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A method for preparing zirconia nanofibers by bubble spinning

A technology of bubble spinning and nanofibers, which is applied in fiber processing, electrospinning, fiber chemical characteristics, etc. It can solve the problems of no similar products, achieve low cost, ensure smooth continuity, and increase production.

Active Publication Date: 2018-06-08
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Bubble electrospinning is a spinning technology proposed through mechanical principles and mathematical methods. At present, there is no similar product at home and abroad.

Method used

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  • A method for preparing zirconia nanofibers by bubble spinning
  • A method for preparing zirconia nanofibers by bubble spinning
  • A method for preparing zirconia nanofibers by bubble spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of as-spun fiber is the method for the bubble spinning of polyacrylonitrile (PAN) to prepare zirconia nanofiber, and its processing route is as follows:

[0050] (1) First, dissolve 1g of zirconium oxychloride (Cl2OZr) in 1g of N-N dimethylacetamide (DMAC) solvent, then add it into a water bath and stir it into a complete solution at 60°C; Nitrile 1.5g (PAN) was dissolved in 12.5gN-N dimethylacetamide (DMAC) solvent, then added to a water bath and stirred at 90°C to form a complete solution; then the two solutions were mixed, and 0.2gZrO2 was added Nanoparticle stabilizer and 0.3g polyethylene glycol, and finally stir evenly in an ultrasonic mixer for 3h to become the final bubble spinning solution;

[0051] (2) Add the spinning solution to the spinning solution tank of the rotary bubble spinning, and connect the positive spinneret to the high-voltage power supply for bubble spinning, and connect the negative pole to the receiving plate, the receiving distance is...

Embodiment 2

[0055] A kind of as-spun fiber is the method for the bubble spinning of polyvinyl alcohol (PVA) to prepare zirconia nanofiber, and its process route is as follows:

[0056] (1) First dissolve 1.5g of zirconium acetate in 3g of deionized water, then stir it into a complete solution at room temperature; at the same time dissolve 4.5g of polyvinyl alcohol (PVA) in 42g of deionized water, and then add it to the water bath Stir at 90°C to form a complete solution state; then mix the two solutions, add 0.5g yttrium oxide (Y2O3) nanoparticle stabilizer and 0.5g polyethylene glycol, and finally stir evenly in an ultrasonic stirrer for 2h to become the final solution. Bubble spinning solution;

[0057] (2) Add the spinning solution to the spinning solution tank of the rotary bubble spinning, and connect the positive spinneret to a high-voltage power supply for bubble spinning, and connect the negative pole to the receiving plate with a receiving distance of 15cm. Under the condition o...

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Abstract

The invention provides a method for preparing zirconium oxide nanometer fiber through bubble spinning. The method comprises the following concrete steps of at room temperature, firstly, dissolving zirconium salts into a solvent; then, performing mixing and stirring with nanometer particles for inhibiting the growth of zirconium oxide colloidal particles by using a dispersing agent; adding polymers to obtain a bubble spinning solution; inputting the spinning solution into a liquid storage pool of bubble spinning equipment; meanwhile, connecting a positive electrode spinning jet to a high-voltage power supply to perform bubble spinning; obtaining a composite nanometer fiber membrane on a negative electrode receiving plate; performing pre-oxidation in a baking oven; then, putting the composite nanometer fiber membrane into a vacuum box type furnace to be subjected to calcination treatment; then, putting the composite nanometer fiber membrane into a muffle furnace to be subjected to high-temperature calcination; finally obtaining the zirconium oxide nanometer fiber membrane. The method provided by the invention has the advantages that the preparation process is simple; the cost is low; the volume of production is great; the scale mass production can be conveniently realized; meanwhile, good high-temperature-resistant performance is realized; the application prospects are wide.

Description

technical field [0001] The invention relates to the field of preparation of high-temperature resistant inorganic oxide fibers, in particular to a method for preparing zirconia nanofibers by bubble spinning. Background technique [0002] Zirconium dioxide (ZrO2) is a ceramic material with excellent mechanical properties, thermal properties and photoelectric properties. With the development of advanced composite materials and their application in high-tech fields, oxide ceramic structural fibers have been paid more and more attention. Ceramic fibers have the advantages of relatively light weight, high temperature resistance, good thermal stability, low thermal conductivity, and small specific heat capacity, and can be used as lightweight refractory materials and structural reinforcement materials with excellent performance. In addition to the characteristics of high temperature resistance and high strength, ceramic structural fibers also have the characteristics of strong cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/10D01D5/00
CPCD01D5/003D01D5/0076D01D5/0092D01F9/10
Inventor 何吉欢李雅沈靖
Owner SUZHOU UNIV
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