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High thermal conductivity graphite tape

A technology of high thermal conductivity graphite and tape, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of limited application range and low thermal conductivity, and achieve enhanced isotropy, improved thermal conductivity, and broadened application range Effect

Inactive Publication Date: 2017-08-11
SUZHOU JINHE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because graphite is easy to form an anisotropic layered crystal structure, its thermal conductivity in the axial direction is much lower than that in the horizontal direction, so its application range is also limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Structure: PET single-sided adhesive-graphite film-wire mesh-PET double-sided adhesive, the PET double-sided adhesive includes a PET film layer, an adhesive layer arranged on both sides of the PET film layer and an adhesive layer arranged on the other side of the adhesive layer Release film on one side. After tearing off the release film on the PET double-sided adhesive tape, it can be pasted on the surface of electronic components.

[0015] The wire mesh is a double-layer structure of copper mesh + aluminum mesh. The diameter of the copper mesh is about 20 μm, and the diameter of the aluminum mesh is about 30 μm; the distance between the wires is 30 μm.

Embodiment 2

[0017] Structure: PET double-sided adhesive tape-wire mesh-graphite film-wire mesh-PET double-sided adhesive tape. Both sides of the graphite film in this embodiment are provided with double-sided adhesive tape, so the formed composite adhesive tape can also function as double-sided adhesive tape.

[0018] The wire meshes are all copper meshes with a diameter of about 20 μm and a wire spacing of 10 μm.

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Abstract

The invention discloses a high thermal conductivity graphite tape which comprises a graphite film layer and an adhesive layer coating at least one surface of the graphite film layer, wherein a PET film layer is also glued and stacked on the other surface of the adhesive layer; and at least one layer of metal mesh is also paved between the graphite film layer and the adhesive layer. According to the high thermal conductivity graphite tape, the metal mesh layer is added, so that the isotropy is also strengthened on the basis of improving the coefficient of thermal conductivity, and the application range of the graphite tape is greatly expanded.

Description

technical field [0001] The invention relates to the field of manufacturing electronic components, in particular to a graphite adhesive tape with high thermal conductivity. Background technique [0002] High thermal conductivity graphite tape is a composite tape formed by pasting polyethylene terephthalate (PET) tape on one or both sides of a graphite film with high thermal conductivity. Its overall color is black, has excellent thermal conductivity and dimensional stability, and is easy to die-cut. [0003] The PET tape pasted on the high thermal conductivity graphite tape can be single-sided or double-sided. If it is a single-sided adhesive, this side will no longer be able to bond with other parts; if it is a double-sided adhesive, it can be bonded with other electronic components (such as radiators) after tearing off the release film. The commonly used PET tape uses acrylic pressure sensitive adhesive. [0004] However, as the volume of electronic components becomes sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02
CPCC09J2203/326C09J7/255C09J2301/122C09J2301/124C09J2301/30
Inventor 赵阳
Owner SUZHOU JINHE NEW MATERIAL