CN110739096A - conductive materials for sensor and preparation method thereof - Google Patents
conductive materials for sensor and preparation method thereof Download PDFInfo
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- CN110739096A CN110739096A CN201811225200.1A CN201811225200A CN110739096A CN 110739096 A CN110739096 A CN 110739096A CN 201811225200 A CN201811225200 A CN 201811225200A CN 110739096 A CN110739096 A CN 110739096A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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Abstract
The invention provides conductive materials for sensors and a preparation method thereof, wherein the conductive materials are prepared from the following components, by weight, 21-27 parts of polystyrene, 38-46 parts of a conductive additive, 3-6 parts of hexadecyl trimethyl ammonium bromide, 2-5 parts of ammonium perfluoro caprylate, 1-3 parts of hexadecane, 5-9 parts of 3-methyl-4-isopropyl phenol, 2-8 parts of a dispersing agent, 11-15 parts of nano magnesium hydroxide, 1-3 parts of 2,6- (1-phenyl) ethyl phenol, 1-2 parts of dilauryl thiomalonate and 28-32 parts of unbleached softwood sulfate slurry.
Description
Technical Field
The invention relates to the field of electronic materials, in particular to conductive materials for a sensor and a preparation method thereof.
Background
The conductive paper material is kinds of functional paper with excellent performance, and has good application value in multiple fields such as sensing materials, heating materials, electrochemical materials and the like.
Disclosure of Invention
The technical problem to be solved is as follows:
the invention aims to provide conductive materials for a sensor and a preparation method thereof, and the prepared conductive materials show good conductive performance, conductive performance stability and mechanical properties.
The technical scheme is as follows:
the invention provides conductive materials for a sensor, which are prepared from the following components in parts by weight:
21-27 parts of polystyrene,
38-46 parts of conductive additive,
3-6 parts of hexadecyl trimethyl ammonium bromide,
2-5 parts of ammonium perfluorooctanoate,
1-3 parts of hexadecane,
5-9 parts of 3-methyl-4-isopropyl phenol,
2-8 parts of dispersant,
11-15 parts of nano magnesium hydroxide,
1-3 parts of 2,6- (1-phenyl) ethylphenol,
1-2 parts of dilauryl sulfo-malonate,
28-32 parts of unbleached softwood kraft pulp.
Preferably, the kinds of conductive materials for the sensor, the conductive additive is prepared by the following preparation method:
dissolving 20.65g of copper powder in 50mL of Tris-HCl buffer solution with pH9.1 containing trisodium citrate, introducing nitrogen for 15min, heating to 70-90 ℃ under the condition of keeping nitrogen introduction, carrying out heat preservation reaction for 1-2h, taking out, cleaning, irradiating for 24h under natural light to obtain citric acid stable copper ions, dissolving the citric acid stable copper ions in 1mmoL/L of trifluoromethane ethanol solution under the ultrasonic condition, carrying out ultrasonic reaction for 5min at 70 ℃, standing for 24h, taking out, cleaning, and drying by using nitrogen to obtain copper particles with surface assembled molecular membranes, namely the conductive material.
Preferably, in the method for preparing the citric acid-stable copper ions, the concentration of trisodium citrate in the Tris-HCl buffer solution is 10 wt%.
Preferably, in the preparation method of the citric acid stable copper ions, the power of the ultrasonic reaction is 550W, and the ultrasonic frequency is 40 kHz.
Preferably, the conductive materials for the sensor, the dispersant is a mixture of sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to a weight ratio of 1: 1.
The invention also provides a preparation method of conductive materials for sensors, which comprises the following preparation steps:
(1) adding 21-27 parts of polystyrene, 28-32 parts of unbleached softwood sulfate pulp, 38-46 parts of conductive additive, 3-6 parts of cetyl trimethyl ammonium bromide, 2-5 parts of perfluoro ammonium caprylate, 1-3 parts of hexadecane and 2-8 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then adding 5-9 parts of 3-methyl-4-isopropyl phenol and 11-15 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 1-3 parts of 2,6- (1-phenyl) ethyl phenol and 1-2 parts of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
Has the advantages that:
(1) the invention self-prepares the copper particles with the surface assembled molecular film, improves the compatibility of the copper particles with a material system, and greatly improves the conductivity of the material.
