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Preparation method of clay/titanium dioxide/polyaniline conductive composite material

A conductive composite material, titanium dioxide technology, applied in the field of organic-inorganic composite materials, can solve the problems of conductive composite materials such as impurity removal, achieve the effect of not easy to fall off, solve a large amount of waste acid solution, and prevent agglomeration

Active Publication Date: 2014-06-25
常州纳欧新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problems to be solved by the present invention are as follows: firstly, in the washing process for the preparation of the polyaniline conductive composite material, the problem of the removal of impurities caused by a large amount of doped acid in the conductive composite material due to washing; The problem of a large amount of spent acid solution generated in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepare 0.6kg of titanium sulfate into a 15g / L solution, then add 1kg of mica to the titanium sulfate solution, adjust the temperature to 60°C, add 0.5mol / L ammonia solution to neutralize to pH = 1.5 under stirring, and keep the reaction 1h, filter and dry, heat treatment at 475°C for 2h, and pulverize to obtain mica / titanium dioxide composite material;

[0026] Put 1 kg of mica / titanium dioxide composite material in the reactor, raise the temperature to 185 ° C, and pass 0.2 kg of aniline vapor into the reactor under stirring.

[0027] Control the temperature at 5°C, add 2.86L of 0.6mol / L ammonium persulfate aqueous solution to the above system dropwise, the dropwise addition is completed in 1h, continue the reaction for 2h, wash and filter (the pH value of the filtrate (washing liquid) is detected to be 6, which is basically neutral ), dried to obtain the mica / titanium dioxide / polyaniline conductive composite.

[0028] The composite material is loose, easy to crush, ...

Embodiment 2

[0030] Prepare 1.2kg of titanium sulfate into a 120g / L solution, then add 1kg of vermiculite to the titanium sulfate solution, adjust the temperature to 90°C, add 2.5mol / L ammonia solution to neutralize to pH=2.5 under stirring, and keep warm React for 5 hours, filter and dry, heat-treat at 575°C for 5 hours, and pulverize to obtain a vermiculite / titanium dioxide composite material;

[0031] Put 1 kg of vermiculite / titanium dioxide composite material in the reactor, raise the temperature to 260°C, and feed 0.6 kg of aniline vapor into the reactor under stirring.

[0032] Control the temperature at 30°C, add 5.15 L of 1.5 mol / L ammonium persulfate aqueous solution to the above system dropwise, the dropwise addition is completed in 3 hours, continue to react for 24 hours, wash and filter (the pH value of the filtrate (washing solution) is detected to be 6, which is basically neutral ), dried to obtain a vermiculite / titanium dioxide / polyaniline conductive composite.

[0033] The...

Embodiment 3

[0035] Prepare 0.8kg of titanium sulfate into a 40g / L solution, then add 1kg of diatomaceous earth to the titanium sulfate solution, adjust the temperature to 70°C, add 1mol / L ammonia solution to neutralize to pH = 1.7 under stirring, and keep warm React for 2 hours, filter and dry, heat-treat at 500°C for 2.5 hours, and pulverize to obtain a diatomite / titanium dioxide composite material;

[0036] Put 1 kg of diatomaceous earth / titanium dioxide composite material in the reactor, raise the temperature to 200 ° C, and pass 0.3 kg of aniline vapor into the reactor under stirring. The time for passing the aniline vapor is 4 hours, and react for 4 hours after passing through;

[0037] Control the temperature at 10°C, add 4.03 L of 0.8 mol / L ammonium persulfate aqueous solution to the above system dropwise, the dropwise addition is completed in 1.5 hours, continue to react for 4 hours, wash and filter (the pH value of the filtrate (washing liquid) is detected to be 6, which is basica...

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Abstract

The invention belongs to the field of organic-inorganic composite materials and in particular relates to a preparation method of a clay / titanium dioxide / polyaniline conductive composite material. The preparation method is characterized by synthesizing polyaniline on the surface of a nuclear body by using clay / titanium dioxide as the nuclear body, polyaniline as the shell and sulfuric acid chelated on the clay / titanium dioxide nuclear body during preparation of the clay / titanium dioxide nuclear body as a dopant, thus preparing the clay / titanium dioxide / polyaniline conductive composite material. By adopting the preparation method, on the one hand, the problem of impurity removal of plenty of doping acids caused by washing of the conductive composite material in the washing process for polyaniline conductive composite material preparation is solved, and on the other hand, the problem that plenty of waste acid solutions are generated in the conductive composite material preparation process is solved.

Description

technical field [0001] The invention belongs to the field of organic-inorganic composite materials, and in particular relates to a preparation method of a clay / titanium dioxide / polyaniline conductive composite material. Background technique [0002] The preparation process of polyaniline is simple, and the raw materials are easy to obtain. It not only has the characteristics of diversified structures, but also has a special doping mechanism. Doped polyaniline is a new type of organic polymer conductive material with excellent performance. It has good application prospects in the fields of secondary batteries, semiconductor devices, electrodes, antistatic, and electromagnetic shielding. However, polyaniline is insoluble and infusible, difficult to process and expensive to prepare. The composite preparation of polyaniline and inorganic substances has become one of the ways to solve this problem. Documents Journal of Materials Science, 2012, 47(1), 420-428; Macromolecules, 20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08K3/34C08K3/22C08G73/02
CPCC08G73/0266C08K3/22C08K3/346C08K2003/2241C08L79/02
Inventor 姚超叶凯吴凤芹徐斌海左士祥刘文杰丁运生马晓敏
Owner 常州纳欧新材料科技有限公司
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