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A kind of attapulgite/polyaniline/polystyrene composite particle and preparation method thereof

A technology of polystyrene and composite particles, applied in chemical instruments and methods, water/sludge/sewage treatment, other chemical processes, etc., can solve pollution and other problems, achieve large reaction surface area, high yield, and solve static problems Effect

Inactive Publication Date: 2018-10-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because microorganisms cannot degrade heavy metal pollutants, the pollution caused will be long-lasting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of attapulgite / polyaniline / polystyrene composite particle, its preparation method comprises the steps:

[0028] 1) Weighing of raw materials: Weighing raw materials according to the ratio;

[0029] 2) Pour 1g of polystyrene microspheres into 55mL of swelling agent (mixed with chloroform and absolute ethanol at a volume ratio of 1:6) and stir for swelling treatment. The rotation speed is kept at 100r / min, and the stirring time is 230s;

[0030] 3) Add 0.45g of aniline and 1.7g of attapulgite to 50mL of hydrochloric acid (1mol / L), stir for 12min, keep the rotation speed at 200r / min, then add the polystyrene spheres obtained in step 2), and continue stirring for 30min while maintaining the rotation speed;

[0031] 4) Oxidation reaction: add 1.14g oxidizing agent (ammonium persulfate) in 50mL hydrochloric acid (1mol / L), after dissolving completely, keep stirring condition, adopt dropping funnel, to described step 3) in the system obtained dropwise add oxidizing agent...

Embodiment 2

[0036] A kind of attapulgite / polyaniline / polystyrene composite particle, its preparation method comprises the steps:

[0037] 1) Weighing of raw materials: Weighing raw materials according to the ratio;

[0038] 2) Pour 1g of polystyrene microspheres into 65mL of swelling agent (mixed with chloroform and absolute ethanol at a volume ratio of 1:6.2) and stir for swelling treatment. The rotation speed is kept at 120r / min, and the stirring time is 240s;

[0039] 3) Add 0.46g of aniline and 1.8g of attapulgite to 50mL of sulfuric acid (0.95mol / L), stir for 11min, keep the rotation speed at 250r / min, then add the polystyrene balls obtained from step 2), keep the rotation speed and continue stirring for 35min ;

[0040] 4) Oxidation reaction: Add 1.20 g of oxidizing agent (potassium persulfate) to 50 mL of sulfuric acid (0.95 mol / L). After it is completely dissolved, keep stirring and use a dropping funnel to add the oxidizing agent dropwise to the system obtained in step 3). Mixe...

Embodiment 3

[0045] A kind of attapulgite / polyaniline / polystyrene composite particle, its preparation method comprises the steps:

[0046] 1) Weighing of raw materials: Weighing raw materials according to the ratio;

[0047] 2) Pour 1g of polystyrene microspheres into 60mL of swelling agent (mixed with chloroform and absolute ethanol at a volume ratio of 1:5.8) and stir for swelling treatment. The rotation speed is kept at 100r / min, and the stirring time is 240s;

[0048] 3) Add 0.48 g of aniline and 2.0 g of attapulgite to 50 mL of camphorsulfonic acid (1.05 mol / L), stir for 10 min, and keep the rotation speed at 200 r / min, then add the polystyrene balls obtained through step 2) and keep the rotation speed to continue Stir for 35 minutes;

[0049] 4) Oxidation reaction: Add 1.30 g of oxidizing agent (ammonium persulfate) to 50 mL of camphorsulfonic acid (1.05 mol / L). After completely dissolving, keep stirring conditions, and use a dropping funnel to drop Add the mixture of oxidizing agent...

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Abstract

The invention discloses an attapulgite clay / polyanion / polystyrene composite particle and a preparation method thereof. Polystyrene microspheres are used as a carrier, the polyanion modified by the attapulgite clay covers the surface of the polystyrene microsphere to obtain a core-shell structure of the polyanion-polystyrene microsphere, and then the composite particle integrating the conductivity and the heavy metal ion adsorbability is prepared. The prepared composite particle is high in heavy metal ion adsorbability, the application effect of the polystyrene microspheres in the field of water purification can be enhanced, and the water purification effect is remarkable; and meanwhile, the surface of the composite particle has conductivity, so that the problems of fire potential danger caused by the static electricity during the transportation and pre-processing process of the ordinary polystyrene microspheres can be solved, and the attapulgite clay / polyanion / polystyrene composite particle is safer when used as a building insulated material and a packing material.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to attapulgite / polyaniline / polystyrene composite particles and a preparation method thereof. Background technique [0002] At present, polystyrene microspheres are produced by domestic and foreign manufacturers, which can be used as building insulation materials, packaging materials and water purification and filtration materials, and are widely used. However, it is easy to generate static electricity during transportation and preprocessing, and excessive accumulation can easily cause fire, making it a potential safety hazard in use. Although many improvements have been made to polystyrene microspheres, most of them are to improve their flame retardant performance, which is not a cure for the symptoms. [0003] Heavy metal adsorption materials are a new class of rapidly developing materials. It can highly selectively adsorb heavy metal ions. It is mainly divided into...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/36C08J7/02C08L25/06C08G73/02C08K9/00C08K3/34B01J20/26B01J20/30C02F1/28C02F1/70C02F1/72C02F1/42
CPCB01J20/26C02F1/285C02F1/42C02F1/70C02F1/72C08G73/0266C08J7/02C08J9/365C08J2325/06C08J2479/02C08K3/346C08K9/00C08K2201/011
Inventor 翁睿杜守文刘诗晨徐可蔡棋
Owner WUHAN UNIV OF TECH
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