Preparation method of In2O3 particles/In2O3 fiber composite material as well as obtained product

A fiber composite material, in2o3 technology, used in fiber processing, spinning solution preparation, textile and papermaking, etc., to achieve the effect of large output, single product composition and low price

Inactive Publication Date: 2018-06-08
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the preparation of indium oxide products with other shapes by electrospinning. Therefore, by selecting a suitable precursor spinning system and improving the preparation process of electrospinning, research on Indium oxides with special microscopic shapes 2 o 3 The formation mechanism and gas-sensing properties of fiber materials will greatly enrich In 2 o 3 The synthesis technology of gas-sensitive materials has important theoretical and practical significance

Method used

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  • Preparation method of In2O3 particles/In2O3 fiber composite material as well as obtained product
  • Preparation method of In2O3 particles/In2O3 fiber composite material as well as obtained product
  • Preparation method of In2O3 particles/In2O3 fiber composite material as well as obtained product

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1.1 Dissolve 0.2593 g of sucrose and 0.0819 g of p-phenylenediamine in 4 mL of DMF, then add 1 mL of ethanol, 0.5642 g of indium chloride (InCl 3 ), 0.8000 g of PVP to form a mixed solution, and stirred until transparent to obtain a precursor spinning solution.

[0029] 1.2 The precursor fiber was obtained by electrospinning the precursor spinning liquid. The spinning parameters were: positive voltage 18KV, negative voltage 0.5 KV, receiving distance 18 cm, and syringe advancing speed 0.001 mm / s.

[0030] 1.3 Place the precursor fiber in a muffle furnace, raise the temperature from room temperature to 600 °C at a rate of 1 °C / min in an air atmosphere, keep it for 2 h, and obtain the product after the sample is cooled with the furnace.

[0031] The XRD result of the product is as follows figure 1 As shown, it can be seen from the figure that all the diffraction peaks are consistent with the standard XRD card (06-0416), proving that the obtained product is cubic ferroma...

Embodiment 2

[0033] 2.1 Dissolve 0.1217 g of sucrose and 0.0664 g of p-phenylenediamine in 4 mL of DMF, then add 1 mL of ethanol, 0.3611 g of InCl 3 , 0.6749 g of PVP to form a mixed solution, stirred until transparent to obtain a precursor spinning solution.

[0034] 2.2 The precursor fiber was obtained by electrospinning the precursor spinning solution. The spinning parameters were: positive voltage 16KV, negative voltage 0.5 KV, receiving distance 20 cm, and syringe advancing speed 0.002 mm / s.

[0035] 2.3 Place the precursor fiber in a muffle furnace, and raise the temperature from room temperature to 650 °C at a rate of 2 °C / min in an air atmosphere, and keep it warm for 9 h. After the sample is cooled with the furnace, In 2 o 3 Particles / In 2 o 3 fiber composites. The composite material has good dispersion and no agglomeration phenomenon. It is composed of In 2 o 3 Spherical particles and In 2 o 3 Fiber composite, in which the surface of the spherical particles are long with ...

Embodiment 3

[0037] 3.1 Dissolve 0.3810 g of sucrose and 0.0697 g of p-phenylenediamine in 4 mL of DMF, then add 1 mL of ethanol, 0.6545 g of InCl 3 , 0.7404 g of PVP to form a mixed solution, stirred until transparent to obtain a precursor spinning solution.

[0038] 3.2 The precursor fiber was obtained by electrospinning the precursor spinning solution. The spinning parameters were: positive voltage 20KV, negative voltage 0.5 KV, receiving distance 16 cm, and syringe advancing speed 0.001 mm / s.

[0039] 3.3 Place the precursor fiber in a muffle furnace, raise the temperature from room temperature to 550 °C at a rate of 1 °C / min in an air atmosphere, and keep it warm for 3 h. After the sample is cooled with the furnace, In 2 o 3 Particles / In 2 o 3 fiber composites. The composite material has good dispersion and no agglomeration phenomenon. It is composed of In 2 o 3 Spherical particles and In 2 o 3 Fiber composite, in which the surface of the spherical particles are long with In ...

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Abstract

The invention discloses a preparation method of In2O3 particles/In2O3 fiber composite material as well as the obtained product. The preparation method comprises the following steps: mixing cane sugar,p-phenylenediamine and dimethylformamide, adding ethanol, soluble indium salt and polyvinylpyrrolidone into the obtained mixture, and stirring until transparency to obtain a precursor spinning solution; and performing an electrostatic spinning method on the precursor spinning solution to obtain precursor fiber and performing heat treatment to obtain the final product. A novel precursor spinning solution system is designed, and a cubic ferromanganese ore type In2O3 particle/In2O3 fiber composite material with adjustable size and special appearance is prepared by the electrostatic spinning method. The raw materials are low in price, the synthesis process is simple and convenient, the reaction system is stable, the product is high in appearance repeatability, high in yield and easy in large-scale production, and the obtained product has large application potential in the field of a gas-sensitive material.

Description

technical field [0001] The present invention relates to an In 2 o 3 particles / In 2 o 3 The preparation method of fiber composite material and the resulting product, specifically relate to a kind of by In 2 o 3 Spherical particles and In 2 o 3 Cubic ferromanganese-type In 2 o 3 particles / In 2 o 3 The preparation method of the fiber composite material and the obtained product. Background technique [0002] Gas sensors can convert information such as the type and concentration of detected gases into electrical signals, and play an important role in modern medical and health care, food industry, energy technology, space technology and other fields. Gas-sensitive materials are the core of gas sensors. They have high detection sensitivity to different types of gases, and their resistance values ​​can change regularly with different gas concentrations. At present, gas-sensing materials mostly use typical metal oxide semiconductors as research objects, which have t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/08D01D1/02D01D5/00
CPCD01D1/02D01D5/003D01F9/08
Inventor 马谦李绘陈迎韩智峰张进涛方圆王思嘉李永涵杨萍
Owner UNIV OF JINAN
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