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Composite conductive monofilament and preparation method and application thereof

A composite conductive and monofilament technology, which is applied in the manufacture of conductive/antistatic filaments, rayon, and single-component polyamide rayon. It can solve problems such as rough surface of tow and difficult control of coating thickness. , to achieve the effect of wide application range and enhanced strength

Inactive Publication Date: 2019-11-05
新奥(内蒙古)石墨烯材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is only suitable for monofilaments, and has disadvantages such as difficult control of coating thickness and rough surface of tows.

Method used

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  • Composite conductive monofilament and preparation method and application thereof

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preparation example Construction

[0048] According to the method for preparing conductive monofilament according to the embodiment of the present invention, the wire drawing masterbatch is prepared by mixing the matrix with graphene, carbon nanotubes, and carbon black, and graphene, carbon nanotubes, and carbon black can be compounded to form three conductive fillers. -Line-surface three-dimensional conductive network, by using the three together with the matrix, the permanent antistatic performance of the composite conductive monofilament can be ensured; The three-dimensional conductive network of the material can be maintained during the subsequent pulling process, avoiding the non-conductive defect of the composite conductive monofilament during the stretching process; by thermally stretching the pre-crystallized silk material, the composite conductive monofilament can be strengthened The strength and make the composite conductive monofilament thinner. The conductivity of the obtained composite conductive m...

Embodiment 1

[0053] The matrix nylon 6 and graphene, carbon nanotubes, carbon black, dispersant EVA-3, antioxidant SKY-1035, and toughening agent SRK-200A are in a mass ratio of 100:3:1:0.5:3:0.2:0.05 Mix to obtain a wire drawing masterbatch with a surface resistance of 25Ω; extrude the wire drawing masterbatch, filter it with a 500-mesh filter and wire drawing treatment to obtain a silk material; pre-crystallize the wire material by heating a metal plate at 230°C ; The pre-crystallized silk material is subjected to thermal stretching treatment at a crimping speed of 200rpm according to a draw ratio of 1.5:1, so as to obtain a composite conductive monofilament with a diameter of 0.105mm.

[0054] The composite conductive monofilament was tested, and its surface resistance was 900Ω, its strength was 57MPa, and its elongation was 120%. After further testing, the ultraviolet protection performance T(UVA) of the composite conductive monofilament AV (%) is 0.2%, T(UVB) AV (%) is 0.5%, the UPF...

Embodiment 2

[0056] The matrix nylon 6 and graphene, carbon nanotubes, carbon black, dispersant EVA-3, antioxidant SKY-1035, and toughening agent SRK-200A are in a mass ratio of 100:4:2:1.5:4:0.5:0.05 Mix to obtain a wire drawing masterbatch with a surface resistance of 77Ω; extrude the wire drawing masterbatch, filter and draw through a filter with a mesh number of 350 meshes, and obtain a silk material; pre-crystallize the wire material by heating a metal plate at 230°C ; The pre-crystallized silk material is subjected to thermal stretching treatment at a crimping speed of 200rpm according to a draw ratio of 1.5:1, so as to obtain a composite conductive monofilament with a diameter of 0.2mm.

[0057]The composite conductive monofilament was tested, and its surface resistance was 280Ω, its strength was 45MPa, and its elongation was 138%. After further testing, the ultraviolet protection performance T(UVA) of the composite conductive monofilament AV (%) is 0.03%, T(UVB) AV (%) is 0.05%, ...

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Abstract

The invention discloses a composite conductive monofilament and a preparation method and application thereof. The composite conductive monofilament comprises a matrix, graphene, a carbon nano tube andcarbon black. The composite conductive monofilament has a point-line-plane three-dimensional conductive network and has a permanent antistatic property, the surface resistance is 10-1000 omega, the strength is greater than or equal to 40 Mpa, the elongation is greater than or equal to 115%, the ultraviolet protection performance T(UVA)AV(%) is less than or equal to 5%, T(UVB)AV(%) is less than orequal to 5%, UPF Rating is greater than or equal to 50, the far-infrared emissivity is greater than or equal to 0.88, the half-life period is less than or equal to 2.0 seconds, and the bacteriostasisrate is greater than or equal to 97%.

Description

technical field [0001] The invention belongs to the field of polymer conductive fibers, in particular, the invention relates to a composite conductive monofilament and a preparation method and application thereof. Background technique [0002] There are generally five types of conductive fibers that appear on the market, namely, metal-based, carbon-based, conductive polymer-based, nano-metal oxide-based, and antistatic agent-based. Among them, metal-based conductive fibers have good electrical conductivity, but have poor hand feeling, poor toughness and cannot be bent, and poor blending performance. Carbon-based conductive fibers can be bent and have permanent antistatic properties, but the resistance value is difficult to drop to the level of conductors; conductive polymer-based conductive fibers are prepared by direct spinning of conductive polymers, and have the advantage of good hand feeling, but this kind of Fiber stability is poor, environmental dependence is strong, ...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/09D01F1/10
CPCD01F1/09D01F1/103D01F1/106D01F6/90
Inventor 张敏王浩然郭晓然樊振兴徐欢李金来
Owner 新奥(内蒙古)石墨烯材料有限公司
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