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Preparation method of copper-loaded nanoscale conductive polystyrene

A technology of polystyrene and sulfonated polystyrene, which is applied in the nanometer field, can solve the problems of inconsistent conductivity of conductive materials, high cost and large-scale application, and high price of carbon black, etc., and achieves light polymer weight, environmental friendliness and designability strong effect

Inactive Publication Date: 2013-05-08
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. If the conductive filler is mixed unevenly during product processing, the conductivity of the conductive material may be inconsistent everywhere;
[0007] 2. The conductive filler prepared by this method may fall off during use, resulting in environmental pollution
[0008] At present, polystyrene conductive composite materials are mostly filled with carbon, but carbon black with large specific surface area and good dispersion is relatively expensive, and its conductivity is not as high as that of metal fillers.
Another conductive polymer widely used in the market is silver-loaded material, and its high cost has become the main disadvantage restricting its large-scale application.

Method used

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  • Preparation method of copper-loaded nanoscale conductive polystyrene
  • Preparation method of copper-loaded nanoscale conductive polystyrene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of polystyrene:

[0038] Put 15.0g of styrene, 3.0g of PVP, 0.2g of azobisisobutyronitrile, and 250mL of ethanol solution with a mass concentration of 90% into a container with a stirring device and a condensing device, and blow nitrogen at room temperature After 2 hours, drive out the oxygen dissolved in water, heat to 80°C, stir and react for 25 hours, wash the generated product with ethanol, and dry for 10 hours to obtain polystyrene;

[0039] (2) Preparation of sulfonated polystyrene microsphere sol:

[0040] Take 3g of polystyrene powder prepared in (1), add it to 30ml of concentrated sulfuric acid with a mass concentration of 99%, stir and heat to 40°C, react for 3 hours, and wash the sulfonated polystyrene with ethanol 5 times after centrifugal filtration. Put into ultrapure water again and be sol-like, obtain the sulfonated polystyrene microsphere sol that mass concentration is 5%;

[0041] (3) Preparation of nanoscale conductive polystyrene lo...

Embodiment 2

[0046] (1) Preparation of polystyrene:

[0047] Add 9.0g of styrene, 0.9g of PVP, 0.1g of azobisisobutyronitrile, and 100mL of ethanol solution with a mass concentration of 98% into a container with a stirring device and a condensing device, and pass it through at room temperature Nitrogen for 3 hours, after driving out the oxygen dissolved in water, heat to 50°C, stir and react for 30 hours, wash the generated product with ethanol, and dry for 15 hours to obtain polystyrene;

[0048] (2) Preparation of sulfonated polystyrene microsphere sol:

[0049] Take 3g of polystyrene powder prepared in (1), add it to 30ml of concentrated sulfuric acid with a mass concentration of 95%, stir and heat to 30°C, and react for 5 hours. The sulfonated polystyrene is washed twice with ethanol after centrifugal filtration. Put into distilled water again and be sol-like, obtain the sulfonated polystyrene microsphere sol that mass concentration is 8%;

[0050] (3) Preparation of nanoscale conduc...

Embodiment 3

[0055] (1) Preparation of polystyrene:

[0056] Add 22.0g of styrene, 2.3g of PVP, 0.47g of azobisisobutyronitrile, and 200mL of ethanol solution with a mass concentration of 95% into a container with a stirring device and a condensing device, and blow nitrogen gas at room temperature After 10 hours, drive out the oxygen dissolved in water, heat to 80°C, stir and react for 15 hours, wash the resulting product with ethanol, and dry it for 16 hours to obtain polystyrene;

[0057] (2) Preparation of sulfonated polystyrene microsphere sol:

[0058] Take 3g of polystyrene powder prepared in (1), add it to 30ml of concentrated sulfuric acid with a mass concentration of 90%, stir and heat to 50°C, react for 2 hours, and wash the sulfonated polystyrene with ethanol 6 times after centrifugal filtration. Put into deionized water again and be sol-like, obtain the sulfonated polystyrene microsphere sol that mass concentration is 7%;

[0059] (3) Preparation of nanoscale conductive polys...

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Abstract

The invention provides a preparation method of copper-loaded nanoscale conductive polystyrene. The preparation method comprises the following steps of: firstly preparing polystyrene and sulfonated polystyrene microsphere sols, and finally preparing the copper-loaded nanoscale conductive polystyrene. The copper-loaded nanoscale conductive polystyrene prepared by the method is regularly spherical and has monodispersed performance, so that the grain size of microspheres of a polymer changes in a range from nanometers to micrometers, thus the microspheres with different grain sizes can be prepared so as to meet different requirements; and the copper-loaded nanoscale conductive polystyrene has the characteristics of low cost, high conductive performance, consistent conductivity, strong designability and the like.

Description

[0001] technical field [0002] The invention belongs to the field of nanotechnology, and in particular relates to a method for loading nanometer copper ions on the surface of nanoscale polystyrene microspheres. [0003] Background technique [0004] Polystyrene (referred to as PS) refers to a polymer synthesized by free radical addition polymerization of styrene monomer. PS is a general-purpose plastic with high volume resistance and is a good electrical insulating material. However, its plastic products will generate static electricity during production, transportation, and use, which may cause the danger of combustion and explosion due to static electricity in the plastic. Therefore, it is of great practical significance to reduce the resistivity of PS to reduce the occurrence of disasters. [0005] In the prior art, conductive fillers such as metals, inorganic semiconductors, carbon black, graphite, carbon fibers, etc. are often added to the polymer matrix to form a mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/00C08L25/06C08K3/08C08F112/08C08F8/36
Inventor 杨桂生计娉婷
Owner HEFEI GENIUS NEW MATERIALS
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