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Fusion-method-prepared functional graphene cellulose fiber and preparation method thereof

A cellulose fiber and graphene technology, applied in the field of textiles, can solve the problems of large differences in fiber properties and uses, and achieve the effects of excellent thermal properties, good far-infrared, and good physical and mechanical properties.

Active Publication Date: 2016-11-23
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the properties and uses of fibers prepared from graphene oxide and graphene are quite different.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A preparation method for functional graphene cellulose fibers, comprising the following steps:

[0048] (1) Preparation of graphene dispersion

[0049] Add graphene and polyvinylpyrrolidone (PVP) dispersant into deionized water, and use high-speed stirring, ball mill dispersion or ultrasonic dispersion to form a graphene dispersion with a concentration of 30% by mass. The amount of dispersant added is graphite 20% of the amount of alkene added.

[0050] (2) Preparation of cellulose / ionic liquid mixture

[0051] 30% of the cotton pulp with a polymerization degree of 562 and 70% of the alkylimidazole type ionic liquid are pre-mixed with a high-speed pulverizer to fully swell the cellulose, and the content is a mass percentage. The ionic liquid cation is allyl , the anion is Cl - .

[0052] (3) mixed

[0053] Fully mix the graphene dispersion prepared in step (1) and the cellulose / ionic liquid mixture prepared in step (2) at a mass ratio of 1:10.

[0054] (4) Pre-mel...

Embodiment 2

[0062] A preparation method for functional graphene cellulose fibers, comprising the following steps:

[0063] (1) Preparation of graphene dispersion

[0064] Add graphene and sodium alginate (SA) dispersant into deionized water, and use high-speed stirring, ball mill dispersion or ultrasonic dispersion to form a graphene dispersion with a concentration of 25% by mass. The amount of dispersant added is graphite 16% of the amount of alkene added. ;

[0065] (2) Preparation of cellulose / ionic liquid mixture

[0066] 26% of the wood pulp with a polymerization degree of 637, 74% of the cations are ethyl, and the anions are SCN - The alkylimidazole-type ionic liquid is premixed with a high-speed pulverizer to fully swell the cellulose, and the content is in mass percent.

[0067] (3) mixed

[0068] Fully mix the graphene dispersion prepared in the above step (1) and the cellulose / ionic liquid mixture prepared in step (2) at a mass ratio of 1:35.

[0069] (4) Pre-melting

[0...

Embodiment 3

[0077] A preparation method for functional graphene cellulose fibers, comprising the following steps:

[0078] (1) Preparation of graphene dispersion

[0079] Add graphene and sodium carboxymethylcellulose (CMC) dispersant into deionized water, and use high-speed stirring, ball mill dispersion or ultrasonic dispersion to form a graphene dispersion with a concentration of 22% by mass. The addition of the dispersant The amount is 12% of the graphene addition.

[0080] (2) Preparation of cellulose / ionic liquid mixture

[0081] 19% of the straw pulp with a polymerization degree of 769, 81% of the cations are hydroxypropyl, and the anions are PF 4 - The alkylimidazole-type ionic liquid is premixed with a high-speed pulverizer to fully swell the cellulose, and the content is in mass percent.

[0082] (3) mixed

[0083] The graphene dispersion prepared in the above step (1) and the cellulose / ionic liquid mixture prepared in step (2) were fully mixed at a mass ratio of 1:63.

[...

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Abstract

The invention discloses fusion-method-prepared functional graphene cellulose fiber. The fiber mainly comprises 0.5-10.0% of graphene and 90.0-99.5% of cellulose. A preparation method of the graphene cellulose fiber comprises procedures of graphene dispersion liquid preparation, cellulose / ionic liquid mixture preparation, mixing, pre-fusing, spinning solution preparation and spinning. The far infrared normal emissivity of the prepared functional graphene cellulose fiber reaches 0.83-0.98, the ultraviolet protection coefficient reaches 62.78-560.21, the ultraviolet a transmittance is smaller than 4.92%, and compared with common viscose, the graphene cellulose fiber has the advantage that the thermal decomposition temperature is raised by 10-42 DEG C. By means of the method, the production process is short, less pollution is caused to the environment, the requirement of sustainable development is met, and the method has great significance for achieving a high-temperature melt spinning route of the functional cellulose.

Description

technical field [0001] The invention relates to a functional graphene cellulose fiber and a preparation method thereof, in particular to a functional graphene cellulose fiber prepared by using cellulose pulp and graphene as raw materials, using ionic liquid as a plasticizer, and adopting high-temperature melting and plasticizing technology. The method and fiber of permanent graphene cellulose fiber belong to the field of textile technology. Background technique [0002] Graphene is a new type of carbon nano light material with a unique two-dimensional crystal structure of single atomic layer. Due to its ultra-high strength, electrical conductivity, thermal conductivity and light transmittance, it has been widely used and It has become a research hotspot in the field of composite materials. [0003] The Chinese patent application number 201210005146.6 discloses a preparation method of graphene / polyimide composite fiber; the Chinese patent application number 201210319397.1 di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10D01D5/08D01D1/09
Inventor 马君志李昌垒秦翠梅吴亚红王东刘乐
Owner 潍坊欣龙生物材料有限公司
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