CN102749359A - Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof - Google Patents
Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof Download PDFInfo
- Publication number
- CN102749359A CN102749359A CN2011100979808A CN201110097980A CN102749359A CN 102749359 A CN102749359 A CN 102749359A CN 2011100979808 A CN2011100979808 A CN 2011100979808A CN 201110097980 A CN201110097980 A CN 201110097980A CN 102749359 A CN102749359 A CN 102749359A
- Authority
- CN
- China
- Prior art keywords
- humidity
- polypyrrole
- sensitive element
- interdigital
- cationic polyelectrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The invention discloses a cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and a manufacturing method thereof. The cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element is characterized in that a ceramic matrix is utilized and multiple pairs of interdigital Au electrodes are arranged on the ceramic matrix; humidity-sensitive films are coated on surfaces of the interdigital Au electrodes and the ceramic matrix; and the humidity-sensitive film is a composite of cross-linked quaternized polytetravinylpyridine and poly(ionic liquid)-doped dispersible polypyrrole. In a wide humidity range and especially in a low-humidity environment, the cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element has an appropriate resistance value, high sensitivity, good linearity, a fast response speed, small hysteresis, good reversibility, strong stability and detectability at a room temperature. Therefore, the cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element can be widely used for environment humidity accurate measurement and control in fields of industrial and agricultural production, storage and atmospheric environment monitoring.
Description
Technical field
The present invention relates to a kind of cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element and preparation method thereof.
Background technology
Humidity Detection be controlled at fields such as commercial production, modern digitalization agricultural, storage, atmosphere environment supervision and play more and more vital role; This is also for detecting the most frequently used and the most effective instrument of humidity; Be the vast market that the development of humidity sensor brings, also promoted the research of humidity sensor.Current humidity sensor detects principle according to it can be divided into resistor-type, and capacitor type, sonic surface wave type, optical-fiber type, quartz vibrator type etc., the core of humidity sensor are that sensitive material then mainly contains two types of inorganic semiconductor pottery and organic polymers.In many humidity sensors, high molecule electric resistance type is high with its response sensitivity, preparation is easy, cheap, be easy to modification regulates and control advantages such as performance, becomes the emphasis of humidity sensor research and development.Current macromolecule resistance type humidity sensor is main with polyelectrolyte mainly, and this type material and hydrone effect are strong, embody high response sensitivity.But also cause adsorbed water molecule to take off the absorption difficulty simultaneously, humidity hysteresis is bigger, and the response time is slower, and this has hindered it to a certain extent and has applied.For this reason, be necessary to carry out modification,, add fast-response, improve wet quick response characteristic to reduce humidity hysteresis for humidity sensing polymer materials.Polyelectrolyte and hydrophobic material is compound through methods such as copolymerization, blend, can reduce the effect of hydrone and compound substance to a certain extent, accelerate removing of hydrone, reduce humidity hysteresis.But because it is the introducing of hydrophobic material makes the electric conductivity of compound substance reduce again, especially bigger than impedance under the low environment simultaneously in humidity, be difficult to measure.This will cause the sensing range of humidity sensor to narrow down, and it is used also deleterious impact.Select the compound humidity-sensitive material of proper polymer; When reducing the sensor humidity hysteresis, adding fast-response; Make sensor can significantly not increase than the impedance under the low-humidity environment; The sensing range that still has broad is measured, and this also is the major issue that macromolecule resistance type humidity sensor research needs solution.
Summary of the invention
The purpose of this invention is to provide a kind ofly have at room temperature that measurement range is wide, resistance value is moderate, highly sensitive, the linearity good, response is fast, humidity hysteresis is little cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element and preparation method thereof.
The high molecule electric resistance type humidity sensitive element that cationic polyelectrolyte of the present invention and polypyrrole are compound; Has ceramic matrix; Have many at ceramic matrix photomask surface and evaporation to interdigital gold electrode; On interdigital gold electrode, be connected with lead-in wire, be coated with humidity sensitive thin film at ceramic matrix and interdigital gold electrode surfaces, humidity sensitive thin film is the polypyrrole composite high-molecular humidity-sensitive material that crosslinked quaternized poly 4 vinyl pyridine and poly ion liquid mix.
