Micro-particle sound-absorbing board and preparation method thereof

Micro-particle sound-absorbing board and preparation method thereof

  • CN 104,108,902 A
  • Filed: 07/22/2014
  • Published: 10/22/2014
  • Est. Priority Date: 07/22/2014
  • Status: Active Application
First Claim
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1. a particulate acoustic board, is characterized in that:

  • comprise binding agent and sound absorption particle, described sound absorption particle outside surface covers a layer binder, and the dihedral coefficient that covers the sound absorption particle after binding agent is less than 1.3;

    Described sound absorption particle comprises skeleton particle and filler particles, and skeleton particle forms acoustic board skeleton, and the hole that filler particles enters between skeleton particle forms sound absorption gap.

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