Soybean protein and PVA (Polyvinyl Alcohol) blend fiber as well as preparation method and applications thereof

A technology of soybean protein fiber and soybean protein, applied in the direction of cellulose/protein conjugated artificial filament, wet spinning method, conjugated synthetic polymer artificial filament, etc., can solve the problem of large difference in expansion and failure of bicomponent fiber and other issues, to achieve the effect of improving tensile strength, low cost, and environmental friendliness

Inactive Publication Date: 2013-07-10
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the research, it was found that soy protein and polyvinyl alcohol had too much difference in the expansion of each component in water, and the two-component fiber was not successful.

Method used

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  • Soybean protein and PVA (Polyvinyl Alcohol) blend fiber as well as preparation method and applications thereof
  • Soybean protein and PVA (Polyvinyl Alcohol) blend fiber as well as preparation method and applications thereof
  • Soybean protein and PVA (Polyvinyl Alcohol) blend fiber as well as preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Soy protein powder preparation: First add 6%sodium hydroxide alkali solution to the cake powder to control the pH value of 10 (the solution is alkaline) to fully dissolve the protein in the water; then filter the residue removal, add methyl acid regulationThe pH value of the filter fluid is to the equal electric point (the pH value is between 4.4-4.8), the soy protein precipitation is precipitated, the normal pressure is filtered, and it is dried at 30-50 ° C to get the soybean protein powder.

[0024] Preparation of soybean protein solution: add soybean protein powder to the solvent of a acetate solvents, configure a solution with a concentration of 10 % (W / W), stir at 70 ° C for 24h, and the solution obtained at a centrifugal speed of 12000rpm 2 times, 10min each time, take each time, take each time, take each time, take 10min each time, take each time, take each time, take 10min each time, take each time, take each time, take each time, take 10min each time, take each ti...

Embodiment 2

[0028] Take the soy protein powder prepared in the Practice Example 1 and add a solvents with a concentration of 15 % (W / W) at the configuration of the concentration of 12H at 40 ° C.The upper layer of clearing solution is the soy protein solution (the concentration is 3%).

[0029] Take polyethylene glycol to add methic acid, stir at 30 ° C for 8h, get a polyvinol solution of 5%(W / W), and then add soybean protein solution, stir at a speed of 800 R / min at 30 ° C for 10 minutes, get soybeans to get soybeansProtein: PVA = 2: 8 The common solution.The obtained mixed solution is condensed to 14 WT%(W / W) at 70 ° C, that is, the spinning raw solution is obtained.

[0030] Smash the spinning lines and remove the vacuum and remove it. At 80 ° C saturated ammonium sulfate solidified bath, the obtained wire was cleaned twice in the ion water, stretched and wrapped, and finally dried at 50 ° C.product.

Embodiment 3

[0032] Take the soy protein powder prepared in the Practice Example 1 and add a solution with a concentration of 12 % (W / W) at a concentration of 12 % (W / W). Stir at 60 ° C for 24 hours.The upper layer of liquid is the soy protein solution (the concentration is 7%).

[0033] Take polyethylene glycol to add oxalic acid, stir at 30 ° C for 8h, get a polyvinol solution of 5%(w / w), and then add soybean protein solution. Under 30 ° C, stir at a speed of 800 R / min to mix 10 min for 10 min to get obtainedSoy protein: PVA = 3: 7 The common solution.The obtained solution is condensed to 10 % (W / W) at 40 ° C to obtain the spinning raw solution.

[0034] Smoil the spinning lines to remove the vacuum, and the saturated sodium sulfate solidarity bath at 20 ° C is pumped. After washing the obtained wire twice in the ion water, it stretchs and wraps it.See Fiber's scanning electron microscopy photos figure 2 Essence

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Abstract

The invention discloses a soybean protein and PVA (Polyvinyl Alcohol) blend fiber as well as a preparation method thereof. The blend fiber comprises the raw materials of soybean protein fibers and PVA nanoparticles; the PVA nanoparticles takes up 1-9% of the blend fiber in percentage by weight; and the particle sizes of the PVA nanoparticles range from 20-200nm, and the PVA nanoparticles are evenly dispersed in the soybean protein fibers. According to the prepared blend fiber, the tensile strength and the elongation break rate of the soybean protein fibers can be improved, the comprehensive properties of the blend fiber can be enhanced, thereby making up for the deficiencies of natural fibers such as cotton, sesame, wool and natural silk, and being suitable for being massively applied to clothes, decorative cloths, industrial cloths and the like.

Description

Technical field [0001] The present invention involves a soybean protein fiber, which specifically involves a polyethylene glycol (PVA) nanoparticle modified soy protein mixed fiber. Background technique [0002] In the 1980s, due to the lack of petroleum resources and gradually becoming a shortage of shortage, environmentally friendly materials for renewable resources to produce renewable resources have become daily needs, and industrial demand has become increasingly larger.On the other hand, agricultural and sideline products such as soy protein generated in the processing of renewable resources and oil processing provide rich protein for this demand.Comprehensive use of modern chemical technology, reorganization of genetics, and contemporary polymer, adhesive and petroleum derivatives. Today's researchers are developing plastic, adhesives, carriers, coatings, drugs, thin films and other soy protein products. [0003] In the middle of the twentieth century, Japan first studied ...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/10D01D5/06
Inventor 刘大刚马忠实宋建伟
Owner NANJING UNIV OF INFORMATION SCI & TECH
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