Polythiophene/sulfonic acid aqueous polyurethane conductive material as well as preparation method and application thereof

A water-based polyurethane and sulfonic acid water-based technology, used in polyurea/polyurethane coatings, conductive coatings, coatings, etc., can solve the problems of affecting the conductivity of molecules, affecting the solubility, and the expensive solubility of fullerenes, and achieve stable conductivity. good film-forming properties, low cost and outstanding conductivity

Active Publication Date: 2017-06-23
广州纽楷美新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the introduction of side chains in thiophene not only affects the solubility, but also the conductive properties of the molecule
Another patent 201510427292.1 discloses a PEDOT:PSS water-soluble fullerene derivative or a water-insoluble fullerene derivative, which introduces conductive fullerene derivatives into PEDOT:PSS, but fullerenes are relatively expensive and poor solubility in aqueous solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A polythiophene / sulfonic acid aqueous polyurethane conductive material, the preparation process is as follows:

[0026] (1) Preparation of sulfonic acid / waterborne polyurethane emulsion

[0027] Add the mixed solution of hexamethylene diisocyanate and dimethylol propionic acid dropwise to the mixed solution of polytetrahydrofuran, acetone, and catalyst dibutyltin dilaurate with a number average molecular weight of 16000, and control the reaction temperature at 80-90°C. 4h, then dropwise add a mixed solution of hydroxylamine hydrochloride and 1,2-diamino-γ-propanesulfonate sodium, react for 1.5h, then remove acetone, add water and emulsify to obtain sulfonic acid / water-based polyurethane emulsion; among them, polytetrahydrofuran Consumption is 100g, and the molar ratio of polytetrahydrofuran, hexamethylene diisocyanate, dimethylol propionic acid is 1:1.1:0.5, and described hexamethylene diisocyanate and hydroxylamine hydrochloride, 1,2-diamino- The molar ratio of sodium...

Embodiment 2

[0031] A polythiophene / sulfonic acid aqueous polyurethane conductive material, the preparation process is as follows:

[0032] (1) Preparation of sulfonic acid / waterborne polyurethane emulsion

[0033] Add the mixed solution of hexamethylene diisocyanate and dimethylol propionic acid dropwise to the mixed solution of polytetrahydrofuran, acetone, and catalyst dibutyltin dilaurate with a number average molecular weight of 16000, and control the reaction temperature at 80-90°C. 5h, then dropwise add a mixed solution of hydroxylamine hydrochloride and 1,2-diamino-γ-propanesulfonate sodium, react for 1h, then remove acetone, add water to emulsify, and obtain sulfonic acid / water-based polyurethane emulsion; wherein, the amount of polytetrahydrofuran 100g, the molar ratio of polytetrahydrofuran, hexamethylene diisocyanate, and dimethylol propionic acid is 1:1.2:0.4, and the hexamethylene diisocyanate and hydroxylamine hydrochloride, 1,2-diamino-γ - The molar ratio of sodium propane...

Embodiment 3

[0037] A polythiophene / sulfonic acid aqueous polyurethane conductive material, the preparation process is as follows:

[0038] (1) Preparation of sulfonic acid / waterborne polyurethane emulsion

[0039] Add the mixed solution of hexamethylene diisocyanate and dimethylol propionic acid dropwise to the mixed solution of polytetrahydrofuran, acetone, and catalyst dibutyltin dilaurate with a number average molecular weight of 16000, and control the reaction temperature at 80-90°C. 3h, then dropwise add the mixed solution of hydroxylamine hydrochloride and 1,2-diamino-γ-propanesulfonate sodium, react for 2h, then remove acetone, add water to emulsify, and obtain sulfonic acid / water-based polyurethane emulsion; among them, the amount of polytetrahydrofuran 100g, the molar ratio of polytetrahydrofuran, hexamethylene diisocyanate, and dimethylol propionic acid is 1:1.05:0.4, and the hexamethylene diisocyanate and hydroxylamine hydrochloride, 1,2-diamino-γ - The molar ratio of sodium p...

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PUM

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Abstract

The invention discloses a polythiophene/sulfonic acid aqueous polyurethane conductive material as well as a preparation method and application thereof. The preparation method of the polythiophene/sulfonic acid aqueous polyurethane conductive material comprises the following steps of: (1) performing a reaction on polytetrahydrofuran, the molecular weight of which is 15000-20000 and hexamethyne diisocyanate, dimethylolpropionic acid, hydroxylamine hydrochloride and amino sulfonate, and after reaction, adding water to emulsify to obtain a sulfonic acid/aqueous polyurethane emulsion; and (2) preparing the sulfonic acid/aqueous polyurethane emulsion into an aqueous solution, adding a monomer 3,4-ethylenedioxythiophene, wherein the monomer is polymerized in the aqueous solution, and after reaction, removing an inorganic salt to prepare the polythiophene/sulfonic acid aqueous polyurethane conductive material. The preparation method disclosed by the invention is simple, the raw materials are easily available, the cost is low, and the method has important industrial application value. The prepared polythiophene/sulfonic acid aqueous polyurethane conductive material is quite obvious in conductivity and good in conducting film-forming property, and can be used for preparing a PET surface antistatic coating.

Description

technical field [0001] The invention relates to the technical field of preparation of conductive polymer materials. Specifically, the invention relates to a polythiophene / sulfonic acid water-based polyurethane conductive material and its preparation method and application. Background technique [0002] Conductive polymers are a class of polymer materials that are converted from insulators to conductors by chemically or electrochemically "doping" polymers with conjugated π-bonds. Compared with metals, conductive polymers have the advantages of light weight and good processability. Compared with traditional inorganic materials, conductive polymers are simpler in manufacturing process, cheaper in raw materials and manufacturing process, and can also be made into thin films. Examples of polymers having conjugated π-bonds are polypyrrole, polythiophene, polyaniline, polyacetylene, polyphenylene, and poly(p-phenylene-vinylene). At present, a large number of patents and literatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L65/00C08G18/66C08G18/48C08G18/34C08K5/42C08G61/12C09D175/08C09D165/00C09D5/24
CPCC08G18/348C08G18/4854C08G18/6692C08G61/126C08G2261/11C08G2261/228C08G2261/3223C08K5/42C08L65/00C08L75/08C08L2201/04C09D5/24C09D165/00C09D175/08
Inventor 何明辉崔艳艳
Owner 广州纽楷美新材料科技有限公司
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