Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Manufacturing method for high-flexibility high-elasticity and high-transparency wood film

A high-transparency, high-elasticity technology, used in wood treatment, wood heating, wood processing appliances, etc., can solve problems such as poor flexibility, and achieve the effect of promoting green development

Active Publication Date: 2018-07-24
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the preparation of transparent wood is mainly prepared by infiltrating epoxy resin, polymethyl methacrylate, polyvinyl butyral resin, etc. into wood that removes lignin. This transparent wood itself has many High rigidity, poor flexibility, so it cannot be applied to the preparation of transparent flexible electronic devices
This defect also greatly limits the application of transparent wood in high-tech fields. Therefore, it has become a very urgent task to invent a transparent wood with good flexibility and good mechanical strength and apply it to flexible electronic devices.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method for high-flexibility high-elasticity and high-transparency wood film
  • Manufacturing method for high-flexibility high-elasticity and high-transparency wood film
  • Manufacturing method for high-flexibility high-elasticity and high-transparency wood film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of highly flexible, highly elastic and highly transparent wood film, comprising the steps of:

[0044] (1) Slicing process step: get a poplar, cut out a piece of wood chip (length * width * thickness=10cm * 5cm * 0.02cm) that thickness is 200 microns from the chord section of wood;

[0045] (2) decolorization process step: the wood chips prepared by step (1) are put into sodium chlorite solution (solute concentration is 2%), then the pH of the solution is adjusted to 4-5 with acetic acid, and the temperature is slowly raised to 90°C, keep it for 3 hours, the wood chips will change from natural color to pure white, such as figure 1Shown, in the embodiment of the present invention, the process diagram of the chord section wood chips from natural color to pure white;

[0046] (3) Cleaning process steps: slowly take out the wood chips in step (2), and put them into the mixed solution of ethanol and water volume ratio of 2:8, 5:5, 8:2 for cleaning in tu...

Embodiment 2

[0049] A preparation method of highly flexible, highly elastic and highly transparent wood film, comprising the steps of:

[0050] (1) Slicing process step: get a poplar, cut out a piece of wood chips with a thickness of 250 microns (length * width * thickness = 10cm * 5cm * 0.025cm) from the cross section of the wood;

[0051] (2) Decolorization process steps: put the wood chips prepared in step (1) into sodium chlorite solution (solute concentration is 2%), then adjust the pH of the solution to 4-5, and slowly raise the temperature to 90°C , keeping for 2 hours, the wood chips change from natural color to pure white, such as figure 2 Shown, in the embodiment of the present invention, cross-section wood chip becomes the process diagram of pure white from natural color;

[0052] (3) Cleaning process steps: Take out the wood chips in step (2) slowly, put them into the mixed solution of acetone and water volume ratio of 2:8, 5:5, and 8:2 for cleaning in turn, and wait for the ...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a manufacturing method for a high-flexibility high-elasticity and high-transparency wood film which belongs to the technical field of film manufacturing. The manufacturing method comprises the following steps: (1), a slicing technical step; (2), a decoloring technical step, namely a wood film is soaked in a bleaching water solution; (3), a rinsing technical step, namely atreated wood film is taken out and then placed into a mixture of an organic solvent and water for rinsing, so that remaining components and impurities in the wood film are removed clearly; and (4), apermeation curing technical step, namely polyurethane modified epoxide resin and a curing agent permeate the manufactured decolored wood film, and then the wood film is heated and subjected to curingreaction, so that the high-flexibility high-elasticity and high-transparency wood film is manufactured. The manufacturing method is simple and feasible, low in production cost and environment-friendly; and the manufactured product has good waterproofness and mechanical strength.

Description

technical field [0001] The invention relates to a method for preparing a wood film, in particular to a method for preparing a highly flexible, high-elastic and high-transparency wood film, and belongs to the technical field of film preparation. Background technique [0002] In recent years, with the rapid development of science and technology, traditional rigid and opaque electronic devices such as touch screens and photodetectors cannot meet the needs of development due to their shortcomings such as bulkiness and unfavorable portability. Emerging optoelectronic industries, such as flexible display and fully transparent display, require electronic devices to be flexible and transparent. Due to their flexibility and lightness, these transparent electronic devices are widely used in wearable electronics, smart skin, bendable displays and human Machine interface and other aspects show great application prospects. [0003] Transparent flexible devices require transparent flexib...

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
IPC IPC(8): B27M3/00B27K5/04B27K5/00B27K3/15B27K3/08C08G18/58C08G18/48H01L31/0236H01L31/04
CPCB27K3/08B27K3/15B27K5/001B27K5/04B27M3/00C08G18/4825C08G18/58H01L31/02366H01L31/04Y02E10/50
Inventor 唐启恒郭文静
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com