Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Efficient electrostatic spinning oil-water separation fiber membrane

A technology of oil-water separation and electrospinning, applied in electrospinning, immiscible liquid separation, liquid separation, etc., can solve the problems of low separation efficiency, poor strength, secondary pollution, etc., and achieve high separation efficiency and high separation The effect of traffic

Inactive Publication Date: 2016-05-25
NANJING FORESTRY UNIV
View PDF3 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these fibers have the disadvantages of slow separation speed, low separation efficiency, poor stability, poor strength, and easy to produce secondary pollution.
Moreover, the biggest obstacle of slow separation speed, low separation efficiency and poor strength seriously limits their practical application.

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
  • Efficient electrostatic spinning oil-water separation fiber membrane
  • Efficient electrostatic spinning oil-water separation fiber membrane
  • Efficient electrostatic spinning oil-water separation fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The preparation method of the preparation method of the efficient superhydrophobic and superoleophilic oil-water separation nanofiber membrane comprises the following process steps:

[0027] (1) synthesis of PAA;

[0028] Add biphenyltetracarboxylic dianhydride (BPDA) and p-phenylenediamine (PDA) respectively 2.9422g and 1.0814g (molar ratio 1:1) into a dry four-necked flask equipped with a mechanical stirrer, a thermometer, and a nitrogen gas inlet and outlet tube, and mix well ; Under strong mechanical stirring, add 40ml of DMAc, react at -15°C-5°C for 24 hours, and then terminate the reaction to obtain PAA.

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 an efficient electrostatic spinning oil-water separation fiber membrane. The preparation method includes the steps that polyamic acid (PPA) is synthesized, a PPA nanofiber membrane is prepared in an electrospinning mode, and the PPA nanofiber membrane is imidized into a polyimide membrane (PI); a cellulose acetate (CA) nanofiber membrane is prepared; coaxial electrospinning is carried out on CA-PAA, and a product is imidized into CA-PI; benzoxazine monomers (BAF-tfa) are synthesized; in-situ immobilization is performed on the CA, PI and CA-PI nanofiber membranes with BAF-tfa and BAF-tfa / silica nanoparticles (SiO2NPs); an oil-water separation experiment is carried out. The preparation method has the advantages that by carrying out surface modification on the fiber membranes, the CA-PI nanofiber membrane which is biodegradable, low in cost, large in oil-water separation flow and high in separation efficiency is obtained; the high-performance membrane material has broad application prospects in oil-water separation, sewage treatment and deepwater oil leak.

Description

technical field [0001] The invention relates to a method for preparing an efficient electrospinning oil-water separation fiber membrane, in particular a method for preparing an efficient superhydrophobic and super-oleophilic electrospinning oil-water separation fiber membrane for gravity-driven oil-water separation. Background technique [0002] By electrospinning, many literatures on nanofibrous membranes such as polystyrene, polycaprolactone, polymethyl methacrylate, polyurethane, and inorganic silica fibers have been reported. However, these fibers have the disadvantages of slow separation speed, low separation efficiency, poor stability, poor strength, and easy to produce secondary pollution. Moreover, the biggest obstacle of slow separation speed, low separation efficiency and poor strength seriously limits their practical application. Contents of the invention [0003] The present invention proposes a method for preparing an efficient superhydrophobic and superoleop...

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): D04H1/4258D04H1/4334D04H1/4382D04H1/728D01D5/00B01D17/022C02F1/40
CPCD04H1/4258B01D17/02C02F1/40D01D5/003D04H1/4334D04H1/4382D04H1/728
Inventor 黄超伯赵俊涛马文静刘中车陈鄞琛王芳高步红邵伟
Owner NANJING FORESTRY 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
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