Nano-silver/poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline binary composite material and preparation method thereof

A technology based on acrylamide and methyl propane sulfonic acid, which is applied in the direction of silver compounds, silver compounds, chemical instruments and methods, etc., can solve the problems of poor dispersion of nano-silver, limited application, easy agglomeration, etc., and achieve low cost, Good application prospect, not easy to reunite

Inactive Publication Date: 2014-04-09
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the silver/polyaniline nanocomposite material that these surfactants make, nano-silver dispersibility is bad, easy agglomeration, the electrochemical performan

Method used

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  • Nano-silver/poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline binary composite material and preparation method thereof
  • Nano-silver/poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline binary composite material and preparation method thereof
  • Nano-silver/poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline binary composite material and preparation method thereof

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[0028] The following specific examples are intended to further illustrate the present invention, rather than limit the protection scope of the present invention. Example 1

[0029] Take 5.0g of PAAMPS and add it to 95.0g of distilled water to configure a PAAMPS emulsion with a mass fraction of 5%. Dissolve 0.44g of sodium hypophosphite in 10mL of distilled water and add it to 100mL of a 5% PAAMPS emulsion with a mass fraction of 5%, followed by electric stirring for 15 Minutes later, the temperature of the reaction system was raised to 40°C, and 10 mL of silver nitrate solution containing 1.42 g was added dropwise at a rate of 15-20 drops / min, and the reaction time was 70 minutes; the nano-silver emulsion was obtained; , washed, dried, and the obtained nano-silver is detected, and the particle size distribution of nano-silver particles is as follows: figure 2 with image 3 The scanning electron microscope image is shown in Figure 4 shown.

[0030] Add 2.50g of aniline to...

Example Embodiment

[0032] Example 2

[0033] Take 15.0g of PAAMPS and add it into 85.0g of distilled water to configure a PAAMPS emulsion with a mass fraction of 15%. Dissolve 0.88g of sodium hypophosphite in 10mL of distilled water and add it to 100mL of a mass fraction of 15% PAAMPS emulsion, followed by electric stirring for 15 Minutes later, the temperature of the reaction system was raised to 40°C, and 10 mL of silver nitrate solution containing 2.84 g was added dropwise, the dropping rate was controlled at 15-20 drops / min, and the reaction time was 70 minutes; the silver nano-emulsion was obtained;

[0034] Add 2.50 g of aniline to the prepared nano-silver microemulsion, and ultrasonically disperse it for 10 minutes. Then, under electric stirring, add 30 mL of an aqueous solution containing 5.71 g of ammonium persulfate dropwise to the reaction system to initiate the polymerization of aniline at a rate of 15 to 20 drop / min, the reaction temperature is controlled at 0-5°C, and the reaction ti...

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Abstract

The invention discloses a nano-silver/poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline binary composite material and a preparation method thereof. The binary composite material is formed by inlaying nano-silver particles in meshes of a mesh-shaped polymer made of poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline. The preparation method of the binary composite material comprises the following steps: dispersing aniline in poly(2-acrylamido-2-methylpropanesulfonic acid) emulsion containing nano-silver particles, and compounding the generated poly(2-acrylamido-2-methylpropanesulfonic acid) doped polyaniline and the nano-silver particles through in-situ polymerization so as to obtain the binary composite material. The preparation method is simple, low in cost and high in yield; and the prepared composite material has high electrical conductivity, very strong corrosion resistance and wide application potentiality.

Description

technical field [0001] The invention relates to a nano-silver / poly(2-acrylamide-2-methylpropanesulfonic acid) doped polyaniline binary composite material and a preparation method thereof, belonging to the field of conductive polymer-based composite materials. Background technique [0002] Silver / polyaniline nanocomposite is an important conductive polymer-based composite material. Due to the simple synthesis of polyaniline, good environmental stability, unique doping and dedoping mechanism, and the high conductivity, high sensitivity, and bactericidal properties of nano-silver, silver / polyaniline nanocomposites are used in optoelectronics. Applications in materials, electrode materials, supercapacitor materials, biosensing, catalysis, sterilization, electromagnetic shielding and other fields have attracted more and more attention. [0003] Emulsion method is one of the most commonly used methods to prepare silver / polyaniline nanocomposites. Silver / polyaniline nanocomposite...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08K3/08C08L79/02C08L33/26C01G5/00
Inventor 李芝华李彦博
Owner CENT SOUTH UNIV
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