公开(公告)号：US4508640A

公开(公告)日：1985-04-02

申请号：US444026

申请日：1982-11-23

申请人： Masahiro Kanda ,  Tetsuya Hatakeyama ,  Yusuke Morito

发明人： Masahiro Kanda ,  Tetsuya Hatakeyama ,  Yusuke Morito

IPC分类号： H05K9/00 ,  H01B1/06

CPC分类号： H05K9/0083

摘要： An electromagnetic wave-shielding material is disclosed. The material is comprised of one or more electromagnetic wave-shielding layers and one or more surface layers. The shielding layers are comprised of a thermoplastic resin, an aluminum or aluminum alloy and electrically conductive carbon black. The surface layers are comprised substantially of thermoplastic resin. The proportion of the carbon black and aluminum in the shielding layer are from 5 to 50% by volume and 5 to 50% by volume, respectively, provided the total proportion of the carbon black and aluminum is 10 to 60% by volume. The difference in solubility parameter between the thermoplastic resin of the surface layer and the thermoplastic resin of the shielding layer is 3.0 or less. The material has superior mechanical strength and electromagnetic wave-shielding properties.

摘要翻译： 公开了一种电磁波屏蔽材料。 该材料由一个或多个电磁波屏蔽层和一个或多个表面层组成。 屏蔽层由热塑性树脂，铝或铝合金和导电炭黑组成。 表面层基本上由热塑性树脂构成。 如果碳黑和铝的总比例为10〜60体积％，则屏蔽层中的炭黑和铝的比例分别为5〜50体积％和5〜50体积％。 表层的热塑性树脂与屏蔽层的热塑性树脂之间的溶解度参数的差为3.0以下。 该材料具有优异的机械强度和电磁波屏蔽性能。