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A kind of nanofiber tube membrane and preparation method thereof

A fiber tube membrane and nanotechnology, which is used in fiber processing, spinning solution preparation, filament/line forming, etc., can solve the complex preparation process, poor continuity of fiber tube membrane, and unadjustable fixed diameter and membrane pores. and other problems, to achieve the effect of good continuity, simple operation and cost reduction

Active Publication Date: 2019-04-30
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a method for preparing nanofiber tube membranes, which is used to solve the complex preparation process of existing nanofiber tube membranes, the poor continuity of fiber tube membranes, and the inability to fix the tube diameter and membrane pores. tuning problem

Method used

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  • A kind of nanofiber tube membrane and preparation method thereof
  • A kind of nanofiber tube membrane and preparation method thereof
  • A kind of nanofiber tube membrane and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0030] see figure 1 as well as figure 2 , this embodiment provides a method for preparing a nanofiber tube film using an electrospinning machine, and the method for preparing a nanofiber tube film includes the following steps:

[0031] S10. Preliminary preparation for preparing nanofibers by electrospinning;

[0032] figure 2 As shown, the output voltage of the high-voltage power supply 3 of the electrospinning machine is set to 15kv, the nozzle of the spinning machine is designed with a single needle, and the distance between the receiving plate 6 and the nozzle is set to 18cm;

[0033] Prepare a spinning solution, the spinning solution includes by weight: 8-12 parts of polyaniline, 4-6 parts of dodecylbenzenesulfonic acid, 6-10 parts of polyacrylonitrile and 220-280 parts of chloroform, in In this embodiment, the spinning solution is prepared by dissolving 1 g of polyaniline, 0.5 g of dodecylbenzenesulfonic acid and 8 g of polyacrylonitrile in 25 ml of chloroform soluti...

Embodiment 2

[0039] A method for preparing a nanofiber tube film using an electrospinning machine is provided, and the method for preparing the nanofiber tube film includes the following steps:

[0040] (1) Preparation of nanofibers by electrospinning

[0041] The output voltage of the high voltage power supply 3 of the electrospinning machine is set to 10kv, the nozzle of the spinning machine is designed with double needles, and the distance between the receiving plate 6 and the nozzle is 15cm;

[0042] preparing a spinning solution, the spinning solution comprising by weight: 10-15 parts of polyaniline, 4-8 parts of d-camphorsulfonic acid, 70-110 parts of polylactic acid and 250-330 parts of dimethylformamide, In this embodiment, the spinning solution is specifically prepared by dissolving 1.3 g of polyaniline, 0.6 g of d-camphorsulfonic acid and 9 g of polylactic acid in 30 ml of dimethylformamide solution.

[0043] (2) Nanofiber coated core yarn

[0044] and figure 2 Similarly, a c...

Embodiment 3

[0049] A method for preparing a nanofiber tube film using an electrospinning machine is provided, and the method for preparing the nanofiber tube film includes the following steps:

[0050] (1) Preparation of nanofibers by electrospinning

[0051] The output voltage of the high-voltage power supply 3 of the electrospinning machine is set to 20kv, the nozzle is designed with a single needle, and the distance between the receiving plate and the nozzle is 20cm;

[0052] A spinning solution was prepared, and the spinning solution was prepared by dissolving 10 g of polyacrylonitrile in 40 ml of dimethylformamide solution.

[0053] (2) Nanofiber coated core yarn

[0054] Such as image 3As shown, 6 core yarns 2 are placed parallel to the receiving plate at 40 mm in front of the receiving plate, with an interval of 3 cm between the core yarns. The core yarns 2 are located in the middle of the electrospinning range as a whole. 80 lbs; after the spinning started, the polymer jet 42 ...

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Abstract

The invention discloses a tubular nanofiber membrane and a preparation method thereof. The preparation method comprises the following steps: 1, setting of parameters of an electrostatic spinning machine: a high-voltage power supply of the electrostatic spinning machine is set to be 10-20 Kv, and the distance between a receiving plate and a spray nozzle is 15-20 cm; 2, wrapping of nanofibers with core yarn: water-soluble vinylon staple fiber yarn is chosen as the core yarn, the core yarn is arranged 20-40 cm in front of the receiving plate of the electrostatic spinning machine in parallel, the spray nozzle of the electrostatic spinning machine is controlled to spray a spinning solution outwards, the core yarn is pulled to move from one end of the receiving plate to the other end of the receiving plate, and a continuous long tubular membrane is formed on the surface of the core yarn; 3, dissolution of the core yarn: the wrapping yarn is put into a water solution at the temperature of 80-95 DEG C to be oscillated, the core yarn is dissolved, and the tubular nanofiber membrane is obtained. The preparation method of the tubular nanofiber membrane has the advantages of being simple to operate, low in cost and suitable for large-scale industrial production and can be used for preparing tubular membranes with different tubular diameters and different porosity, and the prepared tubular nanofiber membrane has good continuity.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a nanofiber tube membrane and a preparation method thereof. Background technique [0002] Electrospinning is often used to prepare nanometer to micrometer fibers and their products. Polymer fibers and their products have a wide range of potential applications, such as gas, liquid or molecular filtration materials, tissue engineering materials such as artificial blood vessels, nerve guides, three-dimensional scaffolds and artificial skin, wound accessories, drug sustained release and other living materials, skin Mask materials such as cleaning, skin self-healing and skin care, military materials such as chemical defense and anti-virus, sensor materials such as heat, electricity, biology and gas, microelectronic components, electromagnetic protection, photosensitive materials, super aerospace materials, etc. Existing fiber tubes are basically prepared by weaving, knitting or non-w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D01D5/00D01D1/02D06C7/04
CPCD01D1/02D01D5/003D01D5/0076D04H1/728D06C7/04
Inventor 严涛海
Owner MINJIANG UNIV