Biocompatible nano-conductive fiber and preparation method thereof

A nano-conductive and biocompatible technology, applied in the field of biocompatible nano-conductive fibers and their preparation, can solve the problems of difficult degradation or recycling of materials, and achieve the effects of reasonable distribution, reasonable formula and wide application prospects

Inactive Publication Date: 2010-08-18
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these materials are difficult to degrade or recycle, and the resulting environmental protection problems are becoming more and more serious

Method used

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  • Biocompatible nano-conductive fiber and preparation method thereof
  • Biocompatible nano-conductive fiber and preparation method thereof
  • Biocompatible nano-conductive fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Add 5 parts by mass of surface hydroxylated carbon nanotubes and 1 part by mass of sodium dodecylsulfonate to a sufficient amount of chloroform, ultrasonically disperse, and add 100 parts by mass after the carbon nanotubes are uniformly dispersed polylactic acid, then add chloroform and add dimethyl sulfoxide, configure ultrasonic dispersion again, and prepare a spinning solution with a concentration of 6.5wt%, wherein the mass ratio of chloroform to dimethyl sulfoxide is 3: 1.

[0030] (2) Place the spinning solution prepared in step (1) in an electrospinning device, the distance between the spinneret and the receiving plate is 15cm, switch on the power supply and adjust the voltage to 20kV to start spinning, and obtain a biophase Compatible nano conductive fibers.

[0031] The mass ratio of the sum of the mass parts of chloroform and dimethyl sulfoxide to the sum of the mass parts of polylactic acid, carbon nanotubes and sodium dodecylsulfonate is 100:5-10.

[0...

Embodiment 2

[0035] (1) Add 10 parts by mass of surface hydroxylated carbon nanotubes and 1 part by mass of sodium dodecylsulfonate to a sufficient amount of chloroform, ultrasonically disperse, and add 100 parts by mass after the carbon nanotubes are uniformly dispersed polylactic acid, then add chloroform and add dimethyl sulfoxide, configure ultrasonic dispersion again, and prepare a spinning solution with a concentration of 6.5wt%, wherein the mass ratio of chloroform to dimethyl sulfoxide is 3: 1.

[0036] (2) Place the spinning solution prepared in step (1) in an electrospinning device, the distance between the spinneret and the receiving plate is 15cm, switch on the power supply and adjust the voltage to 20kV to start spinning, and obtain a biophase Compatible nano conductive fibers.

[0037]The mass ratio of the sum of the mass parts of chloroform and dimethyl sulfoxide to the sum of the mass parts of polylactic acid, carbon nanotubes and sodium dodecylsulfonate is 100:5-10.

[0...

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Abstract

The invention discloses a biocompatible nano-conductive fiber and a preparation method thereof. The biocompatible nano-conductive fiber comprises the following three components in part by mass: 100 parts of polylactic acid, 5 to 10 parts of carbon nano tubes and 1 part of sodium dodecyl sulfate. The three components are prepared into spinning solution by utilizing compound solvents, i.e. chloroform and dimethyl sulfoxide, and an electrostatic spinning device is used to spray to prepare the biocompatible nano-conductive fiber, wherein the fiber diameter is between 200 and 500nm; the carbon nano tubes are coated uniformly with the polylactic acid and are orderly arrayed in the fiber; the surfaces of the carbon nano tubes are subjected to hydroxylation; the mass percentage of hydroxy is 3.06 weight percent; the diameter of the carbon nano tubes is between 10 and 20nm; the length of the carbon nano tubes is 30mum; the purity of the carbon nano tubes is over 95 weight percent; and the specific surface area of the carbon nano tubes is over 200m<2>/g. The invention has advanced and simple process and reasonable formula. The prepared nano-conductive fiber has good biocompatibility and has wide application prospect.

Description

technical field [0001] The invention relates to a nanometer fiber with good biocompatibility and biodegradability and a preparation method thereof, in particular to a biocompatible nanometer conductive fiber with certain conductivity and a preparation method thereof. Background technique [0002] Traditional fiber preparation technology can only prepare fibers above the micron scale, but with the increasing development of nanotechnology today, people have begun to pay attention to making fibers into nanoscale sizes. Electrospinning is a new spinning technology that can prepare micro- and nano-scale fibers, so it has received extensive attention from researchers. So far, nanofibers have been successfully prepared from a variety of polymers by electrospinning technology, such as polyvinyl alcohol, polyacrylonitrile, polyimide, nylon, etc., and related research has been deepening day by day. However, most of these materials are difficult to degrade or recycle, and the resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/09D01D5/00D01D5/34
Inventor 吴德峰杨涛张明
Owner YANGZHOU UNIV
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