Preparation method of nanofiber micro-moisture oil-water separation material with porous surface and lotus-root-shaped cross section

A surface porous, nanofiber technology, applied in separation methods, immiscible liquid separation, liquid separation, etc., can solve the problems of poor separation efficiency, secondary pollution, unenvironmental protection, etc., achieve high porosity, small pore size, high The effect of separation efficiency

Active Publication Date: 2020-03-31
SUZHOU UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diameter of the traditional filter membrane material is relatively thick, the pore size is large, and there are defects such as poor separation efficiency, easy to cause secondary pollution, or not environmentally friendly.

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
  • Preparation method of nanofiber micro-moisture oil-water separation material with porous surface and lotus-root-shaped cross section
  • Preparation method of nanofiber micro-moisture oil-water separation material with porous surface and lotus-root-shaped cross section
  • Preparation method of nanofiber micro-moisture oil-water separation material with porous surface and lotus-root-shaped cross section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This implementation case shows a preparation method of a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-shaped cross-section according to the following steps. The specific steps are as follows:

[0035] (1) Prepare the shell PLA spinning solution: dissolving the PLA particles in a mixed solvent of DCM and DMAC with a mass ratio of 10:1 to obtain a shell PLA solution with a concentration of 8wt%;

[0036] (2) Preparation of nuclear layer PVA spinning solution: PVA particles are dissolved in DMSO solvent, after the PVA particles are completely dissolved, then DCM (wherein DMSO / DCM solvent ratio 2:1) is added in the PVA / DMSO mixed solution, finally Obtain 2wt% nuclear layer PVA solution;

[0037] (3) Coaxial electrospinning: Coaxial electrospinning with aluminum foil as the receiving base material produces nanofiber micro-moisture oil-water separation materials with a porous surface and a lotus-shaped cross-section. The process par...

Embodiment 2

[0041] This implementation case shows a preparation method of a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-shaped cross-section according to the following steps. The specific steps are as follows:

[0042] (1) Preparation of shell PLA spinning solution: with step (1) in Example 1;

[0043] (2) prepare nuclear layer PVA spinning solution: with step (2) among the embodiment 1;

[0044](3) Coaxial electrospinning: Coaxial electrospinning with aluminum foil as the receiving base material makes nanofiber micro-moisture oil-water separation materials with porous surface and lotus-shaped cross-section. The process parameters of electrospinning are: spinning temperature 25 ℃, the flow rate of the inner and outer layers of the spinning solution is 0.3mL / h: 0.9mL / h, the spinning voltage is 19kV, and the receiving distance is 9cm. The receiving device of electrospinning is a horizontal moving drum, the receiving substrate is covered on the d...

Embodiment 3

[0048] This implementation case shows a preparation method of a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-shaped cross-section according to the following steps. The specific steps are as follows:

[0049] (1) Preparation of shell PLA spinning solution: with step (1) in Example 1;

[0050] (2) prepare nuclear layer PVA spinning solution: with step (2) among the embodiment 1;

[0051] (3) Coaxial electrospinning: Coaxial electrospinning with aluminum foil as the receiving base material produces a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-shaped cross-section. The process parameters of the electrospinning are: spinning temperature 22 ℃, the flow rate of the inner and outer layers of the spinning solution is 0.3mL / h: 0.9mL / h, the spinning voltage is 19kV, and the receiving distance is 12cm. The receiving device of electrospinning is a horizontal moving drum, the receiving substrate is co...

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 preparation method of a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-root-shaped cross section. A coaxial electrostatic spinning method is adopted to prepare the nanofiber micro-moisture oil-water separation material with the lotus-root-shaped structure. A large number of nanoscale holes exist in the material, and the lotus-root-shaped structure composed of a large number of nanoscale holes also exists in the material. The oil-water separation material can well separate and intercept micro-moisture in an oil-water emulsion,allows oil molecules to smoothly pass through, does not cause secondary pollution while achieving high separation efficiency, and has a wide application prospect in the field of micro-moisture oil-water separation.

Description

technical field [0001] The invention belongs to the technical field of micro-moisture oil-water separation, and in particular relates to a preparation method of a nanofiber micro-moisture oil-water separation material with a porous surface and a lotus-shaped cross section. Background technique [0002] Diesel is one of the indispensable fuels in contemporary production and life, but the moisture in the diesel will block the fuel filter, and the impurities in the diesel will increase the friction and increase the loss of equipment, resulting in the reduction of machine life. Membrane separation method is a method of separating, fractionating, purifying and enriching the solute and solvent of two or more molecular groups by using natural or synthetic polymer membranes with external energy or chemical potential difference as the driving force. Traditional filter membrane materials have relatively thick diameters and large pore sizes, which have defects such as poor separation e...

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): B01D69/02B01D67/00B01D17/02B01D17/022C10G33/06D01D5/00D01D5/247
CPCB01D69/02B01D67/0002B01D17/085B01D17/02C10G33/06D01D5/247D01D5/003D01D5/0069D01D5/0076C10G2400/04C10G2300/1055C10G2300/1059
Inventor 江爱云潘志娟
Owner SUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap