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

Flexible conductive biopolymer material as well as preparation method and application thereof

A biopolymer, flexible and conductive technology, applied in the field of biomaterials, can solve problems such as poor ductility and high tensile strength

Pending Publication Date: 2021-09-07
SHENZHEN UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a flexible conductive biopolymer material and its preparation method and application, aiming to solve the problems of high tensile strength and poor ductility of existing biopolymer materials

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
  • Flexible conductive biopolymer material as well as preparation method and application thereof
  • Flexible conductive biopolymer material as well as preparation method and application thereof
  • Flexible conductive biopolymer material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Configuration gelatin mass fraction is the gelatin aqueous solution of 15%, 2.6g choline chloride and 3.4g glycerin are mixed, stir until completely uniform, then it is joined in the 13.3g gelatin aqueous solution (the quality of gelatin is the same as that of choline chloride and glycerin) The ratio of mass to weight is 1:3), after stirring for 2 hours to mix evenly, pour it into a film mold, and dry it for 24 hours at a temperature of 40°C and a humidity of 20% to obtain a flexible film material, which is designated as P1-1.

[0067] Repeat the above steps, the difference is that the quality of the gelatin aqueous solution is 20g, 30g, 40g, 60g, 120g respectively, that is, the ratio of the quality of the gelatin to the mass sum of choline chloride and glycerin is 1:2, 3:4, 1 :1, 3:2, 3:1, and the obtained flexible film materials are recorded as P1-2, P1-3, P1-4, P1-5, P1-6 respectively.

[0068] The flexible thin film material prepared in embodiment 1 is carried out s...

Embodiment 2

[0071] 2.6g choline chloride and 3.4g glycerol were mixed, stirred until completely uniform, then it was added to 20g agar aqueous solution (the mass fraction of agar was 2%), after stirring for 2 hours and mixed uniformly, poured in the film mould, It was dried for 24 hours under the conditions of temperature 40° C. and humidity 20%, to obtain a flexible film material.

[0072] Repeat above-mentioned steps 4 times, difference is that agar aqueous solution (massfraction of agar is 2%) is replaced by carrageenan aqueous solution (massfraction of carrageenan is 2%), sodium alginate aqueous solution (massfraction of sodium alginate is 2%) respectively. 2%), an aqueous solution of chitosan (the mass fraction of chitosan is 2%), an aqueous solution of gum arabic (the mass fraction of gum arabic is 2%).

[0073] The flexible thin film material prepared in embodiment 2 is carried out stress-strain test, the result is as follows image 3 shown by image 3 It can be seen that the ela...

Embodiment 3

[0075] Prepare a gelatin aqueous solution with a gelatin mass fraction of 15%, mix 3.23g of choline chloride and 2.77g of urea, stir until completely uniform, then add it to 20g of gelatin aqueous solution, stir for 2 hours and mix well, then pour into a film mold , dried for 24 hours at a temperature of 40° C. and a humidity of 20%, to obtain a flexible film material, which is designated as P2.

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
elastic modulusaaaaaaaaaa
elongationaaaaaaaaaa
tensile strength at breakaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flexible conductive biopolymer material as well as a preparation method and application thereof, wherein the preparation method comprises the steps: dissolving a biopolymer in water to obtain a biopolymer aqueous solution; adding a deep eutectic solvent into the biopolymer aqueous solution, and stirring to obtain an aqueous solution containing the deep eutectic solvent and the biopolymer; and forming the aqueous solution containing the deep eutectic solvent and the biopolymer through a mechanical method, and drying to obtain the flexible conductive biopolymer material. The deep eutectic solvent and the biopolymer have good intermiscibility, and a large number of hydrogen bonds existing in the deep eutectic solvent interact with hydrogen bonds in a biopolymer chain to form new hydrogen bonds, so that the intermolecular interaction in the biopolymer chain is reduced, the mobility of the biopolymer molecular chain is improved, the tensile strength of the biopolymer material is reduced, and the ductility of the biopolymer material is improved.

Description

technical field [0001] The invention relates to the field of biomaterials, in particular to a flexible conductive biopolymer material and its preparation method and application. Background technique [0002] Biopolymers (including silk, gelatin, starch, cellulose, sodium alginate and chitosan, etc.) are green polymer materials with good biocompatibility and degradability, and can be used as food or drug additives and Encapsulating agent can also be used as wound dressing and tissue repair material. However, biopolymers generally form hard and brittle films with poor mechanical properties and poor stability. Adding plasticizers is an effective means to solve the above problems. Commonly used plasticizers include polyols such as glycerin, mannitol, sorbitol, polyethylene glycol, and ethylene glycol, or other solvent-based molecules. However, the biopolymer materials obtained based on the current technology have high tensile strength (MPa level) and poor ductility (elongation...

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): C08L89/00C08L5/12C08L5/00C08L5/04C08L5/08C08K5/053C08K5/19C08K5/21C08J5/18
CPCC08J5/18C08J2389/00C08K5/053C08K5/19C08J2305/12C08J2305/00C08J2305/04C08J2305/08C08K5/21
Inventor 周学昌宋华峰王海飞肖富瑞邓晓波陆喜
Owner SHENZHEN UNIV
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