Electromagnetic shielding adhesive tape

An electromagnetic shielding and electromagnetic shielding layer technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problem of poor electromagnetic shielding effect, etc., and achieve good electromagnetic shielding effect, no wrinkles, and effective environmental sealing. Effect

Inactive Publication Date: 2013-04-03
SUZHOU JINHE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this invention only utilizes the electromagnetic wave shielding effect of the conductive metal layer, and the electromagnetic shielding efficiency is up to 50dB, and the electromagnetic shielding effect is not good.

Method used

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  • Electromagnetic shielding adhesive tape

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] Attached figure 1 It is an electromagnetic shielding tape according to the present invention, comprising an electromagnetic shielding layer, a resin film layer 1 covering one side of the electromagnetic shielding layer, and the electromagnetic shielding layer is composed of a conductive metal layer 2 and a wave-absorbing adhesive with adhesive properties. The layer 3 is composed of, and the wave-absorbing layer 3 is glued to the side of the conductive metal layer 2 opposite to the resin film layer 1.

[0024] The wave absorbing layer 3 is composited by an adhesive 30 and a wave absorbing body 31 made of a wave absorbing material.

[0025] Preferably, the wave absorbing material is a non-woven fabric wave absorbing material, the adhesive 30 is an acrylic adhesive, and the thickness of the wave absorbing layer 3 after the two is combined is 0.025 m...

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Abstract

The invention discloses an electromagnetic shielding adhesive tape which comprises an electromagnetic shielding layer and a resin film layer covering one side of the electromagnetic shielding layer. The electromagnetic shielding layer is formed by a conducting metal layer and a wave adsorption layer with the gluing characteristics; and the wave adsorption layer is bonded to one side of the conducting metal layer, which is opposite to the resin film layer. According to the electromagnetic shielding layer of the electromagnetic shielding adhesive tape, one side of the conducting metal layer is bonded with the wave adsorption layer; multilayer shielding is realized for a multilayer structure formed by a material with electric conductivity and magnetic conductivity; in the frequency range of 1kHz to 100GHz, the lowest electromagnetic shielding effectiveness is 71db; the anti-electromagnetic attenuation rate can reach 99 percent; an electromagnetic shielding effect is good; and the electromagnetic shielding adhesive tape is universal for electromagnetic shielding of a high frequency electric field and a low frequency magnetic field.

Description

Technical field [0001] The invention relates to an electromagnetic shielding tape, which belongs to the technical field of electromagnetic shielding of liquid crystal display modules, and is mainly used for electromagnetic shielding of electronic products such as notebook computers and tablet computers. Background technique [0002] The rapid development of various electronic products (such as digital computers) in commercial and household use has greatly increased the possibility of electromagnetic interference between electronic products. To solve this problem, some countries have established emission limits for electronic products, and manufacturers have also Looking for ways to shield these rays. With the development of electromagnetic compatibility, electromagnetic shielding technology has become more and more widely used. [0003] Electromagnetic shielding tape has been widely used in electronic products, especially consumer electronic products for electromagnetic shielding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02
Inventor 谭克杰汪洋
Owner SUZHOU JINHE NEW MATERIAL
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