The interdigital width of the interdigital gold electrode on above-mentioned ceramic matrix surface is 20～200 μ m, and interdigital gap is 20～200 μ m.
The method for making of the high molecule electric resistance type humidity sensitive element that cationic polyelectrolyte and polypyrrole are compound may further comprise the steps:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
2) 1.0-5.0 is restrained in bromination 1-vinyl-3-ethyl imidazol(e) and the 0.01-0.05 gram azoisobutyronitrile adding 10-50 milliliter chloroform, stirring at room was warming up to 50-100 ℃ of reaction 1-5 hour after one hour; Product is cooled to room temperature, discards solvent, use dissolve with methanol; In acetone, precipitate then; Suction filtration, it is dry until constant weight to put into vacuum drying oven, obtains gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) 0.1-0.5 being restrained step 2) bromination 1-vinyl-3-ethyl imidazol(e) and the 0.1-0.5 gram pyrrole monomer that gathers that makes adds in the 10-50 ml deionized water successively; Stir; Under the sonicated condition, in 10-30 minute, drip the ammonium persulfate solution 20-60 milliliter of 0.2-0.6 grams per milliliter, continued under the sonicated condition room temperature reaction 1-5 hour; Products therefrom precipitates with excessive p-toluenesulfonic acid solution; Centrifuging, dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 50-100 milligram step 3) is made mixes 1-5 milliliter N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 50-100 milligram poly 4 vinyl pyridine and 0.1-0.5 milliliter 1 then successively, the 4-dibromobutane; Stir ageing 6-24 hour down at 10-50 ℃, make lotion;
5) the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 1-5 minute; After lifting taking-up; At 50-150 ℃ of crosslinked quaternary ammoniated 10-20 hour, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
The interdigital width of the interdigital gold electrode on above-mentioned ceramic matrix surface is 20～200 μ m, and interdigital gap is 20～200 μ m.
The invention has the advantages that:
1) the quaternized poly 4 vinyl pyridine of cationic polyelectrolyte is a kind of typical polyelectrolyte material, and it has higher response sensitivity.But because its water absorptivity is stronger, hydrone takes off the absorption difficulty, and humidity hysteresis is bigger, and the response time is longer.Water insoluble with poly ion liquid as the intrinsic conduction macromolecular material polypyrrole of adulterant preparation; With with the very strong solution combined preparation humidity sensing film of quaternized poly 4 vinyl pyridine of hydrone effect; Can significantly weaken the interaction of hydrone and sensitive membrane, make that the hydrone on the sensitive membrane is more prone to take off absorption, thereby humidity hysteresis is obviously reduced; Response time accelerates, and significantly improves the response characteristic of humidity sensor; Even simultaneously under low wet environment, also have good electrical conductivity as the intrinsic conduction macromolecular material polypyrrole of stabilizing agent with poly ion liquid; Itself and quaternized poly 4 vinyl pyridine is directly compound; Can not make that the impedance under low wet environment of compound humidity-sensitive material is too high, be difficult to measure.
2) with poly ion liquid as the intrinsic conduction macromolecular material polypyrrole of adulterant preparation at N, have good dispersiveness in the organic solvents such as dinethylformamide, solved the insoluble usually molten unmanageable difficult problem of conducting polymer composite.Through the most simple and effective solution blending process; Can realize that polypyrrole and poly 4 vinyl pyridine are directly well compound; Adopt dip-coating method to prepare humidity sensing film easily, and prepare resistor-type macromolecule compound sensor, avoided first preparation polyelectrolyte membrane through the heating aftertreatment; Realize compound complicated technology through pyrroles's vapour phase polymerization again, and process is easier to control;
3) the synthetic preparation process of humidity-sensitive material is simple, and cost of material is cheap.Owing to solved the processability of polypyrrole, can realize solution combinedly, and adopt dip-coating method to prepare element, have simple and easy to do, the element high conformity, yield rate is high, is suitable for producing in batches;
4) to have a volume little for humidity-sensitive element of the present invention, low cost, advantage such as easy to use.Adopting interdigital width is 20～200 μ m, and interdigital gap is 20～200 μ m, and substrate is the interdigital gold electrode structure of porous ceramics, can improve the contact of humidity sensitive thin film and electrode basement, improves the stability of element.This humidity-sensitive element can be widely used in the industrial and agricultural production process, and storage is accurately measured and control for ambient humidity during atmosphere environment supervision.
