CN105575548A - Waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method - Google Patents
Waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method Download PDFInfo
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- CN105575548A CN105575548A CN201510860770.8A CN201510860770A CN105575548A CN 105575548 A CN105575548 A CN 105575548A CN 201510860770 A CN201510860770 A CN 201510860770A CN 105575548 A CN105575548 A CN 105575548A
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- type polyurethane
- polypyrrole
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- sulfonate
- conductive material
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Abstract
The invention belongs to the field of conductive material preparation and especially relates to a waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method. The invention provides an energy-saving, environmentally-friendly and high-conductivity waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method so as to solve the technical defects in the prior art. According to the method, 2,4-diaminobenzenesulfonic acid sodium salt serves as a hydrophilic chain-extending agent; a waterborne sulfonate-type polyurethane dispersion liquid is synthesized through a pre-polymer method; under the effect of a FeCl3 oxidizing agent, a waterborne polyurethane/ polypyrrole dispersion liquid is prepared through an in-situ chemical oxidative polymerization method; and a conductive thin film is obtained through a solution casting method. According to the conductive material prepared through the method, the conductivity reaches up to 1S/cm, the preparation process is simple, used solvent is less, and resources are saved.
Description
Technical field
The invention belongs to electric conducting material preparation field, particularly relate to a kind of water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials preparation method.
Background technology
The structure of polyurethane (PU), form and performance can along with its characteristics, the change of molecular chain length and block structure presents extensive change, there is stronger molecule designability, in recent years, the composite material of polyurethane and conducting polymer has caused to be paid close attention to widely, and at anti-corrosive metal coating, electromagnetic shielding and antistatic field obtain certain concern, as Robil ǎ etc. carries out the polymerization of pyrroles at the electrode surface being coated with PU film by electrochemical process, prepare polyurethane/polypyrrole composite conducting material, the method cost is higher, and efficiency of pcr product is severely limited by the area of electrode, Kotal etc. have prepared polyurethane/polypyrrole composite conducting material by the method for physical blending and in-situ polymerization in tetrahydrofuran solvent, it possesses excellent electric conductivity, but employ a large amount of solvents in preparation process.
Summary of the invention
The object of the invention is, for above-mentioned defect, to provide a kind of energy-saving and environmental protection, and water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials preparation method that conductivity is high.
The present invention is achieved by the following technical programs: a kind of water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials preparation method, comprises the steps:
(1) 0.02mol polyethylene glycol is put into the dry there-necked flask of 500mL, at 100 DEG C, vacuum dehydration 1-1.5h, is cooled to, 70 DEG C, adds 0.036mol IPDI, 11gN ,-dinethylformamide, at 70 DEG C, react 2h; , add subsequently, 0.01mol2,4-diamino benzene sulfonic acid sodium chain extension, continue reaction 2h at 80 DEG C after, be cooled to 40 DEG C, add deionized water rapid stirring 20min, obtain water-based sulfonate type polyurethane dispersing liquid;
(2) slowly drip pyrroles in hydrotropism's sulfonate type polyurethane dispersing liquid, adding pyrroles's final mass concentration in rear mixed solution is 30%, and regulates dispersion liquid pH to 1.5 with hydrochloric acid, slowly drips FeCl
3solution, wherein n (FeCl
3)/n (pyrroles)=2.2, after reacting 3h, obtains water-based sulfonate type polyurethane/polypyrrole dispersion liquid at 0 DEG C;
(3) dispersion liquid that step (2) obtains is placed in polyfluortetraethylene plate, at room temperature natural drying 7d, is then placed in the dry 2d of 40 DEG C of vacuum drying chambers, obtains water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials.
