Preparation method and product of high-stability flexible transparent conductive cellulose film

A cellulose film, transparent and conductive technology, applied in the production of bulk chemicals, coatings, starch coatings, etc., can solve the problems of conductive film conductive performance fluctuations, conductive layer shedding, etc., to improve high-end quality, increase conductive stability and The effect of friction resistance

Active Publication Date: 2018-12-25
FUJIAN AGRI & FORESTRY UNIV
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silver nanowire is an inorganic metal, and the cellulose film is an organic polymer. The phases between the two are incompatible, and there is no strong combination, so the conductive layer of the silver nanowire is very easy to fall off from the cellulose film substrate. , leading to large fluctuations in the conductivity of the conductive film

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The present invention relates to a kind of preparation method of flexible transparent conductive cellulose film of high stability, and described method step is as follows:

[0035] (1) dissolving the cellulose pulp in a cellulose solvent, and preparing a regenerated cellulose film through regeneration treatment;

[0036] (2) prepare starch solution;

[0037] (3) Disperse the silver nanowires in the starch solution to form a silver nanowire-starch solution, and cover the silver nanowire-starch solution on the cellulose film to obtain a sample;

[0038] (4) drying the prepared sample in an oven to obtain a highly stable flexible transparent conductive cellulose film.

[0039] The cellulose pulp in step (1) is wood dissolving pulp, non-wood dissolving pulp or cotton.

[0040] The cellulose solvent in step (1) is one of ionic liquid, N-methylmorpholine-N-oxide, DMAC-LiCl and NaOH-urea.

[0041] The starch solution in step (2) is corn starch, sweet potato starch or modifi...

example 1

[0047] Example 1: Preparation of highly stable flexible transparent conductive cellulose film

[0048] Step (1), preparing hardwood dissolving pulp, dissolving in ionic liquid, and preparing regenerated cellulose membrane through regeneration.

[0049] Step (2), prepare cornstarch, prepare the starch solution of 5g / L.

[0050] Step (3), dissolving the silver nanowires in the starch solution to prepare a silver nanowire-starch solution with a concentration of 50 ppm; spin-coat the silver nanowire-starch solution onto the cellulose film with a coater to obtain a sample.

[0051] Step (4), put the sample in step (3) into an oven at 80° C., and process it for 40 minutes.

[0052] Step (5), after pasting 100 times with 3M adhesive tape, the conductivity of the conductive cellulose film only increases from 30Ω / □ to 38Ω / □, and the transparency is 75%.

example 2

[0053] Example 2: Preparation of highly stable flexible transparent conductive cellulose film

[0054] Step (1), preparing softwood dissolving pulp and dissolving it in N-methylmorpholine-N-oxide solution, and preparing regenerated cellulose film through regeneration.

[0055] Step (2), prepare oxidized starch, prepare 8g / L starch solution.

[0056] Step (3), dissolving the silver nanowires in the starch solution to prepare a silver nanowire-starch solution with a concentration of 100 ppm; spin-coating the silver nanowire-starch solution onto the cellulose film with a coater to obtain a sample.

[0057]Step (4), put the sample in step (3) into an oven at 50° C., and process it for 80 minutes.

[0058] Step (5), after pasting 200 times with 3M adhesive tape, the conductivity of the conductive cellulose film only increased from 10Ω / □ to 20Ω / □, and the transparency was 70%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
transparencyaaaaaaaaaa
transparencyaaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method and a product of a high-stability flexible transparent conductive cellulose film. The method includes the steps: dissolving cellulose pulp in a cellulose solvent and preparing a regenerated cellulose film by regeneration treatment; preparing starch solution; dispersing silver nanowires in the starch solution to form silver nanowire and starch solution and covering the cellulose film with the silver nanowire and starch solution to obtain a sample; drying the prepared sample in a drying box to obtain the high-stability flexible transparent conductive cellulose film. In introducing a starch buffer layer, the silver nanowires are effectively attached to a cellulose film substrate, so that the conductive stability and the abrasion resistance of the conductive film are greatly increased, and the high-end quality of the flexible transparent conductive film is improved.

Description

【Technical field】 [0001] The invention relates to a preparation method and product of a flexible transparent conductive cellulose film with high stability. 【Background technique】 [0002] With the advancement of modern technology, the flexibility, foldability and wearability of electronic equipment have become the development trend of electronic technology in the future. Compared with traditional electronic devices, flexible electronic devices have good application prospects in the fields of communication, information, biomedicine, machinery manufacturing, aerospace and national defense security due to their unique flexibility and ductility. Flexible transparent conductive films are the prerequisite for the preparation of flexible electronic devices, so they also need to have unique properties, including light weight, deformability, non-brittleness, good electrical conductivity, high optical transparency, good mechanical properties, thermal stability and chemical stability ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D103/02C09D7/61C08L1/02
CPCC08J2301/02C08J2403/02C08K7/00C08K2003/0806C08J7/0427Y02P20/54
Inventor 李建国陈礼辉倪永浩欧阳新华曹石林黄六莲郑清洪
Owner FUJIAN AGRI & FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap