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Composite film with heat conducting, wave absorbing and shielding three-in-one function and preparation method of composite film

A composite thin film, three-in-one technology, applied in radiation-absorbing coatings, devices for coating liquid on the surface, coatings, etc., can solve the problems of poor thermal conductivity and heat dissipation, poor electromagnetic shielding effect, etc., and achieve structure and composition Reasonable, improve the insulation performance, the effect of reasonable composition

Active Publication Date: 2019-04-02
苏州铂韬新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The composite film with three-in-one functions of heat conduction, wave absorption and shielding described in the present invention has reasonable structure and composition, and the film material prepared by composite design of carbon-coated metal and wave-absorbing layer has multiple functions of heat conduction and heat dissipation, electromagnetic wave absorption and electromagnetic shielding, and can be applied In a variety of working environments, it solves the problems of poor electromagnetic shielding effect and poor heat conduction and heat dissipation performance in the prior art

Method used

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  • Composite film with heat conducting, wave absorbing and shielding three-in-one function and preparation method of composite film
  • Composite film with heat conducting, wave absorbing and shielding three-in-one function and preparation method of composite film

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Embodiment 1

[0045] Such as figure 1 A composite film with three-in-one functions of heat conduction, wave absorption and shielding as shown, comprises a metal layer 1, a wave absorbing layer 2 and a carbon-coated layer 3, the two sides of the metal layer 1 are respectively provided with a carbon-coated layer 3, and the first carbon-coated layer The other side of 3 is also provided with a wave-absorbing layer 2; said wave-absorbing layer 2 includes the following components in terms of weight components: 60 parts of Sendust alloy micropowder, 10 parts of acrylic resin, high-carbon alcohol fatty acid ester compound 1 1 part of polyoxyethylene fatty alcohol ether, 1 part of homopolymer of methacrylic acid, 1 part of polyether polyester modified organosiloxane, 1 part of benzoyl peroxide, 1 part of diethylene glycol monoethyl ether Parts, 5 parts of nano aluminum oxide, 100 parts of dimethylacetamide.

[0046] In addition, the carbon-coated layer 3 includes the following components by weight:...

Embodiment 2

[0063] Such as figure 1 A composite film with three-in-one functions of heat conduction, wave absorption and shielding as shown, comprises a metal layer 1, a wave absorbing layer 2 and a carbon-coated layer 3, the two sides of the metal layer 1 are respectively provided with a carbon-coated layer 3, and the first carbon-coated layer The other side of 3 is also provided with a wave-absorbing layer 2; the wave-absorbing layer 2 includes the following components in terms of weight components: 100 parts of FeCuSiBCV alloy powder, 30 parts of melamine-formaldehyde resin, polyoxyethylene polyoxypropylene pentaerythritol 5 parts of ether, 5 parts of phosphate ester, 5 parts of hydroxyethyl cellulose, 5 parts of polydimethylsiloxane, 5 parts of benzoyl peroxide, 5 parts of n-butyl acetate, 10 parts of nano-nickel trioxide, Diethylene glycol monoethyl ether 150 parts.

[0064] In addition, the carbon coating layer 3 includes the following components by weight: 80 parts of graphite, 20...

Embodiment 3

[0081] Such as figure 1 A composite film with three-in-one functions of heat conduction, wave absorption and shielding as shown, comprises a metal layer 1, a wave absorbing layer 2 and a carbon-coated layer 3, the two sides of the metal layer 1 are respectively provided with a carbon-coated layer 3, and the first carbon-coated layer The other side of 3 is also provided with a wave-absorbing layer 2; said wave-absorbing layer 2 includes the following components in terms of weight components: 100 parts of FeCuSiBCo alloy micropowder, 10 parts of furan resin, polyoxyethylene polyoxypropylene pentaerythritol ether 4 Parts, 2 parts of polyoxyethylene fatty alcohol ether, 1 part of aluminum silicate, 5 parts of polydimethylsiloxane, 2 parts of diethylenetriamine, 4 parts of zinc dialkyldithiocarbamate, nanometer three 10 parts of aluminum oxide, 100 parts of dimethylformamide.

[0082] In addition, the carbon-coated layer 3 includes the following components by weight: 60 parts of g...

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Abstract

The invention provides a composite film with a heat conducting, wave absorbing and shielding three-in-one function. The composite film comprises a metal layer, a wave absorbing layer and carbon coating layers; and the carbon coating layers are arranged on the two sides of the metal layer correspondingly, and the wave absorbing layer is further arranged on the other side of one of the carbon coating layers. A film material prepared from the carbon coating layers, the metal layer and the wave absorbing layer in a compositely designed mode has the multiple functions of heat conducting and dissipation, electromagnetic wave absorbing and electromagnetic shielding, can be applied to various working environments, and the problems that in the prior art, the electromagnetic shielding effect is poor, and heat conducting and dissipation performance is poor are solved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials and the field of shielding films, and relates to a composite film with three-in-one functions of heat conduction, wave absorption and shielding and a preparation method thereof. Background technique [0002] With the development of the electronics industry, existing electronic components usually integrate high-frequency circuits, digital circuits, and analog circuits. These electronic components generate electromagnetic waves when they work, and interact with each other to generate electromagnetic interference, which not only affects the performance of electronic components, but also Will endanger human health. In order to prevent the influence of electromagnetic radiation, it is necessary to perform electromagnetic shielding on the relevant electronic components. The main structure of the electromagnetic shielding layer is one or more metal layers and a conductive adhesive layer. For ...

Claims

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Application Information

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IPC IPC(8): B05D7/00B05D7/14B05D3/02C09D133/04C09D5/32C09D161/00C09D1/00C09D7/65
CPCC09D7/65C09D133/04C09D161/00C09D1/00C09D5/32B05D3/0218B05D3/0254B05D7/14B05D7/534B05D2320/00B05D2301/00B05D2507/00B05D2518/12B05D2425/01
Inventor 袁兴平王建斌姜桂君刘慧远李建波
Owner 苏州铂韬新材料科技有限公司
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