。
摘要（英）：

Disclosed is a wave absorbing patch for electromagnetic shielding, comprising a graphite sheet taken as a reflecting layer, a wave absorbing layer, and a release material layer, a first adhesive layer being arranged between the graphite sheet and the wave absorbing layer; a second adhesive layer is arranged between the wave absorbing layer and the release material layer; the wave absorbing layer is prepared from the following components: wave absorbing powder, butyl acrylate, acrylic acid, iso-octyl acrylate, methyl methacrylate, vinyl acetate, methacrylic acid-2-hydroxyethyl acrylate, sodium polyacrylate, and methyl ethyl ketone peroxide; and the wave absorbing powder is prepared from the following components: BaFe12O19, Ni2O3, nano-graphite powder, cobalt naphtenate, unsaturated polyester and acrylic acids flatting agents. The wave absorbing patch of the present invention has an attenuation rate reaching up to 88% in electromagnetic waves of 2 to 10 GHz, and is not only beneficial to gluing of a polymer, but also evenly disperses mixed powder into the polymer, thereby guaranteeing the reliability of electromagnetic property.

公开/授权文献
0/0