High-performance polyaniline base organic thermoelectric material and preparation method thereof

A polyaniline-based, thermoelectric material technology, applied in the direction of thermoelectric device junction lead-out material, thermoelectric device manufacturing/processing, etc., can solve problems such as lack of improvement measures, and achieve improved thermoelectric conversion performance, thermoelectric conversion performance. The effect of conductivity

Inactive Publication Date: 2017-02-22
XIHUA UNIV
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductivity of conductive polymers depends on two factors: the carrier concentration and its mobility inside the material. The former can be greatly improved by increasing the amount of dopant, but the latter has been lack of effective improvement measures.

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
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] (1) Preparation of polyaniline:

[0056] Preparation of polyaniline by in-situ polymerization of aniline, ammonium persulfate and concentrated hydrochloric acid;

[0057] (2) Preparation of conductive additives:

[0058] S1: Add dispersant to the powder of conductive particles and stir evenly;

[0059] S2: heat up the mixture obtained in step S1, and then slowly add a coupling agent dropwise to react;

[0060] S3: Filter the mixture obtained in step S2, add the first part of wetting agent to the obtained solid powder, then perform the first stage of ball milling, take out the material after the first stage of ball milling, dry, and then proceed to the second stage Ball milling, take out the material again to get the conductive additive;

[0061] (3) Composite

[0062] The polyaniline prepared in step (1), the conductive additive prepared in step (2), and the second part of wetting agent are mixed and ball milled to obtain the high-performance polyaniline organic the...

Embodiment 1

[0071] Weigh 10g of aniline that has been distilled under reduced pressure twice, and add it to 150mL with a concentration of 0.8 mol.L -1 In concentrated hydrochloric acid, stir evenly, and prepare the hydrochloric acid solution A of aniline; add 18g of ammonium persulfate (APS) to 144ml with a concentration of 0.8mol.L -1 In concentrated hydrochloric acid, prepare APS hydrochloric acid solution B; after mixing liquid A and liquid B, place in a water bath at 30°C, mechanically stir for 0.5h of polymerization reaction, then stand still for 24h, and the reaction ends. Suction filter the material and use 0.1mol.L -1 HCl, ethanol, and distilled water were washed until the filtrate was colorless; finally, the filter cake was dried in a vacuum oven at 40°C for 72 hours to obtain powdered polyaniline.

[0072] Add 25g of dimethyl phthalate to 5g of commercially available carbon nanotubes, stir evenly, and then add 5g of coupling agent isopropyl tris(dioctyl pyrophosphate) dropwise...

Embodiment 2

[0075] Weigh 10g of aniline that has been distilled under reduced pressure twice, and add it to 150mL with a concentration of 1.5 mol.L -1 In concentrated hydrochloric acid, stir evenly to prepare aniline hydrochloric acid solution A; add 20g of ammonium persulfate (APS) to 150ml to a concentration of 1.0 mol.L -1 In concentrated hydrochloric acid, prepare APS hydrochloric acid solution B; mix liquid A and liquid B, place in a water bath at 10°C, and mechanically stir for 1 hour of polymerization reaction, then let stand for 24 hours, and the reaction ends. Suction filter the material and use 0.1mol.L -1 HCl, ethanol, and distilled water were washed until the filtrate was colorless; finally, the filter cake was dried in a vacuum oven at 60°C for 48 hours to obtain powdered polyaniline.

[0076] Add 50g of dibutyl phthalate to 5g of commercially available graphite powder, stir evenly, then add 2g of coupling agent aminopropylmethyldiethoxysilane dropwise within 45min at a tem...

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
Login to view more

PUM

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
viscosityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a high-performance polyaniline base organic thermoelectric material and a preparation method thereof. The polyaniline base organic thermoelectric material with excellent thermoelectric conversion performance is obtained by polyaniline preparation, conductive additive preparation and conductive additive and polyaniline ball-milling composite process, and conductive additives are prepared from conductive particles with dispersing agents and coupling agents by multi-stage ball-milling. By adding the conductive particles with proper proportions and modified surfaces into a polyaniline substrate, the thermoelectric conversion performance of the polyaniline base organic thermoelectric material is effectively improved by 0.5-3 times.

Description

technical field [0001] The invention relates to the technical field of organic semiconductor materials, in particular to the technical field of polyaniline-based organic semiconductor materials. Background technique [0002] Thermoelectric materials are a class of functional semiconductor materials that can realize mutual conversion of heat energy and electric energy. When using them for power generation or refrigeration, they have the advantages of no rotating parts, no noise, no maintenance, long service life, and no harmful waste during operation. Advantages, has broad application prospects. [0003] Inorganic thermoelectric materials have been developed earlier and have been the most studied system in thermoelectric materials, and materials with better thermoelectric properties have been developed. However, inorganic thermoelectric materials usually have defects such as complicated preparation, high toxicity, high price, and difficult processing, so their applications a...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01L35/24H01L35/34
CPCH10N10/856H10N10/01
Inventor 马素德张勤勇闵忠华
Owner XIHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap