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Preparation method of high-performance flexible pedot:pss thermoelectric fibers

A high-performance and flexible technology, applied in the direction of conjugated synthetic polymer rayon, etc., can solve the problems of expensive equipment and complicated production process, and achieve the effect of simple preparation method, low cost and excellent thermoelectric performance.

Inactive Publication Date: 2020-11-27
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process required by the above-mentioned spinning method is relatively complicated, and the required equipment is relatively expensive.

Method used

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  • Preparation method of high-performance flexible pedot:pss thermoelectric fibers
  • Preparation method of high-performance flexible pedot:pss thermoelectric fibers
  • Preparation method of high-performance flexible pedot:pss thermoelectric fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing high-performance flexible PEDOT:PSS thermoelectric fibers, including:

[0030] Step 1: Add 25 μL of 2 mol / L sulfuric acid to 1 mL of PEDOT:PSS solution dispersion, and sonicate for 20 minutes;

[0031] Step 2: Inject the uniformly mixed solution into the capillary with a syringe, seal both ends of the capillary, and keep the temperature at 90°C for 3 hours;

[0032] Step 3: After constant temperature, blow the fiber thermoelectric material in the capillary into absolute ethanol, take out the fiber and put it in a vacuum oven at 60°C for 1 hour to obtain a high-performance flexible PEDOT:PSS thermoelectric fiber material.

[0033] like figure 1 As shown, the test temperature difference is 5K, and the thermoelectric properties of the PEDOT:PSS thermoelectric fiber material are measured, and the conductivity is 58.64S cm -1 , power factor is 1.798μW m -1 K -2 .

Embodiment 2

[0035] Step 1: Add 25 μL of 2 mol / L sulfuric acid to 1 mL of PEDOT:PSS solution dispersion, and sonicate for 20 minutes;

[0036] Step 2: Inject the uniformly mixed solution into the capillary with a syringe, seal both ends of the capillary, and keep the temperature at 90°C for 3 hours;

[0037] Step 3: After constant temperature, blow the fiber thermoelectric material in the capillary into isopropanol, take out the fiber and put it in a vacuum oven at 60°C to dry for 1 hour to obtain a high-performance flexible PEDOT:PSS thermoelectric fiber material.

[0038] like figure 1 As shown, the test temperature difference is 5K, and the thermoelectric properties of the PEDOT:PSS thermoelectric fiber material are measured, and the conductivity is 70.64S cm -1 , power factor is 1.359μW m -1 K -2 .

Embodiment 3

[0040] Step 1: Add 25 μL of 2 mol / L sulfuric acid to 1 mL of PEDOT:PSS solution dispersion, and sonicate for 20 minutes;

[0041] Step 2: Inject the uniformly mixed solution into the capillary with a syringe, seal both ends of the capillary, and keep the temperature at 90°C for 3 hours;

[0042] Step 3: After constant temperature, the fiber thermoelectric material in the capillary was blown into acetone, the fiber was taken out and placed in a vacuum oven at 60°C for 1 hour to obtain a high-performance flexible PEDOT:PSS thermoelectric fiber material.

[0043] like figure 1 As shown, the test temperature difference is 5K, and the thermoelectric properties of the PEDOT:PSS thermoelectric fiber material are measured, and the conductivity is 65.64S cm -1 , power factor is 1.129μW m -1 K -2 .

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Abstract

The invention discloses a preparation method of high performance flexible PEDOT: PSS thermoelectric fibers and belongs to the field of semiconductor thermoelectric materials. The preparation method ofthe high performance flexible PEDOT: PSS thermoelectric fibers comprises the following steps: S1, adding sulfuric acid into a PEDOT: PSS solution to be uniformly mixed; S2, injecting the solution obtained in the S1 into a capillary tube, sealing two ends of the capillary tube, and carrying out constant temperature treatment to obtain cured fibers; and S3, taking out the cured fibers in the capillary tube, soaking the cured fibers in the solution and drying the same to obtain the fibers. Compared with the prior art, the preparation method of the high performance flexible PEDOT: PSS thermoelectric fibers is simple and low in cost, the thermoelectric property of the PEDOT: PSS thermoelectric fibers is excellent, and the PEDOT: PSS thermoelectric fibers have a wider application prospect.

Description

technical field [0001] The invention relates to the field of semiconductor thermoelectric materials, in particular to a method for preparing a high-performance flexible PEDOT:PSS thermoelectric fiber. Background technique [0002] Thermoelectric material is a kind of functional material that utilizes the carrier movement inside solid to realize direct mutual conversion of thermal energy and electrical energy, and has broad application prospects in thermoelectric power generation and refrigeration. With the increasingly serious environmental problems and energy crisis, thermoelectric materials have become one of the hot spots of new energy materials. The use of thermoelectric power generation or refrigeration devices has the advantages of compact structure, high reliability, no pollution, long life, and no noise during operation. Its application range involves many fields such as civil, military, and aerospace. [0003] The performance of thermoelectric materials is mainly m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/16D01F8/10
CPCD01F8/10D01F8/16
Inventor 蒋丰兴刘京徐景坤周卫强罗婵刘鹏
Owner JIANGXI SCI & TECH NORMAL UNIV