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A kind of metal oxide macro fiber and preparation method thereof

A macro-fiber, oxide technology, applied in wet spinning, stretch spinning, rayon of inorganic raw materials, etc., can solve the problems of poor mechanical properties, unstable structural properties, and difficult application of nanofibers, and achieve excellent The effects of mechanical properties, low cost, and controllable preparation conditions

Active Publication Date: 2017-07-07
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing simple and controllable metal oxide macroscopic fibers, so as to change the composite nanofibers containing metal oxides that can only be obtained by existing preparation methods, and the nanofibers have poor mechanical properties, Unstable structural performance, difficult application and other shortcomings

Method used

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  • A kind of metal oxide macro fiber and preparation method thereof
  • A kind of metal oxide macro fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] TiO 2 、K 2 CO 3 , Li 2 CO 3 , and MoO 3 Mixed in a mass ratio of 1.73:1.67:0.13:1.27, heated at 1073K for 0.5h, cooled to room temperature, and then heated at 1473K for 20h; washed with deionized water to finally obtain K 0.8 [Ti 1.73 Li 0.27 ]O 4 crystal; the K 0.8 [Ti 1.73 Li 0.27 ]O 4 The crystals were reacted in 0.5 mol / L HCl solution for 48 hours, and filtered to obtain H 1.07 Ti 1.73 o 4 ; put H 1.07 Ti 1.73 o 4 Place in tetramethylammonium hydroxide solution, shake, react for 7 days, centrifuge and wash the solid with water to obtain Ti 0.87 o 2 0.52- ; Other metal oxides can be obtained by replacing raw materials.

Embodiment 2

[0027] Ti with a mass fraction of 0.8mg / mL 0.87 o 2 0.52- The colloid aqueous solution was added to the wet spinning equipment, injected into the aqueous solution containing 0.6wt% chitosan at a spinning speed of 0.5mL / min, and the fiber was stretched and oriented at a stretching speed of 2 times to obtain a primary fiber. The as-spun fibers were washed three times with deionized water until the waste liquid was neutral, and dried at 25°C for 24 hours to obtain well-oriented titanium oxide fibers.

Embodiment 3

[0029] Ti with a mass fraction of 0.8mg / mL 0.87 o 2 0.52- The colloidal aqueous solution was added to the wet spinning equipment, injected into the aqueous solution containing 0.6% chitosan at a spinning speed of 1.5mL / min, and the fiber was stretched and oriented at a stretching speed of 2 times to obtain a primary fiber . The as-spun fibers were washed three times with deionized water and dried at 25°C for 24 hours to obtain well-oriented titanium oxide fibers.

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Abstract

The invention relates to a metal oxide macroscopic fiber and a preparation method thereof, comprising adding an anionic metal oxide colloidal aqueous solution into wet spinning equipment as a spinning stock solution; extruding the spinning stock solution from the wet spinning equipment thin stream; injecting the extruded thin stream into a coagulation bath containing a flocculant to obtain primary fibers; using deionized water to repeatedly wash and dry the obtained primary fibers to obtain metal oxide fibers. The preparation process of the invention is simple and controllable, and is easy to produce in large quantities. The metal oxide fiber with special physical and chemical properties is prepared for the first time by the invention, which has a wide range of applications in the fields of smart textiles, biomedicine, energy recovery and conversion, and microelectronic devices.

Description

technical field [0001] The invention relates to a method for preparing a fiber, in particular to a metal oxide macroscopic fiber and a method for preparing the same. Background technique [0002] Fiber devices have a unique one-dimensional structure and diverse functions, and have more and more applications in many fields such as smart textiles, sensors, drives, lithium-ion batteries, and dye-sensitized batteries. Therefore, research on fibers and their preparation methods has become one of the most active development directions in the current scientific and technological field. At present, the preparation methods of fibers mainly include wet spinning, dry spinning, melt spinning, gel spinning and electrospinning. Among them, the wet spinning method has the advantages of simple method, easy control of the preparation process, and a wide range of materials that can be prepared, and is a commonly used method in the fiber preparation process. The preparation process of the we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/08D01D5/06D01D5/12D01D10/06
Inventor 耿凤霞侯俊宇郑远川
Owner SUZHOU UNIV
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