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Composite fiber with excellent conductivity and method for manufacturing same

A composite fiber and high-conductivity technology, which is applied in the manufacture of conductive/antistatic filaments, fiber treatment, and conjugated synthetic polymer artificial filaments. It can solve the problems of easy fall-off of surface conductive substances and lower process pass rate.

Inactive Publication Date: 2011-06-01
HYOSUNG CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, for synthetic fibers whose conductive layer is exposed on the entire fiber surface, the carbon powder will fall off from the moving raw silk during the spinning and subsequent processing stages and reduce the process pass rate
In addition, the conductive material on the surface of the post-processed conductive fiber is also easy to fall off, and the problem of fibrillation (Fibrillation) occurs in the metal fiber during use.
In short, the practicality of the existing technology is questionable

Method used

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  • Composite fiber with excellent conductivity and method for manufacturing same
  • Composite fiber with excellent conductivity and method for manufacturing same
  • Composite fiber with excellent conductivity and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In order to obtain a figure 1 For the filaments with the cross-section shown, in this example, a thermoplastic conductive polymer containing carbon nanotubes is used as the second material, and the first material is ordinary nylon 6 with a relative viscosity of sulfuric acid of 3.0, and then composite spinning is performed on the two. . The composite ratio of the first material: the second material is 90:10 by weight. In the eccentric nozzle, the skin material is ordinary nylon 6, and the core material is conductive nylon containing 7% by weight of carbon nanotubes. The polymer discharged through the spinning nozzle is wound up at a speed of 1,000m / min into an undrawn filament of 180 denier (denier) 6 filaments, and then subjected to a thermal stretching process to produce 60 denier 6 filaments Drawn filaments of fibers. The characteristics of the conductive nylon composite fiber prepared according to the aforementioned method are shown in Table 1.

Embodiment 2

[0016] Except that the carbon nanotube content of the thermoplastic conductive polymer in the second material is increased to 15% by weight, the remaining parts are exactly the same as in the first embodiment.

reference example 1

[0018] Except that the carbon nanotube content of the thermoplastic conductive polymer in the second material is 4% by weight, the other parts are exactly the same as in Example 1.

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Abstract

The present invention relates to a making method for the composite conductive fiber with high electro-conductivity. Dispersing the carbon nanotubes as conductive agent to the thermoplastic high molecule to form the core material; making the non-conductive fiber material as surface material and compositely spinning with the two materials to get the center-eccentric type cross section, and then make the electro-conductive fiber with high electro-conductivity in the thermal stretch working procedure.

Description

technical field [0001] The invention relates to a method for manufacturing conductive composite fibers. Background technique [0002] Generally speaking, one of the disadvantages of chemical fibers such as polyamide fibers and polyethylene terephthalate (PET) fibers is that they are easily charged by static electricity. To overcome this disadvantage, synthetic fibers can be made conductive. The more typical method is to disperse carbon nanotubes as a conductive agent on thermoplastic polymers to form a core material and use a non-conductive fiber material as a skin material, and perform composite spinning of the two to produce conductive conductive fibers. Carbon nanotubes have a diameter of 10 to 100 nm, a length of about 1 to 40 μm, and a dispersion amount of usually 5 to 25% by weight. After the carbon nanotubes are dispersed into the polymer, the tunnel (Tunnel) effect caused by the carbon nanotubes being in contact with each other or very close to each other makes the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/34D01F1/10D01F8/12
CPCD01D5/34D01F1/09D01F8/12D10B2331/02D10B2331/04D10B2401/16
Inventor 郑浩圭李泰均权益铉
Owner HYOSUNG CORP
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