Device and method of preparing electrostatic spinning polymer/inorganic particle nano-composite film

A nano-composite, inorganic particle technology, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of affecting fiber fineness and filamentation effect, inability to take advantage of the ultra-high specific surface area structure of nanoparticles, and uneven dispersion. Achieve the effects of flexible optional range, wide application range and simple operation process

Inactive Publication Date: 2014-01-01
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, most nanoparticles are embedded in the fiber matrix, so they cannot take advantage of the super high specific surface area and unique structure of nanoparticles
Secondly, the choice of solvent will also be severely limited, not only the solubility of the polymer in the solvent, but also the dispersibility of the nanoparticles in the solvent, otherwise it will lead to uneven dispersion of various materials in the solution, and then Affect fiber fineness and silk effect

Method used

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  • Device and method of preparing electrostatic spinning polymer/inorganic particle nano-composite film
  • Device and method of preparing electrostatic spinning polymer/inorganic particle nano-composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, polymer spinning solution was prepared in polymer spinning solution storage tank 7, and 60ml of chloroform and 20ml of absolute ethanol were measured and mixed evenly, then 8g of polylactic acid was added, and magnetically stirred at 40°C for 2h. Then prepare an impregnation solution, weigh 0.05 g of carbon nanotubes, add 200 ml of absolute ethanol, and ultrasonically disperse for 20 minutes to make the dispersion even.

[0035] Inject the above-mentioned dipping liquid into the dipping tank 3 until the lower part of the receiving drum 4 is immersed in the above-mentioned dipping liquid, then start the motor 5 to make the receiving drum 4 rotate at a speed of 500r / min; connect the high-voltage power supply 6 and apply a voltage of 20kv , to form a high-voltage electrostatic field between the syringe 1 and the receiving drum 4;

[0036] Simultaneously open syringe pump 2, under the advance speed of 1ml / h, the polymer spinning liquid in the polymer spinning liquid ...

Embodiment 2

[0038]First, polymer spinning solution was prepared in polymer spinning solution storage tank 7, and 50 ml of dimethylacetamide was measured, then 5 g of polyvinylidene fluoride was added, and magnetically stirred at 60° C. for 2 hours. Then prepare an impregnation solution, weigh 0.1 g of graphene oxide, add 500 ml of distilled water, and ultrasonically disperse for 15 minutes to make the dispersion even.

[0039] Inject the above-mentioned dipping liquid into the dipping tank 3 until the lower part of the receiving drum 4 is immersed in the above-mentioned dipping liquid, then start the motor 5 to make the receiving drum 4 rotate at a speed of 100r / min; connect the high-voltage power supply 6 and apply a voltage of 20kv , to form a high-voltage electrostatic field between the syringe 1 and the receiving drum 4;

[0040] Simultaneously turn on the syringe pump 2, and provide the polymer spinning solution in the polymer spinning solution storage tank 7 to the inside of the syr...

Embodiment 3

[0042] First, polymer spinning solution was prepared in polymer spinning solution storage tank 7, and 60ml of chloroform and 20ml of absolute ethanol were measured and mixed evenly, then 8g of polylactic acid was added, and magnetically stirred at 40°C for 2h. Then prepare an impregnation solution, weigh 0.05g of graphene, add 500ml of absolute ethanol, and ultrasonically disperse for 30min to make it evenly dispersed.

[0043] Inject the above-mentioned dipping liquid into the dipping tank 3 until the lower part of the receiving drum 4 is immersed in the above-mentioned dipping liquid, then start the motor 5 to make the receiving drum 4 rotate at a speed of 800r / min; connect the high-voltage power supply 6 and apply a voltage of 20kv , to form a high-voltage electrostatic field between the syringe 1 and the receiving drum 4;

[0044] Simultaneously open the syringe pump 2, and provide the polymer spinning solution in the polymer spinning solution storage tank 7 to the inside ...

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Abstract

The invention discloses a device and a method of preparing an electrostatic spinning polymer/inorganic particle nano-composite film. The device of preparing the electrostatic spinning polymer/inorganic particle nano-composite film comprises an injector, an injection pump, a dipping tank, a receiving roller, a motor, a high-voltage power supply and a polymer spinning liquid storage tank. The preparation method comprises a step of preparing the electrostatic spinning polymer/inorganic particle nano-composite film by adopting a method of preforming electrostatic spinning while carrying out dipping adsorption, inorganic nano-particles are attached on the surfaces of the fibers, an ultra-strong adsorption character of inorganic nanometer materials is fully exerted, and on-line continuous preparation of the electrostatic spinning nano-composite film is realized with a simple operation process. In addition, an optional range of impregnation liquid is flexible, different inorganic nano-particles can be adsorbed on the electrostatic spinning film according to the actual requirement, so that all kinds of functional nano-composite films can be prepared, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of electrospinning, and in particular relates to an electrospinning polymer / inorganic particle nanocomposite film preparation device and method. Background technique [0002] Electrospinning technology was first proposed by Formhals in 1934. This technology is to spray polymer melt or solution from the nozzle under the action of high-voltage electrostatic field to form a stable thin stream, then the solvent volatilizes, the fiber becomes thinner gradually, and finally collects and solidifies on the receiving device to form an ultra-fine A thin layer of randomly arranged fibers. Its core is to make the charged polymer melt or solution flow, deform and draw in an electric field, and then cool and solidify to obtain a fibrous substance. [0003] In recent years, electrospinning technology has played a very important role in the construction of nanocomposite structural materials, especially in the preparation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/413D04H1/4382
Inventor 徐志伟岳梦瑶陈磊吴腾飞单明景杨彩云买巍钱晓明
Owner TIANJIN POLYTECHNIC UNIV
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