Graphene composite thin film material and preparation method thereof

A technology of graphene composite and thin film materials, which is applied in the direction of chemical instruments and methods, adhesive types, synthetic resin layered products, etc., can solve the problems that do not meet the requirements of OLED packaging materials, achieve great practical and promotional value, and solve The effect of poor water and oxygen barrier properties and excellent barrier properties

Active Publication Date: 2014-04-02
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above disclosed method covers a variety of polymers and covers a variety of GO or RGO/polymer composite molding technologies, but the water oxygen transm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Preparation of light-curing adhesive: Add 1g of maleic anhydride, 3g of hydroxyethyl methacrylate, 0.5g of 2,4,6-trimethylbenzoyl-diphenylphosphorus oxide to a 500mL container, 2 -Hydroxy-2-methyl-1-phenyl-1-acetone 1g, norbornyl methacrylate 10g, lauryl methacrylate 14.5g, stir to dissolve the solid, then add polyurethane acrylate resin (soft segment is poly Butadiene) 70g, after stirring evenly, remove the bubbles for later use;

[0035] (2) Large-area single-layer graphene grown by vapor deposition method, take one layer for use;

[0036] (3) Remove the protective film on the upper and lower surfaces of the single-layer graphene layer, apply a light-curing adhesive, and press the activated polymer transparent film on the coated light-curing adhesive. On the mixture, after ensuring that there are no bubbles, cure the adhesive layer. The transparent polymer film used is a transparent PP film. The curing conditions of the light curing adhesive are 1000W medium pressure ...

Embodiment 2

[0039] (1) Preparation of light-curing adhesive: Add 3.5g of maleic anhydride, 2g of hydroxyethyl acrylate, 3g of hydroxyethyl methacrylate, 2,4,6-trimethylbenzoyl-diphenyl into a 500mL container. Phosphorus oxide 0.5g, 2-hydroxy-2-cyclohexyl-1-phenyl-1-acetone 1g, phenoxyethyl acrylate 8g, isodecyl acrylate 22g, stir to dissolve the solid, then add the polyurethane acrylate resin (The soft section is hydrogenated polybutadiene) 60g, after stirring evenly, remove the bubbles for later use;

[0040] (2) Large-area single-layer graphene grown by vapor deposition method, take two layers for use;

[0041] (3) First peel off the protective film on one side of the graphene layer, apply the light-curing adhesive, and then peel off the other protective film on the side of the graphene layer, and press this side against the coating. After ensuring that there are no bubbles on the light-curing adhesive, cure the adhesive layer. The curing condition of the light-curing adhesive is 1000W medi...

Embodiment 3

[0045] (1) Preparation of light-curing adhesive: add 0.5g maleic anhydride, 3g hydroxyethyl methacrylate, 1g 2,4,6-trimethylbenzoyl-diphenylphosphorus oxide, and 2 -Hydroxy-2-cyclohexyl-1-phenyl-1-acetone 1g, phenoxyethyl acrylate 18g, lauryl methacrylate 26.5g, 2(2-ethoxyethoxy)ethyl acrylate 5g , Stir to dissolve the solid, then add 45g of polyurethane acrylate resin (soft segment is polyisoprene and polybutadiene), stir well and remove bubbles for later use;

[0046] (2) Large-area single-layer graphene grown by vapor deposition method, take three layers for use;

[0047] (3) First peel off the protective film on one side of the graphene layer, apply the light-curing adhesive, and then peel off the other protective film on the side of the graphene layer, and press this side against the coating. After ensuring that there are no bubbles on the light-curing adhesive, cure the adhesive layer. The curing condition of the light-curing adhesive is 1000W medium pressure mercury lamp, 2...

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Abstract

The invention relates to a graphene composite thin film material and a preparation method thereof. The graphene composite thin film material is structurally characterized in that at least one graphene layer is arranged between two high molecular transparent thin films, and the high molecular transparent thin films are connected with the graphene layers and the adjacent graphene layers are connected with each other through a curing adhesive or a thermocuring adhesive. According to the invention, the defects on performance of the prepared graphene barrier composite materials are overcome in the prior art, and a nano composite thin film with high barrier property and high transmittance is prepared. The graphene high molecular composite thin film material prepared by the invention achieves both flexibility and high transparency, and the transmittance in a visible light area reaches up to over 85%. In addition, the composite thin film has excellent barrier property on water vapor and oxygen, solves the problem that water and oxygen barrier property of the prepared graphene/high molecular composite material in the prior art is poor, can satisfy the application demands on OLED (Organic Light Emitting Diode) apparatus encapsulation, medical and food packaging and the like, and has huge practical and promotional values.

Description

Technical field [0001] The invention relates to a graphene composite film material and a preparation method thereof, and belongs to the technical field of composite material design and preparation. Background technique [0002] Organic light emitting diode (OLED) has the advantages of self-luminescence, wide viewing angle, ultra-fast response, high efficiency, low voltage, ultra-thin device and large size, etc., and is considered to be a promising next-generation display and Lighting technology. Flexibility is the future development direction of electronic devices, and it is also a unique advantage of OLED. The organic material used in OLED has good flexibility. It can be fabricated on an impact-resistant, lightweight and cheap flexible transparent plastic substrate to realize flexible device manufacturing. [0003] Transparent plastic films that can be used as flexible substrates, such as polyethylene (PE), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), etc., ...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B9/04B32B7/12C09J175/14C09J4/02C09J4/06
Inventor 姜浩李朝龙史浩飞汤林龙高天鹏杜春雷
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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