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Soybean separation protein/cellulose mixed solution, and preparation method and use thereof

A technology of soybean protein isolate and mixed solution, applied in the direction of cellulose/protein conjugated rayon, wet spinning, etc., to achieve the effect of simple and convenient operation, no pollution to the environment, and low price

Inactive Publication Date: 2008-04-30
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the CS produced by the viscose method 2 , heavy metals, etc., which seriously pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Disperse 0.5 g of soybean protein isolate in 190 g of a mixed aqueous solution containing 6-8 wt% NaOH and 10-14 wt% urea, stir evenly at room temperature until the isolate of soybean protein dissolves, pre-cool to -12°C, and immediately take the linters pulp (viscosity average molecular weight M η =8×10 4 ) 9.5 grams into it, fully stirred evenly (about 3 minutes) at 0° C., and the soybean protein isolate / cellulose mixed solution can be obtained. The dry weight ratio of cellulose and protein is 9.5:0.5, and the cellulose and protein together account for 5% of the solution.

Embodiment 2

[0016] Disperse 4 grams of soybean protein isolate in 192 grams of a mixed aqueous solution containing 6-8wt% NaOH and 10-14wt% urea, stir evenly at room temperature until the soybean protein isolate dissolves, pre-cool to -12°C, and immediately take the linters pulp (viscosity average molecular weight M η =10×10 4 ) 4 grams into it, fully stirred evenly (about 3 minutes) at 0° C., and the soybean protein isolate / cellulose mixed solution can be obtained. The dry weight ratio of cellulose and protein is 5:5, and the cellulose and protein together account for 4% of the solution.

Embodiment 3

[0018] Disperse 6 grams of soybean protein isolate in 184 grams of a mixed aqueous solution containing 6-8wt% NaOH and 10-14wt% urea, stir evenly at room temperature until the soybean protein isolate dissolves, pre-cool to -12°C, and immediately take the linters pulp (viscosity average molecular weight M η =6×10 4 ) 10 grams into it, fully stirred evenly (about 3 minutes) at 0° C., to obtain a soybean protein isolate / cellulose mixed solution. The dry weight ratio of cellulose to protein is 3:5, and the cellulose and protein together account for 8% of the solution.

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Abstract

The invention relates to soybean separation protein / cellulose mixed solution. Soybean separation protein is dispersed in the combination water solution of NaOH and carbamide, the combination water solution is agitated to be even to obtain 0.5 to 5 wt percent of soybean separation protein solution, then the prepared soybean separation protein solution is precooled to -12 to -13 DEG C, cellulose is added into the prepared soybean separation protein solution and then is agitated to be even to obtain the transparent soybean separation protein / cellulose mixed solution; the weight ratio of the soybean separation protein and the cellulose is 0.5:9.5 to 5:5, and the soybean separation protein and the cellulose occupy 4 to 8 wt percent of the mixed solution. Or the mixed water solution which is precooled to -12 to -13 DEG C and composed of the NaOH, the carbamide and the soybean separation protein is utilized to directly dissolve the cellulose to obtain the soybean separation protein / cellulose mixed solution. The obtained mixed solution can prepare soybean separation protein / cellulose film, soybean separation protein / cellulose fiber or other soybean separation protein / cellulose compound materials through a tape-casting way, etc.

Description

technical field [0001] The invention relates to a soybean protein isolate / cellulose mixed solution, a preparation method and application thereof. Background technique [0002] Plant cellulose is the most abundant renewable resource on the earth. Soy protein isolate, like cellulose, is an environmentally friendly material, and soy protein isolate has a wide range of sources and is cheap. Making full use of cellulose and protein can not only protect the environment, but also save limited petroleum resources. Recently, my country has used the technology and process of direct spinning of soybean protein isolate. The development of protein fiber is relatively rapid. Many advantages such as softness, moisture absorption, breathability, and no static electricity make it popular. The poor physical properties such as dyeability limit its production and application. The soy protein isolate / cellulose composite material can combine the advantages of both to make the material show more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/02C08L89/00C08J3/03D01F8/02D01D5/06
Inventor 张俐娜祁海松杨全岭
Owner WUHAN UNIV
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