Stretchable multi-core conductive element and preparation method thereof, stretchable cable and stretchable capacitive sensor

Abstract

The invention provides a stretchable multi-core conductive element. The stretchable multi-core conductive element comprises an inner-layer stretchable wire and an outer-layer stretchable wire, the inner-layer stretchable wire is composed of more than one stretchable wire unit which is insulated from each other; each stretchable wire unit takes liquid metal as a central conductor, and the peripheryof each stretchable wire unit is coated with an elastic insulating layer; in addition, the stretchable wire units are arranged together in parallel or connected together in a sleeved mode in the length direction; the outer-layer stretchable wire is composed of an elastic conductive material and an elastic insulating material. The elastic conductive material wraps the periphery of the inner-layerstretchable wire to form a shielding layer, and the elastic insulating material wraps the periphery of the shielding layer to form a protective layer. The stretchable multi-core conductive element issimple in structure and easy to manufacture, has high conductivity and high stretchability, can be used as a stretchable cable and a stretchable capacitance sensor, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, in particular to a stretchable multi-core conductive element and a preparation method thereof, a stretchable cable and a stretchable capacitive sensor. Background technique [0002] With the development of the Internet of Things and wearable technology, flexible and stretchable devices are the mainstream trend in the development of electronic devices in the future. Among them, elastic wires and elastic sensors are the key units in the development of flexible elastic devices. They have received widespread attention in recent years, especially for coaxial cables for signal transmission and sensors for signal collection. They are essential for the miniaturization, portability and comfort of electronic products. Sex is very important. [0003] At present, coaxial cables are composed of a pair of conductors, which form a pair in the form of "coaxial". The central conductor layer of the ...

AI Technical Summary

Problems solved by technology

Although the current elastic capacitive sensor has a good response to stretching deformation, it also responds to bending deformation, so when the sensor is applied in an environment with both bending and stretching, the sensor cannot obtain accurate stretching changes , that is, the signal of the stretching deformation is disturbed by the bending deformation

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