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Method for preparing flexible screen substrate material

A matrix material and screen technology, applied in the direction of instruments, identification devices, etc., can solve the problems of slow degradation, efficiency, life, process operability, and insufficient cost, so as to achieve the goal of not being easily distorted and deformed, beneficial to environmental protection and waste disposal, high curl effect

Active Publication Date: 2016-07-13
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the OLED substrates that have been successfully researched still have several shortcomings such as efficiency, lifespan, process operability and cost.
In addition, traditional flexible screen substrates need to be heated at ultra-high temperatures during the production process or contain certain toxic substances, and after being discarded, they are stored in the natural environment and degrade very slowly, requiring more than tens of thousands of years. Subsequent recycling requires industrial degradation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a flexible screen matrix material:

[0018] The bagasse bleached pulp with a whiteness of 90% ISO and chitosan were selected as raw materials. First, the bagasse bleached pulp was modified by chemical methods to prepare a dialdehyde nanocellulose suspension with a solid content of 2%. At the same time, the chitosan Prepared into nano-scale chitosan. Dialdehyde nanocellulose and nanoscale chitosan are mixed evenly according to the weight ratio of 5:0.7, and then add 0.1% sodium persulfate of chitosan weight as an initiator to make dialdehyde nanocellulose and nanoscale chitosan The sugar is cross-linked, and at the same time, the form of its chemical bond is modified to obtain a modified nanocellulose. Finally, the modified nanocellulose and acrylic resin are composited into a film to obtain a matrix material for the preparation of flexible screens. The material has good light transmittance and biodegradability, high conductivity, a thickness of ...

Embodiment 2

[0020] A method for preparing a flexible screen matrix material:

[0021] Bagasse bleached pulp with a whiteness of 91% ISO and chitosan were selected as raw materials. First, the bagasse bleached pulp was modified by a chemical method to prepare a dialdehyde nanocellulose suspension with a solid content of 2.5%. At the same time, the chitosan Prepared into nano-scale chitosan. Dialdehyde nano-cellulose and nano-scale chitosan are mixed evenly according to the weight ratio of 5:0.85, and then add sodium persulfate of 1.2% of chitosan weight as an initiator to make dialdehyde nano-cellulose and nano-scale chitosan The sugar is cross-linked, and at the same time, the form of its chemical bond is modified to obtain a modified nanocellulose. Finally, the modified nanocellulose and acrylic resin are composited into a film to obtain a matrix material for the preparation of flexible screens. The material has good light transmittance and biodegradability, high electrical conductivit...

Embodiment 3

[0023] A method for preparing a flexible screen matrix material:

[0024] Bagasse bleached pulp with a whiteness of 92% ISO and chitosan were selected as raw materials. First, the bagasse bleached pulp was modified by a chemical method to prepare a dialdehyde nanocellulose suspension with a solid content of 3%. At the same time, the chitosan Prepared into nano-scale chitosan. Dialdehyde nanocellulose and nanoscale chitosan are mixed evenly according to the weight ratio of 5:1, and then add 3% sodium persulfate of chitosan weight as an initiator to make dialdehyde nanocellulose and nanoscale chitosan The sugar is cross-linked, and at the same time, the form of its chemical bond is modified to obtain a modified nanocellulose. Finally, the modified nanocellulose and acrylic resin are composited into a film to obtain a matrix material for the preparation of flexible screens. The material has good light transmittance and biodegradability, high conductivity, a thickness of 0.5mm, ...

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Abstract

The invention discloses a method for preparing a flexible screen substrate material.The method comprises the steps that bagasse bleaching pulp and chitosan are selected and used as raw materials, the bagasse bleaching pulp is modified through a chemical method to be prepared into dialdehyde nanometer cellulose suspension liquid, and meanwhile chitosan is prepared into nanoscale chitosan; the dialdehyde nanometer cellulose and the nanoscale chitosan are crosslinked by using sodium persulfate as an initiating agent, the chemical bond combining mode of the dialdehyde nanometer cellulose and the nanoscale chitosan is modified, and then modified nanometer cellulose is obtained; the modified nanometer cellulose and acrylic resin are composited into a film, and then a substrate material used for preparing a flexible screen is obtained.The method has the advantages that the flexible screen substrate material has the high transparency and surface smoothness and the good light permeability and comfortableness, the influence by temperature fluctuation in use is little, and the flexibility is good; the raw material resources are rich and easy to obtain and have the good biological degradability, and therefore the method is beneficial for environmental protection and waste treatment.

Description

technical field [0001] The invention belongs to the technical field of high-value utilization of lignocellulosic raw materials, in particular to a method for preparing a flexible screen matrix material. Background technique [0002] Compared with traditional screens, flexible screens (OLEDs) have the advantages of lighter volume, lower power consumption, longer battery life, and higher durability. The successful mass production of flexible screens will have a profound impact on the development of a new generation of high-end smartphones and wearable devices. According to IHS' report "Flexible Display Technology and Market Forecast", global shipments of flexible displays are expected to increase to 792 million units in 2020, up from 3.2 million units in 2013. Overall operating income will soar from a measly $100,000 to $41.3 billion over the same period. [0003] The screen substrate is a key part in the production of flexible screens, and has high requirements on its perfo...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08J3/24G09F9/30C08L1/04C08L33/00
CPCC08J3/246C08J5/18C08J2301/04C08J2333/00C08J2401/04C08J2433/00C08L1/04C08L33/00C08L2201/06C08L2201/10C08L2203/16C08L2203/20G09F9/301
Inventor 聂双喜宋雪萍姜言刘秀宇冯成启谢秋霞陈兰容贤健
Owner GUANGXI UNIV
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