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Fibre structure of polyester/carbone nanotube nano composite and its preparation method

A nano-composite material and fiber structure technology, applied in the direction of fiber processing, single-component polyester artificial filament, filament/wire forming, etc., to achieve the effect of improving the degree of orientation

Inactive Publication Date: 2006-11-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above that although there have been some researches in the field of electrospinning of polyester, there is still a blank in the preparation of polyester / carbon nanotube nanocomposites by electrospinning technology.

Method used

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  • Fibre structure of polyester/carbone nanotube nano composite and its preparation method
  • Fibre structure of polyester/carbone nanotube nano composite and its preparation method
  • Fibre structure of polyester/carbone nanotube nano composite and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Add 0.01g of single-walled carbon tubes and 0.99g of polybutylene terephthalate into a 50mL weighing bottle containing 20mL of dichloroacetic acid, perform ultrasonic treatment (200W, 40kHz), and magnetically stir to obtain a uniform solution. Then take 1mL of the solution and put it in the liquid reservoir of the metering pump, and collect the obtained fibers on the grounded aluminum foil at the injection speed of 1mL / h and the working distance of 1kV / cm. The fiber diameter measured by SEM is about 100nm.

Embodiment 2

[0039] Add 0.005g of multi-walled carbon tubes and 0.995g of polyethylene terephthalate to a 25mL weighing bottle filled with 10mL of equal volume ratio of dichloromethane and trifluoroacetic acid mixed solvent, ultrasonic treatment (100W, 40kHz) , magnetically stirred to obtain a homogeneous solution. Then take 1mL of the solution and put it in the liquid reservoir, and under the condition of 1kV / cm working distance, the obtained fibers are collected on the grounded aluminum foil. The fiber diameter measured by SEM is about 500nm. The electrical conductivity of the nonwoven film measured by the two-electrode method was 7.4×10 -16 S / cm. The non-woven membrane is semi-hydrophobic, and the contact angle with water is about 100 degrees. The non-woven membrane can permeate small molecules such as water, acetone, ethanol, etc., but can intercept particles such as montmorillonite dispersed in water. figure 2 It is a real photo of the non-woven membrane after repeated suction fi...

Embodiment 3

[0041] 0.1g of multi-walled carbon tubes and 0.9g of polyethylene naphthalate were added to a 50mL weighing bottle filled with 20mL of hexafluoroisopropanol, ultrasonically treated (100W, 40kHz) for 0.5h, and magnetically stirred to obtain a uniform solution. Then take 1mL of the solution and put it in the reservoir, and at the working distance of 2kV / cm, the obtained fibers are collected on the grounded aluminum foil. The fiber diameter measured by SEM is about 100nm.

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Abstract

The invention relates to the fiber structure of polyester / carbon nanometer tube nanometer compound material that includes the fiber and the non-woven fabrics or film made by the fiber. Distributing the carbon nanometer tube and polyester into suitable polyester solution to form polyester / carbon nanometer tube solution or dispersing liquid, and gaining the fiber structure by static electric spinning that includes the non-woven fabrics or film of the fiber. The carbon nanometer occupies 0.001-90wt% in the material, and the diameter of the fiber is 1-10000nm, and optimization to 10-1000nm. The volume conductivity is 1*10-17-102S / cm. It has wide application prospect in kinds of fields.

Description

technical field [0001] The invention belongs to the field of carbon nanotube nanocomposite materials, in particular to a fiber structure of polyester / carbon nanotube nanocomposite materials, including fibers and a preparation method for non-woven fabrics or films made of such fibers. Background technique [0002] Carbon nanotubes, also known as carbon nanotubes, carbon nanotubes, carbon nanotubes, fuller tubes or bucky tubes, are quasi-one-dimensional materials formed by curling graphite-like layers. The number of graphite layers can be divided into single-walled carbon nanotubes and multi-walled carbon nanotubes. The diameter can be 0.4-500nm, the length is 0.1-10000μm, and the aspect ratio is very large (hundreds or even thousands). Carbon nanotubes have excellent electrical, mechanical and thermal properties: the elastic modulus can reach up to 1TPa, the thermal conductivity can reach twice that of diamond, and the current transport capacity can be as high as 1000 times t...

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
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Application Information

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IPC IPC(8): D01F6/62C08L67/03C08K3/04D01D5/00
Inventor 阳明书胡广君张世民
Owner INST OF CHEM CHINESE ACAD OF SCI
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