Description of drawings
Fig. 1 is the structural representation of humidity-sensitive element of the present invention;
Fig. 2 is the humidity hysteresis curve of the compound high molecule electric resistance type humidity sensitive element of crosslinked quaternized poly 4 vinyl pyridine and polypyrrole.
Fig. 3 is the response time curve of the compound high molecule electric resistance type humidity sensitive element humidity-sensitive element of crosslinked quaternized poly 4 vinyl pyridine and polypyrrole;
Fig. 4 is the humidity hysteresis curve of crosslinked quaternized poly 4 vinyl pyridine high molecule electric resistance type humidity sensitive element.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing and embodiment.
With reference to Fig. 1; The compound high molecule electric resistance type humidity sensitive element of cationic polyelectrolyte and polypyrrole has ceramic matrix 1; Have many at ceramic matrix photomask surface and evaporation to interdigital gold electrode 2; On interdigital gold electrode, be connected with lead-in wire 4, be coated with humidity sensitive thin film 3 at ceramic matrix and interdigital gold electrode surfaces, humidity sensitive thin film 3 is crosslinked quaternized poly 4 vinyl pyridine and polypyrrole composite high-molecular humidity-sensitive material.
The interdigital interdigital width of said potsherd matrix surface is 20～200 μ m, and interdigital gap is 20～200 μ m.
Embodiment 1:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
The interdigital width of the interdigital gold electrode on ceramic matrix surface is 100 μ m, and interdigital gap is 100 μ m.
2) 3.5 gram bromination 1-vinyl-3-ethyl imidazol(e)s and 0.035 gram azoisobutyronitrile are added in 20 milliliters of chloroforms, stirring at room was warming up to 90 ℃ of reactions 3 hours after one hour; Product is cooled to room temperature, discards solvent, use an amount of dissolve with methanol; In a large amount of acetone, precipitate then, suction filtration, and it is dry until constant weight to put into vacuum drying oven; Obtain white solid, for gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) with 0.35 the gram step 2) make gather bromination 1-vinyl-3-ethyl imidazol(e) and 0. 5 the gram pyrrole monomers add successively in the 30 mL deionized waters; Stir,, continued under the sonicated condition room temperature reaction 1 hour 40 milliliters of the ammonium persulfate solutions that in 25 minutes, drips 0.4 grams per milliliter under the sonicated condition; Products therefrom precipitates with excessive p-toluenesulfonic acid solution; Centrifuging, dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 60 milligrams of step 3) made mixes is with 1.5 milliliters of N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 60 milligrams of poly 4 vinyl pyridines and 0.3 milliliter 1,4-dibromobutane then successively; Stir ageing 8 hours down at 45 ℃, make lotion;
5) adopt dip coater that the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 2.5 minutes; After lifting taking-up; 100 ℃ crosslinked quaternary ammoniated 18 hours, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
The humidity hysteresis curve of this humidity-sensitive element is seen Fig. 2, and by the figure finding, the humidity hysteresis of the electric resistance type humidity sensitive element that quaternary ammonium salt polyelectrolyte and polypyrrole are compound significantly is reduced to 1%RH, and under semilog coordinate, has good response linearity, embodies well wet quick characteristic.
Visible by Fig. 3, the present invention prepares the humidity-sensitive element that obtains in the process to have than response speed faster, and moisture absorption and dehumidification time are all shorter, are respectively 13 seconds and 8 seconds;
Shown in Figure 4 for the present invention prepares the crosslinked quaternized humidity hysteresis curve that gathers tetrem thiazolinyl pyridine that obtains in the process, by the figure finding, the crosslinked quaternized humidity hysteresis that gathers tetrem thiazolinyl pyridine is bigger, is about 8%RH.
Embodiment 2:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
The interdigital width of the interdigital gold electrode on ceramic matrix surface is 20 μ m, and interdigital gap is 20 μ m.
