CN109100039A - A kind of flexibility temperature sensor and preparation method thereof based on carbon nano tube epoxy resin laminated film - Google Patents
A kind of flexibility temperature sensor and preparation method thereof based on carbon nano tube epoxy resin laminated film Download PDFInfo
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- CN109100039A CN109100039A CN201811038623.2A CN201811038623A CN109100039A CN 109100039 A CN109100039 A CN 109100039A CN 201811038623 A CN201811038623 A CN 201811038623A CN 109100039 A CN109100039 A CN 109100039A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 178
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 178
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 170
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 170
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 87
- 239000010408 film Substances 0.000 claims abstract description 62
- 230000009975 flexible effect Effects 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 49
- 239000010409 thin film Substances 0.000 claims abstract description 36
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 46
- 239000000843 powder Substances 0.000 claims description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 14
- 239000010931 gold Substances 0.000 claims description 12
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 7
- 239000002048 multi walled nanotube Substances 0.000 claims description 7
- 229920001721 polyimide Polymers 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000003760 magnetic stirring Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
- G01K7/223—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor characterised by the shape of the resistive element
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to temperature sensor technology fields, more particularly to a kind of flexibility temperature sensor and preparation method thereof based on carbon nano tube epoxy resin laminated film, the flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including flexible base board, a pair of of the metal interdigital electrode being sputtered on the flexible base board and one layer of compound temperature-sensitive thin film of carbon nano tube epoxy resin coated on the interdigital electrode top of the metal.Wherein metal interdigital electrode and the flexibility temperature-sensitive thin film constitute the temperature sensitive unit of sensor；Using interdigitated electrode structure, the resistance value of the compound temperature-sensitive thin film of carbon nano tube epoxy resin is greatly lowered, to reduce interference of the noise to measuring signal, improves the reliability and stability of sensor.Using the compound temperature-sensitive thin film of carbon nano tube epoxy resin and flexible base board, make sensor that there is good flexibility, it can be achieved that sensor micromation, widen application range, and this sensor structure is simple, it is at low cost, it can be achieved that scale of mass production.
Description
Technical field
The present invention relates to temperature sensor technology fields, and in particular to one kind is based on carbon nano tube epoxy resin laminated film
Flexibility temperature sensor and preparation method thereof.
Background technique
With the development of society, the mankind are really realized by wearable mode to the real-time, quasi- of health, environmental information etc.
True acquisition becomes a kind of trend, and flexible intelligent senser element is expected to meet human body real time information acquisition by wearable mode,
The fields such as treatment, physiological health monitoring, environmental monitoring, human-computer interaction, aerospace are monitored in future medicine to play a significant role.
The one kind of flexibility temperature sensor as flexible intelligent sensor, has important application value in above-mentioned field.
However, most of sensing unit of temperature sensor is all thermistor or thermocouple at present, in addition also some are sharp
It is made of photoelectric effect and pyroelectric effect.Application of these traditional temperature sensors in above-mentioned field has greatly limitation
Property.For flexibility temperature sensor, at present due to material, the reason of structure etc., relative to traditional thermoelectricity
The temperature sensors such as even, flexibility temperature sensor in terms of obviously there is also insufficient.
Summary of the invention
It is a kind of multiple based on carbon nano tube epoxy resin it is an object of the present invention in view of the deficiencies of the prior art, providing
The flexibility temperature sensor of film is closed, should be had based on the flexibility temperature sensor of carbon nano tube epoxy resin laminated film flexible
Property good, high reliablity, stability it is good, it can be achieved that micromation the advantages of.
The second object of the present invention is in view of the deficiencies of the prior art, to provide a kind of multiple based on carbon nano tube epoxy resin
Close the preparation method of the flexibility temperature sensor of film.
One of to achieve the goals above, the present invention adopts the following technical scheme:
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including flexible base board, plating are provided
A pair of of the metal interdigital electrode being formed on the flexible base board and one layer of carbon coated on the interdigital electrode top of the metal
The nanometer compound temperature-sensitive thin film of tube epoxy resin.
The material of the flexible base board is polyimides；The metal interdigital electrode is the gold that one of Cu or Au are formed
Belong to the alloy-layer of layer or two kinds of formation.
