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A kind of preparation method of conductive fiber with stretchable and low resistance change

A conductive fiber and low-resistance technology, which is applied in the manufacture of conductive/antistatic filaments, the manufacture of extensible conductors/cables, and the chemical characteristics of fibers, can solve the problems of increased resistance and the influence of electrode collection signals, etc. properties, the preparation method is simple, and the effect of maintaining stability in use

Active Publication Date: 2019-04-12
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, microcracks in the metal film during stretching will cause a substantial increase in resistance, which will affect the signal collected by the electrode.

Method used

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  • A kind of preparation method of conductive fiber with stretchable and low resistance change
  • A kind of preparation method of conductive fiber with stretchable and low resistance change
  • A kind of preparation method of conductive fiber with stretchable and low resistance change

Examples

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Effect test

Embodiment 1

[0044] A kind of preparation method of the conductive fiber of stretchable, low resistance change comprises the following steps:

[0045] α1. Preparation of PDMS film: First, mix the PDMS monomer and cross-linking agent in a mass ratio of 10:1, stir for 5 minutes, place the evenly mixed PDMS in a vacuum desiccator to remove air bubbles, and then place it in a petri dish with a diameter of 18cm Pour an appropriate amount of deionized water into the water, drop a few drops of PDMS except for air bubbles on the surface of the deionized water, and finally place the petri dish in a 60°C oven. After 2 hours, the PDMS film can be peeled off from the water surface, and the PDMS can be added dropwise by adjusting Films of different thicknesses can be prepared. By dropping 25 μL of PDMS, the thickness of the prepared film was about 10 μm.

[0046] α2. Preparation of conductive layer: After peeling off the PDMS film from the water surface, place it in an oven at 60°C for 30 minutes to r...

Embodiment 2

[0049] A kind of preparation method of the conductive fiber of stretchable, low resistance change comprises the following steps:

[0050] β1. Preparation of PDMS film: first mix PDMS monomer and cross-linking agent in a mass ratio of 10:1, stir for 5 minutes, place the evenly mixed PDMS in a vacuum desiccator to remove air bubbles, and then place it in a petri dish with a diameter of 18cm Pour an appropriate amount of deionized water into the water, drop a few drops of PDMS except for air bubbles on the surface of the deionized water, and finally place the petri dish in a 60°C oven. After 2 hours, the PDMS film can be peeled off from the water surface, and the PDMS can be added dropwise by adjusting Films of different thicknesses can be obtained. By dropwise adding 32.5 μL of PDMS, the film thickness was about 13 μm.

[0051] β2. Preparation of conductive layer: After peeling off the PDMS film from the water surface, place it in an oven at 60°C for 30 minutes to remove the de...

Embodiment 3

[0054] A kind of preparation method of the conductive fiber of stretchable, low resistance change comprises the following steps:

[0055] γ1. Preparation of PDMS film: First, mix the PDMS monomer and cross-linking agent in a mass ratio of 10:1, stir for 5 minutes, place the evenly mixed PDMS in a vacuum desiccator to remove air bubbles, and then place it in a petri dish with a diameter of 18 cm. Pour an appropriate amount of deionized water into the water, drop a few drops of PDMS except for air bubbles on the surface of the deionized water, and finally place the petri dish in a 60°C oven. After 2 hours, the PDMS film can be peeled off from the water surface, and the PDMS can be added dropwise by adjusting Films of different thicknesses can be obtained. By dropwise adding 37.5 μL of PDMS, a film thickness of approximately 15 μm was prepared.

[0056] γ2. Preparation of conductive layer: After peeling off the PDMS film from the water surface, place it in an oven at 60°C for 30...

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Abstract

The invention discloses a preparation method of a stretchable conductive fiber with low resistance change. According to the method, polydimethylsiloxane is added dropwise to the surface of the water,heat treatment is performed, and a polydimethylsiloxane film is stripped off from the surface of the water to prepare the polydimethylsiloxane film; a metal evaporator is utilized, and a metal film isvapor-deposited on the polydimethylsiloxane film and is taken as a conductive layer; the polydimethylsiloxane film loaded with the metal film is laid on a substrate and curled to prepare the conductive fiber. The method is advantaged in that the conductive fiber is stretchable and has low resistance change, the preparation method is simple, the preparation condition is mild, and the method has far-reaching significance for further development and promotion of flexible electrodes and flexible electronics.

Description

technical field [0001] The invention relates to the fields of flexible electronics and sensing, in particular to the field of preparation of stretchable electrodes and conductors, and in particular to a preparation method of a stretchable conductive fiber with low resistance change. Background technique [0002] Stretchable devices have attracted a lot of attention in recent years. Stretchable devices are a further development trend of flexible devices and have a large market. Stretchable devices have developed rapidly in the fields of human-computer interaction-oriented wearable devices, intelligent health monitoring, flexible robots, and energy storage. These devices have changed people's cognition and behavior in the medical and health fields, and at the same time promoted the development of bionic robots, and opened up the market for flexible energy storage devices. [0003] At present, a large number of flexible sensors have emerged in the field of flexible electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/008D01F6/94D01F1/09C23C14/20C23C14/24
CPCC23C14/20C23C14/24D01F1/09D01F6/94H01B13/008
Inventor 张伟娜霍峰蔚张波王彧肖更午李盛张所瀛
Owner NANJING TECH UNIV
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