Preparation method of composite conductive fiber

A composite conductive and fiber technology, used in the manufacture of conductive/antistatic filaments, complete sets of equipment for the production of artificial threads, melt spinning, etc. Mechanical and electrical properties, easy-to-operate effects

Inactive Publication Date: 2017-09-22
朱燕萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obtained composite conductive fiber has good mechanical properties and electrical conductivity,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] 1) The activated graphene, carboxylated carbon nanotubes (single-walled carbon nanotubes, diameter of 10nm), silver nanowires (diameter of 45nm) and silver quantum dots are mixed in a mass ratio of 1:10:25:3 to obtain Conductive filler; mix polypropylene chips and polyethylene chips at a mass ratio of 60:1 to obtain a polymer precursor;

[0041] The conductive filler and polymer precursor are mixed, then added to a high-speed mixer at 2500 rpm and mixed for 8 minutes. The mixture is added to the twin-screw extruder at a uniform speed for mixing and extrusion. The extrudate is quenched in a 48°C water bath and drawn Cut into the pelletizer;

[0042] 2) Spread the composite pellets prepared in step 1 on a stainless steel tray, place them in an oven at 85°C for 10 hours, and spin the pellets in a vertical melt spinning machine to obtain spun silk;

[0043] 3) The nascent silk is dried, oiled, drafted by a draft roller, and wound and winded to obtain a composite...

Example Embodiment

[0045] Example 2

[0046] 1) Mix activated graphene, carboxylated carbon nanotubes (single-walled carbon nanotubes with a diameter of 15nm), silver nanowires (30nm in diameter) and silver quantum dots in a mass ratio of 1:10:20:5 to obtain Conductive filler; mix polypropylene chips and polyethylene chips at 100:1 to obtain a polymer precursor;

[0047] The conductive filler and polymer precursor are mixed, then added to a high-speed mixer at 800 rpm and mixed for 25 minutes. The mixture is added to the twin-screw extruder at a uniform speed for mixing and extrusion. The extrudate is quenched in a water bath at 50°C and drawn Cut into the pelletizer;

[0048] 2) Spread the composite pellets prepared in step 1 on a stainless steel tray, place them in an oven at 85°C for 10 hours, and spin the pellets in a vertical melt spinning machine to obtain spun silk;

[0049] 3) The nascent silk is dried, oiled, drafted by a draft roller, and wound and winded to obtain a composite fiber. The par...

Example Embodiment

[0051] Example 3

[0052] 1) Mix activated graphene, carboxylated carbon nanotubes (single-walled carbon nanotubes with a diameter of 8nm), silver nanowires (70nm in diameter) and silver quantum dots in a mass ratio of 1:10:40:2 to obtain Conductive filler; mix polypropylene chips and polyethylene chips in a ratio of 1:1 to obtain a polymer precursor;

[0053] The conductive filler and polymer precursor are mixed, then added to a high-speed mixer at 800 rpm and mixed for 30 minutes. The mixture is added to the twin-screw extruder at a uniform speed for mixing and extrusion. The extrudate is quenched in a water bath at 40°C and pulled Cut into the pelletizer;

[0054] 2) Spread the composite pellets prepared in step 1 flat on a stainless steel tray and place them in an oven at 85°C for drying for 10 hours, and spin the pellets in a vertical melt spinning machine to obtain spun silk;

[0055] 3) The nascent silk is dried, oiled, drafted by a draft roller, and wound and winded to obtain...

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Abstract

The invention belongs to the technical field of preparing functional fiber, and particularly relates to a preparation method of composite conductive fiber. According to the preparation method, activated graphene, a carboxylated carbon nanotube, a silver nanowire and silver quantum dots are used as conductive fillers; and the slices of polypropylene and polyethylene are used as base materials which are subjected to blending granulation and melt spinning to prepare the composite conductive fiber. The composite conductive fiber provided by the invention not only has very good mechanical properties, but also has excellent electrical conductivity; the tensile strength of single fiber is 8.0-10.0cN/dtex; and the conductivity of the fiber is 1,100-1,500S/m. The preparation method is simple in process, green and environmentally friendly, and is suitable for industrial production, and has a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional fibers, relates to the technical field of surface modification of new carbon materials such as graphene and carbon nanotubes and blending processing with high polymers, and specifically relates to the preparation of polypropylene by doping activated graphene / carbon nanotubes / Method of high-density polyethylene composite conductive fiber. Background technique [0002] Graphene was discovered by Konstantin Novoselov and Andre Geim of the University of Manchester in the laboratory in 2004 (Novoselov, K.S.&Geim, A.K.etal.Electricfieldeffectivelythinatomicallythincarbonfilms.Science, 306,666-669,2004), its excellent mechanical, electrical and thermal properties have attracted the attention of material scientists. Graphene is a planar two-dimensional film material composed of carbon atoms with sp2 hybrid orbitals forming a hexagonal honeycomb lattice and only one carbon atom thick. ...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F6/46D01F1/09D01D13/00D01D5/08
CPCD01F8/06D01D5/08D01D13/00D01F1/09D01F6/46
Inventor 朱燕萍
Owner 朱燕萍
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