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A preparation method of polypyrrole-based conductive high-sensitivity sensing elastic woven yarn

A technology of weaving yarn and polypyrrole, which is applied in the direction of yarn, textiles, papermaking, fiber processing, etc., can solve the problems of single sensor sensing element and difficult to use multiple times, and achieve good cycle stability, low production cost and high strength Effect

Active Publication Date: 2021-02-09
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sensing element of this sensor is relatively single, and it is not easy to use it multiple times.

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
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  • A preparation method of polypyrrole-based conductive high-sensitivity sensing elastic woven yarn
  • A preparation method of polypyrrole-based conductive high-sensitivity sensing elastic woven yarn
  • A preparation method of polypyrrole-based conductive high-sensitivity sensing elastic woven yarn

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 Shown, a kind of preparation method of conductive highly sensitive sensing elastic woven yarn based on polypyrrole, comprises the following steps:

[0030] Step S1, using ethanol to clean impurities on the surface of the polyester filament, immersing the polyester filament in a solution with a dopamine concentration of 4 g / L at pH = 8.5 and vibrating at a frequency of 60 r / min for 24 hours to obtain a dopamine-polyester filament;

[0031] Step S2. Using an elastic filament as the core yarn, wrapping 4 dopamine-polyester filaments on the core yarn by weaving on a circular loom to obtain a dopamine-polyester filament elastic braided yarn;

[0032] Step S3. Put the dopamine-polyester filament elastic braided yarn into the mixture of 0.6mol / L pyrrole monomer, 0.01mol / L sodium dialkylbenzenesulfonate and 0.01mol / L cetyltrimethylammonium bromide In the solution, react in a low temperature environment of 0-5 ° for 2 hours, put the reacted dopam...

Embodiment 2

[0035] Such as figure 1 and figure 2 Shown, a kind of preparation method of conductive highly sensitive sensing elastic woven yarn based on polypyrrole, comprises the following steps:

[0036] Step S1, using ethanol to clean impurities on the surface of the polyester filament, immersing the polyester filament in a solution with a dopamine concentration of 4 g / L at pH = 8.5 and vibrating at a frequency of 60 r / min for 24 hours to obtain a dopamine-polyester filament;

[0037] Step S2. Using an elastic filament as the core yarn, wrapping 8 dopamine-polyester filaments on the core yarn by weaving on a circular loom to obtain a dopamine-polyester filament elastic braided yarn;

[0038] Step S3. Put the dopamine-polyester filament elastic braided yarn into the mixture of 0.6mol / L pyrrole monomer, 0.01mol / L sodium dialkylbenzenesulfonate and 0.01mol / L cetyltrimethylammonium bromide In the solution, react in a low temperature environment of 0-5 ° for 2 hours, put the reacted dopam...

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Abstract

The present invention relates to a preparation method of polypyrrole-based conductive high-sensitivity sensing elastic braided yarn, comprising the following steps: 1. After washing the filaments, immersing the filaments in a dopamine solution for oscillation to obtain dopamine-filaments; 2. The elastic filament is used as the core yarn, and the dopamine-filament filament is wrapped on the outer surface of the core yarn by weaving to obtain the dopamine-filament elastic braided yarn; 3, the dopamine-filament elastic braided yarn and polypyrrole are passed through the Composite by polymerization method, washed and dried to obtain polypyrrole-dopamine-filament sensing elastic braided yarn. In the present invention, the long filament is first compounded with dopamine and then compounded with polypyrrole, which improves the bonding fastness of polypyrrole and elastic braided yarn; the braided yarn of the present invention has the characteristics of high sensitivity, high strength, and good cycle stability; the product of the present invention The production cost is low, the performance is stable, and it is conducive to popularization and use. It has broad application prospects in the fields of military industry and national defense, human motion monitoring and intelligent textiles.

Description

technical field [0001] The invention relates to the field of high-sensitivity conductive yarns, in particular to a preparation method of polypyrrole-based conductive high-sensitivity sensing elastic woven yarns. Background technique [0002] The traditional types of strain sensors are mainly resistance strain sensors, which cause a corresponding change in resistance value after mechanical deformation under the action of an external force. There are mainly two types of resistance strain gauges: metal (wire type, foil type and film type) and semiconductor. However, strain sensors based on semiconductor or metal materials have poor flexibility and limited detection sensitivity, which is difficult to meet the requirements of portable and wearable electronic devices. In recent years, researchers have devoted themselves to the development of wearable strain sensors, which have important applications in medical treatment, motion detection, and human-computer interaction because of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/37D06M13/368C08G73/06D02G3/04D02G3/32
CPCC08G73/0611D02G3/04D02G3/32D06M13/368D06M15/37D10B2321/10D10B2331/02D10B2331/04
Inventor 蔡光明潘俊杰张如全程德山罗磊徐安长
Owner WUHAN TEXTILE UNIV