2) 1.0 gram bromination 1-vinyl-3-ethyl imidazol(e)s and 0.03 gram azoisobutyronitrile are added in 50 milliliters of chloroforms, stirring at room was warming up to 100 ℃ of reactions 5 hours after one hour; Product is cooled to room temperature, discards solvent, use an amount of dissolve with methanol; In a large amount of acetone, precipitate then, suction filtration, and it is dry until constant weight to put into vacuum drying oven; Obtain white solid, for gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) with 0.1 the gram step 2) make gather bromination 1-vinyl-3-ethyl imidazol(e) and 0.5 the gram pyrrole monomer add successively in the 50 mL deionized waters, stir, under the sonicated condition; In 10 minutes, drip 20 milliliters of the ammonium persulfate solutions of 0.2 grams per milliliter; Continuation room temperature reaction 5 hours under the sonicated condition, products therefrom precipitates with excessive p-toluenesulfonic acid solution, centrifuging; Dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 100 milligrams of step 3) made mixes is with 5 milliliters of N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 100 milligrams of poly 4 vinyl pyridines and 0.1 milliliter 1,4-dibromobutane then successively; Stir ageing 24 hours down at 50 ℃, make lotion;
5) adopt dip coater that the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 5 minutes; After lifting taking-up; 50 ℃ crosslinked quaternary ammoniated 20 hours, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
Embodiment 3:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
The interdigital width of the interdigital gold electrode on ceramic matrix surface is 40 μ m, and interdigital gap is 40 μ m.
2) 2.0 gram bromination 1-vinyl-3-ethyl imidazol(e)s and 0.03 gram azoisobutyronitrile are added in 20 milliliters of chloroforms, stirring at room was warming up to 60 ℃ of reactions 2 hours after one hour; Product is cooled to room temperature, discards solvent, use an amount of dissolve with methanol; In a large amount of acetone, precipitate then, suction filtration, and it is dry until constant weight to put into vacuum drying oven; Obtain white solid, for gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) with 0.3 the gram step 2) make gather bromination 1-vinyl-3-ethyl imidazol(e) and 0.5 the gram pyrrole monomer add successively in the 20 mL deionized waters; Stir,, continued under the sonicated condition room temperature reaction 2 hours 25 milliliters of the ammonium persulfate solutions that in 15 minutes, drips 0.25 grams per milliliter under the sonicated condition; Products therefrom precipitates with excessive p-toluenesulfonic acid solution; Centrifuging, dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 70 milligrams of step 3) made mixes is with 3 milliliters of N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 40 milligrams of poly 4 vinyl pyridines and 0.4 milliliter 1,4-dibromobutane then successively; Stir ageing 12 hours down at 20 ℃, make lotion;
5) adopt dip coater that the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 2 minutes; After lifting taking-up; 80 ℃ crosslinked quaternary ammoniated 15 hours, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
Embodiment 4:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
The interdigital width of the interdigital gold electrode on ceramic matrix surface is 200 μ m, and interdigital gap is 200 μ m.
2) 2.5 gram bromination 1-vinyl-3-ethyl imidazol(e)s and 0.03 gram azoisobutyronitrile are added in 25 milliliters of chloroforms, stirring at room was warming up to 70 ℃ of reactions 4 hours after one hour; Product is cooled to room temperature, discards solvent, use an amount of dissolve with methanol; In a large amount of acetone, precipitate then, suction filtration, and it is dry until constant weight to put into vacuum drying oven; Obtain white solid, for gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) with 0.4 the gram step 2) make gather bromination 1-vinyl-3-ethyl imidazol(e) and 0.25 the gram pyrrole monomer add successively in the 20 mL deionized waters; Stir,, continued under the sonicated condition room temperature reaction 2 hours 30 milliliters of the ammonium persulfate solutions that in 20 minutes, drips 0.3 grams per milliliter under the sonicated condition; Products therefrom precipitates with excessive p-toluenesulfonic acid solution; Centrifuging, dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 80 milligrams of step 3) made mixes is with 4 milliliters of N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 60 milligrams of poly 4 vinyl pyridines and 0.3 milliliter 1,4-dibromobutane then successively; Stir ageing 10 hours down at 40 ℃, make lotion;
5) adopt dip coater that the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 3 minutes; After lifting taking-up; 150 ℃ crosslinked quaternary ammoniated 14 hours, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
Claims (3)
1. the compound high molecule electric resistance type humidity sensitive element of cationic polyelectrolyte and polypyrrole; It is characterized in that: it has ceramic matrix ⑴; Have many at ceramic matrix photomask surface and evaporation to interdigital gold electrode ⑵; On interdigital gold electrode, be connected with lead-in wire ⑷, be coated with humidity sensitive thin film ⑶ at ceramic matrix and interdigital gold electrode surfaces, humidity sensitive thin film is the polypyrrole composite high-molecular humidity-sensitive material that crosslinked quaternized poly 4 vinyl pyridine and poly ion liquid mix.
