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Method and dispersion solution for manufacturing transparent polymer film

A polymer transparent and dispersion technology, applied in conductive coatings, cable/conductor manufacturing, circuits, etc., can solve the problems of opaque conductive films, unsuitable transparent conductive films, insufficient conductivity and transparency of conductive films, etc., to improve electrical conductivity The effect of reducing the surface impedance

Inactive Publication Date: 2017-04-12
FAR EASTERN NEW CENTURY COPRRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the boiling point of bisquinic anhydride is 240°C, so under the known drying conditions of 100-200°C, bisquinic anhydride will still remain in the conductive film, forming crystals and making the conductive film opaque, so it is not suitable for making transparent conductive films.
[0006] Although the above-mentioned known technology reveals that the conductivity of PEDOT:PSS can be improved by additives, the conductive film still has the problems of insufficient conductivity and transparency.

Method used

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  • Method and dispersion solution for manufacturing transparent polymer film
  • Method and dispersion solution for manufacturing transparent polymer film
  • Method and dispersion solution for manufacturing transparent polymer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1～A3

[0034] The preparation method of polymer transparent conductive film comprises the following steps:

[0035] 1. Add 3g of malonic acid to 97g of 1wt% PEDOT:PSS aqueous solution (supplier: H.C.Starck GmbH, Goslar; model: Clevios PH1000, the weight ratio of PEDOT and PSS is 1:2.5) and mix evenly to form a The total weight of the dispersion is 100 g. The amount of malonic acid added accounts for 3wt% of the total weight of the dispersion.

[0036] 2. Next, add 100 g of isopropanol to the dispersion as a solvent and stir evenly to form a mixed solution with a total weight of 200 g. Taking the total weight of the dispersion as 100 parts by weight, the amount of isopropanol added is 100 parts by weight. The purpose of adding a solvent is to improve the wettability of the dispersion and reduce the viscosity, so as to increase the convenience of application.

[0037] 3. Control different thicknesses of the mixed solution in the second step by wire bar coating (approximately three t...

Embodiment B1～B3

[0041] Embodiment B1~B3, C1~C3 and D1~D3

[0042] The preparation method is roughly the same as that of Examples A1-A3, except that the addition amount of malonic acid is changed to 5g, 7g and 10g respectively, and the addition amount of PEDOT:PSS aqueous solution is changed to 95g, 93g and 90g respectively, and the examples can be obtained B1~B3, C1~C3, and D1~D3. The amounts of malonic acid added in Examples B1-B3, C1-C3 and D1-D3 were 5 wt%, 7 wt% and 10 wt%, respectively.

[0043] Comparison of transparent conductive films with different amounts of malonic acid added

[0044] Table 1

[0045]

[0046] The results in Table 1 show that the conductive film prepared by the method of the present invention has good conductivity and low haze, especially when the addition of malonic acid is 5 wt%, the conductivity of 1111 S / cm can be realized. It is worth noting that if the substrate is changed from PET to glass, the obtained data results are also the same.

[0047] Compari...

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Abstract

The invention provides a method for manufacturing a macromolecule transparent conductive film. The method comprises providing a conductive macromolecule water solution containing PEDOT:PSS, adding a conductive auxiliary additive to the conductive macromolecule water solution to prepare a dispersion liquid, disposing the dispersion liquid on a surface of a base material to prepare a dispersion liquid film, and drying the dispersion liquid film at temperature of more than 140 degrees to prepare the macromolecule transparent conductive film. The conductive auxiliary additive is a malonic acid, and the adding amount of the conductive auxiliary additive occupies 3-20 weight percentages of the total weight of the dispersion liquid. The invention further provides the dispersion liquid for manufacturing the macromolecule transparent conductive film. The malonic acid is adopted as the conductive auxiliary additive, conductive macromolecule surface impedance can be reduced, and the electric conductivity is improved; and, after the dispersion liquid containing conductive macromolecules is dried to form the film, the malonic acid cannot form crystals and then cannot be residual in the conductive film, and a surface of the film is transparent, so the method and the dispersion liquid are suitable for manufacturing the high-transparence and low-impedance transparent conductive film.

Description

technical field [0001] The present invention relates to a method for manufacturing a polymer transparent conductive film, in particular to a method for manufacturing a polymer transparent conductive film which can effectively reduce the surface resistance of a conductive polymer. The present invention also relates to a dispersion liquid, in particular to a dispersion liquid for manufacturing a polymer transparent conductive film. Background technique [0002] A conductive polymer is a polymer with a conjugated double bond structure, and its π bond electrons can move freely. After the polymer is doped, holes are formed due to the lack of electrons, or additional electrons are added, so that the electrons or holes can move freely on the molecular chain, so that they have conductive properties. Due to the conductivity and softness of the conductive polymer, it can replace the traditional Indium Tin Oxide (ITO) and become a good material for soft touch panels. At present, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/12C09D5/24C09D165/00C09D125/18
Inventor 赖信凯曾智远蔡惠珊
Owner FAR EASTERN NEW CENTURY COPRRATION