The thickness of the flexible base board is set as 0.01mm~1mm；The thickness of the metal interdigital electrode is set as
0.01mm~0.1mm；The thickness of the compound temperature-sensitive thin film of carbon nano tube epoxy resin is set as 0.05mm~0.2mm.
Carbon nanotube in the compound temperature-sensitive thin film of carbon nano tube epoxy resin is multi-walled carbon nanotube.
To achieve the goals above two, the present invention adopts the following technical scheme:
A kind of preparation method of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film is provided, it includes
Following steps:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy of certain mass ratio
Resin；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into acetone soln and is mixed
After even, then ultrasonic disperse is carried out, obtains mixture；Then epoxy resin weighed in step 1 is poured into mixture again, then
Ultrasonic disperse is carried out, scattered carbon nano tube epoxy resin compound is obtained；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into vacuum tank, to remove degassing
Bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin composite coated of bubble will be removed to plating
On the flexible base board for having metal interdigital electrode, after then being solidified, obtain described compound based on carbon nano tube epoxy resin
The flexibility temperature sensor of film.
In above-mentioned technical proposal, in the step 1, the mass ratio of the carbon nanotube powder and the epoxy resin is 1
~10:100；
In the step 2, carbon nanotube powder is put into acetone soln after mixing, supersonic cell is placed into
Ultrasonic disperse 20min~40min is carried out in grinder, obtains mixture；Then epoxy resin weighed in step 1 is fallen again
Enter in mixture, places into progress ultrasonic disperse 20min~40min in supersonic cell pulverizer, obtain scattered carbon and receive
Mitron epoxy resin composite.
In above-mentioned technical proposal, in the step 3, the baking temperature is 80 DEG C~100 DEG C, and the baking time is
1h~3h；
In the step 4, the mass ratio of the curing agent and the carbon nano tube epoxy resin compound is 30~35:
100；The stirring stirs 3min~8min to be put into magnetic stirring apparatus.
In above-mentioned technical proposal, in the step 5, the carbon nano tube epoxy resin compound after stirring is put into vacuum
30min~50min in case, to remove bubble；
In the step 6, the carbon nano tube epoxy resin compound for removing bubble is coated to plating by wet film maker
On the flexible base board for having metal interdigital electrode, then after 75 DEG C~85 DEG C solidification 2h~4h, or at room temperature solidify 46h~
After 50h, the flexibility temperature sensor based on carbon nano tube epoxy resin laminated film is obtained.
In above-mentioned technical proposal, the obtained flexibility temperature sensor based on carbon nano tube epoxy resin laminated film
Temperature-sensing property is non-linear temperature-sensing property.
In above-mentioned technical proposal, the different sensors being prepared under same recipe, technique and dimensional parameters are in same temperature
Resistance value under degree may be different, provides a kind of experiment-transformation approach, obtains one of sensing by experiment and data processing
Then the temperature-sensing property characteristic equation of device is converted to other under same recipe, technique and dimensional parameters by this method and makes
The temperature-sensing property characteristic equation of standby obtained sensor, detailed process is as follows for experiment-transformation approach:
1) different sensors being prepared under same recipe, technique and dimensional parameters are numbered: 0,1,2,
3......；
2) No. 0 sensor is tested, detects its resistance value variation with temperature data, its temperature is obtained by data processing
Quick property feature equation are as follows:
Wherein: a, b, c are the coefficient constant of equation；T is real time temperature；R0For the real-time resistance value variable of No. 0 sensor；RA0
For resistance value of No. 0 sensor at temperature A, our temperature A are referred to as the temperature reference of No. 0 sensor, i.e., the resistance value of No. 1 sensor
Change rate is demarcated at temperature A；
3) sensor to be converted is set as No. i (i=1,2,3......), and detecting its resistance value at temperature B is RBi；
4) equation (1) is deformed:
It is R that resistance value of No. 0 sensor at temperature B, which is calculated, by equation (2)B0；
5) then temperature-sensing property characteristic equation of the i sensor at temperature reference B are as follows:
Wherein, RiFor the real-time resistance value variable of i sensor；
Compared with prior art, beneficial effect is the present invention:
(1) a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film provided by the invention, including
Flexible base board, a pair of of the metal interdigital electrode being sputtered on the flexible base board and be coated on the metal interdigital electrode on
One layer of compound temperature-sensitive thin film of carbon nano tube epoxy resin on surface.Wherein, the compound temperature-sensitive thin film of carbon nano tube epoxy resin has
It is flexible well, the temperature sensitive unit of metal interdigital electrode and flexibility temperature-sensitive thin film composition sensor；Using interdigitated electrode structure,
The resistance value of the compound temperature-sensitive thin film of carbon nano tube epoxy resin is greatly lowered, so that interference of the noise to measuring signal is reduced,
Improve the reliability and stability of sensor.Using the compound temperature-sensitive thin film of carbon nano tube epoxy resin and flexible base board, make to pass
Sensor has good flexibility, and can realize the micromation of sensor, has widened the application range of this sensor, and this significantly
Sensor structure is simple, low in cost, it can be achieved that scale of mass production.
