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A kind of colorless transparent polyimide composite film and preparation method thereof

A transparent polyimide, polyimide technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, coating, etc., can solve the problem that the barrier property and hardness of polyimide film do not meet the actual use requirements. , to achieve excellent water vapor barrier performance, reduce damage, and prolong service life.

Active Publication Date: 2021-06-15
ZHEJIANG DAOMING OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a new colorless and transparent polyimide composite film and its preparation method aiming at the barrier and hardness of the polyimide film in the prior art not meeting the requirements of actual use.

Method used

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  • A kind of colorless transparent polyimide composite film and preparation method thereof
  • A kind of colorless transparent polyimide composite film and preparation method thereof
  • A kind of colorless transparent polyimide composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as Figure 1 to Figure 5 As shown, a colorless and transparent polyimide composite film comprises a polyimide base layer 1 and a glass surface layer 3, and an intermediate structure is formed between the glass surface layer 3 and the polyimide base layer 1 2.

[0048] Preferably, the thickness T1 of the polyimide base layer 1 is 200 μm, and the thickness T2 of the glass surface layer 3 is 60 μm.

[0049] Preferably, the intermediate structure 2 is a diffusion structure formed by interpenetration between the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 50 μm.

[0050] Preferably, the intermediate structure 2 is a staggered structure formed by interlacing the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 50 μm.

[0051] Preferably, the intermediate structure 2 is a composite structure formed by interdiffusion and interlacing between the p...

Embodiment 2

[0063] Such as Figure 1 to Figure 5 As shown, a colorless and transparent polyimide composite film comprises a polyimide base layer 1 and a glass surface layer 3, and an intermediate structure is formed between the glass surface layer 3 and the polyimide base layer 1 2.

[0064] Preferably, the thickness T1 of the polyimide base layer 1 is 5 μm, and the thickness T2 of the glass surface layer 3 is 200 nm.

[0065] Preferably, the intermediate structure 2 is a diffusion structure formed by interpenetration between the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 100 nm.

[0066] Preferably, the intermediate structure 2 is a staggered structure formed by interlacing the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 100 nm.

[0067] Preferably, the intermediate structure 2 is a composite structure formed by interdiffusion and interlacing between the ...

Embodiment 3

[0079] Such as Figure 1 to Figure 5 As shown, a colorless and transparent polyimide composite film comprises a polyimide base layer 1 and a glass surface layer 3, and an intermediate structure is formed between the glass surface layer 3 and the polyimide base layer 1 2.

[0080] Preferably, the thickness T1 of the polyimide base layer 1 is 50 μm, and the thickness T2 of the glass surface layer 3 is 2 μm.

[0081] Preferably, the intermediate structure 2 is a diffusion structure formed by interpenetration between the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 5 μm.

[0082] Preferably, the intermediate structure 2 is a staggered structure formed by interlacing the polyimide base layer 1 and the glass surface layer 3 , and the thickness t of the intermediate structure 2 is 20 μm.

[0083] Preferably, the intermediate structure 2 is a composite structure formed by interdiffusion and interlacing between the poly...

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Abstract

The invention discloses a colorless and transparent polyimide composite film and a preparation method thereof, comprising a polyimide base layer and a glass surface layer, wherein an intermediate structure is formed between the glass surface layer and the polyimide base layer . Compared with the prior art, the present invention has outstanding beneficial effects: firstly, the colorless and transparent polyimide composite film prepared by the present invention has excellent surface hardness and wear resistance similar to that of glass material, and is resistant to external It can effectively reduce the damage after the collision and wear of objects; secondly, the colorless transparent polyimide composite film has excellent moisture resistance barrier performance similar to that of glass material, which can prolong the service life of the product; finally, the colorless transparent polyimide composite film The amine composite film still maintains the excellent flexibility and foldability of the PI film, and has a broader application prospect.

Description

technical field [0001] The invention relates to the technical field of polyimide films, in particular to a colorless and transparent polyimide composite film and a preparation method thereof. Background technique [0002] Polyimide film has good photoelectric properties, mechanical properties, water vapor barrier and other characteristics, and has been widely used in electrical insulation materials, flexible copper clad laminates (FCCL), flexible OLED displays, window films, new energy and other high-tech In the industrial field, colorless transparent polyimide (CPI) is mainly used in flexible mobile phones, tablets, TVs and other smart display devices in the future, and is an indispensable key material for future flexible electronics. In the field of flexible OLED displays, the transparency and flexibility of CPI films basically meet the requirements of practical applications, but the surface hardness and water vapor barrier properties of CPI films do not meet the requireme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/06C08L79/08C08J5/18
CPCC08J7/06C08J5/18C08J2379/08Y02P70/50
Inventor 陈图强徐鸿李祥涛王宏蓝庆东胡锋
Owner ZHEJIANG DAOMING OPTOELECTRONICS TECH