A kind of multifunctional viscose fiber and preparation method thereof

A viscose fiber, multi-functional technology, applied in the field of multi-functional viscose fiber and its preparation, can solve the problems of inconspicuous radiation protection, inability to solve the agglomeration phenomenon well, affecting the effect of nano silver particles, etc. Infrared effect

Active Publication Date: 2017-04-19
JINAN SHENGQUAN GROUP SHARE HLDG
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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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  • A kind of multifunctional viscose fiber and preparation method thereof
  • A kind of multifunctional viscose fiber and preparation method thereof
  • A kind of multifunctional viscose fiber and preparation method thereof

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preparation example Construction

[0050] The preparation method of the porous cellulose comprises the following steps: A), hydrolyzing biomass resources in acid to obtain lignocellulose, and the biomass resources include one or more of plants and agricultural and forestry wastes; B) ), treating the lignocellulose to obtain porous cellulose, the treatment comprising acid treatment, salt treatment or organic solvent treatment. In the present invention, the hydrolysis temperature 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, most preferably sulfuric acid, nitric acid or hydrochloric acid. In the present inventi...

Embodiment 1

[0106] At 120° C., hydrolyzing corncobs in sulfuric acid for 30 minutes to obtain lignocellulose, the mass of the sulfuric acid being 3% of the mass of the corncobs;

[0107] At 70°C, the lignocellulose was subjected to an acidic sulfite treatment for 1 hour to obtain porous cellulose, the pH value during the acidic sulfite treatment was 1, the acid was sulfuric acid, and the sulfite was Magnesium sulfite, the quality of the sulfuric acid is 4% of the lignocellulose quality, 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 bleach is 100° C., and the bleaching time is 5 hours.

[0109] Stirring the bleached porous cellulose and nickel chloride at 20°C for 2 hours for activation treatment, the mass ratio of nickel chloride and porous cellulose is 0.1:1; Drying under low temperature, obtain the product...

Embodiment 2

[0114] The graphene prepared by 1g embodiment 1 is ultrasonically dispersed in 100g water for 100min, centrifuged at a speed of 2000rpm for 5min, and after taking the supernatant, add SDS to obtain a graphene colloidal solution; the graphene colloidal solution is ultrasonically dispersed in water for 100min again to obtain graphite vinyl colloid solution;

[0115] Ultrasonic disperse the above-mentioned graphene colloidal solution in water for 100 minutes again to obtain a graphene dispersion; add 0.02mol / L silver nitrate to the graphene dispersion under stirring conditions, and slowly add 0.2mol / L silver nitrate after stirring and dissolving in the dark. Sodium borohydride solution, reacted 100min at room temperature; Wherein, the mass ratio of silver nitrate and graphene is 1:10, and the mol ratio of sodium borohydride and silver nitrate is 10:1;

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

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Abstract

The invention provides a multifunctional viscose fiber, comprising: viscose fiber, graphene and nano-silver, wherein the nano-silver is loaded on the graphene sheet in situ. The present invention also provides a preparation method of multifunctional viscose fiber, which is characterized in that, comprising: a) dispersing graphene in an aqueous solution to obtain a graphene dispersion; b) dissolving silver salt in the graphene dispersion In the solution, after adding a reducing agent to carry out the reduction reaction, the graphene dispersion solution loaded with nano-silver is obtained; c) the graphene dispersion solution loaded with nano-silver is mixed evenly with the viscose liquid, and the multifunctional viscose is obtained after spinning fiber. The experimental results show that compared with the viscose fiber without adding nano-silver graphene, the far-infrared temperature rise performance of the multifunctional viscose fiber prepared by the present invention is improved by more than 100%, the ultraviolet protection coefficient is improved by more than 70%, and the antibacterial performance At 99.9%, an improvement of over 100%.

Description

technical field [0001] The invention belongs to the technical field of viscose fiber, and in particular 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 from cellulose derived from cotton linters, wood, and plant straw through a series of processes such as acid hydrolysis, alkali hydrolysis, and bleaching. It is prepared through a series of steps of alkali impregnation, pressing, aging, yellowing, dissolving, filtering, spinning and post-processing. Ordinary viscose fiber is similar to cotton fiber, comfortable to wear, has good hygroscopicity and dyeability, and has advantages that other chemical fibers cannot match. As consumers have higher and higher functional requirements for clothing and other materials, such as far-infrared, anti-ultraviolet, anti-radiation, anti-static, antibacterial, antibacterial, etc., multifunctional viscose fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08C01B32/184
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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