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

Preparation method of graphene-modified hydrophobic oil-absorbing sponge

A technology of oil-absorbing sponge and graphene, which is applied in the field of preparation of graphene hydrophobic oil-absorbing sponge, can solve the problems that graphene materials have not been reported, and achieve the effect of large porosity, high oil absorption performance and improved selective adsorption

Inactive Publication Date: 2018-12-14
JINAN JIAXING TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies involving graphene materials with both superhydrophobic and superoil-absorbing properties have not been reported so far

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] A preparation method of graphene hydrophobic oil-absorbing sponge, comprising the following steps:

[0019] (1) Clean the polyurethane sponge in absolute ethanol for min, dry it in a vacuum drying oven, and set aside;

[0020] (2) Preparation of graphene oxide solution: Add natural graphite to concentrated sulfuric acid under ice bath conditions, and keep stirring, add potassium permanganate, and heat up to react, then use hydrogen peroxide, dilute hydrochloric acid and deionized water respectively Wash, then add deionized water for ultrasonic treatment, add deionized water to dilute into a graphene oxide solution with a concentration of 1 mg / mL;

[0021] (3) Add the graphene oxide solution and dimethylacetamide obtained in step (2) into a beaker respectively, and ultrasonically oscillate for 3 hours to disperse graphene evenly in dimethylacetamide to obtain a dispersed mixed solution; graphene and dimethylacetamide The mass ratio of dimethylacetamide is 8:4

[0022] ...

Embodiment 2

[0026] A preparation method of graphene hydrophobic oil-absorbing sponge, comprising the following steps:

[0027] (1) Wash the polyurethane sponge in absolute ethanol for 20 minutes, dry it in a vacuum oven, and set aside;

[0028] (2) Preparation of graphene oxide solution: Add natural graphite to concentrated sulfuric acid under ice bath conditions, and keep stirring, add concentrated sulfuric acid, and heat up to react, and then wash with hydrogen peroxide, dilute hydrochloric acid and deionized water respectively, Then add deionized water for ultrasonic treatment, add deionized water to dilute into a graphene oxide solution with a concentration of 10mg / mL;

[0029] (3) Add the graphene oxide solution and dimethylacetamide obtained in step (2) into a beaker respectively, and ultrasonically oscillate for 6 hours to uniformly disperse graphene in dimethylacetamide to obtain a dispersed mixed solution; graphene and dimethylacetamide The mass ratio of dimethylacetamide is 8:1...

Embodiment 3

[0034] A preparation method of graphene hydrophobic oil-absorbing sponge, comprising the following steps:

[0035] (1) Wash the polyurethane sponge in absolute ethanol for 13 minutes, dry it in a vacuum drying oven, and set aside;

[0036] (2) Preparation of graphene oxide solution: Add natural graphite to concentrated sulfuric acid under ice bath conditions, and keep stirring, add hydrogen peroxide, and heat up to react, then wash with hydrogen peroxide, dilute hydrochloric acid and deionized water respectively, and then Add deionized water for ultrasonic treatment, add deionized water to dilute to a graphene oxide solution with a concentration of 4 mg / mL;

[0037] (3) Add the graphene oxide solution and dimethylacetamide obtained in step (2) into a beaker respectively, and ultrasonically oscillate for 4 hours to uniformly disperse graphene in dimethylacetamide to obtain a dispersed mixed solution; graphene and dimethylacetamide The mass ratio of dimethylacetamide is 8:6

...

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 graphene-modified hydrophobic oil-absorbing sponge. The preparation method comprises the following steps: washing polyurethane sponge in absolute ethanolfor 10-20min, and drying in a vacuum drying oven; preparing a graphene oxide solution; adding the graphene oxide solution and dimethylacetamide into a beaker respectively to obtain a dispersed mixedsolution; adding the dispersed mixed solution and polybutyl methacrylate into a three-necked flask respectively, placing in a water bath, and debubbling to obtain a homogeneous solution; immersing thewashed polyurethane sponge in the homogeneous solution for 10-30 minutes, taking out, and putting into a sealed container containing distilled water for 3-6 days; taking out the polyurethane sponge,then placing in distilled water for 24 hours, and then putting into a vacuum freeze dryer for 12-24 hours to obtain the graphene-modified hydrophobic oil-absorbing sponge. By the preparation method ofthe graphene-modified hydrophobic oil-absorbing sponge, the gap ratio is large, the oil-absorbing performance is high, the rebounding compressibility is good, and the selective adsorption thereof isimproved through hydrophobic modification of graphene.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a preparation method of a graphene hydrophobic oil-absorbing sponge. Background technique [0002] Recently, solid surfaces with superhydrophobic (water contact angle >150°) and superoleophilic (oil contact angle <5°) have attracted much attention due to their ability to selectively adsorb oils or organic solvents without absorbing water at all. Keep an eye on and research interests. Based on this, many efficient adsorption materials have been extensively studied, including inorganic nanowire films, microporous polymers, carbon nanotubes, etc. However, these materials are costly and complicated to produce, making it difficult to mass-produce them for practical applications. In addition, more research has recently turned its attention to finding solutions to the severe water pollution problems worldwide due to oil spills and chemical spil...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C08J9/42C08L75/04
CPCC08J9/40C08J9/42C08J2375/04
Inventor 张成如
Owner JINAN JIAXING TECH
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