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A kind of preparation method of porous nanofiber

A technology of nanofibers and nanoparticles, applied in the field of preparation of porous nanofibers, can solve problems such as poor hydrophilicity and dyeability, pollute the environment, and complicated operations, achieve the improvement of dyeing rate and color, protect the environment, and increase the specific surface area Effect

Active Publication Date: 2016-10-26
湖州菱创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used polyester is a synthetic fiber. Due to the regular molecular structure of polyester, its hydrophilicity and dyeability are poor. Traditional chemical modification consumes a lot of water and chemicals, which is not only complicated to operate, but also pollutes the environment.

Method used

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  • A kind of preparation method of porous nanofiber
  • A kind of preparation method of porous nanofiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolving the spinning material in a solvent, adding 10% polyvinylpyrrolidone, and stirring evenly, to prepare a nanofiber spinning solution; the mass ratio of the textile material to the solvent is 1:9, and the nanomaterials are polyester, polyacrylonitrile and One or more material mixtures in the copolymer and lignin, the solution is N,N-dimethyldiamide.

[0021] 5% SiO 2 Nanoparticles are added into the nanofiber polymer solution, stirred until uniform by magnetic force, and used as a spinneret solution.

[0022] Add the spinning solution to the electrospinning machine for electrospinning, the additional electric field strength is 0.2kv / cm, the distance between the receiving screen and the spinneret is 10cm, and the baking temperature is 400°C, and the SiO-containing 2 Nanoparticle fibers.

[0023] Will contain SiO 2 The nanofibers of the nanoparticles are soaked in 25% HF solution and stirred slowly for 8 hours, washed and dried to obtain a porous nanofiber fabr...

Embodiment 2

[0026] Dissolve the spinning material in the solvent, add 10% polyvinylpyrrolidone, stir well, and prepare the nanofiber spinning solution; the mass ratio of the textile material to the solvent is 1:5, and the nanomaterials are polyester, polyacrylonitrile and its One or more material mixtures in the copolymer and lignin, the solution is N,N-dimethyldiamide.

[0027] 13% SiO 2 Nanoparticles are added into the nanofiber polymer solution, stirred until uniform by magnetic force, and used as a spinneret solution.

[0028] Add the spinning solution to the electrospinning machine for electrospinning, the additional electric field strength is 2kv / cm, the distance between the receiving screen and the spinneret is 45cm, and the baking temperature is 650°C, and the SiO-containing 2 Nanoparticle fibers.

[0029] Will contain SiO 2 The nanofibers of the nanoparticles were soaked in 55% HF solution and stirred slowly for 16 hours, washed and dried to obtain a porous nanofiber fabric. ...

Embodiment 3

[0032] Dissolving the spinning material in a solvent, adding 10% polyvinylpyrrolidone, stirring evenly, to prepare a nanofiber spinning solution; the mass ratio of the textile material to the solvent is 1:7, and the nanomaterials are polyester, polyacrylonitrile and its One or more material mixtures in the copolymer and lignin, the solution is N,N-dimethyldiamide.

[0033] 8% SiO 2 Nanoparticles are added into the nanofiber polymer solution, stirred until uniform by magnetic force, and used as a spinneret solution.

[0034] Add the spinneret solution to the electrospinning machine for electrospinning, the additional electric field strength is 1kv / cm, the receiving screen is 35cm away from the spinneret, and the baking temperature is 550°C to prepare SiO-containing 2 Nanoparticle fibers.

[0035] Will contain SiO 2 The nanofibers of the nanoparticles are soaked in 45% HF solution and stirred slowly for 10 hours, washed and dried to obtain a porous nanofiber fabric.

[0036]...

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Abstract

A method for preparing porous nanofibers, comprising: dissolving a spinning material in a solvent, adding polyvinylpyrrolidone, and stirring evenly to prepare a nanofiber polymer solution; 2 Nanoparticles are added to the nanofiber polymer solution, magnetically stirred until uniform, and used as a spinning solution; the spinning solution is poured into the injector, and spinning is performed under the action of an additional electric field. By controlling the spinning time and moving Receiving screen obtained with SiO 2 Nanofibers of nanoparticles, calcined; will contain SiO 2 The nanofiber solution of the nanoparticle is soaked in the HF solution, stirred slowly, washed and dried, and the porous nanofiber fabric is obtained. The invention adopts the method of particle doping and removal, which can achieve the effect of making holes in the nanofibers, thereby providing the purpose of providing a comparative area of ​​the fabric and improving the dyeability.

Description

technical field [0001] The invention relates to a method for preparing porous nanofibers, in particular to a method for preparing porous nanofibers capable of improving dyeability. Background technique [0002] At present, with the improvement of people's living standards and the continuous updating of consumption concepts, consumers have higher and higher requirements on the quality, variety and color of fiber textiles, especially nanofiber textiles. The commonly used polyester is a synthetic fiber. Due to its relatively regular molecular structure, its hydrophilicity and dyeability are poor. Traditional chemical modification consumes a lot of water and chemicals, which is not only complicated to operate, but also pollutes the environment. [0003] At the same time, the use of electrospinning and high-temperature calcination technology equipment to prepare inorganic nanofibers is a method that has been widely used in recent years. The method is simple to operate, and the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F11/08D01F11/06D01F11/00D01F6/92D01F6/54D01F9/00
Inventor 袁振其
Owner 湖州菱创科技有限公司
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