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Transfer printing method of multilayer graphene flexible printed circuit board and graphene flexible printed circuit board set

A multi-layer graphene and graphene technology, applied in chemical instruments and methods, epoxy glue, adhesive types, etc., can solve problems such as unfavorable commercial applications, poor performance, and damaged electrical properties of graphene films

Active Publication Date: 2019-05-14
MICROCOSM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, when the dry transfer method transfers the graphene film composed of multi-layer graphene, it is still unable to transfer the graphene film from the metal substrate to the flexible substrate.
The graphene film after transfer is often damaged and has poor electrical properties, which is not conducive to commercial applications and needs to be improved

Method used

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  • Transfer printing method of multilayer graphene flexible printed circuit board and graphene flexible printed circuit board set
  • Transfer printing method of multilayer graphene flexible printed circuit board and graphene flexible printed circuit board set
  • Transfer printing method of multilayer graphene flexible printed circuit board and graphene flexible printed circuit board set

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] refer to Figures 1 to 4, an embodiment 1 of the present invention, comprising a preparation step S1, a bonding step S2, a redox step S3, and a peeling step S4.

[0042]

[0043] A transfer unit 1 , a flexible board unit 2 , and a roll-to-roll device 3 are provided.

[0044] The transfer unit 1 includes a foil-shaped metal substrate 11 mainly composed of copper, and a graphene film 12 disposed on the metal substrate 11 . The graphene film 12 has several graphene layers 121 stacked on the metal substrate 11 . The flexible board unit 2 includes a flexible substrate 21 and an adhesive layer 22 disposed on the flexible substrate 21 . The adhesive force between the adhesive layer 22 and the metal substrate 11 is measured to be 0.25 kgf / cm. Next, the preparation method of the transfer unit 1 and the flexible board unit 2 , the structure of the roll-to-roll equipment 3 , and the test method of the adhesion between the adhesive layer 22 and the metal substrate 11 will be d...

Embodiment 2～4

[0072] Embodiments 2-4 are similar to this embodiment 1, the difference is:

Embodiment 2

[0073] Embodiment 2 is to get this polyimide colloid of 100g (containing polyimide 50g), and this epoxy resin of 20g is mixed into this bonding colloid. Therefore, if the total weight of the polyimide is 100 parts by weight, the epoxy resin is 40 parts by weight. The adhesive force between the adhesive layer 22 formed with the aforementioned adhesive colloid and the metal substrate 11 is 0.4 kgf / cm.

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Abstract

The invention relates to a transfer printing method of a multilayer graphene flexible printed circuit board and a graphene flexible printed circuit board set. The transfer printing method includes thesteps of A, providing a transfer printing unit and a flexible printed circuit board unit, wherein the transfer printing unit mainly comprises a metal base material and a graphene film, the metal basematerial is formed by transition metal, the graphene film is arranged on the metal base material and is provided with multiple graphene layers stacked on the metal base material; the flexible printedcircuit board unit comprises a flexible substrate and an adhering layer arranged on the flexible substrate, and the adhesion between the adhering layer and the metal base material is above 0.2kgf / cm;B, fitting the adhering layer and the graphene film; C, sequentially subjecting the metal base material to oxidization and reduction; D, stripping the metal base material. By the transfer printing method, the graphene film can be completely transferred from the metal base material to the flexible printed circuit board unit.

Description

technical field [0001] The invention relates to an application method and a finished product of graphene and a soft board, in particular to a transfer printing method of a multilayer graphene soft board and a graphene soft board group. Background technique [0002] Graphene is a two-dimensional material composed of carbon atoms. Because of its excellent electrical, mechanical, thermal and optical properties, the preparation and related applications of graphene have become a research hotspot. [0003] There are quite a few methods for preparing graphene, including mechanical exfoliation, epitaxial growth, and chemical vapor deposition. The mechanical exfoliation method is a method of simply exfoliating graphite materials by mechanical force to obtain graphene. The method is quite simple but not suitable for large-scale production. Although the epitaxial growth method can produce high-quality graphene, it also has the disadvantage that it is not suitable for large-scale produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194C09J179/08C09J163/00C08G73/10
Inventor 苏清源张媛婷赖柏宏
Owner MICROCOSM TECH
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