(2) The composite conductive paper material prepared by the invention has stable conductivity, small surface resistance value, high combination degree of components and good mechanical property.
(3) The preparation method is simple and easy to operate, has low cost, can meet the application requirements, and has great practical value.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the invention in any way.
The conductive additives of examples 1 to 5 and comparative example 1 were prepared by the following preparation methods:
dissolving 20.65g of copper powder in 50ml of Tris-HCl buffer solution with pH9.1 containing trisodium citrate, wherein the concentration of the trisodium citrate is 10 wt%, introducing nitrogen for 15min, heating to 70-90 ℃ under the condition of keeping nitrogen introduction, carrying out heat preservation reaction for 1-2h, taking out, cleaning, irradiating for 24h under natural light to obtain citric acid stable copper ions, dissolving the citric acid stable copper ions in 1mmoL/L of trifluoromethane ethanol solution under the ultrasonic condition, continuing ultrasonic reaction for 5min at 70 ℃, wherein the power of the ultrasonic reaction is 550W, the ultrasonic frequency is 40kHz, standing for 24h, taking out, cleaning, and drying by using nitrogen to obtain copper particles with surface-assembled molecular membranes, namely the conductive material.
Example 1
(1) Adding 27 parts of polystyrene, 28 parts of unbleached softwood sulfate pulp, 46 parts of conductive additive, 3 parts of hexadecyl trimethyl ammonium bromide, 5 parts of ammonium perfluorooctanoate, 1 part of hexadecane and 8 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then adding 5 parts of 3-methyl-4-isopropyl phenol and 15 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 1 part of 2,6- (1-phenyl) ethyl phenol and 2 parts of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
Example 2
(1) Adding 21 parts of polystyrene, 32 parts of unbleached softwood sulfate pulp, 38 parts of conductive additive, 6 parts of hexadecyl trimethyl ammonium bromide, 2 parts of ammonium perfluorooctanoate, 3 parts of hexadecane and 2 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then adding 9 parts of 3-methyl-4-isopropyl phenol and 11 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 3 parts of 2,6- (1-phenyl) ethyl phenol and 1 part of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
Example 3
(1) Adding 25 parts of polystyrene, 29 parts of unbleached softwood sulfate pulp, 44 parts of conductive additive, 4 parts of hexadecyl trimethyl ammonium bromide, 4 parts of ammonium perfluorooctanoate, 1.5 parts of hexadecane and 6 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then 6 parts of 3-methyl-4-isopropyl phenol and 14 parts of nano magnesium hydroxide are added and mixed for 50min, and then 1.5 parts of 2,6- (1-phenyl) ethyl phenol and 1.8 parts of dilauryl thiomalonate are added and mixed for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
Example 4
(1) Adding 23 parts of polystyrene, 31 parts of unbleached softwood sulfate pulp, 40 parts of conductive additive, 5 parts of hexadecyl trimethyl ammonium bromide, 3 parts of ammonium perfluorooctanoate, 2.5 parts of hexadecane and 4 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then 8 parts of 3-methyl-4-isopropyl phenol and 12 parts of nano magnesium hydroxide are added and mixed for 50min, and then 2.5 parts of 2,6- (1-phenyl) ethyl phenol and 1.2 parts of dilauryl thiomalonate are added and mixed for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2Drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensorA material.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
Example 5
(1) Adding 23-25 parts of polystyrene, 29-31 parts of unbleached softwood kraft pulp, 40-44 parts of conductive additive, 4-5 parts of cetyl trimethyl ammonium bromide, 3-4 parts of perfluoro ammonium caprylate, 1.5-2.5 parts of hexadecane and 4-6 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then 6-8 parts of 3-methyl-4-isopropyl phenol and 12-14 parts of nano magnesium hydroxide are added and mixed for 50min, and then 1.5-2.5 parts of 2,6- (1-phenyl) ethyl phenol and 1.2-1.8 parts of dilauryl sulfo-malonate are added and mixed for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
