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

Preparation method of cellulose-based oil-water separation thin film

A technology for separating membranes and cellulose, applied in semipermeable membrane separation, chemical instruments and methods, membranes, etc., can solve the problems of weak interaction between hydrophobic particles and substrates, poor stability, and easy falling off

Inactive Publication Date: 2017-05-31
FUJIAN AGRI & FORESTRY UNIV
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the hydrophobic particles are not covalently bonded to the filter paper, the interaction between the hydrophobic particles and the substrate is weak, it is easy to fall off, and the stability is poor

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 cellulose-based oil-water separation thin film
  • Preparation method of cellulose-based oil-water separation thin film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] A preparation method of cellulose-based oil-water separation membrane, comprising the following steps:

[0025] (1) immerse the cellulose filter paper in an inert solvent, drop an acid-binding agent and an acyl halide reagent to react, and obtain a filter paper with a macromolecular initiator grafted on the surface;

[0026] The inert solvent is selected from any one of dichloromethane, chloroform, tetrahydrofuran, hexane, xylene, and toluene.

[0027] The acid-binding agent is any one of pyridine, triethylamine, and 4-dimethylaminopyridine, and the mass ratio is acid-binding agent: filter paper = 0.1-6: 1, preferably acid-binding agent: filter paper = 0.4-3 :1.

[0028] The acyl halide reagent is any one of 2-bromoisobutyryl bromide, 2-chloroisobutyryl chloride, chloroacetyl chloride, bromoacetyl bromide, 2-chloropropionyl chloride, 2-bromopropionyl bromide, and the acyl The mass ratio of the halogen reagent to the filter paper is 0.1-15:1, preferably 0.4-6:1.

[00...

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 provides a preparation method of a cellulose-based oil-water separation thin film. Firstly, an acyl halide reagent and filter paper react to generate a macroinitiator, hydrophobic monomers and the macroinitiator carry out ATRP, hydrophobic and oleophylic graft polymerization on the surface of the filter paper is achieved, and the filter paper with oil-water separation performance is obtained. The filter paper is used as a base material, the hydrophobic monomers are adopted for carrying out interface graft modification on the filter paper, hydrophobic and oleophylic performance is provided for the filter paper, and the preparation method can be applied to oil-water separation treatment such as sweater oil dirt, gasoline recycling and automobile clear filtering.

Description

technical field [0001] The invention relates to a separation film, in particular to a preparation method of a cellulose-based oil-water separation film. Background technique [0002] Ocean crude oil spills, oil field oil production sewage pollution, and organic chemical spills have caused extremely serious damage to people's living environment and even ecosystems. Gravity separation method, air flotation method, filtration method, adsorption method, coarse granulation method, ultrasonic method and other methods have been applied to oil-water separation. The research and development of oil-water separation means and its materials has become an important field in the filtration and separation industry. Research and development of durable and efficient oil-water separation materials is an urgent problem to be solved in human life and industrial production. [0003] Many methods have been used to hydrophobize filter paper, cotton cloth and other materials to make them hydropho...

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): C08J7/16B01D67/00B01D69/02B01D71/78C02F1/44C02F103/10
CPCC08J7/16B01D67/0006B01D69/02B01D71/78B01D2323/04C02F1/44C02F2103/007C02F2103/10C08J2301/02
Inventor 吴慧陈礼辉黄六莲林新兴巫龙辉肖禾曹石林
Owner FUJIAN AGRI & FORESTRY UNIV
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