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

Method for preparing fibers in linear structure through pickering emulsion electrospinning

A linear structure, emulsion technology, applied in the chemical characteristics of fibers, rayon manufacturing, textiles and papermaking, etc., can solve the problems of difficult to popularize, harsh conditions, rare raw materials, etc., and achieve easy mass production, mild conditions, and easy raw materials. the effect

Active Publication Date: 2014-04-30
HAINAN UNIVERSITY
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the preparation of linear fibers, the traditional preparation method has rare raw materials, complicated process, harsh conditions and is not environmentally friendly, so it is difficult to promote

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
  • Method for preparing fibers in linear structure through pickering emulsion electrospinning
  • Method for preparing fibers in linear structure through pickering emulsion electrospinning
  • Method for preparing fibers in linear structure through pickering emulsion electrospinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Preparation of Sodium Alginate Derivatives

[0043] Put 5g of sodium alginate and 230ml of ultrapure water in a 500mL round bottom flask, heat to 35°C and stir until completely dissolved, then weigh 1.213g of EDC·HCL (1-ethyl-(3-dimethylaminopropyl) Carbodiimide hydrochloride) was dissolved in 5mL HCl, and it was quickly added to the dissolved sodium alginate, after stirring evenly, the pH value of the solution was adjusted to 3.41 with 0.5mol / L HCl. After reacting for 10 minutes, octylamine was added according to a certain molar ratio, and reacted at 35° C. for 24 hours while stirring at a constant temperature. The obtained product was precipitated with absolute ethanol and centrifuged, washed twice, and the precipitate was put into a constant temperature blast drying oven, and dried at 60° C. to constant weight. Dissolve the obtained solid product in ultrapure water, dialyze for three days to remove small molecular impurities, add ethanol again to precipitate, ce...

Embodiment 2

[0054] (1) Preparation of Sodium Alginate Derivatives

[0055] Put 5g of sodium alginate and 230ml of ultrapure water in a 500mL round bottom flask, heat to 35°C and stir until completely dissolved, then weigh 1.213g of EDC·HCL (1-ethyl-(3-dimethylaminopropyl) Carbodiimide hydrochloride) was dissolved in 5mL HCl, and it was quickly added to the dissolved sodium alginate, after stirring evenly, the pH value of the solution was adjusted to 3.41 with 0.5mol / L HCl. After reacting for 10 minutes, octylamine was added according to a certain molar ratio, and reacted at 35° C. for 24 hours while stirring at a constant temperature. The obtained product was precipitated with absolute ethanol and centrifuged, washed twice, and the precipitate was put into a constant temperature blast drying oven, and dried at 60° C. to constant weight. Dissolve the obtained solid product in ultrapure water, dialyze for three days to remove small molecular impurities, add ethanol again to precipitate, ce...

Embodiment 3

[0066] (1) Preparation of Sodium Alginate Derivatives

[0067] Put 5g of sodium alginate and 230ml of ultrapure water in a 500mL round bottom flask, heat to 35°C and stir until completely dissolved, then weigh 1.213g of EDC·HCL (1-ethyl-(3-dimethylaminopropyl) Carbodiimide hydrochloride) was dissolved in 5mL HCl, and it was quickly added to the dissolved sodium alginate, after stirring evenly, the pH value of the solution was adjusted to 3.41 with 0.5mol / L HCl. After reacting for 10 minutes, octylamine was added according to a certain molar ratio, and reacted at 35° C. for 24 hours while stirring at a constant temperature. The obtained product was precipitated with absolute ethanol and centrifuged, washed twice, and the precipitate was put into a constant temperature blast drying oven, and dried at 60° C. to constant weight. Dissolve the obtained solid product in ultrapure water, dialyze for three days to remove small molecular impurities, add ethanol again to precipitate, ce...

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

No PUM Login to View More

Abstract

The invention discloses a method for preparing fibers in a linear structure through pickering emulsion electrospinning. The method comprises the steps of preparing pickering emulsion by using a sodium alginate derivative, nano-silica and cypermethrin, then preparing spinning emulsion dispersion liquid, carrying out high-voltage electrostatic spinning on the emulsion dispersion liquid, and collecting fibers with a slab or a roller, thus obtaining the micro-nano fibers in a linear structure. Compared with the prior art, the method has the beneficial effects that different morphologies of fibers in a linear structure are prepared by changing the ratio and spinning working parameters of the pickering emulsion dispersion liquid; by preparing the linear fibers by adopting the mode of pickering emulsion electrospinning, the preparation method is accessible in raw materials, simple in process and mild in conditions, is environment-friendly and safe, easily achieves mass production and has popularization and application values.

Description

technical field [0001] The invention relates to a method for preparing biopolymer materials, in particular to a method for preparing linear structural fibers by pickering emulsion electrospinning. Background technique [0002] Sodium alginate is a natural polysaccharide polymer extracted from kelp or seaweed. It is a renewable marine resource. Sodium alginate has the advantages of non-toxicity, low cost, wide range of sources and biodegradability. Pickering emulsion is a thermodynamically stable and kinetically unstable system in which solid particles are used as emulsifiers instead of surfactants in traditional emulsions. The wettability of solid particles is one of the main factors affecting the stability of solid emulsions. The solid particles are activated by sodium alginate derivatives to change the wettability and form a stable pickering emulsion. [0003] Due to their high specific surface area, micro-nanofibers have high application value in the fields of biomedici...

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): D01F1/10D01F9/08C08B37/04
Inventor 李嘉诚冯玉红林强魏思宝张世鑫黄俊浩李可
Owner HAINAN 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