Solvothermal preparation method of polyaniline-ferric oxide nanocomposite material

A technology of nanocomposite materials, ferric oxide, applied in the field of nanocomposite materials, can solve the problems of high cost, complicated preparation process, difficulty in obtaining high purity and excellent performance

Active Publication Date: 2018-07-10
菏泽智慧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

Therefore, the composite PANI-Fe 3 o 4 Most of the preparation methods are complicated in the preparation process, difficult to strictly control the conditions, easy to cause environmental pollution, high in cost, and difficult to obtain composite materials with high purity and excellent performance.

Method used

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  • Solvothermal preparation method of polyaniline-ferric oxide nanocomposite material

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Experimental program
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Effect test

Embodiment 1

[0038] 2.424g Fe(NO 3 ) 3 9H 2 O and 0.10 mL of aniline monomer were added to 48 mL of EtOH, stirred and dissolved, then transferred to a polytetrafluoroethylene reactor, and reacted at 200 °C for 10 h. After the reaction, centrifuge, wash with absolute ethanol, and twice with water, place in a drying oven, and dry at 90-100 °C for 9-11 h to obtain the composite material PANI-FF-1. A certain amount of the material was calcined at 700 °C for 2 h, and the actual composite amount of PANI in the composite material was calculated to be 21% according to the mass change before and after calcination. The composite has a magnetization of 7.53 emu / g.

Embodiment 2

[0040] The addition of aniline monomer is 0.50 mL, and other conditions are with embodiment 1, and the composite material PANI-FF-2 that obtains, with embodiment 1, the actual composite amount of PANI recorded in this composite material is 37%; Its magnetization is 30.73 emu / g.

Embodiment 3

[0042] The add-on of aniline monomer is 1.00 mL, and other conditions are with embodiment 1, and the composite material PANI-FF-3 that obtains, with embodiment 1, the actual composite amount of PANI recorded in this composite material is 48%; Its magnetization is 42.91 emu / g.

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Abstract

The invention provides a method for preparing polyaniline-ferric oxide nanocomposite material, which is prepared in one step by solvothermal method by using ferric nitrate nonahydrate and aniline as raw materials and ethanol as solvent. The present invention does not add any alkaline precipitant, reducing agent, catalyst, and does not need to carry out surface modification of ferric oxide material, and realizes the generation of inorganic-Fe3O4 and organic-polyaniline components by a single iron source and aniline monomer in one step And the effective combination of the two, PANI and Fe3O4 with strong interaction between the phases are prepared, and the composite material PANI-Fe3O4 on the real nanoscale. During the composite process, Fe3+ catalyzes the polymerization of aniline (AN) monomers to form PANI, and AN partially reduces Fe3+ to Fe2+, thereby ensuring the conversion of Fe3+→Fe3O4; and PANI can effectively prevent the agglomeration of Fe3O4 magnetic materials and significantly improve Fe3O4 magnetic properties.

Description

technical field [0001] The present invention relates to a kind of polyaniline-iron tetroxide (PANI-Fe 3 o 4 ) preparation of nanocomposite materials, in particular to a method for solvothermally preparing polyaniline-ferric oxide nanocomposite materials, which belongs to the technical field of nanocomposite materials. Background technique [0002] In recent years, PANI-Fe 3 o 4 Magnetic composite materials are widely used in electromagnetic shielding, electrochemical display equipment, microwave absorbing materials, metal anti-corrosion, stealth materials, etc. due to their excellent electromagnetic properties, so they have very broad application prospects. Currently, the preparation of PANI-Fe 3 o 4 The method of composite materials is mainly a two-step method, that is, the first step is to prepare Fe 3 o 4 , and then in situ polymerization of aniline monomers on its surface. For magnetic Fe 3 o 4 There are many preparation methods due to different iron sources, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08K3/22
Inventor 苏碧桃靳正娟董永永董娜何方振莘俊莲王其召
Owner 菏泽智慧新材料科技有限公司
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