Electret and electrostatic induction conversion device

Electret and electrostatic induction conversion device

  • CN 101,977,763 A
  • Filed: 03/25/2009
  • Published: 02/16/2011
  • Est. Priority Date: 03/27/2008
  • Status: Active Application
First Claim
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1. electret, it is characterized in that, have by to comprise relative dielectric constant be the layer (A) of 1.8~

  • 3.0 macromolecular compound (a) and comprise relative dielectric constant than the high macromolecular compound (b) of described macromolecular compound (a) or direct stacked duplexer that gets of layer (B) of inorganic matter (c)The difference of the relative dielectric constant of the relative dielectric constant of described macromolecular compound (b) or inorganic matter (c) and described macromolecular compound (a) is more than 0.3,The outermost surface of the opposition side of iunjected charge one side when described layer (A) is configured in and forms electret to described duplexer iunjected charge,The thickness of described layer (B) is more than 1 μ

    m.

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