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High-conductivity polythiophene conductive coating layer and preparation method and application thereof

A high-conductivity, conductive coating technology applied in the field of materials to improve electrical and mechanical properties, reduce production costs, and facilitate processing and use

Inactive Publication Date: 2014-04-30
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been related reports on the preparation of polythiophene / insulating polymer composites, the in situ polymerization of thiophene directly on insulating polymer films has not been reported.

Method used

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  • High-conductivity polythiophene conductive coating layer and preparation method and application thereof
  • High-conductivity polythiophene conductive coating layer and preparation method and application thereof
  • High-conductivity polythiophene conductive coating layer and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Sulfonating the polyethylene terephthalate film in chlorosulfonic acid at 0°C for a reaction time of 4 hours to obtain the sulfonated polyethylene terephthalate film; Rinse the sulfonated polyethylene terephthalate film three times with distilled water and then dry it at room temperature to obtain polyethylene terephthalate with sulfonate groups on the surface;

[0039](2) Put iron oxide and p-toluenesulfonic acid in a molar ratio of 1:0.8 into the reaction flask, add distilled water until its solid content is 40%, and reflux at 110°C for 6 hours to obtain iron p-toluenesulfonate solution, which can be removed by filtration After the unreacted iron oxide is recovered by high-vacuum and reduced-pressure distillation, most of the aqueous solution is recovered, and then a small amount of ethanol is added to bring water to the outside, and finally evaporated to dryness to obtain iron (Ⅲ) p-toluenesulfonate as a solid;

[0040] Dissolve thiophene in a mixed solvent compo...

Embodiment 2

[0043] (1) Sulfonating the polyethylene terephthalate film in chlorosulfonic acid at 0°C for a reaction time of 4 hours to obtain the sulfonated polyethylene terephthalate film; Rinse the sulfonated polyethylene terephthalate film with distilled water for 4 times and then dry it at room temperature to obtain a polyethylene terephthalate film with sulfonate groups on the surface;

[0044] (2) Put iron oxide and p-toluenesulfonic acid in a molar ratio of 1:0.8 into the reaction flask, add distilled water until its solid content is 40%, and reflux at 110°C for 6 hours to obtain iron p-toluenesulfonate solution, which can be removed by filtration After the unreacted iron oxide is recovered by high-vacuum and reduced-pressure distillation, most of the aqueous solution is recovered, and then a small amount of ethanol is added to bring water to the outside, and finally evaporated to dryness to obtain iron (Ⅲ) p-toluenesulfonate as a solid;

[0045] Dissolve thiophene in a mixed solve...

Embodiment 3

[0048] (1) Sulfonate the polyethylene terephthalate film in chlorosulfonic acid at 5°C for 2 hours to obtain the sulfonated polyethylene terephthalate film; Rinse the sulfonated polyethylene terephthalate film with distilled water for 5 times and then dry it at room temperature to obtain polyethylene terephthalate with sulfonate groups on the surface;

[0049] (2) Put iron oxide and naphthalenesulfonic acid into the reaction flask at a molar ratio of 1:0.8, add distilled water until its solid content is 40%, reflux at 110°C for 6 hours, and obtain ferric naphthalenesulfonate solution, filter to remove unreacted After the ferric oxide is obtained, most of the aqueous solution is recovered by high-vacuum and reduced-pressure distillation, and then a small amount of ethanol is added to bring water to the outside, and finally evaporated to dryness to obtain iron (Ⅲ) naphthalenesulfonate solid;

[0050] Dissolve 3-methylthiophene in a mixed solvent composed of chloroform and ether ...

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Abstract

The invention belongs to the field of materials and in particular relates to a high-conductivity polythiophene conductive coating layer and a preparation method and application thereof. The conductive coating layer is obtained by performing in-situ polymerization on thiophene or thiophene derivatives on an insulating polymer film by a chemical oxidation method. A polymer monomer preferably comprises thiophene and 3-methylthiophene; the insulating polymer film preferably is made from polyethylene glycol terephthalate, polyamino-bis-mieimide or polystyrene. Furthermore, the invention also provides a preparation method of the polythiophene conductive coating layer with high conductivity; by virtue of tight connection between polythiophene and the insulating polymer film, the conductive coating layer is high in conductivity and has the flexibility of general polymers. The conductivity of the conductive coating layer can be up to 10<-3>S / cm, and the conductive coating layer can be applied to the fields of electromagnetic wave shielding, static electricity prevention, organic electronic devices and the like.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a high-conductivity polythiophene conductive coating and a preparation method and application thereof. Background technique [0002] Conductive polymers are considered to be new materials in the 21st century because of their good thermal stability, chemical stability, high charge storage capacity, good electrochemical performance and gas separation performance. Polythiophene has aroused great interest of scientific researchers because of its excellent electrical properties, easy preparation, good thermal stability, and high use value after compounding with other general-purpose polymers (CN10438656A). Generally, the conductivity, morphology and performance of polythiophene composite films obtained by selecting different preparation processes and preparation conditions in the process of preparing polythiophene composite materials from polythiophene or polythiophene derivatives...

Claims

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Application Information

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IPC IPC(8): B32B33/00B32B27/08C09D165/00C08G61/12
Inventor 何宇杨坤陈荣许凯陈鸣才方燕许正敏
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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