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Material for flexible sensor

A technology of flexible sensors and raw materials, applied in textiles, papermaking, fiber processing, etc., can solve the problems of poor conductivity stability of conductive fabrics, and achieve the effects of excellent conductivity stability and shortened polymerization time.

Pending Publication Date: 2021-02-19
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a polythiophene conductive fabric for flexible sensors and a preparation method, which solves the technical problem of poor stability in the conductive properties of conductive fabrics used for making flexible sensors

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The polythiophene conductive fabric includes the following raw materials in parts by weight: 1 part of weft knitted fabric, 1.25 parts of p-toluenesulfonic acid, 1 part of camphorsulfonic acid, 8 parts of ammonium persulfate, and 10 parts of thiophene;

[0031] The preparation method of above-mentioned polythiophene conductive fabric comprises the following steps:

[0032] S1. Add 5 parts by mass of sodium hydroxide and 1 part by mass of acetone to 24 parts by mass of deionized water, stir and mix, and prepare a pretreatment solution;

[0033] S2. Add 1 mass part of weft plain knitted fabric to the pretreatment solution in step S1, soak at a constant temperature of 40°C for 1h, then take out the fabric, and wash it repeatedly with deionized water until the pH value is neutral. Dry naturally under the sun to prepare the pretreated fabric;

[0034] S3. Add 1.25 parts by mass of p-toluenesulfonic acid and 1 part by mass of camphorsulfonic acid to 5 parts by mass of deioni...

Embodiment 2

[0040] The polythiophene conductive fabric includes the following raw materials in parts by weight: 3 parts of weft plain knitted fabric, 1.38 parts of p-toluenesulfonic acid, 1.6 parts of camphorsulfonic acid, 12 parts of ammonium persulfate, and 10 parts of thiophene;

[0041] The preparation method of above-mentioned polythiophene conductive fabric comprises the following steps:

[0042] S1. Add 8 mass parts of sodium hydroxide and 3 mass parts of acetone to 30 mass parts of deionized water, stir and mix, and prepare a pretreatment solution;

[0043] S2. Add 3 parts by mass of weft plain knitted fabric to the pretreatment solution in step S1, soak at a constant temperature of 60°C for 2 hours, then take out the fabric and wash it repeatedly with deionized water until the pH value is neutral. Dry naturally under the sun to prepare the pretreated fabric;

[0044] S3. Add 1.38 parts by mass of p-toluenesulfonic acid and 1.6 parts by mass of camphorsulfonic acid to 10 parts by...

Embodiment 3

[0050] The polythiophene conductive fabric includes the following raw materials in parts by weight: 2 parts of plain knitted fabric, 1.3 parts of p-toluenesulfonic acid, 1.2 parts of camphorsulfonic acid, 10 parts of ammonium persulfate, and 10 parts of thiophene;

[0051] The preparation method of above-mentioned polythiophene conductive fabric comprises the following steps:

[0052] S1. Add 6 parts by mass of sodium hydroxide and 2 parts by mass of acetone to 25 parts by mass of deionized water, stir and mix, and prepare a pretreatment solution;

[0053] S2. Add 2 parts by mass of weft plain knitted fabric to the pretreatment solution in step S1, soak at a constant temperature of 50°C for 1.5h, then take out the fabric and wash it repeatedly with deionized water until the pH value is neutral. Dry naturally at room temperature to prepare pretreated fabrics;

[0054] S3. Add 1.3 parts by mass of p-toluenesulfonic acid and 1.2 parts by mass of camphorsulfonic acid to 8 parts b...

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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Abstract

The invention relates to the technical field of conductive fabrics, and discloses polythiophene conductive fabric for a flexible sensor. The fabric comprises the following raw materials in parts by weight: 1-3 parts of weft plain knitted fabric, 1.25-1.38 parts of p-toluenesulfonic acid, 1-1.6 parts of camphorsulfonic acid, 8-12 parts of ammonium persulfate and 10 parts of thiophene. The inventionfurther discloses a preparation method of the polythiophene conductive fabric for the flexible sensor. The preparation method takes the weft plain knitted fabric and polythiophene as raw materials, the p-toluenesulfonic acid and the camphorsulfonic acid as dopants, and the ammonium persulfate as an oxidant, a polythiophene vapor deposition method is adopted, and the polythiophene conductive fabric for the flexible sensor is prepared in a low-temperature vacuum environment. According to the preparation method, the technical problem of poor stability of the conductive performance of conductivefabric for manufacturing a flexible sensor is solved.

Description

technical field [0001] The invention relates to the technical field of conductive fabrics, in particular to a polythiophene conductive fabric used for flexible sensors and a preparation method thereof. Background technique [0002] At present, conductive textiles are used as sensor materials for tension sensors, pressure sensors, sensors for detecting gases and special substances, and their applications in smart clothing, industrial industries and other fields have achieved certain results. The emergence of intelligent flexible sensors has made the textile and garment industry further integrated into the pace of intelligent informatization, which not only improves the added value of textiles, but also makes textiles not only widely used in the clothing industry, but also widely used in medical care and industry. to the industry. [0003] Intelligent flexible sensing materials can be fully integrated with clothing, and have excellent characteristics such as small size, washa...

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
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Application Information

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IPC IPC(8): D06M15/37D06M13/256
CPCD06M13/256D06M15/37
Inventor 闫兴武李颖李璐石一非柏栋予
Owner CHONGQING UNIV OF ARTS & SCI
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