The present invention has following beneficial effect:
Adopt water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials that the inventive method prepares, its conductivity is up to 1S/cm, and preparation process is simple, and the solvent of use is few, economizes on resources.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Specific embodiment: the dry there-necked flask of 500mL put into by 0.02mol polyethylene glycol by (1), and at 100 DEG C, vacuum dehydration 1-1.5h, is cooled to; 70 DEG C; add 0.036mol IPDI, 11gN ,-dinethylformamide, at 70 DEG C, react 2h; , add subsequently, 0.01mol2,4-diamino benzene sulfonic acid sodium chain extension, continue reaction 2h at 80 DEG C after, be cooled to 40 DEG C, add deionized water rapid stirring 20min, obtain water-based sulfonate type polyurethane dispersing liquid;
(2) slowly drip pyrroles in hydrotropism's sulfonate type polyurethane dispersing liquid, adding pyrroles's final mass concentration in rear mixed solution is 30%, and regulates dispersion liquid pH to 1.5 with hydrochloric acid, slowly drips FeCl
3solution, wherein n (FeCl
3)/n (pyrroles)=2.2, after reacting 3h, obtains water-based sulfonate type polyurethane/polypyrrole dispersion liquid at 0 DEG C;
(3) dispersion liquid that step (2) obtains is placed in polyfluortetraethylene plate, at room temperature natural drying 7d, is then placed in the dry 2d of 40 DEG C of vacuum drying chambers, obtains water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials.
Measure the material that the inventive method prepares, its conductivity is up to 1S/cm, and preparation process is simple, and the solvent of use is few, economizes on resources.
Above content is the further description done the present invention in conjunction with concrete execution mode, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (1)
1. water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials preparation method, is characterized in that comprising the steps:
(1) 0.02mol polyethylene glycol is put into the dry there-necked flask of 500mL, at 100 DEG C, vacuum dehydration 1-1.5h, is cooled to, 70 DEG C, adds 0.036mol IPDI, 11gN ,-dinethylformamide, at 70 DEG C, react 2h; , add subsequently, 0.01mol2,4-diamino benzene sulfonic acid sodium chain extension, continue reaction 2h at 80 DEG C after, be cooled to 40 DEG C, add deionized water rapid stirring 20min, obtain water-based sulfonate type polyurethane dispersing liquid;
(2) slowly drip pyrroles in hydrotropism's sulfonate type polyurethane dispersing liquid, adding pyrroles's final mass concentration in rear mixed solution is 30%, and regulates dispersion liquid pH to 1.5 with hydrochloric acid, slowly drips FeCl
3solution, wherein n (FeCl
3)/n (pyrroles)=2.2, after reacting 3h, obtains water-based sulfonate type polyurethane/polypyrrole dispersion liquid at 0 DEG C;
(3) dispersion liquid that step (2) obtains is placed in polyfluortetraethylene plate, at room temperature natural drying 7d, is then placed in the dry 2d of 40 DEG C of vacuum drying chambers, obtains water-based sulfonic acid type polyurethane/Polypyrrole Conducting Materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860770.8A CN105575548A (en) | 2015-12-01 | 2015-12-01 | Waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860770.8A CN105575548A (en) | 2015-12-01 | 2015-12-01 | Waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method |
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|---|---|
| CN105575548A true CN105575548A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510860770.8A Pending CN105575548A (en) | 2015-12-01 | 2015-12-01 | Waterborne sulfonate-type polyurethane/ polypyrrole conductive material preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538448A (en) * | 2018-03-14 | 2018-09-14 | 合肥尚强电气科技有限公司 | Preparation method of high-molecular conductive material |
| CN115044340A (en) * | 2022-06-24 | 2022-09-13 | 山东亿博润新材料科技有限公司 | Antistatic polyurethane glue and preparation method and application thereof |
-
2015
- 2015-12-01 CN CN201510860770.8A patent/CN105575548A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538448A (en) * | 2018-03-14 | 2018-09-14 | 合肥尚强电气科技有限公司 | Preparation method of high-molecular conductive material |
| CN115044340A (en) * | 2022-06-24 | 2022-09-13 | 山东亿博润新材料科技有限公司 | Antistatic polyurethane glue and preparation method and application thereof |
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Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |