Salix mongolica regenerated cellulose and preparation method thereof

A technology of regenerated cellulose and Salix salix, applied to artificial filaments made of viscose, etc., to achieve the effects of increased utilization, low price, huge economic benefits and ecological benefits

Active Publication Date: 2014-12-24
山东银鹰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no literature to use the extracted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (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;

[0020] (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;

[0021] (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;

[0022] (4) Preparation of Salix salix spinning solution: Salix salix pulp is used as raw material, and the spinning solution is obtained through the steps of dipping, pressing, crushing, aging, yellowin...

Embodiment 2

[0026] (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;

[0027] (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;

[0028] (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;

[0029] (4) Preparation of Salix salix spinning solution: Salix salix pulp is used as raw material, and the spinning solution is obtained through the steps of dipping, pressing, crushing, aging, yell...

Embodiment 3

[0032] (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;

[0033] (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;

[0034] (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;

[0035] (4) Preparation of Salix salix spinning solution: Salix salix pulp is used as raw material, and the spinning solution is obtained through the steps of dipping, pressing, crushing, aging, yellowing, dissolving, degassing and filtering;

[0036] (5)...

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Abstract

The invention discloses salix mongolica regenerated cellulose and a preparation method thereof. The preparation method comprises the steps of: preparing salix mongolica powder by shelling, crushing, sieving, drying and cooling salix mongolica; extracting salix mongolica cellulose by using ethyl alcohol-acid mixture; stewing and bleaching the salix mongolica cellulose to obtain salix mongolica pulp; dipping, squeezing, crushing, aging, yellowing, dissolving, defoaming and filtering the salix mongolica pulp to obtain spinning solution; spinning the spinning solution and stretching for shaping in a coagulation bath, then refining and drying, and thereby obtaining the salix mongolica regenerated cellulose According to the salix mongolica regenerated cellulose and the preparation method thereof, the salix mongolica is used for producing regenerated cellulose fiber, thus being sufficient in material, low in cost, and meanwhile improved in use ratio of salix mongolica resources, and generating enormous economic and ecological benefits.

Description

technical field [0001] The invention relates to Salix salix regenerated cellulose 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. The branche...

Claims

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Application Information

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IPC IPC(8): D01F2/08
Inventor 钱景赵兵
Owner 山东银鹰化纤有限公司
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