Polyaryletherketone/polyaniline-carbon nanotube composite material with high dielectric property and preparation method thereof

A technology of carbon nanotubes and polyaryletherketone, which is applied in the field of polymer-based nanocomposites and its preparation, can solve the problems of dielectric materials without embedded capacitors

Inactive Publication Date: 2012-02-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, an ideal dielectric material for embedded capacitors has not been obtained so far

Method used

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  • Polyaryletherketone/polyaniline-carbon nanotube composite material with high dielectric property and preparation method thereof
  • Polyaryletherketone/polyaniline-carbon nanotube composite material with high dielectric property and preparation method thereof
  • Polyaryletherketone/polyaniline-carbon nanotube composite material with high dielectric property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 0.1 gram of polyaniline-carbon nanotubes (aniline: carbon nanotubes = 8: 2, see figure 2 ) in 2ml NMP for 2 hours to make it evenly dispersed; at the same time, dissolve 0.9 g of sulfonated polyetheretherketone (x / y=20 / 80) in 5ml of NMP; then mix the two solutions together and continue to sonicate for 1 hour Finally, it is casted on a smooth glass plate, dried at 80°C, and then vacuum-dried at 120°C for 24 hours to obtain a high dielectric constant polyaryletherketone / carbon nanotube composite material.

[0022] The dielectric properties of the material were measured, the dielectric constant ε=15, and the dielectric loss 0.11 (test temperature 25° C., test frequency 1000 Hz).

Embodiment 2

[0024] With 0.2 gram of polyaniline-carbon nanotubes (aniline: carbon nanotubes = 8: 2, see figure 2 ) in 4ml NMP for 2 hours to make it evenly dispersed; at the same time, dissolve 0.8 g of sulfonated polyetheretherketone (x / y=20 / 80) in 4ml of NMP; then mix the two solutions together and continue to sonicate for 1 hour Finally, it is cast on a smooth glass plate, dried at 80°C, and then vacuum-dried at 120°C for 24 hours to obtain a high dielectric constant polyaryletherketone / carbon nanotube composite material.

[0025] The dielectric properties of the material were measured, the dielectric constant ε=159, and the dielectric loss 0.34 (test temperature 25° C., test frequency 1000 Hz).

Embodiment 3

[0027] With 0.3 gram of polyaniline-carbon nanotubes (aniline: carbon nanotubes = 8: 2, see figure 2 ) in 4ml NMP for 2 hours to make it uniformly dispersed; at the same time, dissolve 0.7 g of sulfonated polyetheretherketone (x / y=20 / 80) in 5ml of NMP; then mix the two solutions together and continue to sonicate for 1 hour Finally, it is cast onto a smooth glass plate, dried at 70°C, and then vacuum-dried at 130°C for 16 hours.

[0028] The morphology of the prepared high dielectric constant polyaryletherketone / carbon nanotube composites is shown in image 3 , to measure the dielectric properties of the material, the dielectric constant ε=1002, and the dielectric loss 3.19 (test temperature 25° C., test frequency 1000 Hz).

[0029]Select the reported sulfonated polyether ether ketone / carbon nanotube (mass ratio 94 / 6) composite material to compare with the material of this example. The carbon nanotube content of this composite material is also 6%. Since there is no polyanilin...

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Abstract

The invention relates to a polyaryletherketone / polyaniline-carbon nanotube composite material with a high dielectric property and a preparation method thereof, and belongs to the technical field of a polymer base nano composite material and a preparation method thereof. The composite material comprises the following components in percentage by weight: 10-50% of carbon nanotubes wrapped by polyaniline and the balance of sulfonated polyetheretherketone. In the preparation method, the polyaniline-carbon nanotubes are used as a modified filling material, the sulfonated polyetheretherketone is used as a matrix material, N-methyl pyrrolidone is used as a solvent, and the materials are blended uniformly into a solution which is then cast into a mold. In the invention, because the organic wrapping layer of the filling material not only can make particles dispersed uniformly, but also can reduce the possibility of the generation of seepage current, dielectric constants are ensured, and simultaneously the dielectric loss is reduced. The obtained high dielectric composite material with good processability and good dielectric property can be applied in embedded capacitors.

Description

technical field [0001] The invention belongs to the technical field of polymer-based nanocomposite materials and their preparation, and in particular relates to a polyaryletherketone / polyaniline-carbon nanotube composite material with high dielectric properties and a preparation method thereof. Background technique [0002] The most important property of a dielectric material is that it can be polarized under an external electric field, and the dielectric constant (ε) is an important index to characterize the performance of a dielectric material. With the rapid development of the electronics industry, high dielectric constant materials with excellent carrier blocking, energy storage and uniform electric field are widely used in dynamic random access memory, various sensors, capacitors, photoelectric / electro-optic Devices and microwaves, especially in the fields of electronic and electrical power capacitors, integrated chip capacitors, and motor cables, have extremely importa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/10C08L61/16C08K9/10C08K7/00C08K3/04C08J5/18B29C39/00H01G4/14
Inventor 张云鹤王琦桐王贵宾刘晓姜振华
Owner JILIN UNIV
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