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Screen protecting film for electronic product

A technology for electronic products and protective films, applied in the field of shielding protective films for electronic products, can solve the problems of metal sheet or mesh weight, labor and time, human health hazards, etc. The effect of wave performance

Active Publication Date: 2015-09-02
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, metal sheets or nets widely used as shielding materials are heavy, and there is a problem that it takes labor and time to arrange them in the casing of the equipment.
In addition, metal sheets or meshes tend to have large anisotropy in the electromagnetic wave absorbing ability, that is, the tendency for the electromagnetic wave absorbing ability to decrease significantly when the incident angle of electromagnetic waves increases.
The electromagnetic waves released by electronic products will bring electromagnetic interference to other electronic devices around them, making them work abnormally; at the same time, they will also cause harm to human health

Method used

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  • Screen protecting film for electronic product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0033] Embodiments 1 to 4: A shielding protective film for electronic products, comprising a metal layer 2, a wave-absorbing layer 3 and a release material layer 4; a first adhesive layer 5 is arranged between the PET insulating layer 1 and the metal layer 2, A second adhesive layer 6 is provided between the metal layer 2 and the wave-absorbing layer 3; a third adhesive layer 7 and a polypropylene film layer 5 are sequentially provided between the wave-absorbing layer 3 and the release material layer 4 And the fourth adhesive layer 8 ; the surface of the fourth adhesive layer 8 in contact with the release material layer 4 has several bumps 1 .

[0034] The components and contents of the absorbing layer 3 are as shown in Table 1:

[0035] Table 1

[0036] Example 1 Example 2 Example 3 Example 4 100 parts of absorbing powder 100 copies 100 copies 100 copies 100 copies 25~35 parts of butyl acrylate 25 copies 32 copies 30 copies 28 cop...

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Abstract

The invention discloses a screen protecting film for an electronic product. The screen protecting film comprises a PET insulation layer, a metal layer, a wave absorbing layer and a mold release material layer, wherein a first adhesive layer is arranged between the PET insulation layer and the metal layer; a second adhesive layer is arranged between the metal layer and the wave absorbing layer; the wave absorbing layer comprises the following constituents: 100 parts of wave absorbing powder, 25 to 35 parts of butyl acrylate, 12 to 15 parts of acrylic acid, 20 to 35 parts of iso-octyl acrylate, 10 to 30 parts of methyl methacrylate, 1 to 3 parts of vinyl acetate, 0.1 to 1 part of 2 hydroxyethyl methacrylate, 0.5 to 2 parts of sodium polyacrylate, and 0.4 to 1 part of methyl ethyl ketone peroxide; the wave absorbing powder comprises the following constituents: 100 parts of barium ferrite powder, 18 to 25 parts of nickel sesquioxide, 8 to 12 parts of nano-graphite powder, 8 to 12 parts of cobaltous chloride, 60 to 70 parts of unsaturated polyester and 40 to 50 parts of sodium dodecyl benzene sulfonate. The screen protecting film has the advantages that the wave absorbing property of a protecting adhesive tape can be improved remarkably; over centralization of heat is avoided; convenience is brought for heat diffusion.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, in particular to a shielding protective film for electronic products. Background technique [0002] At present, metal sheets or nets widely used as shielding materials are heavy, and there is a problem that it takes labor and time to arrange them in the casing of the equipment. Furthermore, a metal sheet or mesh tends to have large anisotropy in electromagnetic wave absorbing ability, that is, the tendency for electromagnetic wave absorbing ability to significantly decrease as the incident angle of electromagnetic waves increases. The electromagnetic waves released by electronic products will bring electromagnetic interference to other electronic devices around them, making them work abnormally; at the same time, they will also cause harm to human health. At present, miniaturization and high integration are the mainstream trends in the development of electronic products, and the int...

Claims

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Application Information

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IPC IPC(8): B32B15/082B32B27/30B32B27/20C08L67/06C08L33/08C08K13/02C08K3/04C08K5/42C08K3/16C08K3/22
CPCB32B15/082B32B27/20B32B27/30C08L67/06B32B27/308B32B2307/20B32B2307/212B32B2571/00C08K2201/011C08L33/08C08K13/02C08K3/04C08K5/42C08K3/16C08K2003/2293
Inventor 金闯梁豪
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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