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Method for preparing peanut protein composite fiber by using ionic liquid

A technology of ionic liquid and peanut protein, which is applied in the direction of spinning solution preparation, fiber chemical characteristics, cellulose/protein conjugated artificial filament, etc., can solve the problem of low solubility of peanut protein, high production equipment requirements, high consumption of strong acid and strong Alkali and other problems, to achieve good moisture absorption and air permeability, low cost, uniform reaction effect

Inactive Publication Date: 2012-07-18
SHANDONG PEANUT RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing peanut protein fiber production process, the solubility of peanut protein is not high, resulting in waste of raw materials; the process of dissolving, defoaming, and spinning requires high temperature treatment, harsh reaction conditions, and high requirements for production equipment; the production process requires a lot of strong acid and alkali, which will seriously corrode the equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The peanut protein extracted from peanut meal was dissolved in 30% imidazole ionic liquid 1-ethyl-3-methylimidazolium acetate [EMIM]AC to prepare a peanut protein ionic liquid solution with a concentration of 25%. Vinyl alcohol was dissolved in 5% imidazole ionic liquid 1-ethyl-3-methylimidazole acetate [EMIM] AC to obtain a 18% polyvinyl alcohol ionic liquid solution, and the above two The solution is mixed according to the ratio of 1:5, mixed at 65°C for 2-3 hours, then adding boric acid with a solid content of 0.02% and hydrogen peroxide with a solid content of 0.04% (boric acid and hydrogen peroxide are auxiliary agents) to obtain spinning The stock solution, the spinning stock solution is degassed and sprayed by a vertical spinning machine, and then enters the coagulation bath. The coagulation bath includes a mixed solution of sodium sulfate, sulfuric acid and acetic acid with an acidity of 2.6mol / L (acidity is 0.0009-0.0018mol / L). The peanut protein / polyvinyl alco...

Embodiment 2

[0024] Peanut protein extracted from peanut meal was dissolved in 30% imidazole ionic liquids 1-butyl-3-methylimidazole acetate [BMIM]AC and 1-ethyl-3-methylimidazole acetate [EMIM] In the mixed solution of AC (ratio 1:1), a peanut protein ionic liquid solution with a concentration of 20% was prepared, and polyvinyl alcohol was dissolved in an imidazole ionic liquid 1-butyl-3-methylimidazole with a concentration of 20%. Acetate [BMIM]AC and 1-ethyl-3-methylimidazolium acetate [EMIM]AC mixed solution (ratio 1:1), prepared a polyvinyl alcohol ionic liquid solution with a concentration of 18%, the The above two solutions were mixed according to the ratio of 1:4, mixed at 65°C for 3 hours, and sodium tetraborate with a solid content of 0.02% and hydrogen peroxide with a solid content of 0.04% were added to prepare a spinning stock solution, and the spinning stock solution was degassed Afterwards, it is sprayed by a vertical spinning machine and enters a coagulation bath. The coag...

Embodiment 3

[0026] Peanut protein extracted from peanut meal was dissolved in 30% imidazole ionic liquid 1-butyl-3-methylimidazole acetate [BMIM]AC, 1-ethyl-3-methylimidazole acetate [EMIM] ]AC and 1-methyl-3-methylimidazole dimethyl phosphate [MMIM][DMP] (ratio 1:1:1), prepared a peanut protein ionic liquid solution with a concentration of 25% , Dissolve polyvinyl alcohol in 10% imidazole ionic liquid 1-butyl-3-methylimidazole acetate [BMIM]AC, 1-ethyl-3-methylimidazole acetate [EMIM] In the mixed solution of AC and 1-methyl-3-methylimidazolium phosphate [MMIM][DMP] (the ratio is 1:1:1), a polyvinyl alcohol ionic liquid solution with a concentration of 17% was prepared , mix the above two solutions according to the ratio of 1:3, mix at 75°C for 2 hours, add sodium tetraborate with a solid content of 0.02% and hydrogen peroxide with a solid content of 0.04%, to obtain a spinning stock solution, spinning stock solution After defoaming, it is spun by a vertical spinning machine and enters ...

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Abstract

The invention discloses a method for preparing a peanut protein composite fiber by using ionic liquid. The method comprises the following steps of: dissolving peanut protein and polyvinyl alcohol in imidazole ionic liquid respectively to obtain a peanut protein ionic liquid solution and a polyvinyl alcohol ionic liquid solution; mixing the peanut protein ionic liquid solution and the polyvinyl alcohol ionic liquid solution in a mixed ratio of 1:3-1:5; adding an aid to obtain a spinning solution, and entering a coagulating bath; preparing a peanut protein / polyvinyl alcohol composite fiber by awet spinning method in the coagulating bath; and stretching, washing, performing acetal treatment, applying oil, drying, curling, sizing, and thus obtaining the mixed fiber. By the method, the ionic liquid instead of strong acid and strong alkali is used as a solvent in the process of synthesizing a peanut protein fiber, so that the peanut protein and the polyvinyl alcohol can be quickly dissolved at high concentration and a low temperature, and the preparation process is non-toxic and pollution-free at the same time.

Description

[0001] technical field [0002] The invention relates to a method for preparing peanut protein composite fiber, in particular to a method for preparing peanut protein composite fiber by using ionic liquid. The method uses peanut cake and polyvinyl alcohol as raw materials and uses imidazole Ionic liquid solution was used as solvent to prepare peanut protein composite fiber. [0003] Background technique [0004] The development of raw materials is the most important and the most basic technical means in the development of new textile products. Under the wave of advocating nature and advocating green consumption all over the world, it has become an inevitable trend for the development of my country's textile industry to adopt high-tech to develop high-performance fibers and green textile products. In order to adapt to the characteristics of comfortable wearing, light weight, warmth, nutrition and health care, the functions of textile products such as comfort and beauty, con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/10D01F1/10D01F11/02D01F11/06D01D1/02
Inventor 孙杰杨庆利于丽娜刘少芳张初署毕洁朱凤
Owner SHANDONG PEANUT RES INST
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