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Zein-based uniaxial electrostatic spinning oriented fiber membrane and preparation method thereof

A zein, electrospinning technology, applied in cellulose/protein conjugated rayon, fiber processing, filament/thread forming, etc., can solve problems such as poor mechanical properties

Inactive Publication Date: 2020-10-30
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor mechanical properties of natural biomass corn by-products and traditional fossil resource synthetic materials are the biggest bottleneck in the development of this field. Therefore, it is urgent to study corn processing by-products to provide a new material with improved mechanical properties.

Method used

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  • Zein-based uniaxial electrostatic spinning oriented fiber membrane and preparation method thereof
  • Zein-based uniaxial electrostatic spinning oriented fiber membrane and preparation method thereof
  • Zein-based uniaxial electrostatic spinning oriented fiber membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing a zein-based uniaxial electrospinning oriented fiber film, comprising the following steps:

[0036] step 1:

[0037] Configuration volume concentration is 80% ethanol aqueous solution;

[0038] Dissolve polyethylene oxide and zein powder in ethanol aqueous solution, keep stirring at room temperature until the solution is fully mixed to obtain a mixed spinning solution; wherein, according to the mass ratio, polyethylene oxide:zein=1 : 10, the mass percentage concentration of polyethylene oxide and zein sum is 19%;

[0039] Step 2:

[0040] Put the mixed spinning solution in the electrospinning syringe, set the inner diameter of the needle of the syringe to 0.51mm, set the feed rate of the speed-controllable propeller to 2mL / h, connect the needle to the positive pole of the high DC power supply, and adjust the voltage to 15kV, the distance between the tip of the needle of the syringe and the surface of the grounded collector is 15cm, the controll...

Embodiment 2

[0042] With embodiment 1, difference is:

[0043] In this example, the addition amount of zein is 3:10.

[0044] The SEM morphology of the fiber membrane prepared by electrospinning the prepared polyethylene oxide and zein mixture solution is shown in figure 2 ,From figure 2 It can be seen that the prepared fiber membranes have consistent orientation.

[0045] The elemental distribution diagram of the fiber membrane prepared by electrospinning the prepared polyethylene oxide and zein mixture solution is shown in image 3 , which is measured by ESD, there is no obvious difference in the smooth fiber surface, and there is no phase separation between zein and polyethylene oxide during the electrospinning process and there is good biocompatibility.

[0046] Orientation analysis diagram of the fiber membrane prepared by electrospinning the mixed solution of polyethylene oxide and zein is shown in Figure 4 , from the digitized fibrous microstructure, structural features with ...

Embodiment 3

[0054] With embodiment 1, difference is:

[0055] In this example, the addition amount of zein is 5:10.

[0056] The SEM morphology of the fiber membrane prepared by electrospinning the prepared polyethylene oxide and zein mixture solution is shown in Figure 6 , and its degree of orientation is 0.87.

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Abstract

The invention discloses a zein-based uniaxial electrostatic spinning oriented fiber membrane and a preparation method thereof, and belongs to the technical field of corn by-product utilization and electrostatic spinning. The preparation method of the zein-based uniaxial electrostatic spinning oriented fiber membrane includes the steps that polyethylene oxide and zein powder are dissolved in an ethanol aqueous solution, and room temperature is maintained and stirring is carried out until the solution is fully mixed to obtain a mixed spinning solution; and the mixed spinning solution is placed in a reservoir of electrospinning equipment, wherein the reservoir is provided with a capillary tube, the rotating speed of a grounded collector is set at 2500-3500rpm, and uniaxial electrostatic spinning is performed to obtain the zein-based uniaxial electrostatic spinning oriented fiber membrane. The fiber membrane with a high degree of orientation can be prepared, super-hydrophobicity is shown,and the mechanical properties of the prepared zein-based uniaxial electrostatic spinning oriented fiber membrane are significantly improved.

Description

technical field [0001] The invention relates to the technical fields of corn by-product utilization and electrospinning, in particular to a zein-based uniaxial electrospinning oriented fiber film and a preparation method thereof. Background technique [0002] The by-products of corn processing (mainly cellulose and gliadin) are a kind of green and renewable energy. Compared with synthetic polymers, the synthetic biomass corn by-product-based functional materials are biodegradable, non-toxic, and non-toxic. Pollution, easy modification, good biocompatibility and renewable advantages. However, the poor mechanical properties of natural biomass corn by-products and traditional fossil resource synthetic materials are the biggest bottlenecks in the development of this field. Therefore, it is urgent to study corn processing by-products to provide a new material with improved mechanical properties. [0003] Many polymer solution forms, including solutions and melts, can be electros...

Claims

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Application Information

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IPC IPC(8): D04H1/74D01D5/00D01F8/02D01F8/16
CPCD01D5/0015D01D5/0061D01D5/0076D01F8/02D01F8/16D04H1/74
Inventor 张浩刘景圣王心雅甄诺薛瑾李响李云琦闵伟红田林赵城彬许秀颖曹勇吴玉柱
Owner JILIN AGRICULTURAL UNIV
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