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A kind of functional graphene cellulose fiber prepared by melting method and preparation method thereof

A technology of cellulose fiber and graphene, which is applied in the textile field, can solve the problems of large differences in fiber properties and uses, and achieve excellent thermal properties, reduce environmental hazards, and improve melting effects

Active Publication Date: 2018-05-15
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 method for preparing functional graphene cellulose fiber includes the following steps:

[0048] (1) Preparation of graphene dispersion

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

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

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

[0052] (3) Mixed

[0053] The graphene dispersion prepared in step (1) and the cellulose / ionic liquid mixture prepared in step (2) are thoroughly mixed in a mass ratio of 1:10.

[0054] (4) Pre-melting

[0055] The mixture is fed i...

Embodiment 2

[0062] A method for preparing functional graphene cellulose fiber includes the following steps:

[0063] (1) Preparation of graphene dispersion

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

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

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

[0067] (3) Mixed

[0068] The graphene dispersion prepared in the above step (1) and the cellulose / ionic liquid mixture prepared in the step (2) are thoroughly mixed in a mass ratio of 1:35.

[0069] (4) Pre-melting

[0070] The mixture is fed into the twi...

Embodiment 3

[0077] A method for preparing functional graphene cellulose fiber includes the following steps:

[0078] (1) Preparation of graphene dispersion

[0079] Add graphene and sodium carboxymethyl cellulose (CMC) dispersant to deionized water, use high-speed stirring, ball mill dispersion or ultrasonic dispersion to form a 22% mass percentage graphene dispersion. Add dispersant The amount is 12% of the graphene added.

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

[0081] 19% of the straw pulp with a degree of polymerization of 769, 81% of the cation is hydroxypropyl and the anion is PF 4 - The alkyl imidazole type ionic liquid is premixed with a high-speed pulverizer to fully swell the cellulose, and the content is mass percentage.

[0082] (3) Mixed

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

[0084] (4) Pre-melting

[0085] The mixture is fed into th...

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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 kind of cellulose pulp and graphene as raw materials, an ionic liquid as a plasticizer, and a high-temperature melting plasticizing technology. The method and the fiber of the synthetic graphene cellulose fiber belong to the field of textile technology. Background technique [0002] Graphene is a new type of carbon nano-lightweight material with a unique single-atom layer two-dimensional crystal structure. Due to its super high strength, electrical conductivity, thermal conductivity and light transmittance, it has been widely used. Become a research hotspot in the field of composite materials. [0003] The Chinese patent with application number 201210005146.6 discloses a method for preparing graphene / polyimide composite fibers; the Chinese patent with application number 201210319397.1 discloses a method for preparing graphene-polyvinyl chloride...

Claims

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Application Information

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Patent Type & Authority Patents(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