(2) a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film provided by the invention, work
Make principle are as follows: film will be formed in carbon nano tube epoxy resin composite coated to the flexible base board for being coated with metal interdigital electrode,
To constitute the temperature sensitive unit of sensor, using interdigitated electrode structure, the resistance of film can be made significantly to reduce, be improved with this
The stability and reliability of detection.When the temperature of sensor surface is transmitted on the compound temperature-sensitive thin film of carbon nano tube epoxy resin
When, the conductivity of the compound temperature-sensitive thin film of carbon nano tube epoxy resin changes therewith, leads to the compound temperature-sensitive of carbon nano tube epoxy resin
The resistance of film changes, by the resistance sizes for measuring interdigital electrode both ends, so that it may reflect the size of temperature.
(3) preparation of a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film provided by the invention
Method, have method it is simple, production cost is low, and can be suitable for industrialization large-scale production the characteristics of.
Detailed description of the invention
Fig. 1 is that a kind of structure of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film of the invention is shown
It is intended to.
Fig. 2 is a kind of side of facing of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film of the invention
To cut open and show structural schematic diagram.
Fig. 3 is a kind of vertical view side of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film of the invention
To cut open and show structural schematic diagram.
Fig. 4 is a kind of flexible temperature sensing based on carbon nano tube epoxy resin laminated film of the embodiment of the present invention 2
The temperature-sensing property ladder diagram of the flexibility temperature sensor of carbon nano tube epoxy resin laminated film obtained in the preparation method of device.
Fig. 5 is a kind of flexible temperature sensing based on carbon nano tube epoxy resin laminated film of the embodiment of the present invention 2
The non-linear temperature-sensing property of the flexibility temperature sensor of carbon nano tube epoxy resin laminated film obtained in the preparation method of device
Matched curve.
Appended drawing reference:
Flexible base board 1；
Metal interdigital electrode 2；
The compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
Embodiment 1.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.Wherein, metal interdigital electrode 2 and carbon nano tube epoxy resin are compound
The temperature sensitive unit of the composition sensor of temperature-sensitive thin film 3.Using interdigitated electrode structure, make the compound temperature-sensitive thin film of carbon nano tube epoxy resin
3 resistance value is greatly lowered, to reduce interference of the noise to measuring signal, improves the reliability and stability of sensor.
Embodiment 2.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.
In the present embodiment, the material of flexible base board 1 is polyimides；Wherein, the thickness of flexible base board 1 is set as
0.013mm.
In the present embodiment, metal interdigital electrode 2 is the alloy-layer that Cu and Au is formed.In the present embodiment, metal interdigital electrode 2
With a thickness of 0.013mm, wherein Cu layers with a thickness of 0.012mm, Au layers with a thickness of 0.001mm.
In the present embodiment, the thickness of the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is set as 0.2mm.
In the present embodiment, the carbon nanotube in the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is multi-walled carbon nanotube.
