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Method for preparing conductive polymer based electromagnetic composite material

An electromagnetic composite material and conductive polymer technology are applied in the field of preparation of conductive polymer-based electromagnetic composite materials, which can solve the problems of limiting the application field of composite materials, poor dispersion of the composite, and many process steps, and achieve a good application prospect. , fast preparation, good reproducibility

Inactive Publication Date: 2013-06-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these methods have the following defects: more process steps, higher cost, and poor dispersion of the prepared composite in aqueous solution, which limits the application field of this composite material
There is no report on the preparation of the above-mentioned monodisperse conductive polymer-based electromagnetic composite material

Method used

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  • Method for preparing conductive polymer based electromagnetic composite material
  • Method for preparing conductive polymer based electromagnetic composite material
  • Method for preparing conductive polymer based electromagnetic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] At room temperature, weigh 2.315g Fe 3 o 4 and 2.315g SDS were added to the beaker, then 200ml deionized water was added, and ultrasonically dispersed for 30min to obtain Fe 3 o 4 aqueous suspension. Weigh 0.186g of aniline into a beaker, then add 200ml of deionized water, and ultrasonically disperse for 30min to form a monomer dispersion. Weigh 0.912g of ammonium persulfate into a beaker, then add 200ml of deionized water, and ultrasonically disperse for 30min to form an initiator solution. Will Fe 3 o 4 The aqueous phase suspension, monomer dispersion and initiator solution were added to three syringes, and injected continuously into their respective microtubes at the pushing speed of 50 μl / min, 10 μl / min and 5 μl / min respectively, and the three reaction liquid flows Mix in the reaction tube after passing through the microtube. A polytetrafluoroethylene reaction tube with a diameter of 600 μm was placed in an ultrasonic pool and reacted for 10 min under the con...

Embodiment 2

[0034] At room temperature, weigh 3.315g Fe 3 o 4 and 0.663g SDS were added to the beaker, then 200ml deionized water was added, and ultrasonically dispersed for 60min to obtain Fe 3 o 4 aqueous suspension. Weigh 1.3418g of pyrrole into a beaker, then add 200ml of deionized water, and ultrasonically disperse for 60min to form a monomer dispersion. Weigh 8.109g of ferric chloride into the beaker, then add 200ml of deionized water, and ultrasonically disperse for 60min to form an initiator solution. Will Fe 3 o 4The aqueous phase suspension, monomer dispersion and initiator solution were added to three syringes, and injected continuously into their respective microtubes at the pushing speed of 100 μl / min, 50 μl / min and 20 μl / min respectively, and the three kinds of reaction liquid flow Mix in the reaction tube after passing through the microtube. A polytetrafluoroethylene reaction tube with a diameter of 900 μm was placed in an ultrasonic pool, and reacted for 20 minutes ...

Embodiment 3

[0036] At room temperature, weigh 4.315g Fe 3 o 4 and 1.438g SDS were added to the beaker, then 200ml deionized water was added, and ultrasonically dispersed for 50min to obtain Fe 3 o 4 aqueous suspension. Weigh 1.0814g of o-phenylenediamine into a beaker, then add 200ml of deionized water, and ultrasonically disperse for 50min to form a monomer dispersion. Weigh 6.109g of ferric chloride into the beaker, then add 200ml of deionized water, and ultrasonically disperse for 40min to form an initiator solution. Will Fe 3 o 4 The aqueous phase suspension, monomer dispersion and initiator solution were added to three syringes, and injected continuously into their respective microtubes at the pushing speed of 80 μl / min, 40 μl / min and 15 μl / min respectively, and the three kinds of reaction liquid flow Mix in the reaction tube after passing through the microtube. A polytetrafluoroethylene reaction tube with a diameter of 700 μm was placed in an ultrasonic pool and reacted for 1...

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Abstract

The invention relates to a method for preparing a conductive polymer based electromagnetic composite material. The method comprises the following steps of: respectively preparing magnetic powder suspending liquid, monomer dispersion liquid and an initiator solution, filling the magnetic powder suspending liquid, the monomer dispersion liquid and the initiator solution into three injectors, and continuously injecting the magnetic powder suspending liquid, the monomer dispersion liquid and the initiator solution into respective microtubules at a constant pushing speed respectively; mixing the reaction solutions in a reaction tube after the reaction solutions flow through the microtubules, and performing fluid reaction polymerization at room temperature under ultrasound assistance; and performing magnetic separation, washing, and freeze-drying on the product to obtain the conductive polymer based electromagnetic composite material. The method is simple, low in energy consumption, good in repeatability, capable of realizing continuous and fast preparation of the product, and easy to realize industrial production; and the prepared conductive polymer based electromagnetic composite material is uniform in particle size, large in specific area, stable in physical and chemical properties, difficult to agglomerate, good in dispersity and excellent in electromagnetic comprehensive performance, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of electromagnetic composite materials, in particular to a preparation method of conductive polymer-based electromagnetic composite materials. Background technique [0002] Electromagnetic composite materials have excellent comprehensive electromagnetic properties due to their combination of magnetic and electrical properties, and are widely used in new energy, electronics, and military industries. Monodisperse electromagnetic composite materials are more attractive in scientific research and industrial production because of their advantages such as large specific surface area. Realizing the continuous and rapid preparation of monodisperse, large specific surface area electromagnetic composite materials is of great significance in scientific research and industrial applications. [0003] Microchannel continuous flow reaction (Reaction in continuous flow) is a microchannel high-throughput and easy to sc...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08G73/06C08K3/22
Inventor 王宏志王刚赵德李耀刚张青红
Owner DONGHUA UNIV
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