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

Chemically cross-linked modified silk fibroin/alginate composite fiber and preparation method thereof

A technology of silk fibroin and chemical cross-linking, which is applied in the fields of spinning solution preparation, cellulose/protein conjugated artificial filament, fiber chemical characteristics, etc., can solve the limited application range, insufficient mechanical properties of pure sodium alginate fiber, etc. problem, to achieve the effects of obvious enhancement effect, increased practicality and added value, and simple process

Active Publication Date: 2018-07-13
DALIAN POLYTECHNIC UNIVERSITY
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of pure sodium alginate fibers are insufficient, which limits its application range.

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
  • Chemically cross-linked modified silk fibroin/alginate composite fiber and preparation method thereof
  • Chemically cross-linked modified silk fibroin/alginate composite fiber and preparation method thereof
  • Chemically cross-linked modified silk fibroin/alginate composite fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This example discloses a chemically cross-linked modified silk fibroin / alginate composite fiber, which is prepared by the following method:

[0025] Put the shredded cocoons into 0.5% NaCO 3 In the solution, degumming was carried out three times in water at 100° C. for 30 minutes each time, and the silk fiber was obtained after drying. Prepare a mixed solution of calcium chloride, ethanol, and water (molar ratio 1:2:8), dissolve silk fibers at 70°C, and obtain a silk fibroin solution after dialysis and centrifugation.

[0026] Dissolve 2g of sodium alginate in a certain amount of water to prepare a sodium alginate solution with a mass concentration of 2%. According to the solid mass ratio of silk fibroin and sodium alginate as 1:10, mix the mass concentration of 4.5% silk fibroin solution and seaweed Mix sodium acid solution, add 0.2g polyethylene glycol diglycidyl ether, mechanically stir and react for 60min in water at 60°C, after the reaction is completed, let it st...

Embodiment 2

[0032] This example discloses a chemically cross-linked modified silk fibroin / alginate composite fiber, which is prepared by the following method:

[0033] Put the shredded cocoons into 0.5% NaCO 3In the solution, degumming was carried out three times in water at 100° C. for 30 minutes each time, and the silk fiber was obtained after drying. Prepare a mixed solution of calcium chloride, ethanol, and water (molar ratio 1:2:8), dissolve silk fibers at 70°C, and obtain a silk fibroin solution after dialysis and centrifugation. Dissolve 2g of sodium alginate in a certain amount of water to prepare a sodium alginate solution with a mass concentration of 2%. The mass ratio of silk fibroin and sodium alginate at a mass concentration of 4.5% is 1:10, and the silk fibroin solution and Sodium alginate solution was mixed, 0.4g polyethylene glycol diglycidyl ether was added, mechanically stirred and reacted in water at 60°C for 60 minutes, after the reaction was completed, it was allowed...

Embodiment 3

[0036] This example discloses a chemically cross-linked modified silk fibroin / alginate composite fiber, which is prepared by the following method:

[0037] Put the shredded cocoons into 0.5% NaCO 3 In the solution, degumming was carried out three times in water at 100° C. for 30 minutes each time, and the silk fiber was obtained after drying. Prepare a mixed solution of calcium chloride, ethanol, and water (molar ratio 1:2:8), dissolve silk fibers at 70°C, and obtain a silk fibroin solution after dialysis and centrifugation. Dissolve 2g of sodium alginate in a certain amount of water to configure a sodium alginate solution with a mass concentration of 2%. According to the solid mass ratio of silk fibroin and sodium alginate as 1:10, mix the silk fibroin solution with a mass concentration of 4.5% and Mix the sodium alginate solution, add 0.6g of polyethylene glycol diglycidyl ether, mechanically stir and react for 60 minutes in water at 60°C, after the reaction is completed, l...

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
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a chemical crosslinking modified silk fibroin / alginate complex fiber and a preparation method of the chemical crosslinking modified silk fibroin / alginate complex fiber. The chemical crosslinking modified silk fibroin / alginate complex fiber is prepared by extracting silk fibroin from a silkworm cocoon, mixing an extracted silk fibroin solution and a sodium alginate solution, adding a crosslinking agent for chemical crosslinking reaction, and performing wet spinning on a spinning solution after the reaction. Mechanical properties of the chemical crosslinking modified silk fibroin / alginate complex fiber are greatly improved; and in a preparation process of the chemical crosslinking silk fibroin / alginate complex fiber, the quantity of crosslinking points of the crosslinking agent and the silk fibroin, and a crosslinking degree can be controlled by changing the content of the crosslinking agent, so that the balance between fiber strength and spinning solution processability is adjusted to meet requirements for actual processing and application.

Description

technical field [0001] The invention relates to alginate fiber technology, in particular to a chemically cross-linked modified silk fibroin / alginate composite fiber and a preparation method thereof. Background technique [0002] With people's attention to resources and environmental issues, natural polymer materials have become a current research hotspot. As a natural polymer material, sodium alginate has been widely used in the fields of biomedicine, food, sewage treatment, agriculture and textile due to its good biocompatibility, natural degradability and high flame retardancy. The source of sodium alginate fiber is green and environment-friendly, and the raw materials required in the processing process do not pollute the environment, and have a good affinity with human skin. However, the mechanical properties of pure sodium alginate fibers are insufficient, which limits its application range. Silk fibroin is the main component of silkworm cocoons, accounting for about 7...

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 Patents(China)
IPC IPC(8): D01F8/02D01F8/18D01F8/16D01D1/02D01D5/06D01C3/02
CPCD01C3/02D01D1/02D01D5/06D01F8/02D01F8/16D01F8/18
Inventor 张鸿祝国富陈涛徐海涛曹仕文孟驰涵
Owner DALIAN POLYTECHNIC UNIVERSITY
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