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Styrene-maleic anhydride copolymer/carbon nanotube non-woven fabric and preparation method thereof

A technology of acidifying carbon nanotubes and carbon nanotubes, which is applied in the direction of single-component synthetic polymer rayon, non-woven fabrics, filament/thread forming, etc., can solve the problems of poor mechanical properties and weak anti-fouling properties, and achieve Enhanced mechanical strength, extended service life, and low raw material costs

Inactive Publication Date: 2019-05-17
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a single polymer membrane or nanofiber membrane is used as a separation material, there are generally problems such as poor mechanical properties and weak anti-fouling properties.

Method used

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  • Styrene-maleic anhydride copolymer/carbon nanotube non-woven fabric and preparation method thereof
  • Styrene-maleic anhydride copolymer/carbon nanotube non-woven fabric and preparation method thereof
  • Styrene-maleic anhydride copolymer/carbon nanotube non-woven fabric and preparation method thereof

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Embodiment 1

[0028] The invention discloses an oil-water separation non-woven membrane material, which is made by grafting and coating carbon nanotubes after acidification treatment by PSMA, treating them by electrospinning, and then spraying an aqueous solution of fluorocarbon surfactant on them. The mass ratio of acidified carbon nanotubes to PSMA is 0.008:1; the diameter of carbon nanotubes is 40-50 nm, and the length is 5 μm-10 μm; the concentration of spinning solution for electrospinning is 25% (g / ml), and the voltage is 15KV, the distance between the electrospinning needle and the collecting plate is 9cm, the advancing speed is 0.05mm / min, the aqueous solution concentration of fluorocarbon surfactant is 2%; the relative molecular weight of PSMA is 30,000-80,000.

[0029] The preparation method of the above-mentioned oil-water separation non-woven fabric is to coat a layer of PSMA on the surface of the carbon nanotube by in-situ polymerization, and then react with the fluorocarbon sur...

Embodiment 2

[0043]The invention discloses an oil-water separation non-woven membrane material, which is made by grafting and coating carbon nanotubes after acidification treatment by PSMA, treating them by electrospinning, and then spraying an aqueous solution of fluorocarbon surfactant on them. The mass ratio of acidified carbon nanotubes to PSMA is 0.005:1; the diameter of carbon nanotubes is 60-80 nm, and the length is 10 μm-15 μm; the concentration of spinning solution for electrospinning is 35% (g / ml), and the voltage is 20KV, the distance between the electrospinning needle and the collecting plate is 10cm, the advancing speed is 0.01mm / min, the aqueous solution concentration of fluorocarbon surfactant is 3%; the relative molecular weight of PSMA is 90,000-150,000.

[0044] The preparation method of the above-mentioned oil-water separation non-woven fabric is to coat a layer of PSMA on the surface of the carbon nanotube by in-situ polymerization, and then react with the fluorocarbon s...

Embodiment 3

[0052] The invention discloses an oil-water separation non-woven membrane material, which is made by grafting and coating carbon nanotubes after acidification treatment by PSMA, treating them by electrospinning, and then spraying an aqueous solution of fluorocarbon surfactant on them. The mass ratio of acidified CNTs to PSMA is 0.01:1; the diameter of carbon nanotubes is 10-20 nm, and the length is 10 μm-15 μm; the concentration of spinning solution for electrospinning is 45% (g / ml), and the voltage is 18KV. The distance between the electrospinning needle and the collecting plate is 12cm, the advancing speed is 0.01mm / min, the aqueous solution concentration of fluorocarbon surfactant is 2%; the relative molecular weight of PSMA is 200,000-300,000.

[0053] The preparation method of the above-mentioned oil-water separation membrane is to coat a layer of PSMA on the surface of carbon nanotubes by in-situ polymerization, and then react with fluorocarbon surfactants through electro...

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Abstract

The invention discloses a styrene-maleic anhydride copolymer / carbon nanotube non-woven fabric and a preparation method thereof. The preparation method comprises the following steps: 1), preparing acidified carbon nanotubes; 2), preparing carbon nanotube / PSMA; 3), dissolving the carbon nanotube / PSMA obtained in the step 2) in N,N-dimethylformamide to obtain a spinning solution; 4), electrospinningthe spinning solution to obtain a non-woven fabric; 5), spraying a fluorocarbon surfactant solution to the non-woven fabric obtained in step 4). According to the non-woven fabric, the carbon nanotubescan be uniformly dispersed in a styrene-maleic anhydride copolymer by surface functionalization, and mechanical strength of the non-woven fabric is enhanced; in the electrospinning process, the endsof the carbon nanotubes can be exposed from the surfaces of fibers, and the surfaces of the fibers are endowed with a heterostructure; the surface of each fiber can contain fluorine atoms by interaction between the fibers and a fluorocarbon surfactant, so that the oleophobic property of the fiber non-woven fabric can be maximized, and oil-water separation is facilitated..

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a styrene-maleic anhydride copolymer / carbon nanotube non-woven fabric and a preparation method thereof. Background technique [0002] Traditional oil-water separation methods include physical methods and chemical methods: physical methods such as activated carbon, organic clay, zeolite, polypropylene non-woven fabrics, etc. will absorb water while absorbing oil, making the separation process cumbersome and inefficient; chemical methods such as oxidation, electrolysis, etc. Chemical processes, photocatalytic treatment, ozone treatment and demulsification will use toxic compounds, which will increase costs and produce secondary pollution. In the past ten years, the application of membrane technology has become an important separation technology. Its advantages are that it can work without adding other chemicals, has low energy demand, and the process is simple a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4326D04H1/728D01D5/00D01F6/96C08G83/00D06M15/256D06M101/30
Inventor 郭雅妮鲍世轩文轩张宇杜飞鹏
Owner WUHAN INSTITUTE OF TECHNOLOGY
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