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Conductive Paper Containing Nickel Plated Pulp Fiber for Electric Field Shielding

机译：含镍浆粕纤维的导电纸，用于电场屏蔽

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摘要

A conductive paper for shielding electromagnetic waves was produced by mixing pulp fibers with plated pulp fibers, obtained by subjecting disintegrated pulp fibers to electroless nickel plating to impart conductivity to the surfaces, and subjecting the resultant mixture to papermaking. The plated pulp fibers have surfaces covered with metal, and hence, the hydrogen bonds that pulp fibers generally possess do not contribute to the bonding between plated pulp fibers. For this reason, it has conventionally been difficult to manufacture paper from plated pulp fibers. To overcome this difficulty, a conductive paper was prepared from a mixture of plated and unplated pulp fibers. The conductivity of the formed conductive paper was improved by increasing the plated pulp fiber ratio. As a result, both the surface and volume conductivities increased, thus improving the shielding effectiveness against the electric field components of electromagnetic waves. Furthermore, to improve the electromagnetic shielding performance, conductive layers containing plated pulp fibers and insulating layers containing only pulp fibers were stacked on one another to form a multilayer conductive paper. In conductive paper with stacked conductive layers, increasing the number of conductive layers by two increased the electromagnetic shielding effect from 3 dB to 24 dB. A conductive paper with three conductive layers achieved a general electromagnetic shielding effect of about 30 dB at frequencies of 10 MHz to 1,000 MHz.
机译：通过将纸浆纤维与电镀纸浆纤维混合来制备用于屏蔽电磁波的导电纸，该纸浆是通过对分解的纸浆纤维进行化学镀镍以赋予表面导电性并将所得混合物进行造纸而获得的。电镀纸浆纤维的表面覆盖有金属，因此，纸浆纤维通常具有的氢键不会有助于电镀纸浆纤维之​​间的结合。因此，传统上难以由电镀纸浆纤维制造纸。为了克服该困难，由镀覆纸浆纤维和未镀覆纸浆纤维的混合物制备了导电纸。通过增加电镀纸浆纤维比率，可以改善所形成的导电纸的导电性。结果，表面电导率和体积电导率均增加，从而提高了对电磁波电场分量的屏蔽效果。此外，为了提高电磁屏蔽性能，将包含镀覆纸浆纤维的导电层和仅包含纸浆纤维的绝缘层彼此堆叠以形成多层导电纸。在具有堆叠的导电层的导电纸中，将导电层的数量增加两倍，可使电磁屏蔽效果从3 dB增加到24 dB。具有三个导电层的导电纸在10 MHz至1,000 MHz的频率下可获得约30 dB的一般电磁屏蔽效果。

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  • 来源
    《繊維学会誌》 |2012年第7期|p.184-191|共8页
  • 作者

    Takeshi Ueno; Shohta Takemura; Masahiro Shimada; Takayuki Okayama;

  • 作者单位

    Tokyo Metropolitan Industrial Technology Research Institute,3-6-1, Azuma-cho, Akishima, Tokyo 196-0033, Japan,Graduate School of Agriculture, Tokyo University of Agriculture and Technology,3-5-8, Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;

    Tokyo Metropolitan Industrial Technology Research Institute,3-6-1, Azuma-cho, Akishima, Tokyo 196-0033, Japan;

    Tokyo Metropolitan Industrial Technology Research Institute,3-6-1, Azuma-cho, Akishima, Tokyo 196-0033, Japan;

    Graduate School of Agriculture, Tokyo University of Agriculture and Technology,3-5-8, Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;

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