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

Method for preparing magnetic super-hydrophobic sponge materials

A super-hydrophobic sponge and magnetic technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., to achieve excellent hydrophobic properties, economical and environmentally friendly preparation methods, and quick recovery effects

Inactive Publication Date: 2018-08-17
HANGZHOU NORMAL UNIVERSITY
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a magnetic superhydrophobic sponge material, using Fe 3 o 4 The particles build a micro-nano rough structure on the surface of the sponge, and polydimethylsiloxane is used to fix the nanomaterials, thereby preparing a magnetic super-hydrophobic sponge material, which can absorb oil or solvent dozens of times its own volume, and can be used for oil Efficient separation and convenient recovery of organic solvent and water mixture

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 magnetic super-hydrophobic sponge materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of preparation method of magnetic superhydrophobic sponge material, described method comprises the steps:

[0027] (1) Cleaning and pretreatment of the sponge: immerse the polyurethane sponge as a whole in deionized water, ultrasonically clean it at 40KHZ and 50W for 2 hours, take it out and dry it, then put it into an ultrasonic cleaning device equipped with acetone for ultrasonic cleaning for 2 hours, and the cleaning is completed Finally, take out the sponge and squeeze out the organic solvent to dry the sponge to get a spare sponge;

[0028] (2) Modified Fe 3 o 4 Solution preparation

[0029] 50 parts by mass of Fe 2 (SO 4 ) 3 9H 2 O and FeSO 4 ·7H 2 O mixture (Fe 2 (SO 4 ) 3 9H 2 O and FeSO 4 ·7H 2 The molar ratio of O is 2:1), added to the reactor containing 300 parts by mass of water and stirred evenly, and N was passed into the water containing the mixture 2 Gas, raise the temperature of the water bath to 60°C, slowly add 20 parts of ammoni...

Embodiment 2

[0036] A kind of preparation method of magnetic superhydrophobic sponge material, described method comprises the steps:

[0037] (1) Cleaning pretreatment of the sponge: immerse the polyether sponge as a whole in an ultrasonic cleaning device equipped with deionized water, ultrasonically clean it at 40KHZ and 100W for 2 hours, take it out and dry it, and then put it into an ultrasonic cleaning device filled with absolute ethanol. Ultrasonic cleaning in the cleaning device for 1.5 hours, take out the sponge, squeeze out the solvent and dry it for later use;

[0038] (2) Modified Fe 3 o 4 Solution preparation

[0039] 60 parts by mass of Fe 2 (SO 4 ) 3 9H2O and FeCl 2 4H 2 O (the molar ratio of which is 2:1), was added into the reaction kettle containing 350 parts by mass of water and stirred evenly, and N 2 Gas, raise the temperature of the water bath to 80°C, slowly add 30 parts of sodium hydroxide, then slowly add 15 parts of hexadecyltrichlorosilane within 1.5 hours,...

Embodiment 3

[0046] A kind of preparation method of magnetic superhydrophobic sponge material, described method comprises the steps:

[0047] (1) Cleaning and pretreatment of the sponge: immerse the melamine sponge as a whole in an ultrasonic cleaning device equipped with deionized water, ultrasonically clean it at 30KHZ and 200W for 1 hour, take it out and dry it, and then put it into an ultrasonic cleaner filled with isopropanol. Ultrasonic cleaning in the cleaning device for 1.5 hours, take out the sponge, squeeze out the solvent and dry it for later use;

[0048] (2) Modified Fe 3 o 4 Solution preparation

[0049] 80 parts by mass of FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 O (the molar ratio of which is 2:1), was added to the reaction kettle containing 400 parts by mass of water and stirred evenly, and N 2 Gas, raise the temperature of the water bath to 70°C, slowly add 35 parts of potassium hydroxide, then slowly add 20 parts of octaalkyltrimethoxysilane within 1 hour, keep stirring fo...

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
Water contact angleaaaaaaaaaa
Water contact angleaaaaaaaaaa
Water contact angleaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing magnetic super-hydrophobic sponge materials. The method includes steps of carrying out cleaning pretreatment on sponges; preparing modified Fe3O4 solution; preparing polydimethylsiloxane solution; preparing magnetic super-hydrophobic sponges. The method has the advantages that the method is economical, environmentally friendly and simple and is high in efficiency, oil or solvents with the volumes dozens of times the volumes of the magnetic super-hydrophobic sponge materials prepared by the aid of the method can be absorbed by the magnetic super-hydrophobic sponge materials, the magnetic super-hydrophobic sponge materials are excellent in oil or organic solvent and water separating capacity, and the oil or the solvents can be quickly recycled by the aid of the magnetic super-hydrophobic sponge materials; the magnetic super-hydrophobic sponge materials are excellent in compression resistance and can be recycled.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a preparation method of a magnetic superhydrophobic sponge material. Background technique [0002] With the rapid development of offshore oil exploration and the chemical industry, people's demand for crude oil and solvents and other chemicals is gradually increasing, and accidents such as oil and chemical storage and transportation leakage are becoming more and more frequent, causing serious damage to the ecological environment. At present, a large amount of oily wastewater caused by oil, chemical spills and industrial discharges has become a major challenge to the environment. How to properly deal with such accidents and reduce the harm caused by accidents to the environment has attracted widespread attention from governments and the public in various countries . Efficient adsorption and rapid separation of oily liquids is an effective way to deal with such events, and the ...

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): C08J9/40C08J9/42C08J9/36C08L75/04C08L71/00C08L61/28B01D17/022
CPCB01D17/0202C08J9/36C08J9/40C08J9/42C08J2361/28C08J2371/00C08J2375/04
Inventor 裴勇兵刘春吴连斌方袁烽汤龙程肖文军
Owner HANGZHOU NORMAL 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