Comparative example 1
This comparative example differs from example 1 in that the dispersant is sodium polyacrylate with a molecular weight of 3000. Specifically, the method comprises the following steps:
(1) adding 27 parts of polystyrene, 28 parts of unbleached softwood sulfate pulp, 46 parts of conductive additive, 3 parts of hexadecyl trimethyl ammonium bromide, 5 parts of ammonium perfluorooctanoate, 1 part of hexadecane and 8 parts of sodium polyacrylate with the molecular weight of 3000 into a reaction kettle, and mixing for 40 min;
(2) then adding 5 parts of 3-methyl-4-isopropyl phenol and 15 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 1 part of 2,6- (1-phenyl) ethyl phenol and 2 parts of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
Comparative example 2
This comparative example differs from example 1 in that the conductive material is copper powder. Specifically, the method comprises the following steps:
(1) adding 27 parts of polystyrene, 28 parts of unbleached softwood sulfate pulp, 46 parts of copper powder, 3 parts of hexadecyl trimethyl ammonium bromide, 5 parts of perfluoro ammonium caprylate, 1 part of hexadecane and 8 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then adding 5 parts of 3-methyl-4-isopropyl phenol and 15 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 1 part of 2,6- (1-phenyl) ethyl phenol and 2 parts of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
The dispersant is prepared by mixing sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 according to the weight ratio of 1: 1.
The materials prepared in examples 1-5 and comparative examples 1-2 were subjected to a performance test, the surface resistivity Rs test was determined with reference to GJB2604-1996, and the tensile strength was determined using a ZLD-300 electronic tensile tester, and the test results are shown in the following table:
TABLE 1
According to the test results, the conductive material for the sensor prepared by the method disclosed by the invention has good conductive performance and mechanical properties. The preparation method in example 5 is the best preparation method in the present invention, and the surface resistivity of the conductive material prepared according to the preparation method in example 5 of the present invention is only 94 Ω · cm after standing for 100 hours-2The conductive performance of the conductive material keeps constant stability, and the tensile strength reaches 79.34 N.m.g-1。
According to the invention, sodium polyacrylate with molecular weight of 1000 and sodium polyacrylate with molecular weight of 3000 are compounded into the dispersing agent, and compared with sodium polyacrylate with molecular weight of single , the composite dispersing agent can better change the surface property of powder, reduce the viscosity of slurry and prevent particles from agglomerating, thereby improving the rheological property of a system and the strength of the material.
The invention prepares copper particles with surface assembled molecular films, and the surface of the copper particles is assembled with a film containing-CF3The film of (2) improves the compatibility of the material system, provides conductive properties, and the material has higher conductive capability at high voltage.
Claims (6)
1, kinds of conductive material for sensor, which is characterized in that the conductive material is prepared by the following components by weight:
21-27 parts of polystyrene,
38-46 parts of conductive additive,
3-6 parts of hexadecyl trimethyl ammonium bromide,
2-5 parts of ammonium perfluorooctanoate,
1-3 parts of hexadecane,
5-9 parts of 3-methyl-4-isopropyl phenol,
2-8 parts of dispersant,
11-15 parts of nano magnesium hydroxide,
1-3 parts of 2,6- (1-phenyl) ethylphenol,
1-2 parts of dilauryl sulfo-malonate,
28-32 parts of unbleached softwood kraft pulp.
