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Corn protein/cellulose mixed solution, and preparation method and use thereof

A technology of zein and mixed solution, which is applied in the field of zein/cellulose mixed solution and its preparation, can solve the problems of pollution, protein loss, etc., and achieve the effects of simple and convenient operation, less loss, and favorable industrial production

Inactive Publication Date: 2010-09-08
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing composite method is to dissolve cellulose by viscose method, then blend it with protein solution, and then make materials such as membrane and fiber. This process not only causes pollution, but also causes serious loss of protein in the desulfurization process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Disperse 0.5 g of zein 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 zein dissolves, pre-cool to -12°C, and immediately take the cotton linter pulp ( Viscosity average molecular weight M η =8×10 4 ) 9.5 grams into it, fully stirred evenly (about 3 minutes) at 0° C., to obtain a zein / cellulose mixed solution. 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 zein in 192 grams of a mixed aqueous solution containing 6-8 wt% NaOH and 10-14 wt% urea, stir evenly at room temperature until the zein dissolves, pre-cool to -12°C, and immediately take the linter pulp ( Viscosity average molecular weight M η =10×10 4 ) 4 grams into it, fully stirred evenly (about 3 minutes) at 0°C, to obtain a zein / cellulose mixed solution. 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 zein in 184 grams of a mixed aqueous solution containing 6-8 wt% NaOH and 10-14 wt% urea, stir evenly at room temperature until the zein dissolves, pre-cool to -12°C, and immediately take the linter pulp ( Viscosity average molecular weight M η =6×10 4 ) 10 grams into it, fully stirred evenly (about 3 minutes) at 0° C., and the zein / cellulose mixed solution can be prepared. 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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PUM

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Abstract

The invention discloses zein / cellulose mixed solution. Zein is dispersed in combined water solution including 6 to 8 wt percent of NaOH and 10 to 14 wt percent of urea, the solution is stirred uniformly under the room temperature to obtain 0.5 to 5 wt percent of zein solution, and then the prepared zein solution is precooled to -12 to -13 DEG C, cellulose is added into the zein solution, and the solution is stirred uniformly to obtain the transparent zein / cellulose mixed solution; wherein, according to the weight ratio, the proportion of the zein and the cellulose is 0.5:9.5 to 5:5, the zein and the cellulose account for 4 to 8 wt percent of the mixed solution, and the rest is the combined water solution of NaOH / urea. Or the cellulose is directly dissolved with mixed water solution precooled to -12 to -13 DEG C and composed of NaOH, urea, and zein to obtain the zein / cellulose mixed solution. The obtained mixed solution can prepare zein / cellulose membranes, fiber, and other composite materials through casting film forming and other methods.

Description

technical field [0001] The invention relates to a zein / cellulose mixed solution and its preparation method and application. Background technique [0002] Plant cellulose is the most abundant renewable resource on earth, and corn gluten, like cellulose, is an environmentally friendly material and comes from a wide range of sources. Making full use of corn cellulose and protein can not only protect the environment, but also save limited petroleum resources. Especially recently, the development of protein fiber is relatively rapid. Many advantages such as softness, moisture absorption, breathability, and no static electricity make it popular. Its production and application are limited. The zein / cellulose composite material can combine the advantages of both to make the material show more excellent performance. The existing composite method is to dissolve cellulose by viscose method, then blend it with protein solution, and then make materials such as membrane and fiber. This...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L89/00C08L1/02
Inventor 张俐娜祁海松杨全岭
Owner WUHAN UNIV