A preparation method of poly-3-methylthiophene-coated nano-nickel-zinc ferrite particle magnetic liquid

A technology of nickel-zinc ferrite and zinc ferrite, applied in the direction of magnetic liquid, inorganic material magnetism, etc., to achieve the effect of improving stability

Inactive Publication Date: 2016-02-24
EAST CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the preparation of this type of magnetic liquid needs to overcome three difficulties: one is the stability of the conductive poly-3-methylthiophene-coated magnetic nano-ferrite particles; the other is the size control of the conductive poly-3-methylthiophene coating; The third is how to stably disperse the encapsulated nano-magnetic particles in the base carrier liquid

Method used

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  • A preparation method of poly-3-methylthiophene-coated nano-nickel-zinc ferrite particle magnetic liquid

Examples

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Effect test

Embodiment 1

[0013] A poly-3-methylthiophene-coated nano-nickel-zinc ferrite particle magnetic liquid, the preparation method of which is:

[0014] A. Put 31.32gFe(NO 3 ) 3 9H 2 O, 12.89gNi(NO 3 ) 2 ·6H 2 O, 24.57gZn(NO 3 ) 2 ·6H 2 O was dissolved in 250ml water to make a solution, and then 12.24g FeSO 4 ·7H 2 O was dissolved in 250ml water to form a solution, the above two solutions were poured into a three-necked flask for dissolution, and then 70mL of concentrated ammonia water was added, stirred for 20 minutes, then magnetically separated for 4 hours, washed with deionized water until pH = 7.0, and 82.02g Fe ( NO 3 ) 3 9H 2 O is dissolved in 500ml water to form Fe(NO 3 ) 3 9H 2 O solution, the Fe(NO 3 ) 3 9H 2 The O solution was poured into the washed solution and boiled for 30 minutes, magnetically separated until naturally cooled to room temperature, poured off the supernatant, washed repeatedly with deionized water until neutral, dried naturally in a vacuum drying ...

Embodiment 2

[0019] A poly-3-methylthiophene-coated nano-nickel-zinc ferrite particle magnetic liquid, the preparation method of which is:

[0020] A. Put 31.32gFe(NO 3 ) 3 9H 2 O, 12.89gNi(NO 3 ) 2 ·6H 2 O, 24.57gZn(NO 3 ) 2 ·6H 2 O was dissolved in 250ml water to make a solution, and then 12.24g FeSO 4 ·7H 2 O was dissolved in 250ml water to form a solution, the above two solutions were poured into a three-necked flask for dissolution, and then 70mL of concentrated ammonia water was added, stirred for 25 minutes, then magnetically separated for 5 hours, washed with deionized water until pH = 7.0, and 82.02g Fe ( NO 3 ) 3 9H 2 O is dissolved in 500ml water to form Fe(NO 3 ) 3 9H 2 O solution, the Fe(NO 3 ) 3 9H 2 The O solution was poured into the washed solution and boiled for 35 minutes, magnetically separated until naturally cooled to room temperature, poured off the supernatant, washed repeatedly with deionized water until neutral, dried naturally in a vacuum drying ...

Embodiment 3

[0025] A poly-3-methylthiophene-coated nano-nickel-zinc ferrite particle magnetic liquid, the preparation method of which is:

[0026] A. Put 31.32gFe(NO 3 ) 3 9H 2 O, 12.89gNi(NO 3 ) 2 ·6H 2 O, 24.57gZn(NO 3 ) 2 ·6H 2 O was dissolved in 250ml water to make a solution, and then 12.24g FeSO 4 ·7H 2 O was dissolved in 250ml water to form a solution, the above two solutions were poured into a three-necked flask for dissolution, and then 70mL of concentrated ammonia water was added, stirred for 30 minutes, then magnetically separated for 6 hours, washed with deionized water until pH = 7.0, and 82.02g Fe ( NO 3 ) 3 9H 2 O is dissolved in 500ml water to form Fe(NO 3 ) 3 9H 2 O solution, the Fe(NO 3 ) 3 9H 2 The O solution was poured into the washed solution and boiled for 40 minutes, magnetically separated until naturally cooled to room temperature, poured off the supernatant, washed repeatedly with deionized water until neutral, dried naturally in a vacuum drying di...

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Abstract

The invention discloses a method for preparing poly-3-methylthiophene coated nickel-zinc ferrite nanoparticle magnetic liquid. According to the method, nickel-zinc ferrite particles are coated with poly-3-methylthiophene by a surface in-situ synthesis method, so as to reach the effect that nickel-zinc ferrite nanoparticles are firmly wrapped by poly-3-methylthiophene; the method specifically comprises the steps of firstly preparing the nickel-zinc ferrite nanoparticles by adopting a coprecipitation method, then, preparing nickel-zinc ferrite ionic magnetic liquid from the prepared nickel-zinc ferrite nanoparticles, then, carrying out in-situ polymerization by adding 3-methylthiophene monomers and an initiator into the nickel-zinc ferrite ionic magnetic liquid so as to obtain nickel-zinc ferrite magnetic nanoparticles which are excellently coated by poly-3-methylthiophene, and finally, preparing the poly-3-methylthiophene coated nickel-zinc ferrite nanoparticle magnetic liquid from nickel-zinc ferrite / poly-3-methylthiophene composite particles.

Description

technical field [0001] The invention relates to a preparation method of a conductive polymer-wrapped nano-magnetic particle magnetic liquid, in particular to a preparation method of a poly-3-methylthiophene-wrapped nano-nickel-zinc ferrite particle magnetic liquid. Background technique [0002] Magnetic liquid refers to a highly stable colloidal solution composed of nano-magnetic particles whose size is smaller than a single magnetic domain and is highly dispersed in a liquid base carrier liquid. The dispersant of a general magnetic liquid is an organic polymer chain, which does not have Special properties, and once the original nano-magnetic particles and dispersant are coated with a layer of organic semiconductor in the magnetic liquid, a new type of organic-inorganic hybrid magnetic liquid emerges at the historic moment. The organic semiconductor combines with the magnetic liquid organic After the combination, the performance of organic semiconductors can make the magneti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/44H01F1/36
Inventor 乐长高谢宇潘建飞谢宗波黄彦李凤刘福明
Owner EAST CHINA UNIV OF TECH
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