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A kind of water/oxygen barrier polymer-based composite material and its preparation method and application

An oxygen barrier polymer and composite material technology, applied in the field of flexible electronics and display devices, can solve the problems of difficult large-scale application, complex process and high cost

Active Publication Date: 2021-05-11
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a technical process is complex and costly, and it is difficult to achieve large-scale application.

Method used

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  • A kind of water/oxygen barrier polymer-based composite material and its preparation method and application
  • A kind of water/oxygen barrier polymer-based composite material and its preparation method and application
  • A kind of water/oxygen barrier polymer-based composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This example is a preparation example of a water / oxygen barrier polymer-based composite film material.

[0043] The water / oxygen barrier polymer-based composite film material is prepared according to the following steps:

[0044] 1. Prepare the prepolymer of the upper and lower polymer surface layers: take 0.8049g (4.02mmol) of diamine monomer diaminodiphenyl ether ODA and add it to 10mL of DMF solution, and continue stirring for a period of time to fully mix the system; add to the above system 0.8943g (4.10mmol) of the dianhydride monomer 1,2,4,5-pyromellitic dianhydride PMDA was added and stirred at a medium speed for 6 hours until the system formed a sol.

[0045] 2. Modification and intercalation of inorganic layered fillers: take 10g of sodium montmorillonite and 100mL of ultrapure water to make a 5%-10% suspension under ultrasonic stirring conditions, and after standing at room temperature for 24h to settle, take Centrifuge the upper suspension to obtain montmori...

Embodiment 2

[0055] This example is a preparation example of a water / oxygen barrier polymer-based composite film material.

[0056] The water / oxygen barrier polymer-based composite film material is prepared according to the following steps:

[0057] 1. Prepare the prepolymer of the upper and lower polymer surface layers: take 1.0248g (4.74mmol) diamine monomer 4,4'-diaminodiphenyl sulfide SDA and add it to 10mL DMF solution, and keep stirring for a period of time to make the system fully Mixing; add 1.0540 g (4.83 mmol) of dianhydride monomer 1,2,4,5-pyromellitic dianhydride PMDA to the above system, and stir at a medium speed for 6 hours after the addition until the system forms a sol.

[0058] 2. Modification and intercalation of inorganic layered fillers: take 10g of sodium montmorillonite and 100mL of ultrapure water to make a 5%-10% suspension under ultrasonic stirring conditions, and after standing at room temperature for 24h to settle, take Centrifuge the upper suspension to obtain...

Embodiment 3

[0068] This example is a preparation example of a water / oxygen barrier polymer-based composite film material.

[0069] The water / oxygen barrier polymer-based composite film material is prepared according to the following steps:

[0070] 1. Prepare the prepolymer of the upper and lower polymer surface layers: take 1.3841g (3.28mmol) diamine monomer 2,2'-bis(4-aminophenoxyphenyl)propane BAPP and add it to 10mL DMF solution, and continue Stir for a period of time to fully mix the system; add 0.7307g (3.35mmol) of dianhydride monomer 1,2,4,5-pyromellitic dianhydride PMDA to the above system, and stir at a medium speed for 6 hours until the system is formed Sol.

[0071] 2. Modification and intercalation of inorganic layered fillers: take 10g of sodium montmorillonite and 100mL of ultrapure water to make a 5%-10% suspension under ultrasonic stirring conditions, and after standing at room temperature for 24h to settle, take Centrifuge the upper suspension to obtain montmorillonite...

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Abstract

The invention discloses a water / oxygen barrier polymer-based composite material, which is composed of an inorganic layered filler dispersed in a polymer matrix material after reacting with a surface modifier and an intercalation agent, and the polymer matrix material is Organic polymers containing amide linkages or hydroxyl or carboxyl groups. The invention has the advantages of: the structure of the water / oxygen barrier layer is simple and effective; the preparation method is a solution state process, and the preparation process does not need to involve a vacuum process, and the preparation method is simple; the preparation cost of the water / oxygen barrier polymer-based composite material is low , and has a wide range of applications.

Description

technical field [0001] The invention relates to the fields of flexible electronics and display devices. Background technique [0002] With the rapid development of science and technology, the application of packaging materials with barrier properties has rapidly expanded from the traditional food and pharmaceutical packaging fields to the packaging of electronic products. Various high-tech electronic products have increasingly strict requirements on the barrier properties of packaging materials. The requirements for water and oxygen barrier properties in different fields are shown in Table 1: [0003] Table 1. Range of requirements for barrier properties of packaging materials in different fields [0004] [0005] In the field of organic electroluminescent devices (OLEDs), the barrier performance requirements for encapsulation materials are particularly stringent. Organic Light-Emitting Diode (OLED), also known as Organic Light-Emitting Diode (OLED), was discovered in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08K9/06C08K9/04C08K7/00C08K3/34C08L79/08C08G73/10
CPCC08G73/1007C08G73/105C08G73/1067C08G73/1071C08J5/18C08J2379/08C08K3/34C08K3/346C08K7/00C08K9/04C08K9/06C08L2203/16C08L2203/20C08L79/08
Inventor 张艺张凯余桥溪许家瑞池振国刘四委
Owner SUN YAT SEN UNIV