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Functional salix psammophila regenerated cellulose fiber and preparation method thereof

A regenerated cellulose and functional technology, which is applied in the fields of natural polymers and textiles, can solve unseen problems, achieve the effects of increasing functionality, improving utilization, and preventing agglomeration

Inactive Publication Date: 2015-01-07
青岛豪门实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no literature that uses the extracted salix cellulose for spinning to prepare salix regenerated cellulose fiber, nor does it add nanocomposite powder to the spinning solution to prepare functional salix regenerated cellulose fiber

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 nanocomposite powder-Sawillow spinning solution: according to the volume ratio of 1:10, slowly add 1%wt nanocomposite powder to 10%wt Salix cellulose solution, and add titanium...

Embodiment 2

[0030] (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;

[0031] (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;

[0032] (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;

[0033] (4) Preparation of nanocomposite powder-Swillow spinning solution: according to the volume ratio of 1:50, slowly drop 0.5%wt nanocomposite powder into 15%wt salix cellulose solution, and add ...

Embodiment 3

[0036] (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;

[0037] (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;

[0038] (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;

[0039] (4) Preparation of nanocomposite powder-Swillow spinning solution: according to the volume ratio of 1:100, slowly add 0.1%wt nanocomposite powder to 20%wt salix cellulose solution, and add silane Coupling agent, stirred at 80°C for 7 hours, wherei...

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PUM

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Abstract

The invention discloses functional salix psammophila regenerated cellulose fiber and a preparation method thereof. Salix psammophila is peeled, ground, sieved, dried and cooled to prepare salix psammophila wood meal; salix psammophila cellulose is extracted by an ethanol-acid mixed solution; the salix psammophila cellulose is subjected to technical processes such as cooking, bleaching and the like to prepare salix psammophila pulp; nano titanium dioxide, nano zinc oxide and nano zirconium dioxide in the mass ratio of 1:1:1 and the salix psammophila cellulose are filtered and subjected to pressure reduction deaeration to obtain a uniformly mixed spinning solution; and the spinning solution is subjected to coagulating bath spinning, drafting forming, refining and the drying to obtain the functional salix psammophila regenerated cellulose fiber. Nano composite powder and salix psammophila regenerated cellulose are taken as the raw materials, and the regenerated cellulose fiber with multiple functions such as anti-bacteria, ultraviolet and far infrared resistance and the like is prepared through efficient blending and wet spinning technologies.

Description

technical field [0001] The invention relates to functional 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-lanceolate. ...

Claims

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Application Information

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IPC IPC(8): D01F2/00D01F1/10
Inventor 钱景赵兵
Owner 青岛豪门实业有限公司
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