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A kind of highly conductive elastomer and its preparation method and flexible and stretchable antenna

An elastomer, highly conductive technology, applied in cable/conductor manufacturing, conductors, insulated conductors, etc., can solve the problems of liquid metal antennas that have not yet matured products, liquid metal leakage, etc., to achieve excellent electrical conductivity and high stretchability. The effect of coefficients

Active Publication Date: 2019-05-28
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the resonant frequency of the liquid metal antenna changes dynamically during stretching, this characteristic determines that there are no mature products for the liquid metal antenna in practical applications.
At the same time, they all have the risk of liquid metal leakage, which is also a big challenge in the process of commercialization

Method used

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  • A kind of highly conductive elastomer and its preparation method and flexible and stretchable antenna
  • A kind of highly conductive elastomer and its preparation method and flexible and stretchable antenna
  • A kind of highly conductive elastomer and its preparation method and flexible and stretchable antenna

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Embodiment Construction

[0036] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0037] Such as figure 1 As shown, a flexible and stretchable antenna includes a highly conductive elastomer 21, a coaxial cable, and an SMA connector 1. There are two highly conductive elastomers 21, and one end is connected to the SMA connector 1. The conductive layer 213 at the other end of the high conductive elastic body 21 feeds power with the coaxial cable. The antenna is made of two sections of straight wires made of the same thickness and equal length high conductive elastic body 21 arranged in a straight line, and feeds power through the conductive layer 213 in the elastic body and the coaxial cable to realize the connection between the antenna and the transceiver. En...

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Abstract

The invention provides a high-conductivity elastomer, a preparation method thereof and a flexible stretchable antenna. Ultra-soft rubber is utilized as a basic structure unit. A rubber layer is firstly applied on pre-stretched rubber. Carbon nanotubes which are plated by thin-layer metal in different layers are utilized as a conductive layer. Then a rubber layer is sprayed on the conductive layer. Finally the pre-stretched rubber restores to an original length for forming the high-conductivity elastomer with a wrinkle structure. Furthermore the high-conductivity elastomer is utilized for preparing the flexible stretchable antenna. The high-conductivity elastomer has high stretching coefficient, high stretching fracture rate and excellent conductivity, wherein the stretching fracture rate reaches 800%. Furthermore, because of existence of the wrinkle structure, when the high-conductivity elastomer is stretched, and the total length of the conductive layer is substantially unchanged, so that when the elastomer is stretched by six times, high conductivity is maintained and resistance is basically unchanged, and furthermore performance is substantially unchanged after repeated stretching by 10000 times.

Description

technical field [0001] The invention relates to the technical field of stretchable wires, in particular to a highly conductive elastomer, a preparation method and a flexible stretchable antenna thereof, which have high conductivity and stable conductivity under large deformation, and can be used to make flexible stretchable wires extended antenna. Background technique [0002] Flexible electronics, which has just emerged in recent years, has attracted more and more people's attention. Because flexible wires can be used in stretchable antennas, artificial medical devices, smart clothing and bionic materials, traditional rigid wires cannot meet this requirement. For example, wearable flexible antennas have the advantages of softness, flexibility, and twistability, and have been widely used in the field of wearable communications. Conventional flexible antennas are only bendable but not stretchable, so there are many limitations in their applications. Therefore, research and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/10H01B7/04H01B7/18H01B13/00
CPCH01B7/04H01B7/18H01B13/00H01Q1/10
Inventor 刘遵峰刘中胜
Owner CHANGZHOU UNIV
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