A kind of preparation method of cellulose-based flexible electronic material

An electronic material and cellulose technology, which is applied in fiber raw material processing, non-fibrous pulp addition, non-polymeric organic compound addition, etc. Tone, good flexibility, good biocompatibility

Active Publication Date: 2022-05-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing cellulose-based flexible electronic materials, so as to overcome the problems that traditional sensors made of metal materials have high rigidity, high hardness, and will generate a large amount of non-degradable electronic waste after use. The present invention can obtain Cellulose-based flexible electronic materials with good flexibility, biocompatibility and biodegradability provide new ideas for the efficient development of green flexible electronics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] A versatile and easily scalable preparation method to achieve conductive cellulose films with excellent mechanical properties

[0033] A preparation method for cellulose-based flexible electronic materials that uses a general and easily expandable preparation method to achieve a conductive cellulose film with excellent mechanical properties, comprising the following steps:

[0034] (1) The polyvinyl alcohol is added to the deionized water, heated to 85 ~ 95 ° C in the oil bath pot and continuously stirred for 2 ~ 4h, after cooling to obtain a polyvinyl alcohol solution; the mass ratio of the polyvinyl alcohol to the deionized water is 1: (11 ~ 15);

[0035] (2) The glycerol was added to the deionized water and continuously stirred for 20 to 30min to give a glycerol solution, the mass ratio of the glycerol to the deionized water is 1: (16 ~ 20);

[0036] (3) The above polyvinyl alcohol solution, glycerol solution is mixed to prepare polyvinyl alcohol / glycerol solution, by s...

Embodiment 1

[0046] Taking the single layer of low-quantitative household paper produced by the Jierou brand as an example, the embodiment of the present invention is introduced as follows:

[0047]10g of polyvinyl alcohol was added to 110g of deionized water, heated to 85 ° C in an oil bath pot and continuously stirred for 4h, after cooling to get polyvinyl alcohol solution; 10g of glycerol was added to 160g of deionized water and continuously stirred for 20min to give a glycerol solution; 1g of lithium fluoride was dissolved in 0.8g hydrochloric acid solution, mixed at room temperature for 5min after slowly adding 0.54g of aluminum carbide under magnetic stirring, adding speed of 0.8g / min, adding time of 1min, Continuous magnetic stirring and the temperature was raised to 30 °C for 36h, the solid precipitation was separated by centrifugation to obtain a two-dimensional transition group metal carbide powder, and the two-dimensional transition group metal carbide powder was washed with deioniz...

Embodiment 2

[0049] Taking Qingfeng brand single layer low-quantitative household paper as raw material as an example, the embodiment of the present invention is introduced as follows:

[0050]10g of polyvinyl alcohol was added to 150g of deionized water, heated in an oil bath pot at 95 ° C and continuously stirred for 2h, after cooling to obtain polyvinyl alcohol solution; 10g of glycerol was added to 200g of deionized water and continuously stirred for 30min to give a glycerol solution; 1g of lithium fluoride was dissolved in 1.2g hydrochloric acid solution, mixed at room temperature for 30min, slowly added 1.1g of aluminum carbide under magnetic stirring, the addition speed was 1.2g / min, and the addition time was 1min. Continuous magnetic stirring and the temperature was raised to 50 °C for 24h, the solid precipitation was separated by centrifugation to obtain a two-dimensional transition group metal carbide powder, and the two-dimensional transition group metal carbide powder was washed wi...

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Abstract

The invention discloses a preparation method of a cellulose-based flexible electronic material. The cellulose-based flexible electronic material is prepared by using a single-layer low-weight household paper as a base material, which has excellent electrical conductivity, high mechanical strength and stability, and can be used for It replaces traditional sensors made of semiconductor and metal materials with high hardness and high rigidity, as well as non-degradable polymers traditionally used as flexible substrate materials.

Description

Technical field [0001] The present invention belongs to the field of cellulose-based functional materials, specifically relates to a method for preparing a cellulose-based flexible electronic material. Background [0002] With the growing concern about environmental issues and the rapid depletion of fossil fuel resources, there is great interest in incorporating biodegradable and renewable materials into electronic materials, aiming to achieve sustainable development of human society. In recent years, the rapid emergence of flexible electronic products / concepts has opened up new prospects in the field of future electronics, and has shown great application potential in the fields of information, energy, medical treatment and national defense, such as flexible electronic displays, organic light-emitting diodes, thin-film solar panels, etc. Compared with traditional electronic devices, flexible electronics have unique flexibility and have obvious advantages in terms of deformability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/36D21H17/06D21H17/66D21H17/67
CPCD21H17/36D21H17/06D21H17/66D21H17/67
Inventor 王文亮王旭彪任肖肖谢旻希刘汉斌赵兴金
Owner SHAANXI UNIV OF SCI & TECH
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