Conductive core-sheath compound fibre and preparation method thereof

A composite fiber and manufacturing method technology, applied in the direction of fiber processing, fiber chemical characteristics, conjugated synthetic polymer man-made filaments, etc., can solve the problems of easy falling off of carbon black, poor hand feeling, and difficulty in uniform distribution of carbon black.

Active Publication Date: 2011-04-20
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the carbon black is easy to fall off, the hand feel is not good, and the carbon black is not easy to distribute evenly on the surface of the fiber.

Method used

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  • Conductive core-sheath compound fibre and preparation method thereof
  • Conductive core-sheath compound fibre and preparation method thereof
  • Conductive core-sheath compound fibre and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] In this embodiment, the core layer is polyethylene terephthalate PET, the skin layer is a tin-bismuth metal alloy, and the weight ratio of tin:bismuth is 70:30.

[0079] (a) The weight ratio of the skin layer component to the core layer component is 13:87,

[0080] (b) 1.5 ≤ fineness (dtex) ≤ 20,

[0081] (c) 1.8≤breaking strength (cN / dtex)≤4.5,

[0082] (d) 10≤ breaking elongation (%)≤100,

[0083] (e) The volume specific resistance of the fiber is 1.0×10 -5 ~1.0×10 3 Ω·cm,

[0084] (f) The fiber surface coverage rate of the leather component is ≥90%,

[0085] (g) The shrinkage rate in hot water at 100°C is ≤15%.

[0086] The cross-sectional shape of the fiber is figure 1 Shown.

[0087] The manufacturing method of this embodiment adopts a composite extrusion method. The raw materials of the above-mentioned skin-core components are respectively processed into a melt through an electric heating furnace and a screw extruder. The melting temperature of the skin material is 149~186℃, ...

Embodiment 2

[0090] In this embodiment, the core layer is PPS, and the skin layer is bismuth metal.

[0091] (a) The weight ratio of the skin layer component to the core layer component is 18:82,

[0092] (b) 1.5 ≤ fineness (dtex) ≤ 20,

[0093] (c) 1.8≤breaking strength (cN / dtex)≤4.5,

[0094] (d) 10≤ breaking elongation (%)≤100,

[0095] (e) The volume specific resistance of the fiber is 1.0×10 -5 ~1.0×10 3 Ω·cm,

[0096] (f) The fiber surface coverage rate of the leather component is ≥90%,

[0097] (g) The shrinkage rate in hot water at 100°C is ≤15%.

[0098] The cross-sectional shape of the fiber is figure 2 Shown.

[0099] The manufacturing method of this embodiment adopts a composite extrusion method. According to the above-mentioned skin-core components, the raw materials are processed into a melt through an electric heating furnace and a screw extruder. The melting temperature of the skin material is 270~290℃, and the melting temperature of the core material is 330~350℃ . Then they are tran...

Embodiment 3

[0102] In this embodiment, the core layer is nylon 66, and the skin layer is tin metal.

[0103] (a) The weight ratio of the skin layer component to the core layer component is 75:25,

[0104] (b) 1.5 ≤ fineness (dtex) ≤ 20,

[0105] (c) 1.8≤breaking strength (cN / dtex)≤4.5,

[0106] (d) 10≤ breaking elongation (%)≤100,

[0107] (e) The volume specific resistance of the fiber is 1.0×10 -5 ~1.0×10 3 Ω·cm,

[0108] (f) The fiber surface coverage rate of the leather component is ≥90%,

[0109] (g) The shrinkage rate in hot water at 100°C is ≤15%.

[0110] The cross-sectional shape of the fiber is figure 1 Shown.

[0111] The manufacturing method of this embodiment adopts a composite extrusion method. The raw materials according to the above-mentioned skin and core components are respectively processed into a melt through an electric heating furnace and a screw extruder, wherein the melting temperature of the skin material is 230-250°C, and the melting temperature of the core material is 280-3...

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Abstract

The invention relates to a conductive core-sheath compound fibre and a preparation method thereof, in particular to a conductive core-sheath compound fibre of which the sheath layer component is metal or metal alloy and the core layer component is thermoplastic high polymer, and a preparation method thereof, wherein the weight ratio of the sheath layer component of the compound fibre to the core layer component is 10 / 90-30 / 70; and the metal of the sheath layer is selected from indium, tin, bismuth or cadmium. As the sheath layer of the compound fibre in the invention uses metal or metal alloy, the antistatic property, conductivity and radiation-proof property of the fibre can be greatly increased, and the fibre can be used in various industries with high antistatic and radiation-proof demands. The thermoplastic high polymer of the core layer of the compound fibre has good spinnability; and the metal or metal alloy of the sheath layer can maintain good antistatic property, conductivityand radiation-proof property for a long time.

Description

Technical field [0001] The invention relates to a conductive skin-core composite fiber and a manufacturing method thereof. Specifically, it relates to a conductive skin-core composite fiber in which the component of the skin layer is metal or metal alloy, and the component of the core layer is thermoplastic polymer Fiber, and its preparation method. Background technique [0002] With the development of science and technology, various industries have higher and higher requirements for the conductivity, antistatic properties, and electromagnetic shielding properties of fabrics or clothing, and there have been various proposals for the manufacturing methods of conductive fibers. There are many types of conductive fibers, including metal conductive fibers, carbon black conductive fibers, conductive polymer fibers, and metal compound conductive fibers. The conductivity of the conductive fibers prepared by these methods basically meets the needs of production and life, but there are i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/34D01D5/08D01F8/04D01F8/18
Inventor 崔华帅吴鹏飞李杰崔宁史贤宁黄庆
Owner CHINESE TEXTILE ACAD
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