2. cationic polyelectrolyte according to claim 1 and polypyrrole compound polymer resistor type humidity-sensitive element is characterized in that: the interdigital width of the interdigital gold electrode on ceramic matrix surface is 20～200 μ m, and interdigital gap is 20～200 μ m.
3. make the method for described cationic polyelectrolyte of claim 1 and polypyrrole compound polymer resistor type humidity-sensitive element, it is characterized in that may further comprise the steps:
1) clean surface photoetching and evaporation have the ceramic matrix of interdigital gold electrode, dry for standby;
2) 1.0-5.0 is restrained in bromination 1-vinyl-3-ethyl imidazol(e) and the 0.01-0.05 gram azoisobutyronitrile adding 10-50 milliliter chloroform, stirring at room was warming up to 50-100 ℃ of reaction 1-5 hour after one hour; Product is cooled to room temperature, discards solvent, use dissolve with methanol; In acetone, precipitate then; Suction filtration, it is dry until constant weight to put into vacuum drying oven, obtains gathering bromination 1-vinyl-3-ethyl imidazol(e);
3) 0.1-0.5 being restrained step 2) bromination 1-vinyl-3-ethyl imidazol(e) and the 0.1-0.5 gram pyrrole monomer that gathers that makes adds in the 10-50 ml deionized water successively; Stir; Under the sonicated condition, in 10-30 minute, drip the ammonium persulfate solution 20-60 milliliter of 0.2-0.6 grams per milliliter, continued under the sonicated condition room temperature reaction 1-5 hour; Products therefrom precipitates with excessive p-toluenesulfonic acid solution; Centrifuging, dry in the vacuum drying oven until constant weight, obtain the polypyrrole that poly ion liquid mixes;
4) polypyrrole that the poly ion liquid that 50-100 milligram step 3) is made mixes 1-5 milliliter N; The dinethylformamide dissolving; Sonicated fully disperseed it in one hour, added 50-100 milligram poly 4 vinyl pyridine and 0.1-0.5 milliliter 1 then successively, the 4-dibromobutane; Stir ageing 6-24 hour down at 10-50 ℃, make lotion;
5) the interdigital gold electrode of the ceramic bases of step 1) impregnated in the lotion that step 4) makes 1-5 minute; After lifting taking-up; At 50-150 ℃ of crosslinked quaternary ammoniated 10-20 hour, obtain cationic polyelectrolyte and polypyrrole compound polymer resistor type humidity-sensitive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097980.8A CN102749359B (en) | 2011-04-19 | 2011-04-19 | Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097980.8A CN102749359B (en) | 2011-04-19 | 2011-04-19 | Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102749359A true CN102749359A (en) | 2012-10-24 |
| CN102749359B CN102749359B (en) | 2014-05-21 |
Family
ID=47029721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110097980.8A Expired - Fee Related CN102749359B (en) | 2011-04-19 | 2011-04-19 | Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102749359B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502420A (en) * | 2014-10-01 | 2015-04-08 | 浙江大学 | Humidity-sensitive composite membrane, preparation method of humidity-sensitive composite membrane and humidity sensor |
| CN108195888A (en) * | 2017-12-27 | 2018-06-22 | 长春理工大学 | Impedance type dew cell using the compound wet sensory material of cross-linked polymer and preparation method thereof |
| CN111505065A (en) * | 2020-04-20 | 2020-08-07 | 河北工业大学 | Interdigital counter electrode type flexible touch sensor based on super-capacitor sensing principle and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078704A (en) * | 2007-06-27 | 2007-11-28 | 浙江大学 | Polyelectrolyte / intrinsic conducting polymer composite humidity sensor and its production method |
-
2011
- 2011-04-19 CN CN201110097980.8A patent/CN102749359B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078704A (en) * | 2007-06-27 | 2007-11-28 | 浙江大学 | Polyelectrolyte / intrinsic conducting polymer composite humidity sensor and its production method |
Non-Patent Citations (2)
| Title |
|---|
