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Preparation method and product of sea squirt cellulose fiber spinning solution

A technology of cellulose fiber and spinning solution, which is applied in the direction of spinning solution preparation, single-component cellulose artificial filament, artificial filament in cellulose solution, etc., which can solve the problems of environmental pollution and resource waste

Inactive Publication Date: 2013-04-10
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most sea squirts are discarded at will, which is not only a waste of resources, but also causes environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Take 5.06g of 1-methyl-3-methylimidazolium chloride (BMIMCl) as a solid, and heat at 80°C until the solid is completely dissolved;

[0022] 2) Add 0.21 g of ascidian cellulose fiber powder under vigorous stirring;

[0023] 3) heating and stirring for 30 minutes to obtain a transparent liquid, degassing under reduced pressure;

[0024] 4) Add DMSO to the cellulose / BMIMCl system at a ratio of 0.01-0.0125 g dimethyl sulfoxide (DMSO) / g cellulose to prepare a spinning solution.

Embodiment 2

[0026] 1) At room temperature, soak 6.0 g of sea squirt cellulose baked to a water content of less than 2.0% in 100 ml of DMAC for 24 hours, wash it repeatedly with deionized water and ethanol, and dry it in vacuum at 65°C for 24 hours;

[0027] 2) Add 4 g of cellulose treated with DMAC into 100 ml of 10% w / w LiCl / DMAc, dissolve at 90°C for 2 hours, and let stand to room temperature;

[0028] 3) The obtained solution is centrifuged in a centrifuge at 3500 r / min for 15 minutes, degassed and separated under reduced pressure to obtain a spinning solution.

Embodiment 3

[0030] 1) Weigh 4.0g ascidian cellulose fiber and disperse it in 48g of 14%w / w NaOH solution;

[0031] 2) Cool to 0°C and stir for 1 min;

[0032] 3) Cool 49g of 24%w / w urea solution to 0°C and add it into the system obtained in 2), and stir it mechanically for 1min

[0033] 4) Centrifuge at 0°C and 8000 rad / min for 10 min to prepare spinning solution.

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Abstract

The invention discloses a preparation method and a product of sea squirt cellulose fiber spinning solution. The spinning solution is prepared by placing sea squirt cellulose in a proper solvent and dissolving and defoaming under the conditions of certain temperature and stirring. The sea squirt cellulose has a rich raw material resource; and the preparation process of the sea squirt cellulose fiber spinning solution has the advantages of simplicity, environmental friendliness, good repeatability, easiness in large-scale production, low cost and suitability for industrial production.

Description

technical field [0001] The present invention relates to the preparation method of cellulose fiber spinning liquid and its product, more precisely relates to dissolving sea squirt cellulose, sea squirt nano-cellulose crystal in ionic liquid, sodium hydroxide / urea / water system, lithium chloride A method for preparing cellulose fiber spinning solution in N, N-dimethylacetamide (LiCl / DMAc) system or N-methyl-morpholine-N-oxide (NMMO) system and its products. Background technique [0002] With the gradual reduction of fossil resource reserves and the increasingly serious environmental pollution caused by waste chemical cellulose textiles, the development and utilization of natural fiber materials has become one of the hot spots that people pay attention to. Cellulose is the most abundant natural renewable resource on earth, and it is mainly synthesized by photosynthesis of plants and tunicates (such as sea squirts). According to statistics, the total amount of biological cellulo...

Claims

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Application Information

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IPC IPC(8): D01D1/02D01F2/00D01F2/02
Inventor 朴光哲李健荣张青张大为
Owner QINGDAO UNIV OF SCI & TECH
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