Nanofiber membrane, preparation method and application

A nanofiber membrane and reaction raw material technology, applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of chemical reagent residue, damage to fiber structure, easy aggregation of inorganic nanoparticles, etc., to achieve increased breaking strength, The effect of improving elongation at break

Active Publication Date: 2018-03-09
东隆家纺股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example: Chinese patent, title of invention: a method for preparing a hybrid nanofiber synchronously reinforced and toughened CFRP composite material with highly oriented MWNTs, application date: 2012.06.28, publication date: 2012.11.28, application announcement number: CN102794952A, This patent discloses a method of reinforcing and toughening nanofiber membranes with carbon nanotube (CNT) fillers. Although this method can improve the mechanical properties of nanofibers, inorganic nanoparticles are easy to agglomerate, which affects its further application.
Chinese patent, title of invention: a treatment method for improving the mechanical properties of silk fibroin nanofibers, application date: 2015.05.19, publication date: 2015.09.09, application announcement number: CN104894856A, which discloses a method using chemical Cross-linking is a method to improve the mechanical properties of nanofiber membranes. Although this method can enhance the mechanical properties of nanofiber membranes to a certain extent, the chemical reagents used are toxic and harmful, and there are problems such as residual chemical reagents.
But to a certain extent, the structural shape of the fiber is destroyed

Method used

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  • Nanofiber membrane, preparation method and application
  • Nanofiber membrane, preparation method and application
  • Nanofiber membrane, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The initiator is: azobisisobutyronitrile; the solvent is: N, N-dimethylformamide; the terminator is: p-hydroxyphenol.

[0053] S1: Preparation of terpolymer: methyl methacrylate, acrylic acid, polyethylene glycol methacrylate, and azobisisobutyronitrile in a mass ratio of 80:15:5:1.5.

[0054] ① Weigh polyethylene glycol methacrylate and put it into N, N-dimethylformamide, fully dissolve;

[0055] ② Introduce nitrogen, and add acrylate, acrylic acid and azobisisobutyronitrile under nitrogen atmosphere;

[0056] ③Put it in a water bath oscillator for reaction, the working temperature of the water bath oscillator is 70°C, the working time is 16h, and the reaction is terminated with p-hydroxyphenol;

[0057] ④ Evaporation of solvent, vacuum drying to constant quality;

[0058] ⑤ Wash the crude product 3 times alternately with deionized water and absolute ethanol at room temperature;

[0059] ⑥ Vacuum drying to constant quality to obtain purified acrylate, acrylic acid, ...

Embodiment 2

[0064] The initiator is: azobisisobutyronitrile; the solvent is: N, N-dimethylformamide; the terminator is: p-hydroxyphenol.

[0065] S1: Preparation of terpolymer: methyl methacrylate, acrylic acid, polyethylene glycol methacrylate, and azobisisobutyronitrile in a mass ratio of 80:15:5:1.5.

[0066] ① Weigh polyethylene glycol methacrylate and put it into N, N-dimethylformamide, fully dissolve;

[0067] ② Introduce nitrogen, and add acrylate, acrylic acid and azobisisobutyronitrile under nitrogen atmosphere;

[0068] ③Put it in a water bath oscillator for reaction, the working temperature of the water bath oscillator is 70°C, the working time is 16h, and the reaction is terminated with p-hydroxyphenol;

[0069] ④ Evaporation of solvent, vacuum drying to constant quality;

[0070] ⑤ Wash the crude product 3 times alternately with deionized water and absolute ethanol at room temperature;

[0071] ⑥ Vacuum drying to constant quality to obtain purified acrylate, acrylic acid, ...

Embodiment 3

[0076] The initiator is: azobisisobutyronitrile; the solvent is: N, N-dimethylformamide; the terminator is: p-hydroxyphenol.

[0077] S1: Preparation of terpolymer: methyl methacrylate, acrylic acid, polyethylene glycol methacrylate, and azobisisobutyronitrile in a mass ratio of 80:15:5:1.5.

[0078] ① Weigh polyethylene glycol methacrylate and put it into N, N-dimethylformamide, fully dissolve;

[0079] ② Introduce nitrogen, and add acrylate, acrylic acid and azobisisobutyronitrile under nitrogen atmosphere;

[0080] ③Put it in a water bath oscillator for reaction, the working temperature of the water bath oscillator is 70°C, the working time is 16h, and the reaction is terminated with p-hydroxyphenol;

[0081] ④ Evaporation of solvent, vacuum drying to constant quality;

[0082] ⑤ Wash the crude product 3 times alternately with deionized water and absolute ethanol at room temperature;

[0083] ⑥ Vacuum drying to constant quality to obtain purified acrylate, acrylic acid, ...

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Abstract

The invention discloses an electrostatic spinning nanofiber membrane. Acrylic ester, acrylic acid and polyethylene glycol methacrylate are polymerized into a copolymer. Then, a metal salt solvent is added to the copolymer to prepare a spinning solution, and the spinning solution is injected into an electrostatic spinning device to carry out electrostatic spinning. According to the nanofiber membrane, a preparation method and application, under the precondition of not obviously influencing nanofiber surface morphology, the breaking tenacity of the nanofiber membrane is effectively increased byone to two times; when the amount of an added copper chloride substance is 10% of that of an acrylic acid substance in the copolymer, the mechanical property of the nanofiber membrane is the best, thebreaking tenacity of the nanofiber membrane is 35.12 MPa, and the breaking elongation rate is 26.91%.

Description

technical field [0001] The invention relates to the field of preparation and application of polymer materials, in particular to an electrospinning nanofiber membrane, a preparation method and an application thereof. Background technique [0002] Electrospinning, also known as electrospinning, is currently one of the most convenient and effective methods for preparing nanoscale or submicron fibers. It can prepare nanofiber membranes with large specific surface area, controllable morphology, and diverse components. Smooth surface, uniform distribution and other advantages. Therefore, electrospun fibers are widely used in the fields of biomedicine, optoelectronics, textile engineering, catalytic carriers, and wastewater treatment. However, the diameter of the fibers produced by electrospinning is usually several hundred nanometers, which makes the mechanical properties of the fibers generally poor, and it is difficult to apply to places with high mechanical properties, which g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D01D5/00D01F6/52D01F1/10C08F283/06C08F220/06C08F220/14C08F220/18
CPCD01D5/0015D01F1/10D01F6/52D04H1/728C08F283/065C08F220/18C08F220/1802C08F220/1804
Inventor 刘新华郭志广李永
Owner 东隆家纺股份有限公司
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