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

Electrospinning nanofiber membrane-fabric composite coating material and preparation method

A nanofiber membrane and composite coating technology, applied in electrospinning, alcoholic beverage preparation, fiber processing, etc., can solve the problem of high production cost, achieve long working life, good acid and alkali resistance, and shorten the process flow. Effect

Active Publication Date: 2021-05-07
DALIAN POLYTECHNIC UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process does not require separate PVPP filter equipment, but the production cost is higher

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
  • Electrospinning nanofiber membrane-fabric composite coating material and preparation method
  • Electrospinning nanofiber membrane-fabric composite coating material and preparation method
  • Electrospinning nanofiber membrane-fabric composite coating material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] PVDF-HFP was dissolved in DMAC to obtain a 20 wt% PVDF-HFP solution. PVP was dissolved in DMAC to obtain a 6 wt% PVP solution. Then mix the PVDF-HFP solution and the PVP solution at a volume ratio of 7:3 to prepare a PVDF-HFP / PVP composite spinning solution. The PVDF-HFP / PVP composite spinning solution was subjected to needle-free electrospinning under the conditions of a voltage of 80kV, a solution box speed of 80mm / s, and a spinning time of 40min to obtain a PVDF-HFP / PVP nanocomposite membrane. The fracture strength of PVDF-HFP / PVP nanocomposite film is 4.6202MPa, the average diameter of nanofibers is 113nm, and the thickness is 0.054mm. SEM shows figure 1shown. Combine PVDF-HFP / PVP nanocomposite film with polyester woven fabric (polyester: polyester filament 300DX5, weft yarn: polyester filament, 300DX4; warp density: 307 threads / 10cm, weft density: 122 threads / 10cm, 2 / 2 twill) , placed in parallel up and down, and attached to each other, the surrounding edges are...

Embodiment 2

[0039] PVDF-HFP was dissolved in DMAC to obtain a 20wt% PVDF-HFP solution. 6 wt% of PVP was dissolved in DMAC to obtain a PVP solution. Then PVDF-HFP solution and PVP solution were mixed at a volume ratio of 9:1 to prepare PVDF-HFP / PVP composite spinning solution. The PVDF-HFP / PVP composite spinning solution was subjected to needle-free electrospinning under the conditions of a voltage of 80kV, a solution box speed of 80mm / s, and a spinning time of 40min to obtain a PVDF-HFP / PVP nanocomposite membrane. The fracture strength of the PVDF-HFP / PVP nanocomposite film is 9.1565MPa, the average diameter of nanofibers is 156nm, and the thickness is 0.114mm. SEM shows figure 2 shown. Combine PVDF-HFP / PVP nanocomposite film with polyester woven fabric (warp: polyester filament 300DX5, weft: polyester filament, 300DX4; warp density: 307 threads / 10cm, weft density: 122 threads / 10cm, 2 / 2 twill) , placed in parallel up and down, and attached to each other, clamped around the edge with a...

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
Breaking strengthaaaaaaaaaa
The average diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an electrospun nanofiber membrane-fabric composite coating material and a preparation method thereof. The composite coating material consists of three layers. The surface layer is cross-linked PVPP obtained by free radical polymerization of PVP persulfate; the middle layer is polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) / polyvinylpyrrolidone (PVP) needle-free electrospun nanofiber membrane; the bottom layer is fabric. The surface layer is the functional layer, and the middle layer and the bottom layer are composited together through the self-crosslinking of PVP and the intercrosslinking with PVDF‑HFP during the PVP crosslinking process to form the supporting layer of the composite coating material. The composite material prepared by the invention can be used for functional medical dressings and beer stabilizers, and has the double-layer functions of polyphenol adsorption and filtration.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a preparation method for processing an electrospinning / fabric binary composite material. It can be applied to the fields of nanometer material analysis technology and membrane material application technology. Background technique [0002] With the continuous development of the textile industry and the continuous improvement of people's requirements for the comprehensive performance of textiles, multifunctional composite fabrics will undoubtedly occupy a place in the development of fabrics. Among them, in recent years, the application of electrospun nanofibers in textiles, which has been widely concerned at home and abroad, is also increasing. In particular, reports on the combination of nanofibers and traditional fabrics for special industrial materials are not uncommon. [0003] PVPP is formed by cross-linking and polymerizing vinylpyrrolidone monomer u...

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): B32B7/12B32B27/30B32B27/12B32B27/02B32B27/36B32B27/32B32B27/34B32B33/00B32B37/00B32B37/12C12H1/07C12H1/056A61L15/24A61L15/42D01D5/00D04H1/728A61F13/02D06M15/356D06M101/18D06M101/22
CPCB32B7/12B32B5/26B32B33/00B32B37/0038B32B37/1284B32B5/08C12H1/063C12H1/0424A61L15/24A61L15/42A61F13/00063A61F13/0203D06M15/3562D01D5/003D04H1/728D06M2101/18D06M2101/22B32B2262/14B32B2262/0223B32B2262/0253B32B2262/0284B32B2262/0261B32B2260/021B32B2307/724A61F13/01046A61F13/01029A61F13/01017C08L27/20C08L39/06
Inventor 王迎杨云
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