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Graphene and salix psammophila regenerated cellulose blended fiber and preparation method thereof

A technology for regenerating cellulose and graphene, applied in the field of natural polymers and textiles, can solve problems such as insoluble in water and organic solvents, and achieve the effect of improving utilization rate, huge economic benefits and ecological benefits

Inactive Publication Date: 2015-01-07
钱景
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, graphene is difficult to dissolve in water and organic solvents due to the strong intermolecular force.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of salix wood powder: Peel and crush salix, pass through a 100-mesh sieve, dry at 80°C, cool, and put in a desiccator for later use;

[0024] (2) Preparation of salix fiber: add salix wood powder in step (1) to the autoclave, add anhydrous ethanol-nitric acid mixture, wherein the addition of nitric acid is 3%wt, and the solid-to-liquid ratio is 1:10 , heated to 120°C, stirred for 3 hours, cooled, filtered, washed with absolute ethanol for 5 times, rinsed repeatedly with deionized water, and dried;

[0025] (3) Preparation of salix pulp: use 10%wt NaOH to cook, the bath ratio is 1:10, the cooking temperature is 200°C, the time is 3h, and then 20%wt hydrogen peroxide is used for bleaching, the bleaching temperature is 100°C, and the bleaching time is 2h;

[0026] (4) Preparation of graphene oxide blended salix spinning solution: according to the volume ratio of 1:10, 0.5%wt graphene oxide solution was ultrasonically oscillated for 24h, and slowly added dr...

Embodiment 2

[0031] (1) Preparation of salix wood powder: Peel and crush salix, pass through a 80-mesh sieve, dry at 90°C, cool, and put in a desiccator for later use;

[0032](2) Preparation of salix fiber: add the salix wood powder in step (1) to the autoclave, add anhydrous ethanol-sulfuric acid mixture, the sulfuric acid addition is 4%wt, and the solid-to-liquid ratio is 1:5 , after heating to 120°C, stirring for 2 hours, cooling, filtering, washing with absolute ethanol for 3 times, then repeatedly rinsing with deionized water, and drying;

[0033] (3) Preparation of salix pulp: use 5%wt NaOH to cook, the liquor ratio is 1:5, the cooking temperature is 250°C, the time is 4h, and then bleached with 25%wt hydrogen peroxide, the bleaching temperature is 80°C, and the bleaching time is 1h;

[0034] (4) Preparation of graphene oxide blended salix spinning solution: according to the volume ratio of 1:50, 0.1%wt graphene oxide solution was ultrasonically oscillated for 12h, and slowly added...

Embodiment 3

[0038] (1) Preparation of salix wood powder: Peel and crush salix, pass through a 60-mesh sieve, dry at 80°C, cool, and put in a desiccator for later use;

[0039] (2) Preparation of salix fiber: add salix wood powder in step (1) to the autoclave, add absolute ethanol-hydrochloric acid mixture, the solid-to-liquid ratio is 1:15, heat to 140°C, and stir for 3 hours , cooled, filtered, washed twice with absolute ethanol, rinsed repeatedly with deionized water, and dried;

[0040] (3) Preparation of salix pulp: use 15%wt NaOH to cook, the bath ratio is 1:10, the cooking temperature is 220°C, the time is 3h, and then 20%wt hydrogen peroxide is used for bleaching, the bleaching temperature is 80°C, and the bleaching time is 2h;

[0041] (4) Preparation of graphene oxide blended salix spinning solution: according to the volume ratio of 1:100, 0.08%wt graphene oxide solution was ultrasonically oscillated for 10h, and slowly added dropwise to 20%wt salix cellulose solution Stir at 8...

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Abstract

The invention discloses a graphene and salix psammophila regenerated cellulose blended fiber and a preparation method thereof. The preparation method comprises steps as follows: peeling, crushing, sieving, drying and cooling salix psammophila to prepare salix psammophila wood meal; extracting salix psammophila cellulose with an ethanol-acid mixed liquid; performing technological treatment such as cooking, bleaching and the like on the salix psammophila cellulose to obtain salix psammophila pulp; performing filtration and reduced pressure defoaming on graphene oxide and the salix psammophila cellulose to obtain an evenly mixed spinning solution; performing coagulating bath spinning, drawing forming, reining and drying on the spinning solution; finally, performing reduction to obtain the graphene and salix psammophila regenerated cellulose blended fiber. According to the method, the graphene oxide and the salix psammophila regenerated cellulose are taken as raw materials, and the functional regenerated cellulose fiber with the anti-static property, the antibacterial property, the high strength and the good wearability is prepared with efficient blending, wet spinning and after-treatment reduction technologies.

Description

technical field [0001] The invention relates to a graphene-blended salix regenerated cellulose fiber and a preparation method thereof, belonging to the fields of natural polymers and textiles. Background technique [0002] For a long time, cellulose has been the main industrial raw material for textile and papermaking. It has been paid more and more attention by people because of its renewability, biodegradability and cost advantages. , Functional chemicals and additives have shown good development prospects. Due to the reduction of arable land and the depletion of fossil resources such as oil and natural gas, the production of natural fibers and synthetic fibers will be more and more restricted. As a green, environmentally friendly and renewable resource, regenerated cellulose has gained an unprecedented opportunity for development. [0003] Salix salix is ​​one of the few desert plants that can grow in saline-alkali soil. Its twigs are yellow, leaf-shaped or linear-lanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01F1/10
Inventor 钱景赵兵
Owner 钱景
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