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

Hydrophobic-superoleophylic sponge as well as preparation method and application thereof

A super-oleophilic and sponge technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problem of loss of hydrophobic and lipophilic properties on the surface of materials, affecting selectivity and reusability, and complicated operation of the modification process and other problems, to achieve the effect of excellent separation ability, convenient large-scale production, and short experimental cycle

Active Publication Date: 2018-11-16
HUNAN AGRICULTURAL UNIV
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these modified sponges have fatal problems such as poor mechanical stability during use: slight friction and touch will cause the surface of the material to lose hydrophobic and lipophilic properties, thereby affecting its selectivity and reusability. Modified materials are relatively expensive, and the modification process is complicated

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
  • Hydrophobic-superoleophylic sponge as well as preparation method and application thereof
  • Hydrophobic-superoleophylic sponge as well as preparation method and application thereof
  • Hydrophobic-superoleophylic sponge as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] A kind of preparation method of hydrophobic-super lipophilic sponge of the present invention, comprises the following steps:

[0035] (1) Pretreatment of the sponge: wash the melamine sponge with 75%-100% ethanol and water repeatedly for 3 times, then place it in an oven at 50-80°C, and dry it for 12-24 hours.

[0036] (2) Modification of kaolin: add 0.15-0.3g of perfluorooctanoic acid (PFOA) and 0.015-0.03g of sodium hydroxide into 3-6mL of ethanol and stir until dissolved, then add 1.5-3g of kaolin (chemically pure), ultrasonic for 10-20min , the mixed solution was transferred to a round-bottomed flask, placed in a preheated water bath (52°C), and subsequently, 0.05-0.1mL diethoxydimethylsilane (DEDMS) was added to the mixed solution, stirred, and reacted After 0.5-1 hour, the obtained product solution is dried in an oven at 50-80° C. for 1-2 hours to obtain modified kaolin powder.

[0037] (3) Preparation of silanized modified kaolin suspension: take the modified ka...

Embodiment 1

[0041] A kind of hydrophobic-super-oleophilic sponge of the present invention, this hydrophobic-super-oleophilic sponge is mainly prepared by using melamine sponge as a carrier and loading modified kaolin in the melamine sponge, and the modified kaolin mainly adopts solvent volatilization method, by Modified perfluorooctanoic acid (PFOA).

[0042] A kind of preparation method of the hydrophobic-super lipophilic sponge of above-mentioned present implementation, comprises the following steps:

[0043] (1) Pretreatment of the sponge: firstly, a 2cm×2cm×2cm melamine sponge was repeatedly washed three times with 100% ethanol and water, placed in an oven at 50° C., and dried for 24 hours.

[0044] (2) Modification of kaolin: Add 0.15g of perfluorooctanoic acid (PFOA) and 0.015g of sodium hydroxide into 3.6mL of ethanol and stir until dissolved, then add 1.5g of kaolin powder Kaolin, sonicate for 20min, and transfer the mixture to a round bottom flask , placed in a preheated water b...

Embodiment 2

[0051] A kind of preparation method of hydrophobic-super lipophilic sponge of the present invention, comprises the following steps:

[0052] (1) Pretreatment of the sponge: firstly, a 2cm×2cm×2cm melamine sponge was repeatedly washed three times with 100% ethanol and water, placed in an oven at 50° C., and dried for 24 hours.

[0053] (2) Modification of kaolin: Add 0.15g of perfluorooctanoic acid (PFOA) and 0.015g of sodium hydroxide into 3.6mL of ethanol and stir until dissolved, then add 1.5g of kaolin powder Kaolin, sonicate for 20min, and transfer the mixture to a round bottom flask , placed in a preheated water bath (52°C), then, 0.05mL diethoxydimethylsilane (DEDMS) was added to the mixture, stirred, reacted for 0.5h, and the obtained product solution was placed at 50°C Oven drying for 2 hours to obtain modified kaolin powder.

[0054] (3) Preparation of silanized modified kaolin suspension: Weigh 0.15 g of modified kaolin powder treated in step (2) and disperse in 100...

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 hydrophobic-superoleophylic sponge as well as a preparation method and application thereof. The hydrophobic-superoleophylic sponge is prepared by loading modified kaolin ontoa melamine sponge which is used as a carrier. The preparation method comprises the following steps of (1) washing the melamine sponge by ethyl alcohol and water, and drying for further use; (2) modifying the kaolin powder; (3) preparing a silylated modified kaolin turbid liquid; (4) soaking the pretreated melamine sponge by the silylated modified kaolin turbid liquid, so as to obtain the hydrophobic-superoleophylic sponge. The hydrophobic-superoleophylic sponge has the advantages that the adsorption capacity is high, the adsorption speed is quick, and the separation and recycling are easy; the preparation method is simple and efficient, and the cost is low; the hydrophobic-superoleophylic functional sponge material has good oil / organic solvent and water separating ability, and can be usedfor selectively adsorbing the oily liquid, and separating the oil and water.

Description

technical field [0001] The invention belongs to the field of preparation and application of environmental functional materials, and relates to a sponge and its preparation method and application, in particular to a hydrophobic-superoleophilic sponge and its preparation method and application. Background technique [0002] The main source of oil pollution in water bodies is human activities. Since the beginning of the last century, oil has become one of the most important energy sources for human beings, and the production and consumption of oil have increased rapidly. Since 1993, my country has transformed from an oil exporter to a net oil importer. The quantity of oil imports has continued to rise, and the volume of oil transportation along the coast has increased significantly. 90% of the imported oil is transported by sea ships. The frequent occurrence in my country's waters has made the already very busy navigation environment more complicated, leading to increased risks ...

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): C08J9/40C08L61/28B01D17/022
CPCB01D17/0202C08J9/40C08J2361/28
Inventor 陈安伟王宇杰刘小慧尚翠罗斯
Owner HUNAN AGRICULTURAL UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com