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Method for preparing polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite by solvothermal method

A technology of nano-composite materials, ferroferric oxide, applied in the field of nano-composite materials, can solve problems such as environmental pollution, complicated preparation process, difficulty in obtaining high purity and excellent performance

Active Publication Date: 2016-02-10
山东奥达复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Method for preparing polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite by solvothermal method
  • Method for preparing polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite by solvothermal method
  • Method for preparing polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite by solvothermal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 2.424gFe(NO 3 ) 3 9H 2 O and 0.10mL aniline monomer were added to 48mL EtOH, stirred and dissolved, then transferred to a polytetrafluoroethylene reactor, and reacted for 10h at 200°C. 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 hours to obtain the composite material PANI-FF-1. A certain amount of the material was calcined at 700°C for 2 hours, 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 material had a magnetization of 7.53 emu / g.

Embodiment 2

[0039] The addition of aniline monomer is 0.50mL, 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 30.73emu / g.

Embodiment 3

[0041] The add-on of aniline monomer is 1.00mL, 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 a polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite. The PANI-Fe3O4 nanocomposite is prepared through one step by using iron nitrate nonahydrate and aniline (AN) as raw materials and ethanol as a solvent and utilizing a solvothermal method. The method has the beneficial effects that generation of inorganic Fe3O4 and organic PANI and effective composition of the two components are achieved through one step by adopting a single iron source and an AN monomer, without adding any alkaline precipitating agent, reducing agent or catalyst and even without surface modification of a Fe3O4 material, thus preparing the real nanoscale composite PANI-Fe3O4 with strong interaction between phases; in the composition process, Fe<3+> catalyzes polymerization of the AN monomer to form PANI while AN partially reduces Fe<3+> to Fe<2+>, thus ensuring conversion from Fe<3+> to Fe3O4; PANI can achieve the effects of effectively preventing agglomeration of Fe3O4 magnetic materials and obviously improving the magnetic property of Fe3O4.

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 Applications(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 山东奥达复合材料有限公司
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