Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid)/carbon foam composite material

A technology of ethylenedioxythiophene and styrene sulfonic acid, which is applied in the field of composite material preparation and can solve problems such as difficult realization of metamaterial properties

Active Publication Date: 2021-09-03
TONGJI UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to achieve metamaterial performance in pure carbon foams with positive permittivity and positive magnetic permeability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid)/carbon foam composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment is a preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam composite material with metamaterial properties, which is carried out according to the following steps:

[0023] (1) Preparation of carbon foam (CF): The clean melamine foam was calcined in a resistance furnace: kept at a constant temperature of 950° C. for 2.5 hours and then gradually cooled to room temperature. The whole process was carried out under nitrogen protection. After the foam is cooled to room temperature, take it out and soak it in 10% dimethyl sulfoxide for 30 minutes, then wash it repeatedly with deionized water until neutral, and dry it in a vacuum oven at 50°C for 12 hours;

[0024] (2) Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam (PEDOT-PSS / CF): take out the dried CF and soak it in the PEDOT-PSS solution for 8 hours , take it out and wash it with deionized water. Pre-freeze in a low-temperature refrigerator at ...

Embodiment 2

[0028] This embodiment is a preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam composite material with metamaterial properties, which is carried out according to the following steps:

[0029] (1) Preparation of carbon foam (CF): Calcining the clean melamine foam in a resistance furnace: keep the temperature at 1000° C. for 2.5 hours and then gradually cool to room temperature. The whole process was carried out under nitrogen protection. After the foam is cooled to room temperature, take it out and soak it in 12% dimethyl sulfoxide for 30 minutes, then wash it repeatedly with deionized water until neutral, and dry it in a vacuum oven at 50°C for 12 hours;

[0030] (2) Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam (PEDOT-PSS / CF): take out the dried CF and soak it in the PEDOT-PSS solution for 8 hours , take it out and wash it with deionized water. Pre-freeze in a low-temperature refrigerator at -80°C for 2 ho...

Embodiment 3

[0034] This embodiment is a preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam composite material with metamaterial properties, which is carried out according to the following steps:

[0035](1) Preparation of carbon foam (CF): The clean melamine foam was calcined in a resistance furnace: kept at a constant temperature of 950° C. for 2.5 hours and then gradually cooled to room temperature. The whole process is carried out under the protection of helium. After the foam is cooled to room temperature, take it out and soak it in 10% dimethyl sulfoxide for 30 minutes, then wash it repeatedly with deionized water until neutral, and dry it in a vacuum oven at 50°C for 12 hours;

[0036] (2) Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam (PEDOT-PSS / CF): Take out the dried CF and soak it in the PEDOT-PSS solution for 5 hours , take it out and wash it with deionized water. Pre-freeze in a low-temperature refrigerator ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to the preparation method of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) / carbon foam composite material, the melamine foam is cooled to room temperature after being calcined, placed in dimethyl sulfide Soak in sulfone solution, then dry to obtain carbon foam, soak in poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) solution, take it out, pre-freeze and then vacuum freeze-dry to get Poly(3,4‑ethylenedioxythiophene)‑poly(styrenesulfonic acid) / carbon foam composites. Compared with the prior art, the present invention not only has double negative (negative permittivity and negative magnetic permeability) metamaterial properties, but also can deform the prepared sample by applying an external force to its double negative degree. And the regulation of the corresponding frequency range will help to expand the application of metamaterials in smart switches, adjustable antenna windows and other fields.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a preparation method of a poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) / carbon foam composite material with supermaterial properties . Background technique [0002] Since Zhong et al. achieved negative dielectric constant by preparing carbon nanofiber (CNF) / polyetherimide (PEI) composites in 2009, people have been working in the field of polymers by adjusting components and constructing various Microstructure to achieve metamaterial properties with negative permittivity and negative magnetic permeability. But few people have been able to adjust the properties of their metamaterials under the samples that have been made. As a typical conductive polymer with a three-dimensional network structure, carbon foam has broad application prospects and important application value in the fields of capacitors and electromagnetic wave absorption. However, it is d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L65/00C08L25/18C08K7/24
CPCC08L25/18C08L65/00C08K7/24
Inventor 邱军施煜楠
Owner TONGJI UNIV