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A kind of preparation method of composite thermoelectric thin film

A thermoelectric thin film and thin film technology, applied in the field of energy capture, can solve the problems of difficult preparation of thermoelectric materials, complicated methods, residual impurities, etc., and achieve the effect of significant technical effect

Active Publication Date: 2021-03-02
TAICANG BIQI NEW MATERIAL RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Beijing University of Chemical Technology announced a preparation method of polyaniline carbon tube flexible composite thermoelectric thin film material (application publication number: CN109251337A), which solves the difficulties in the preparation of existing thermoelectric materials, complex methods, unstable structures, residual impurities, and poor thermoelectric performance. The ideal technical problem includes the following steps: (1) Weigh the aniline monomer and the oxidant ammonium persulfate and disperse them in hydrochloric acid respectively, gradually add the hydrochloric acid solution of ammonium persulfate into the hydrochloric acid of the aniline monomer, stir and polymerize in an ice bath Prepare polyaniline; (2) dope with ammonia water, wash with water and ethanol until neutral, and dry to obtain intrinsic polyaniline; (3) disperse polyaniline and carbon tubes in a solvent, ultrasonically and stir to prepare polyaniline Obtain the carbon tube-polyaniline dispersion solution; (4) the dispersion solution is vacuum decompressed and suction-filtered and dried on the nanofiber filter screen membrane, and treated with temperature and pressure to obtain the polyaniline-carbon tube flexible composite film material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Divide the area to 10 x 5cm 2 The 70 grams of polyester nonwovens are arranged in a vacuum coating machine, in 2×10 -3 Vacuum deposit a 60nm thick silver film under Pa vacuum to obtain a silver-plated cloth;

[0059] Arrange the silver plating in a hot embossing machine, heat it to 150°C, and successively hot emboss 1 μm thick 1,3-dibenzyl-4,5-cis-bis(p-toluenesulfonyloxymethyl) on the silver film )-2-imidazolinone film, 2 μm thick 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one film to obtain a composite silver-plated cloth;

[0060] Arrange the composite silver plating in the vacuum coating machine, at 2×10 -3 Under the vacuum degree of Pa, a 5nm thick aluminum film was vacuum-deposited on the 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one film to obtain an aluminum composite coating silver cloth;

[0061] Arrange aluminum composite silver plating in a hot embossing machine, heat to 150°C, and hot emboss a 1 μm thick bis(4-diphenylmethylpipe...

Embodiment 2

[0067] Divide the area to 10 x 5cm 2 The 70 grams of polyester nonwovens are arranged in a vacuum coating machine, in 2×10 -3 Vacuum deposit a 70nm thick silver film under Pa vacuum to obtain a silver-plated cloth;

[0068] Arrange the silver plating in a hot embossing machine, heat it to 200°C, and successively hot emboss 1.5 μm thick 1,3-dibenzyl-4,5-cis-bis(p-toluenesulfonyloxymethanol) on the silver film base)-2-imidazolidinone film, 3μm thick 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one film, and a composite silver-plated cloth ;

[0069] Arrange the composite silver plating in the vacuum coating machine, at 2×10 -3 Under the vacuum degree of Pa, vacuum-deposit a 10nm thick aluminum film on the 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one film to obtain an aluminum composite coating silver cloth;

[0070] Arrange aluminum composite silver plating in a hot embossing machine, heat to 200 °C, and hot emboss a 1.5 μm thick bis(4-diphenylmethyl...

Embodiment 3

[0076] Divide the area to 10 x 5cm 2 The 70 grams of polyester nonwovens are arranged in a vacuum coating machine, in 2×10 -3 Vacuum-deposit a 65nm thick silver film under Pa vacuum to obtain a silver-plated cloth;

[0077] Arrange the silver plating in a hot embossing machine, heat it to 180 ° C, and successively hot emboss 1.3 μm thick 1,3-dibenzyl-4,5-cis-bis(p-toluenesulfonyloxymethanol) on the silver film base)-2-imidazolidinone thin film, 2.5μm thick 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one thin film, and composite silver plating cloth;

[0078] Arrange the composite silver plating in the vacuum coating machine, at 2×10 -3 Under the vacuum degree of Pa, an aluminum film with a thickness of 8nm is vacuum-deposited on the 1,3-dibenzyl-tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one film to obtain an aluminum composite coating silver cloth;

[0079] Arrange the aluminum composite silver plating in a hot embossing machine, heat it to 180 °C, and hot emboss...

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Abstract

The invention belongs to the technical field of energy harvesting, in particular to a preparation method of a composite thermoelectric thin film. The method proposed by the present invention is to successively vacuum-plate silver on polyester non-woven fabrics, and heat emboss 1,3-dibenzyl-4,5-cis-bis(p-toluenesulfonyloxymethyl)-2-imidazolidinone , 1,3‑dibenzyl‑tetrahydro‑1H‑thieno[3,4‑d]imidazol‑2(3H)‑one, vacuum aluminized, hot embossed bis(4‑diphenylmethylpiperazine ‑1‑base) methane, screen printing conductive silver glue and polymethyl methacrylate, a multi-layer sandwich structure film; and then annealing the multi-layer sandwich structure film in a hot embossing machine to obtain a composite thermoelectric film. The power factor of the composite thermoelectric thin film measured by a pyroelectric coefficient measuring instrument is 4.8~5.5 mW.m ‑1 .K ‑2 , the thermoelectric figure of merit is 3.6~4.1.

Description

technical field [0001] The invention belongs to the technical field of energy harvesting, in particular to a preparation method of a composite thermoelectric thin film. Background technique [0002] Thermoelectric collection is the conversion of thermal energy into electrical energy, using a physical principle called the Seebeck effect. A Peltier element plus a pair of specific semiconductors generates an electric current whenever there is a temperature difference. For wearable devices, the human body, which is constantly emitting heat, can be used as the hot end, while the environment becomes the cold end. How much energy is produced depends on the difference between the high and low temperatures. Peltier elements can harvest a lot of energy, making them potentially useful for devices that sit next to the skin and have high energy demands. One of the great advantages of thermoelectric recovery is that there is a constant source of energy, whether it is indoors or outdoor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/10B32B37/06B32B38/14B41M1/12B41M1/26B41M1/30D06M11/83D06M101/32
CPCB32B37/06B32B37/10B32B38/145B41M1/12B41M1/26B41M1/30D06M11/83D06M2101/32Y02P70/10
Inventor 蓝碧健
Owner TAICANG BIQI NEW MATERIAL RES & DEV
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