Graphene composite fiber yarn and its preparation method and application

A graphene composite, graphene technology, applied in the textile field, can solve the problems of graphene structure and performance adverse effects, easy agglomeration, limited application, etc., to achieve good spinnability and continuity, complete crystal structure, and spinnability. excellent effect

CN109402815BActive Publication Date: 2019-08-30福建祥业生物工程技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-08-30

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Abstract

The invention provides a graphene composite fiber yarn and a preparation method and application thereof. The method comprises the steps of dispersing graphene in deionized water to obtain a graphene dispersion; mixing a viscose with the graphene dispersion to obtain a spinning glue; conducting wet spinning on the spinning glue to obtain a graphene composite fiber; conducting spinning on the graphene composite fiber to obtain a graphene composite fiber yarn. The preparation method can prepare the graphene dispersion with high concentration and stable dispersion, the crystal structure of the graphene is complete, the spinnability is good when spinning with the glue, the spinning quality is high, and convenience is provided for the graphene composite fiber yarn to be widely used in the textile field.
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Description

technical field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a graphene composite fiber yarn and a preparation method and application thereof. Background technique

[0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms in a hexagonal honeycomb lattice with sp2 hybrid orbitals. It has excellent optical, electrical, and mechanical properties. It is used in materials science, micro-nano processing, energy, biomedicine and Drug delivery and other aspects have important application prospects. In recent years, graphene has been widely used in the field of textiles, and has gradually become a research hotspot in the field of textile fibers. Graphene textiles have great application prospects in electrical conductivity, radiation protection, UV protection, far infrared, antibacterial, thermal conductivity, etc. .

[0003] Viscose fiber (referred to as viscose) is made of natural fiber (wood fiber, cotton ...

Examples

Embodiment 1

[0049] 1. Preparation of graphene dispersion

[0050] Put non-oxidized graphene (number of layers is 1-9 layers, average particle size ≤ 2 μm, hereinafter referred to as graphene) in deionized water, and then add carboxymethyl cellulose sodium for ultrasonic dispersion, wherein: graphene and carboxy The mass ratio of methylcellulose sodium is 15:1; the ultrasonic dispersion is carried out twice, the frequency of the first ultrasonic dispersion is 80kHZ, and the dispersion time is 1h. The frequency of the second ultrasonic dispersion is 50kHZ, and the dispersion time is 2h to obtain the first dispersion liquid.

[0051] Add hexamethylenetetramine to the above-mentioned first dispersion liquid, stir and reflux reaction; wherein, the mass ratio of graphene and hexamethylenetetramine is 6:1, the temperature of stirring and reflux reaction is 100°C, and the time is 2h, the second dispersion liquid was prepared.

[0052] The above-mentioned second dispersion is centrifuged, wherei...

Embodiment 2

[0066] 1. Preparation of graphene dispersion

[0067] Put non-oxidized graphene (the number of layers is 1-9 layers, the particle size is 100nm-2μm) in deionized water, and then add sodium carboxymethyl cellulose for ultrasonic dispersion, wherein: graphene and sodium carboxymethyl cellulose The mass ratio is 20:1; the ultrasonic dispersion is carried out twice, the frequency of the first ultrasonic dispersion is 100kHZ, and the dispersion time is 0.5h. The frequency of the second ultrasonic dispersion is 60kHZ, and the dispersion time is 1.5h to obtain the first dispersion liquid.

[0068] Add hexamethylenetetramine to the above-mentioned first dispersion liquid, stir and reflux reaction; wherein, the mass ratio of graphene and hexamethylenetetramine is 4:1, the temperature of stirring and reflux reaction is 120°C, and the time is After 1 h, the second dispersion liquid was prepared.

[0069] Centrifuge the above-mentioned second dispersion, wherein the centrifugation speed...

Embodiment 3

[0079] 1. Preparation of graphene dispersion

[0080] Put non-oxidized graphene (the number of layers is 1-9 layers, and the average particle size is less than or equal to 2 μm) in deionized water, and then add sodium dodecyl sulfate for ultrasonic dispersion, wherein: the mixture of graphene and sodium dodecyl sulfate The mass ratio is 10:1; the ultrasonic dispersion is carried out twice, the frequency of the first ultrasonic dispersion is 80kHZ, and the dispersion time is 1h. The frequency of the secondary ultrasonic dispersion is 40kHZ, and the dispersion time is 3h to obtain the first dispersion liquid.

[0081] Add hexamethylenetetramine to the above first dispersion liquid, stir and reflux reaction; wherein, the mass ratio of graphene and hexamethylenetetramine is 8:1, the temperature of stirring and reflux reaction is 80°C, and the time is 3h, the second dispersion liquid was prepared.

[0082] The above-mentioned second dispersion liquid is centrifuged, wherein the c...