Method for producing conducting fiber

A manufacturing method and technology for conductive fibers, which are applied in the manufacturing of conductive/antistatic filaments, melt spinning, and conjugated synthetic polymer rayon, etc., can solve the problem of low production rate, poor post-processing performance, and manufacturing costs. Increase and other problems, to achieve the effect of good electrical conductivity and good wear resistance

Inactive Publication Date: 2009-09-16
WUXI AOLIN TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the preparation method of organic conductive fiber was as follows: the conductive powder was dispersed in a high polymer with good spinnability to make conductive fiber. Since more conductive components were added to the high polymer, the obtained fiber Low strength, low elongation, poor post-processing performance, almost impractical; composite spinning with high polymer containing conductive powder as one component and conventional polymer as the other component to obtain a composite type conductive fiber
Due to the high content of conductive powder in this kind of fiber, the rheological properties of its polymer are very poor, which makes the composite spinning more difficult, the spinneret replacement cycle is very short, the strength of the fiber is low, and the production rate is low. The cost is obviously increased; the conductive coating is applied to the surface of conventional fibers to form conductive fibers. Although this type of conductive fiber has high strength, the surface coating has poor wear resistance and chemical resistance, and it is easy to fall off and affect the use and performance.

Method used

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  • Method for producing conducting fiber
  • Method for producing conducting fiber
  • Method for producing conducting fiber

Examples

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Embodiment 1

[0029] Polypropylene containing 30% conductive carbon black and dry polyamide-6 are blended at a weight ratio of 2:3 under the action of 0.5% silane coupling agent to make a sea-island type conductive high polymer. Then the sea-island type conductive high polymer and polyamide-6 are dried separately, and spun by a two-component composite spinning machine to obtain the sea-island type conductive high polymer as the skin layer component, and polyamide-6 as the sheath core of the core layer component type composite conductive fibers. The ratio of the skin component to the core component is 1:1, and the breaking strength of the 22dtex / 3f conductive fiber is 3.5CN / dtex, the breaking elongation is 25.8%, and the electrical resistance is 3.5×10 -6 Ω / cm.

Embodiment 2

[0031] Polyethylene containing 30% conductive carbon black and dry polyamide-6 are blended at a weight ratio of 2:3 under the action of 0.5% silane coupling agent to make a sea-island type conductive high polymer. Then, the sea-island type conductive high polymer and polyamide-6 are dried separately, and spun by a two-component composite spinning machine to obtain a skin layer in which the sea-island type conductive high polymer is the skin layer component and polyamide-6 is the core layer component. Core type composite conductive fiber. The ratio of the skin component to the core component is 1.5:1, and the breaking strength of the 22dtex / 3f conductive fiber is 3.1CN / dtex, the breaking elongation is 28.0%, and the electrical resistance is 5.2×10 -6 Ω / cm.

Embodiment 3

[0033] Polypropylene containing 30% conductive carbon black and dry polyester are blended in a weight ratio of 1:3 under the action of 0.5% silane coupling agent to make a sea-island type conductive polymer. Then, the sea-island type conductive high polymer and the separately dried polyethylene terephthalate are spun by a two-component composite spinning machine to prepare the sea-island type conductive high polymer as a trilobal composite conductive fiber. The ratio of the sea-island type conductive high polymer component to the polyethylene terephthalate component is 1:4, and the breaking strength of the 22dtex / 3f conductive fiber is 3.5CN / dtex, and the breaking elongation is 32.0 %, the resistance is 4.2×10 -7 Ω / cm.

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Abstract

The invention relates to a method for producing conducting fiber, which comprises the following steps that: 1, a sea-island type conducting high polymer is prepared by using a high polymer containing conducting powder as an island phase and a high polymer incompatible with the island phase as a sea phase to blend; 2, a composite conducting fiber is prepared by performing bicomponent composite spinning by using the sea-island type conducting high polymer as a component and a linear high polymer compatible with the sea phase in the sea-island type conducting high polymer as another component, wherein the sea-island type conducting high polymer in proportion by weight is between 15 and 30 percent; 3, the content of the conducting powder in the composite fiber in proportion by weight is between 1.5 and 12 percent; and 4, the sea-island type conducting high polymer in the composite form of the bicomponent composite conducting fiber can be used as a cortex component, a core layer component, and the like.

Description

technical field [0001] The invention relates to a method for manufacturing conductive fibers, in particular to a method for manufacturing composite conductive fibers used for antistatic clothing fabrics. Background technique [0002] As we all know, synthetic fibers made of polymers such as polyester, nylon, polypropylene, acrylic, etc. are used as insulators, and a large amount of static electricity will be generated and accumulated during textile processing and the use of the garments, making textile processing difficult. increase; the static electricity carried by clothing will pose a great threat to the safety of production in petrochemical refineries, gas stations, oil depots, ammunition depots, etc.; it will cause a large number of integrated circuits in the microelectronics industry to be damaged; it will bring people's normal activities. inconvenient. And a kind of effective means that solves synthetic fiber clothing to easily generate static electricity is to add a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/09D01D5/08
Inventor 陶再荣潘艳艳
Owner WUXI AOLIN TEXTILE
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