2. The conductive material for sensor according to claim 1, wherein the conductive additive is prepared by the following preparation method:
dissolving 20.65g of copper powder in 50mL of Tris-HCl buffer solution with pH9.1 containing trisodium citrate, introducing nitrogen for 15min, heating to 70-90 ℃ under the condition of keeping nitrogen introduction, carrying out heat preservation reaction for 1-2h, taking out, cleaning, irradiating for 24h under natural light to obtain citric acid stable copper ions, dissolving the citric acid stable copper ions in 1mmoL/L of trifluoromethane ethanol solution under the ultrasonic condition, carrying out ultrasonic reaction for 5min at 70 ℃, standing for 24h, taking out, cleaning, and drying by using nitrogen to obtain copper particles with surface assembled molecular membranes, namely the conductive material.
3. The method of claim 2, wherein the concentration of trisodium citrate in the Tris-HCl buffer is 10 wt%.
4. The method of claim 2, wherein the ultrasonic reaction power is 550W and the ultrasonic frequency is 40 kHz.
5. The conductive material for sensor of claim 1, wherein the dispersant is a mixture of 1000 molecular weight sodium polyacrylate and 3000 molecular weight sodium polyacrylate at a weight ratio of 1: 1.
6, A method for preparing a conductive material for a sensor, comprising the steps of:
(1) adding 21-27 parts of polystyrene, 28-32 parts of unbleached softwood sulfate pulp, 38-46 parts of conductive additive, 3-6 parts of cetyl trimethyl ammonium bromide, 2-5 parts of perfluoro ammonium caprylate, 1-3 parts of hexadecane and 2-8 parts of dispersing agent into a reaction kettle, and mixing for 40 min;
(2) then adding 5-9 parts of 3-methyl-4-isopropyl phenol and 11-15 parts of nano magnesium hydroxide, continuously mixing for 50min, then adding 1-3 parts of 2,6- (1-phenyl) ethyl phenol and 1-2 parts of dilauryl thiomalonate, and mixing for 20 min;
(3) transferring the mixed material to a paper former to make the quantitative of 80g/m2And drying the paper sheet in a glazing machine at 105 ℃ to obtain the conductive material for the sensor.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063307A (en) * | 1992-06-17 | 1994-01-11 | Fuji Electric Co Ltd | Humidity sensor |
| CN105350400A (en) * | 2015-11-11 | 2016-02-24 | 无锡英普林纳米科技有限公司 | Conductive nano-paper |
| CN105931753A (en) * | 2016-04-29 | 2016-09-07 | 中山大学 | Preparation method of foldable flexible self-supporting silver conductive membrane with contrasting pyramid depression array |
| CN106245438A (en) * | 2016-08-03 | 2016-12-21 | 代长华 | A kind of NEW TYPE OF COMPOSITE conductive paper and preparation method thereof |
| CN107419607A (en) * | 2017-09-30 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of High Strength Carbon Nanotubes conductive paper and preparation method |
| CN107964830A (en) * | 2017-11-17 | 2018-04-27 | 苏州甫众塑胶有限公司 | A kind of preparation method of composite conductive paper |
-
2018
- 2018-10-20 CN CN201811225200.1A patent/CN110739096B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063307A (en) * | 1992-06-17 | 1994-01-11 | Fuji Electric Co Ltd | Humidity sensor |
| CN105350400A (en) * | 2015-11-11 | 2016-02-24 | 无锡英普林纳米科技有限公司 | Conductive nano-paper |
| CN105931753A (en) * | 2016-04-29 | 2016-09-07 | 中山大学 | Preparation method of foldable flexible self-supporting silver conductive membrane with contrasting pyramid depression array |
| CN106245438A (en) * | 2016-08-03 | 2016-12-21 | 代长华 | A kind of NEW TYPE OF COMPOSITE conductive paper and preparation method thereof |
| CN107419607A (en) * | 2017-09-30 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of High Strength Carbon Nanotubes conductive paper and preparation method |
| CN107964830A (en) * | 2017-11-17 | 2018-04-27 | 苏州甫众塑胶有限公司 | A kind of preparation method of composite conductive paper |
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