Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of superhydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles and its preparation method

A technology of nanoparticles and foam materials, which is applied in the field of superhydrophobic oil-absorbing foam materials, can solve the problems of single size of modified particles, lack of chemical connection between particles and foam matrix, etc., achieve low cost, improve particle adhesion, and improve stability Effect

Active Publication Date: 2021-01-19
SOUTH CHINA UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the oil-absorbing foam material in the prior art, such as the single size of the modified particle and the lack of chemical connection between the particle and the foam matrix, the present invention provides a super-hydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles

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
  • A kind of superhydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles and its preparation method
  • A kind of superhydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles and its preparation method
  • A kind of superhydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Weigh 100 mg of silicon dioxide, 10 mg of nanocellulose and 10 mg of nanoclay respectively, put them into a dry flask, add anhydrous dimethylformamide, seal the flask and ultrasonically for 1 hour to fully disperse the nanoparticles, and prepare the mass concentration 5% silica / nanocellulose / nanoclay nanoparticle mixture;

[0045](2) Polyurethane foam is cleaned and dried in 70vol% ethanol solution to clean the surface; the dried foam material is immersed in a toluene solution containing 10wt% toluene diisocyanate, sealed and reacted with stirring at 70° C. for 1 hour, A modified foam material is obtained;

[0046] (3) Take out the modified foam material and quickly immerse it in the silicon dioxide / nanocellulose / nanoclay nanoparticle mixed solution prepared in step (1), seal it and stir and react at 70°C for 3 hours to obtain a surface-adhesive mixture. Foam materials of branched nanoparticles;

[0047] (4) The foam material of the surface-grafted nanoparticles i...

Embodiment 2

[0052] (1) Weigh 10 mg of titanium dioxide, 100 mg of carbon nanotubes and 100 mg of graphene oxide respectively, put them into a dry flask, add anhydrous dimethyl sulfoxide, and seal the flask with ultrasonic for 2 hours to fully disperse the nanoparticles. The prepared mass concentration is 1 % of titanium dioxide / carbon nanotubes / graphene oxide nanoparticle mixed solution;

[0053] (2) Polyurethane foam is cleaned and dried in 70vol% ethanol solution to clean the surface; the dried foam material is immersed in a toluene solution containing 10wt% toluene diisocyanate, sealed and reacted with stirring at 90°C for 3 hours, A modified foam material is obtained;

[0054] (3) Take out the modified foam material and quickly immerse it in the titanium dioxide / carbon nanotube / graphene oxide nanoparticle mixture prepared in step (1), seal it and stir and react at 90°C for 1 hour to obtain surface grafting nanoparticle foam material;

[0055] (4) Repeat step (2) and step (3) twice t...

Embodiment 3

[0060] (1) Weigh 100 mg of titanium dioxide, 50 mg of halloysite and 50 mg of graphene oxide respectively, put them into a dry flask, add anhydrous dimethyl sulfoxide, and seal the flask with ultrasonic for 1.5 hours to fully disperse the nanoparticles. The prepared mass concentration is 3 % titanium dioxide / halloysite / graphene oxide nanoparticle mixture;

[0061] (2) Polyurethane foam is cleaned and dried in 70vol% ethanol solution to clean the surface; the dried foam material is immersed in a toluene solution containing 10wt% isophorone diisocyanate, sealed and reacted with stirring at 80°C 2 hours, obtain the modified foam material;

[0062] (3) Take out the modified foam material and quickly immerse it in the titanium dioxide / halloysite / graphene oxide nanoparticle mixture prepared in step (1), seal it and stir it at 80°C for 2 hours to obtain surface grafting nanoparticle foam material;

[0063] (4) Step (2) and step (3) are repeated to graft two layers of composite nano...

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 multi-dimensional nano-particle modified super-hydrophobic oil-absorbing foam material and a preparation method thereof. According to the method, nano particles of different dimensions are grafted on the surface of a three-dimensional foam material by covalent bonds through a dual-functional group chemical modification method, and further, hydrophobic modification is performed by using a simple silane coupling agent, so that the super-hydrophobic oil-absorbing foam material is acquired. In the method, particle adhesion is improved effectively through chemical grafting, multi-layer modification by nano particles is realized by grafting repeatedly, so as to regulate the surface roughness of the material. The super-hydrophobic oil-absorbing foam material overcomes defects of single size of particles and poor adhesion on a matrix, is prepared through a simple process, is low-cost, and can be produced in a large scale.

Description

technical field [0001] The invention relates to the technical field of surface-functionalized nanocomposite materials, in particular to a superhydrophobic oil-absorbing foam material modified by multi-dimensional nanoparticles. Background technique [0002] In recent years, offshore oil spills and organic solvent pollution have caused serious damage to water resources. The development of efficient, practical, low-cost and recyclable superhydrophobic oil-absorbing foam materials has received more and more attention. The principle used by superhydrophobic oil-absorbing materials is that the surface tension of oil is lower than that of water. When the surface roughness of the material is high enough and the surface energy is low enough, the water can remain in a non-wetting state on the surface of the material and the oil can be in a wetting state, thereby The oil is drawn into the interior of the foam by capillary action. Therefore, increasing the surface roughness of the mat...

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 Patents(China)
IPC IPC(8): C08J9/40C08J9/42C08J9/00C08L75/04C08L61/28
CPCC08J9/00C08J9/40C08J9/42C08J2361/28C08J2375/04
Inventor 米皓阳经鑫况太荣刘通
Owner SOUTH CHINA UNIV OF TECH