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

Method for preparing nano composite fiber membrane based on electrostatic spinning technology

A nanocomposite fiber and electrospinning technology, which is applied in electrospinning, fiber processing, rayon manufacturing, etc., can solve the problems of poor usability, carcinogenicity, and easy phase separation of fiber membranes, and achieve large specific surface area and chemical The effect of stable properties and difficult phase separation

Pending Publication Date: 2021-11-02
DALIAN POLYTECHNIC UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the used spinning solution solvent dichloromethane is highly toxic and carcinogenic, and is prone to phase separation during the spinning process, resulting in poor usability of the prepared fiber membrane.

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 nano composite fiber membrane based on electrostatic spinning technology
  • Method for preparing nano composite fiber membrane based on electrostatic spinning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of spinning solution solute mass ratio is the preparation method of polycaprolactone: polyvinylpyrrolidone=1:1 nanocomposite fiber membrane, described preparation method comprises the following steps:

[0022] ①Weigh the polycaprolactone and polyvinylpyrrolidone according to the mass ratio of 1:1, dissolve them in the trifluoroethanol solvent according to the mass fraction of 12wt%, and fully stir them evenly with a magnetic stirrer;

[0023] ② Put the composite spinning solution prepared in step ① into a syringe, select a spinning nozzle with an inner diameter of 0.33±0.01mm, set the voltage at 20kV, the flow rate of the spinning solution at 1mL / h, and the receiving distance at 18cm. The electrospinning process is carried out in the spinning machine, and finally the nanocomposite fiber membrane is directly obtained on the receiving plate;

[0024] ③Remove the fiber membrane from the receiving plate with tweezers and dry it at 100°C. See the SEM picture of the ob...

Embodiment 2

[0026] A method for preparing a nanocomposite fiber film with a mass ratio of polycaprolactone: polyvinylpyrrolidone=1:1.5 in a spinning solution solute, the preparation method comprising the following steps:

[0027] ①Weigh the polycaprolactone and polyvinylpyrrolidone according to the mass ratio of 1:1.5, dissolve them in the trifluoroethanol solvent according to the mass fraction of 12wt%, and fully stir them evenly with a magnetic stirrer;

[0028] ② Put the composite spinning solution prepared in step ① into a syringe, select a spinning nozzle with an inner diameter of 0.33±0.01mm, set the voltage at 20kV, the flow rate of the spinning solution at 1mL / h, and the receiving distance at 18cm. The electrospinning process is carried out in the spinning machine, and finally the nanocomposite fiber membrane is directly obtained on the receiving plate;

[0029] ③Remove the fiber membrane from the receiving plate with tweezers and dry it at 100°C. See the SEM picture of the obtain...

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 belongs to the technical field of electrostatic spinning, and particularly relates to a method for preparing a nano composite fiber membrane based on an electrostatic spinning technology. The preparation method comprises the following steps of (1) dissolving polycaprolactone and polyvinylpyrrolidone in trifluoroethanol, and magnetically stirring and uniformly mixing to obtain a spinning solution; and (2) carrying out electrostatic spinning on the spinning solution obtained in the step (1) in an electrostatic spinning machine, and drying to obtain the nano composite fiber membrane material. Two substances including polycaprolactone and polyvinylpyrrolidone are blended for electrostatic spinning to obtain the nano composite fiber membrane with small diameter and large specific surface area, the structure is similar to that of collagen in an extracellular matrix, and the nano composite fiber membrane can be applied to the field of tissue engineering materials and has good application prospects, and the nano composite fiber membrane can be used as a good base material to load a nano functional material, so that a functional fiber membrane material is prepared.

Description

technical field [0001] The invention belongs to the technical field of electrospinning, and in particular relates to a method for preparing a nanocomposite fiber membrane based on the electrospinning technology. Background technique [0002] In recent years, biodegradable polymers have attracted more and more attention in the field of biomedicine. Some polymers have excellent properties of biodegradability and biocompatibility, and are used in the slow-release carrier of long-acting drugs and tissue engineering scaffolds in the biomedical field, which has important realities in the fields of health, environmental protection and economy. significance. Liu Qingqing and others used polycaprolactone and polyvinylpyrrolidone as solutes and methylene chloride as solvent to prepare nanocomposite fiber membrane materials. However, the used spinning solution solvent dichloromethane is highly toxic and carcinogenic, and is prone to phase separation during the spinning process, resul...

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): D04H1/4382D04H1/728D01D5/00D01F8/10D01F8/14D01F1/02
CPCD04H1/43825D04H1/728D01D5/003D01D5/0092D01D5/0069D01F8/14D01F8/10D01F1/02
Inventor 王滢刘跃洲吕丽华钱永芳李西月刘妍靖
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