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Wave-absorbing hang ceiling for electromagnetic protection and preparation method thereof

An electromagnetic protection and ceiling technology, applied in chemical instruments and methods, synthetic resin layered products, covering/lining, etc., can solve problems such as electromagnetic pollution in indoor space, achieve efficient and stable absorption mechanism, reduce specific gravity, and low prices.

Inactive Publication Date: 2011-08-31
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the problem that existing materials cannot effectively solve the problem of electromagnetic pollution in indoor spaces, the present invention provides a wave-absorbing ceiling for electromagnetic protection and its preparation method

Method used

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  • Wave-absorbing hang ceiling for electromagnetic protection and preparation method thereof
  • Wave-absorbing hang ceiling for electromagnetic protection and preparation method thereof
  • Wave-absorbing hang ceiling for electromagnetic protection and preparation method thereof

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Embodiment Construction

[0024] The preparation method of the present invention is described in detail below in conjunction with specific embodiments:

[0025] 1. Preparation of Surface Layer

[0026] Select polyvinyl chloride as the substrate 11, and other similar lightweight plastic plates can also be used to replace; select nano-carbon black, carbonyl iron as the electromagnetic wave absorber, and epoxy resin, absolute alcohol and epoxy curing agent in a mass ratio of 10: The ratio of 1:2 is mixed and stirred evenly as a binder. Add nano-carbon black into the binder according to 36% of the volume of the epoxy resin and stir evenly, then evenly coat the mixture on the polyvinyl chloride substrate 11, and cure and form within 24 hours to obtain the nano-carbon black wave-absorbing coating 12. The carbonyl iron absorbing coating 13 was prepared on another polyvinyl chloride substrate by the same method, except that the nano-carbon black was replaced with the same volume of carbonyl iron.

[0027] 2....

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PUM

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Abstract

The invention relates to a wave-absorbing hang ceiling for electromagnetic protection and a preparation method thereof. The wave-absorbing hang ceiling comprises a thin cavity formed by bonding plastic plates, wherein a wave-absorbing coating is coated on the inner surface of the thin cavity; resonant hollow wave penetrating balls are filled into the thin cavity; and a nanometer carbon black coating is coated on the outer surfaces of the hollow wave penetrating balls uniformly. The wave-absorbing hang ceiling has an efficient and stable absorption mechanism, and is low in cost and suitable to be used in ordinary buildings widely, and specific gravity is reduced greatly.

Description

technical field [0001] The invention belongs to the technical field of building materials and electromagnetic protection, and relates to a building decoration material for electromagnetic protection and a preparation method thereof. Background technique [0002] With the rapid development of social information and the deteriorating electromagnetic environment in urban space, people pay more and more attention to electromagnetic protection. At present, most electromagnetic protection products on the market are mainly based on reflective shielding materials, which can only limit the transmission range of electromagnetic waves but cannot fundamentally eliminate electromagnetic waves, which will easily cause secondary pollution. Most of the absorbing materials are cones and rubber-based patches for anechoic chambers. The cones for anechoic chambers are huge, and the effective wave-absorbing frequency range of rubber-based patches is narrow, and their adaptability is poor. In add...

Claims

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Application Information

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IPC IPC(8): E04F13/075B32B5/16B32B9/04B32B27/00
Inventor 段玉平李宝毅吴广利刘顺华
Owner DALIAN UNIV OF TECH