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A flexible and stretchable transparent copper clad laminate and its preparation method

A copper-clad laminate and transparent technology, which is applied in the field of transparent copper-clad laminate and its preparation, can solve the problems of limited application fields and lack of stretchability, and achieve good flexibility and stretchability, good application market and development prospects, and convenient peeling effect

Active Publication Date: 2021-09-28
WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that there are relatively typical defects in the existing technology in the field of copper clad laminates, that is, they do not have stretchability, which limits their application fields and needs to be improved.

Method used

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  • A flexible and stretchable transparent copper clad laminate and its preparation method
  • A flexible and stretchable transparent copper clad laminate and its preparation method
  • A flexible and stretchable transparent copper clad laminate and its preparation method

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Embodiment

[0059] A flexible and stretchable transparent copper-clad laminate sequentially includes a supporting substrate, a separation layer, a peeling layer, a base layer, an adhesive layer, a patterned metal layer and a patterned insulating layer. When in use, the release layer, base layer, adhesive layer, patterned metal layer, and patterned insulating layer are peeled off using the separation layer as a transition, and the patterned insulating layer is attached to the skin surface during use.

[0060] Such as figure 1 Shown, the preparation method of this transparent copper-clad laminate comprises the following steps:

[0061] S0, choose a hard sheet as the supporting substrate, and the supporting substrate can be used to provide a certain rigidity and hardness, which can be a glass sheet, a metal sheet or a plastic sheet, etc., and glass sheet is preferred in this embodiment;

[0062] S1, preparation of the separation layer: Spin-coat 10:1 PDMS on the support substrate (the ratio...

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Abstract

The invention discloses a flexible and stretchable transparent copper-clad laminate, which sequentially includes a supporting substrate; a separation layer made of at least one of PE, PVC and PDMS; and a peeling layer made of at least one of PVA and PE. Made; base layer, made of PDMS, the ratio of PDMS monomer to curing agent is 1‑30:1; adhesion layer, made of PDMS, the ratio of PDMS monomer to curing agent is 20‑80:1; metal The layer is arranged in the shape of a circuit board; when in use, the peeling layer, the base layer, the adhesive layer and the metal layer are peeled off and used with the separation layer as a transition. The material of the release layer is arranged so that there is a certain degree of stickiness between the release layer and the separation layer and facilitates the separation of the two. The viscosity of the adhesive layer is greater than that of the base layer, which can firmly adhere the base layer and the metal layer to both sides of the adhesive layer. At the same time, the flexibility of the base layer is greater than that of the adhesive layer. The copper clad laminate has good transparency and has good flexibility and stretchability.

Description

technical field [0001] The invention relates to the technical field of copper-clad laminates, more specifically, it relates to a flexible and stretchable transparent copper-clad laminate and a preparation method thereof. Background technique [0002] Flexible copper clad laminate (FCCL) has the characteristics of lightness, thinness and flexibility, and is the processing raw material for flexible circuit board (FPC). It contains at least two materials, one is an insulating substrate, such as polyimide (PI) film, liquid crystal polymer (LCP) film, etc.; the other is a metal conductor foil, mainly copper foil or silver foil gold foil Wait. [0003] The base material of the flexible copper clad laminate is generally polyimide material according to the material. By modifying the polyimide material in various ways, or adding specific metal components and performing high-temperature heating treatment, the polyimide material can be improved. Imide film properties, especially to i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02H05K1/05H05K3/00H05K3/22
CPCH05K1/02H05K1/056H05K3/00H05K3/0082H05K3/227
Inventor 王毅徐长顺张庆文刘啸虎
Owner WENZHOU MEDICAL UNIV
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