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Preparation method of graphene-doped conductive composite fiber

A conductive composite fiber and graphene technology, which is applied in the manufacture of conductive/antistatic filaments, fiber chemical characteristics, and complete sets of equipment for the production of artificial threads, can solve the problems of low fiber strength and low conductivity of conductive fibers

Active Publication Date: 2015-01-14
江苏悠谷未来科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention: the conductivity of the conductive fiber based on carbon material is not high, and the fiber strength is low

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the conductive composite fiber doped with graphene, comprises the steps:

[0036] Step 1, mix and stir graphene 10Kg, dispersant 2Kg, high molecular polymer 100Kg; described high molecular polymer is mixed by 1,2-polybutadiene, acrylic resin, chlorinated polypropylene, polypropylene (mixing weight ratios are 1:1:1:2, 1:1:2:2, 1:1:3:2, 1:1:4:2, 1:1:5:2; respectively referred to as groups 1, 2, 3, 4, 5); the dispersant is coconut acid diethanolamide;

[0037] The 2nd step, use the twin-screw extruder to melt the mixture prepared in the first step, filter, spin, cool and form, stretch and heat-set to prepare the conductive composite fiber; the rotating speed of the twin-screw extruder is 100rpm, the pressure is 50kg / cm; in the twin-screw heating area, the temperature in the first zone is 190°C, the temperature in the second zone is 210°C, the temperature in the third zone is 220°C, and the temperature in the fourth zone is 200°C; the spinning spe...

Embodiment 2

[0043] The preparation method of the conductive composite fiber doped with graphene, comprises the steps:

[0044] The 1st step, Graphene 15Kg, dispersant 4 Kg, polymer 150 Kg are mixed and stirred; Described polymer is made of 1,2-polybutadiene, acrylic resin, chlorinated polypropylene, polypropylene Propylene is mixed (the weight ratio of mixing is 1:1:3:2); the dispersant is coconut acid diethanolamide;

[0045] The 2nd step, use the twin-screw extruder to melt the mixture prepared in the first step, filter, spin, cool and form, stretch and heat-set to prepare the conductive composite fiber; the rotating speed of the twin-screw extruder is 150rpm, the pressure is 80kg / cm; in the twin-screw heating area, the temperature in the first zone is 230°C, the temperature in the second zone is 240°C, the temperature in the third zone is 240°C, and the temperature in the fourth zone is 220°C; the spinning speed is 2000m / min; step 2 The medium stretching process is as follows: the tem...

Embodiment 3

[0048] The preparation method of the conductive composite fiber doped with graphene, comprises the steps:

[0049] Step 1, mix and stir graphene 12Kg, dispersant 3Kg, high molecular polymer 120 Kg; Described high molecular polymer is made of 1,2-polybutadiene, acrylic resin, chlorinated polypropylene, polypropylene Mixed (the weight ratio of mixing is 1:1:3:2); the dispersant is coconut acid diethanolamide;

[0050]The 2nd step, use the twin-screw extruder to melt the mixture prepared in the first step, filter, spin, cool and form, stretch and heat-set to prepare the conductive composite fiber; the rotating speed of the twin-screw extruder is 120rpm, the pressure is 70kg / cm; in the twin-screw heating area, the temperature in the first zone is 200°C, the temperature in the second zone is 230°C, the temperature in the third zone is 230°C, and the temperature in the fourth zone is 210°C; the spinning speed is 1400m / min; step 2 The medium stretching process is as follows: the tem...

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Abstract

The invention relates to a preparation method of a graphene-doped conductive composite fiber and belongs to the technical field of composite materials. The preparation method of the graphene-doped conductive composite fiber comprises the following steps: step one, mixing and stirring 10-15 parts of graphene, 2-4 parts of a dispersing agent and 100-150 parts of a high-molecular polymer in parts by weight, wherein the high-molecular polymer is prepared by mixing 1,2-polybutadiene, acrylic resin, chlorinated polypropylene and polypropylene according to any weight ratio; and step two, fusing, filtering, spinning, cooling and molding, drawing and thermally shaping a mixture prepared by the step one by a twin-screw extruder to obtain the conductive composite fiber. The graphene-doped conductive composite fiber prepared by the method is relatively high in conductivity and fiber strength.

Description

[0001] technical field [0002] The invention relates to a method for preparing conductive composite fibers doped with graphene, and belongs to the technical field of composite materials. [0003] Background technique [0004] Conductive fiber is a new fiber variety that appeared in the 1960s. This type of fiber has good electrical conductivity and durability, especially in low humidity and still has good durable antistatic properties. Therefore, it is widely used in industrial and civil fields. Has a great use. [0005] The original conductive fibers were made of stainless steel with a diameter of about 8 μm. Various conductive organic synthetic fibers flourished in the 1970s, and a large number of conductive fibers of various brands and types were developed. At present, the conductive fibers that have been developed mainly include metal fibers, carbon composite fibers and acrylic copper complex fibers, etc. Most of the antistatic fabrics used in China are made of metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F8/10D01F1/09D01F1/10D01D13/00D01D10/02D01D5/12
Inventor 张学平朱忠海
Owner 江苏悠谷未来科技有限公司
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