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Polyphenylamine composition with clay ore as carrier and its preparing process

A technology of clay minerals and composite materials, which is applied in the field of polyaniline composite materials and preparation, can solve the problems of complicated process, high cost, and obstruction of polyaniline, and achieve the effects of wide application prospects, simple synthesis process, and wide source of raw materials

Inactive Publication Date: 2005-11-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex process and high cost, these methods mostly stay in the laboratory stage
In this sense, poor dispersion is still the main obstacle preventing polyaniline from being put into practical use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] 1) Add water to the separated and purified montmorillonite and stir evenly to make 1000ml of a suspension with a concentration of about 10%;

[0028] 2) Add 25ml of aniline to 1), and stir evenly;

[0029] 3) under the condition of constant stirring, add 40.7 grams of p-toluenesulfonic acid in 2);

[0030] 4) Under the condition of constant stirring, in 3), slowly drop in 250ml of ammonium persulfate solution whose concentration is 1M;

[0031] 5) react at room temperature for 12 hours, stirring constantly;

[0032] 6) The product is dehydrated by centrifugation, washed 4 times, and dehydrated again;

[0033] 7) Add 1% of the dispersant sodium triphosphate to the resultant of step 6, add water and stir to make a 20% ore slurry, and select appropriate spray drying equipment for drying. , the outlet temperature does not exceed 80°C, and a powder with a water content of less than 10% is obtained for use.

example 2

[0035] 1) Separate and purify the palygorskite, add water and stir evenly to make 1000ml of a suspension with a concentration of about 10%;

[0036] 2) Add 10ml of aniline to 1), and stir evenly;

[0037] 3) under the condition of constant stirring, add 35 grams of 12-alkylbenzenesulfonic acid in 2);

[0038] 4) Under the condition of constant stirring, slowly drop 100ml of potassium persulfate solution with a concentration of 1M in 3);

[0039] 5) react at room temperature for 12 hours, stirring constantly;

[0040] 6) The product is dehydrated by centrifugation, washed 4 times, and dehydrated again;

[0041] 7) Add 2% of the dispersant sodium triphosphate to the resultant of step 6, add water and stir to make a 20% ore slurry, select appropriate spray drying equipment for drying, and the air inlet temperature of the spray dryer should be controlled within the range of 120-180°C , the outlet temperature does not exceed 80°C, and a powder with a water content of less than 1...

example 3

[0043] 1) Add water and stir the kaolinite after separation and purification to make a suspension with a concentration of about 10% 1000ml;

[0044] 2) Add 10ml of aniline to 1), and stir evenly;

[0045] 3) under the condition of constantly stirring, in 2), add 25 grams of camphorsulfonic acid;

[0046] 4) Under the condition of constant stirring, in 3), slowly drop into 100ml of potassium dichromate solution whose concentration is 1M;

[0047] 5) react at room temperature for 12 hours, stirring constantly;

[0048] 6) The product is filtered or centrifugally dehydrated, washed 4 times, and dehydrated again;

[0049] 7) Add 2% of the dispersant sodium triphosphate to the resultant in step 6), add water and stir to make a suspension for use.

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PUM

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Abstract

A clay ore-carried polyphenylamine composite material is prepared through separating and purifying clay ore, preparing 5-15% suspension mineral slurry, adding phenylamine and hyaluronic acid, stirring while slowly dropping oxidizing trigger, reaction for 6-24 hr while stirring, then filtering and dewatering, washing 2-4 times, and spray-drying or preparing suspension. This composite material possesses both the easy dispersivity of clay mineral and the excellent physico-chemical property of polyphenylamine (conductivity and corrosion-proofness). Its advantages are high dispersity, electric conductivity and corrosion resistance, and low cost.

Description

technical field [0001] The invention relates to a polyaniline composite material with clay mineral as a carrier and a preparation method. Background technique [0002] Polyaniline (PANI) is a typical conductive polymer because of its diverse structure, high electrical conductivity, unique doping mechanism, excellent physical properties, good environmental stability, and cheap and easily available raw materials. , the advantages of simple synthesis method. [0003] Like other conductive polymers, polyaniline has relatively high electrical conductivity and dielectric constant, and is one of the most promising materials for shielding electromagnetic radiation and reducing or eliminating electromagnetic wave interference. In addition, polyaniline has anti-corrosion and anti-marine biological pollution properties, and can be used as metal anti-corrosion coatings, especially marine coatings. On the other hand, due to the strong intermolecular force and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08K3/00C08L79/02
Inventor 叶瑛周玉航
Owner ZHEJIANG UNIV
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