Method for efficiently preparing titanium-based-carbon three-dimensional crimped nano fibers

A nanofiber and three-dimensional crimping technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, textiles and papermaking, etc., can solve problems such as unfavorable development of nano-preparation methods, achieve field improvement, facilitate large-scale industrial production, and expand the scope of application Effect

Active Publication Date: 2016-10-26
苏州纤创智造新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on air spinning, which is not conducive to the development of nano-preparation methods.

Method used

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  • Method for efficiently preparing titanium-based-carbon three-dimensional crimped nano fibers
  • Method for efficiently preparing titanium-based-carbon three-dimensional crimped nano fibers
  • Method for efficiently preparing titanium-based-carbon three-dimensional crimped nano fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-efficiency preparation of TiO 2 -C three-dimensional crimped nanofiber method, comprising the steps:

[0032] (1) Add polyvinylpyrrolidone polymer to the solvent, dissolve at 0-100°C for 2-8 hours, add glacial acetic acid and tetrabutyl titanate solution to the polymer solution, and obtain polyvinylpyrrolidone / TiO 2 polymer solution.

[0033] (2) the polyvinylpyrrolidone / TiO obtained in step (1) 2 Polymer solution, in the solution jet spinning technology, the apparent viscosity of the solution is 4512mPa s, the airflow temperature is 90°C, the diameter of the spinneret hole is 0.5mm, the airflow slit is 0.3mm, and the air flow rate of the air inlet is 900m 3 / h, the air flow at the exhaust port is 1800m 3 / h, the propulsion speed is 20ml / h, the spinning air pressure is 0.12MPa, and the receiving distance is 50cm. Polyvinylpyrrolidone / TiO prepared by solution jet spinning 2 Fiber felt.

[0034] (3) Polyvinylpyrrolidone / TiO obtained in step (2) 2 On the basi...

Embodiment 2

[0037] A method for efficiently preparing TiC-C three-dimensional curled nanofibers, comprising the steps of:

[0038] (1) Add polyacrylonitrile to the organic solvent N,N-dimethylformamide, dissolve at 80°C for 1 hour, add glacial acetic acid and tetrabutyl titanate to obtain polyacrylonitrile / TiO 2 solution.

[0039] (2) the polyacrylonitrile / TiO that step (1) obtains 2 solution, prepared to the range of spinnable concentration, and the optimized polyacrylonitrile / TiO was prepared by solution jet spinning technology 2 nanofiber felt. In the solution jet spinning technology, the apparent viscosity of the solution is 4512mPa s, the airflow temperature is 90°C, the diameter of the spinneret hole is 0.5mm, the airflow slit is 0.3mm, and the gas flow rate of the air inlet is 900m 3 / h, the air flow at the exhaust port is 1800m 3 / h, the propulsion speed is 15ml / h, the spinning air pressure is 0.12MPa, and the receiving distance is 50cm.

[0040] (3) polyacrylonitrile / TiO obt...

Embodiment 3

[0045] A preparation of high-efficiency Ti(C 1-X N X )-C three-dimensional crimped nanofiber method, comprising the steps:

[0046] (1) Add polyacrylonitrile to the organic solvent N,N-dimethylformamide, dissolve at 80°C for 1 hour, add glacial acetic acid and tetrabutyl titanate to obtain polyacrylonitrile / TiO 2 solution.

[0047] (2) the polyacrylonitrile / TiO that step (1) obtains 2 solutions, formulated to a range of spinnable concentrations, and optimized polyacrylonitrile / TiO 2 nanofiber felt. In solution jet spinning and electrospinning technology, the apparent viscosity of the solution is 4512mPa s, the airflow temperature is 90°C, the diameter of the spinneret hole is 0.5mm, the airflow slit is 0.3mm, and the air flow rate of the air inlet is 900m 3 / h, the air flow at the exhaust port is 1800m 3 / h, the propulsion speed is 10ml / h, the spinning air pressure is 0.12MPa, the voltage is 25KV, and the receiving distance is 50cm.

[0048] (3) polyacrylonitrile / TiO ob...

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Abstract

The invention provides an efficiently-prepared titanium-based-carbon three-dimensional crimped nano fiber material and a preparation method thereof. According to the material, polyacrylonitrile and titanium dioxide are adopted as raw materials, Ti-based nano fibers are prepared through three spinning technologies (static spinning, rotor spinning and combination of static spinning / rotor spinning); pre-oxidation, low-temperature carbonization and carbothermal reactions are carried out, and the Ti(TiO2, TiC, Ti(Cl-xNx), TiN)-based-C nano fiber three-dimensional crimped nano fiber material is prepared in gas shield. The application range and application of a nano titanium-based compound and a carbon-based hybridization three-dimensional crimped nano fiber material in the fields of high temperature resistance, corrosion resistance, aging resistance, electro-catalysis, strength resistance and friction resistance and electrochemistry are greatly widened, and the material is applied more and more widely in later industrialization.

Description

technical field [0001] The invention relates to a method for efficiently preparing Ti(TiO 2 , TiC, Ti(C 1-X N X ), TiN)-based-C nanofibers, specifically involving the use of nanofiber preparation techniques (solution jetting, electrospinning or a combination of the two) to prepare Ti-based-C nanofiber materials. Background technique [0002] Compared with traditional fibers, nanofibers are characterized by smaller diameter, lighter weight, and larger specific surface area, so they have higher surface energy and produce a series of different effects, including surface effects, small size effects, quantum size effects, and macroscopic tunnel effects. It has a wide range of applications in separation and filtration, biological and medical therapy, battery materials, as reinforcements for polymers, in electronic and optical devices, and in enzymes and catalysis. Although the nanofiber market is vast, the production efficiency of nanofibers is still generally low, and the numb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/22D01F9/21D01F1/10
CPCD01F1/10D01F9/21D01F9/22
Inventor 王宁鲁克振任建宇张兴祥陈雪妍陈洋
Owner 苏州纤创智造新材料科技有限公司
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