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Preparation method of compound conductive fibers

A composite conductive and fiber technology, applied in conductive/antistatic filament manufacturing, melt spinning, conjugated synthetic polymer rayon, etc., can solve the problems of difficult modification of the preparation process, poor environmental friendliness, and complex process. , to achieve the effect of controllable process, environmental friendliness and simple process

Active Publication Date: 2016-10-12
HUBEI HUAQIANG HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, most of the conductive fibers are chemically modified polyaniline fibers, conductive fibers added with conductive carbon black through wet spinning, or conductive fibers added with conductive metals such as Cu and Ag, etc. The preparation process of these fibers is difficult to modify and complicated. , poor environmental friendliness, etc. In contrast, melt spinning has the advantages of simple operation, strong process controllability, and environmental friendliness.
There are not many reports on the preparation of conductive fibers by modifying the incompatible two-phase matrix by using two nano-carbon-based conductive materials with different dimensions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1) Add 0.24kg of activated graphene, 0.12kg of carboxylated carbon nanotubes, 10kg of polypropylene slices, and 2kg of high-density polyethylene slices into a high-speed mixer at 600rpm and mix for 30 minutes. Mixed and extruded in a screw extruder, the extruded material is quenched in a water bath at room temperature, and pulled into a pelletizer for slicing;

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

[0043] 3) The as-spun silk is dried, oiled, drawn by drafting rollers, and wound on a bobbin to obtain composite fibers. The parameters of the spinning machine during spinning are set as follows: the speed of the main engine is 25rpm, the temperature of the feeding section, the melting section and the head section are respectively controlled at 220°C, 240°C, and 230°C, and the spee...

Embodiment 2

[0045] 1) After manually mixing 0.48kg activated graphene, 0.24kg carboxylated carbon nanotubes, 10kg polypropylene slices, and 2kg high-density polyethylene slices, add them to a high-speed mixer with a speed of 800rpm and mix them for 25 minutes. Add it to the twin-screw extruder at a uniform speed for mixing and extrusion, and the extruded material is quenched in a water bath at room temperature, and then pulled into a pelletizer for slicing;

[0046] 2) Spread the composite pellets prepared in step 1 flat on a stainless steel tray, place them in an oven at 85°C and dry them for 10 hours, and spin the pellets in a vertical melt spinning machine to obtain as-spun filaments;

[0047] 3) The as-spun silk is dried, oiled, drawn by drafting rollers, and wound on a bobbin to obtain composite fibers. The parameters of the spinning machine during spinning are set as follows: the speed of the main engine is 25rpm, the temperature of the feeding section, the melting section and the h...

Embodiment 3

[0049] 1) Manually mix 0.8kg of activated graphene, 0.4kg of carboxylated carbon nanotubes, 9kg of polypropylene slices, and 3kg of high-density polyethylene slices in a high-speed mixer at 1000rpm for 15 minutes. Add it to the twin-screw extruder at a uniform speed for mixing and extrusion, and the extruded material is quenched in a water bath at room temperature, and then pulled into a pelletizer for slicing;

[0050] 2) Spread the composite pellets prepared in step 1 flat on a stainless steel tray, place them in an oven at 105°C and dry them for 8 hours, and spin the pellets in a vertical melt spinning machine to obtain as-spun filaments;

[0051] 3) The as-spun silk is dried, oiled, drawn by drafting rollers, and wound on a bobbin to obtain composite fibers. The parameters of the spinning machine during spinning are set as follows: the speed of the main engine is 20rpm, the temperature of the feeding section, the melting section and the head section are controlled at 200°C...

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Abstract

The invention belongs to the technical field of preparation of functional fibers and in particular relates to a preparation method of compound conductive fibers. Activated graphene and carboxylated carbon nanotubes are used as conductive fillers, and polypropylene / high-density polyethylene slices are used as a matrix material; the materials are commixed, granulated, fused and spun to prepare the compound conductive fibers. The conductive fillers in the fibers are uniformly dispersed and the high-polymer matrix materials are effectively modified. The prepared compound conductive fibers have good mechanical property and conductive property. The preparation method is simple in process, green and environmentally friendly and is suitable for industrial production; the prepared compound conductive fibers can be three-dimensionally woven into a textile fabric and are hopeful to form a main body material for manufacturing functional clothes including antistatic clothes, anti-electromagnetic-shielding clothes and the like.

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 has been discovered since 2004 by Konstantin Novoselov and Andre Geim of the University of Manchester in the laboratory with the micromechanical exfoliation method (Novoselov, K.S. & Geim, A.K. et al. Electric field effect in atomically thin carbon films. Science, 306, 666-669, 2004), its excellent mechanical, electrical and thermal properties have attracted the attention of material scientists. Graphene is a carbon atom with sp 2 The hybrid orbitals form a hexagonal honeycomb lattice and a planar two-d...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F1/09D01D5/08
CPCD01D5/08D01F1/09D01F8/06
Inventor 王冬民袁祖培唐三水唐俊雄陈洁刘冬妮
Owner HUBEI HUAQIANG HIGH TECH CO LTD
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