| REBECA MARCILLA ET AL.: "New Organic Dispersions of Conducting Polymers Using Polymeric Ionic Liquids as Stabilizers", 《MACROMOLECULAR RAPID COMMUNICATIONS》 * |
| Y. LI ET AL.: "Crosslinked and quaternized poly(4-vinylpyridine)/polypyrrole composite as a potential candidate for the detection of low humidity", 《TALANTA》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502420A (en) * | 2014-10-01 | 2015-04-08 | 浙江大学 | Humidity-sensitive composite membrane, preparation method of humidity-sensitive composite membrane and humidity sensor |
| CN108195888A (en) * | 2017-12-27 | 2018-06-22 | 长春理工大学 | Impedance type dew cell using the compound wet sensory material of cross-linked polymer and preparation method thereof |
| CN111505065A (en) * | 2020-04-20 | 2020-08-07 | 河北工业大学 | Interdigital counter electrode type flexible touch sensor based on super-capacitor sensing principle and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102749359B (en) | 2014-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100523799C (en) | Polyelectrolyte / intrinsic conducting polymer composite humidity sensor and its production method | |
| CN101799441A (en) | Polymer resistor type humidity element of water dispersion nano-polyaniline and manufacturing method thereof | |
| CN102279212A (en) | Resistive moisture sensor capable of measuring humidity of low-humidity environment and manufacturing method thereof | |
| CN101871912A (en) | Full-solid potassium ion sensor and preparation method thereof | |
| CN102297895A (en) | Nanometer polyaniline composite surface acoustic wave humidity sensor and production method thereof | |
| Yusuf et al. | Preparation and electrical characterization of polymer electrolytes: A review | |
| CA2564532A1 (en) | Potentiometric electrode with a gradient polymer comprising conductive particles and ionophore molecules | |
| JP2021073471A (en) | Solid electrode and sensor | |
| CN102749359B (en) | Cationic polyelectrolyte-polypyrrole composite polymer resistive-type humidity-sensitive element and manufacturing method thereof | |
| CN105044162B (en) | A kind of polymer-based electric resistance type humidity sensitive element and preparation method thereof | |
| Li et al. | A novel highly reversible humidity sensor based on poly (2-propyn-2-furoate) | |
| CN108398466A (en) | A kind of thin-film capacitor humidity sensor and preparation method thereof | |
| CN101368925A (en) | Poly-pyrrole and metal nanometer particle composite gas sensor and preparation thereof | |
| CN103235010B (en) | Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof | |
| JPS60168044A (en) | Moisture sensitive material | |
| JPS60188835A (en) | Moisture sensitive material | |
| CN201340405Y (en) | Macromolecule resistive-type humidity sensitive element with hyperbranched structure | |
| CN101408522B (en) | Manufacturing method of high molecule electric resistance type humidity sensitive element with super-branched structure | |
| CN101788520A (en) | Polyelectrolyte surface acoustic wave resonance type humidity sensitive element containing silicon and manufacture method thereof | |
| CN1963480A (en) | Polymer graft black carbon composite resistance film gas sensor and manufacturing method of the same | |
| CN201096744Y (en) | A polymer graft carbon black compound resistance film humidity sensitive part | |
| CN101936936B (en) | Solvent water detection element based on conductive macromolecular compound and manufacturing method thereof | |
| CN108195888A (en) | Impedance type dew cell using the compound wet sensory material of cross-linked polymer and preparation method thereof | |
| CN109085207B (en) | Ionic POSS (polyhedral oligomeric silsesquioxane) block copolymer-based humidity sensor and preparation method thereof | |
| CN115819911B9 (en) | Ionic gel and preparation method thereof, and preparation method and application of ionic gel film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20210419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |