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Method for preparing red algae agar fiber

An agar, red algae technology, applied in the chemical characteristics of fibers, textiles and papermaking, etc., to achieve the effect of rich raw materials, good biocompatibility and biodegradability

Active Publication Date: 2011-08-17
青岛源海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the research that carries out spinning with agar has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Rinse the asparagus with water to remove impurities such as salt and sediment;

[0019] (2) drying and pulverizing the asparagus obtained in step (1);

[0020] (3) Weigh 100g of asparagus dry powder, extract with 3L of acetone Soxhlet for 8 hours, wash the depigmented agar with distilled water, transfer it to 5L of distilled water, extract at 90°C for 2 hours, filter, remove solids, and obtain Agar polysaccharide solution; rotary evaporation to 500ml, adding 500ml of absolute ethanol to precipitate the polysaccharide, filtering, drying to obtain 25g of agar polysaccharide;

[0021] (4) Dissolve the above-mentioned agar polysaccharide in 300ml DMSO to obtain about 8% agar solution, filter, defoam and let stand for 8 hours to make a spinning solution, which is passed through a wet spinning machine at a rate of 25m / Spinning speed of min Spinning into the coagulation bath for coagulation and drafting, the coagulation bath is ethanol aqueous solution (volume ratio 1:1)...

Embodiment 2

[0023] (1) Rinse the asparagus with water to remove impurities such as salt and sediment;

[0024] (2) drying and pulverizing the asparagus obtained in step (1);

[0025] (3) Weigh 50g of dried asparagus, extract with 3L of petroleum ether Soxhlet for 8 hours, wash the depigmented asparagus in distilled water, transfer to 3L of distilled water, extract at 100°C for 4 hours, filter, and the filtrate is evaporated to 500ml, add 500ml of absolute ethanol to precipitate the polysaccharide, filter and dry to obtain 15g of agarose polysaccharide;

[0026] (4) Dissolve the above-mentioned agar polysaccharide in 300ml DMSO to obtain about 5% agar solution, filter, defoam and let stand for 6 hours to make a spinning solution, which is passed through a wet spinning machine at 15m Spinning speed / min Spinning into the coagulation bath for coagulation and drafting, the coagulation bath is ethanol aqueous solution (volume ratio 1:1), the temperature of the coagulation bath is 30°C, the dr...

Embodiment 3

[0028] (1) Rinse the asparagus with water to remove impurities such as salt and sediment;

[0029] (2) drying and pulverizing the asparagus obtained in step (1);

[0030] (3) Weigh 150g of asparagus dry powder, extract with 3L of ethanol Soxhlet for 8 hours, wash the depigmented agar gel with distilled water, transfer to 5L of distilled water, extract at 80°C for 3 hours, rotary evaporate to 800ml, add 800ml of anhydrous Precipitate the polysaccharide with ethanol, filter, and dry to obtain 31 g of agar;

[0031] (4) Dissolve the above-mentioned agar in 300ml DMSO to obtain about 10% agar solution, filter, defoam and let it stand for 6 hours to make a spinning solution, and the spinning solution is passed through a wet spinning machine at a rate of 10m / Spinning speed of min Spinning into the coagulation bath for coagulation and drafting, the coagulation bath is ethanol aqueous solution (volume ratio 1:1), the temperature of the coagulation bath is 40°C, the drafting ratio of...

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Abstract

The invention discloses a method for preparing a red algae agar fiber. The method comprises the following steps of: cleaning fresh red algae, removing impurities and air-drying; crushing red algae and removing color; extracting agar polysaccharide with hot water, purifying and drying to obtain agar polysaccharide which is suitable for spinning; preparing an agar polysaccharide spinning solution with a certain concentration, performing wet spinning by using an ethanol aqueous solution or DMF (Dimethyl Formamide) aqueous water as a coagulating bath to obtain spinnable agar fiber; and washing, performing ethanol dehydration and air-drying to obtain a fiber material. The method has the advantage of fully utilizing living marine resources along with low-cost and readily available raw materials; and the obtained agar fiber is a pure natural alginate fiber, has high biocompatibility and biodegradability and can be used for clothing industry and pharmaceutical industry.

Description

technical field [0001] The invention relates to a preparation method of natural fibers, in particular to a preparation method of gum-containing red algae agar fiber represented by asparagus. Background technique [0002] At present, human society is facing the double huge pressure of energy and environment, and the active development and utilization of natural products has become an important way to alleviate this pressure. The ocean has a vast area, accounting for about 70% of the earth's surface area, and contains rich biological resources, among which seaweed resources have huge biomass. Macroalgae in the ocean include brown, red, and green algae. Red algae are generally shade-loving algae, and the vertical distribution is mostly deep-sea. It is born near the low tide line or in the subtidal zone. It can grow at a depth of 30-100m below the low tide in clear water sea areas. Agar (agar), also known as agar, is a natural polysaccharide extracted from the cell wall of mar...

Claims

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Application Information

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IPC IPC(8): D01F9/00C08B37/12
Inventor 夏延致薛志欣付永强纪全孔庆山
Owner 青岛源海新材料科技有限公司
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