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Multifunctional viscose and preparation method thereof

A viscose fiber and multi-functional technology, applied in the field of multi-functional viscose fiber and its preparation, can solve the problems of not outstanding radiation protection, affecting the effect of nano-silver particles, and not being able to solve the agglomeration phenomenon well, and achieve a good long-term Infrared effect

Active Publication Date: 2015-08-12
JINAN SHENGQUAN GROUP SHARE HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the prior art discloses a variety of multifunctional viscose fibers. For example, the Chinese patent document with the application number 200510104907.3 discloses a silver-containing antibacterial viscose fiber and a preparation method thereof, including meal mixing, glue making, spinning, and bundling. , cutting, refining, drying and packaging steps, and in the process of making glue or spinning, adding a nano-silver colloid solution with a nanoparticle size of 50-65nm, the viscose fiber obtained by this method has strong antibacterial and bactericidal properties And certain anti-static functions, but the preparation method of nano-silver particles can not solve the agglomeration phenomenon in the process of glue making and spinning, which affects the effect of nano-silver particles
And, this method directly adds nano-silver colloid solution, although the obtained viscose fiber has bacteriostasis property, other properties, such as far-infrared, anti-radiation etc. are not outstanding.

Method used

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  • Multifunctional viscose and preparation method thereof
  • Multifunctional viscose and preparation method thereof
  • Multifunctional viscose and preparation method thereof

Examples

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preparation example Construction

[0050] The preparation method of the porous cellulose includes the following steps: A), hydrolyzing biomass resources in acid to obtain lignocellulose, the biomass resources include one or more of plants and agricultural and forestry wastes; B ), processing the lignocellulose to obtain porous cellulose, and the processing includes acid treatment, salt treatment or organic solvent treatment. In the present invention, the temperature of the hydrolysis is preferably 90°C to 180°C, more preferably 120°C to 150°C. In the present invention, the hydrolysis time is preferably 2h-10h, more preferably 2h-8h, most preferably 3h-6h. In the present invention, the hydrolyzed acid is preferably one or more of sulfuric acid, nitric acid, hydrochloric acid, formic acid, sulfurous acid, phosphoric acid, and acetic acid, more preferably sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid or acetic acid, and most preferably Sulfuric acid, nitric acid or hydrochloric acid. In the prese...

Embodiment 1

[0106] Hydrolyzing the corn cob in sulfuric acid for 30 min at 120° C. to obtain lignocellulose, the mass of the sulfuric acid being 3% of the mass of the corn cob;

[0107] At 70° C., the lignocellulose was treated with the acid sulfite method for 1 hour to obtain porous cellulose. The pH value during the acid sulfite method was 1, the acid was sulfuric acid, and the sulfite was Magnesium sulfite, the mass of the sulfuric acid is 4% of the mass of the lignocellulose, and the liquid-solid ratio is 2:1;

[0108] The porous cellulose is bleached with hydrogen peroxide, the mass of the hydrogen peroxide is 5% of the mass of the porous cellulose, the bleaching temperature of the hydrogen peroxide bleaching is 100° C., and the bleaching time is 5 h.

[0109] The bleached porous cellulose and nickel chloride were stirred for 2 hours at 20°C for activation treatment, and the mass ratio of the nickel chloride and porous cellulose was 0.1:1; the obtained activation treatment product was heate...

Embodiment 2

[0114] Disperse 1g of the graphene prepared in Example 1 ultrasonically in 100g of water for 100min, centrifuge at 2000rpm for 5min, take the supernatant and add SDS to obtain a graphene colloid solution; Disperse the graphene colloid solution in water again ultrasonically for 100min to obtain graphite Ene colloid solution;

[0115] Disperse the above-mentioned graphene colloid solution in water again ultrasonically for 100 minutes to obtain a graphene dispersion; add 0.02mol / L silver nitrate to the graphene dispersion under stirring, and slowly add 0.2mol / L after stirring to dissolve in the dark Sodium borohydride solution, react for 100 minutes at room temperature; wherein the mass ratio of silver nitrate to graphene is 1:10, and the molar ratio of sodium borohydride to silver nitrate is 10:1;

[0116] The reactant obtained after the reaction was ultrasonically treated for 30 minutes to obtain a graphene solution loaded with nano-silver.

[0117] The sulfonated corncob cellulose w...

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Abstract

The invention provides multifunctional viscose. The multifunctional viscose comprises viscose, graphene and nano-silver, wherein nano-silver is loaded to a graphene slice layer in situ. The invention further provides a preparation method of the multifunctional viscose. The preparation method is characterized by comprising the following steps: (a) dispersing graphene in a water solution, so as to obtain a graphene dispersion liquid; (b) dissolving silver salt into the graphene dispersion liquid, adding a reducing agent, and carrying out reduction reaction, so as to obtain nano-silver-loaded graphene dispersion liquid; and (c) uniformly mixing the nano-silver-loaded graphene dispersion liquid with viscose liquid, and carrying out spinning, so as to obtain the multifunctional viscose. An experimental result shows that compared with viscose which is not added with nano-silver-loaded graphene, the multifunctional viscose has the advantages that the far infrared temperature increase performance is increased by not less than 100%, the ultraviolet protecting coefficient is increased by not less than 70%, and the antibacterial activity reaches 99.9% and is increased by not less than 100%.

Description

Technical field [0001] The invention belongs to the technical field of viscose fibers, and particularly relates to a multifunctional viscose fiber and a preparation method thereof. Background technique [0002] Viscose fiber is mainly made of high-purity cellulose dissolving pulp prepared by a series of processes such as acid hydrolysis, alkaline hydrolysis and bleaching from cellulose derived from cotton linters, wood and plant straws. A series of alkaline dipping, pressing, aging, yellowing, dissolving, filtering, spinning, post-processing and other processes are prepared. Ordinary viscose fiber has similar properties to cotton fiber, is comfortable to wear, has good moisture absorption and dyeability, and has advantages that other chemical fibers can't match. As consumers have increasingly higher functional requirements for clothing and other materials, such as far-infrared, anti-ultraviolet, anti-radiation, anti-static, antibacterial, antibacterial, etc., multifunctional vis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08C01B31/04
CPCD01F2/08D01F2/10C01B32/182C01B32/184C01B32/194D01D5/06
Inventor 唐一林张金柱郑应福张淑云刘晓敏金少瑾许日鹏
Owner JINAN SHENGQUAN GROUP SHARE HLDG
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