A kind of preparation method of above-mentioned flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including such as
Lower step:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing carbon nanotube powder and epoxy resin；The present embodiment
In, the mass ratio of carbon nanotube powder and epoxy resin is 5:100；Wherein, carbon nanotube powder 1g, epoxy resin 20g；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into 50mL acetone soln and is mixed
After closing uniformly, progress ultrasonic disperse 30min in supersonic cell pulverizer is placed into, mixture is obtained；Then again by step 1
In weighed epoxy resin pour into mixture, place into supersonic cell pulverizer progress ultrasonic disperse 30min, divided
The carbon nano tube epoxy resin compound dissipated；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；In the present embodiment, baking temperature is 90 DEG C, baking time 2h；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred 5min；In the present embodiment, the mass ratio of curing agent and carbon nano tube epoxy resin compound is 33:100；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into 40min in vacuum tank, to remove
Remove bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin compound for removing bubble is passed through wet film
Preparing device is coated on the flexible base board for being coated with metal interdigital electrode, after then solidifying 48h at room temperature, obtains described be based on
The flexibility temperature sensor of carbon nano tube epoxy resin laminated film.
Wherein, the temperature-sensing property of the obtained flexibility temperature sensor based on carbon nano tube epoxy resin laminated film is
Non-linear temperature-sensing property.
The present embodiment is prepared for two flexibility temperature sensors altogether, provides a kind of experiment-transformation approach, passes through experiment and data
Processing obtains the temperature-sensing property characteristic equation of one of sensor, is then converted to other by this method and matches identical
The temperature-sensing property characteristic equation for the sensor being prepared under side, technique and dimensional parameters, experiment-transformation approach detailed process is such as
Under:
1) different sensors being prepared under same recipe, technique and dimensional parameters are numbered: 0,1,2,
3......；
2) No. 0 sensor is tested, detects its resistance value variation with temperature data, its temperature is obtained by data processing
Quick property feature equation are as follows:
Wherein: a, b, c are the coefficient constant of equation；T is real time temperature；R0For the real-time resistance value variable of No. 0 sensor；RA0
For resistance value of No. 0 sensor at temperature A, our temperature A are referred to as the temperature reference of No. 0 sensor, i.e., the resistance value of No. 1 sensor
Change rate is demarcated at temperature A；
3) sensor to be converted is set as No. i (i=1,2,3......), and detecting its resistance value at temperature B is RBi；
4) equation (1) is deformed:
It is R that resistance value of No. 0 sensor at temperature B, which is calculated, by equation (2)B0；
5) then temperature-sensing property characteristic equation of the i sensor at temperature reference B are as follows:
Wherein, RiFor the real-time resistance value variable of i sensor；
Embodiment 3.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.
In the present embodiment, the material of flexible base board 1 is polyimides；Wherein, the thickness of flexible base board 1 is set as
0.01mm.
In the present embodiment, metal interdigital electrode 2 is the metal layer that Cu is formed.In the present embodiment, the thickness of metal interdigital electrode 2
Degree is 0.01mm.
In the present embodiment, the thickness of the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is set as 0.05mm.
In the present embodiment, the carbon nanotube in the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is multi-walled carbon nanotube.
A kind of preparation method of above-mentioned flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including such as
Lower step:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy of certain mass ratio
Resin；In the present embodiment, the mass ratio of carbon nanotube powder and epoxy resin is 1:100；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into acetone soln and is mixed
After even, progress ultrasonic disperse 20min in supersonic cell pulverizer is placed into, mixture is obtained；Then will claim in step 1 again
The epoxy resin taken pours into mixture, places into progress ultrasonic disperse 20min in supersonic cell pulverizer, obtains scattered
Carbon nano tube epoxy resin compound；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；In the present embodiment, baking temperature is 80 DEG C, baking time 3h；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred 3min；In the present embodiment, the mass ratio of curing agent and carbon nano tube epoxy resin compound is 30:100；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into 30min in vacuum tank, to remove
Remove bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin compound for removing bubble is passed through wet film
Preparing device is coated on the flexible base board for being coated with metal interdigital electrode, then after 80 DEG C of solidification 3h, is obtained described based on carbon
The flexibility temperature sensor of nanometer tube epoxy resin laminated film.
Embodiment 4.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.
In the present embodiment, the material of flexible base board 1 is polyimides；Wherein, the thickness of flexible base board 1 is set as 1mm.
In the present embodiment, metal interdigital electrode 2 is the metal layer that Au is formed.In the present embodiment, the thickness of metal interdigital electrode 2
Degree is 0.1mm.
In the present embodiment, the thickness of the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is set as 0.1mm.
In the present embodiment, the carbon nanotube in the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is multi-walled carbon nanotube.
A kind of preparation method of above-mentioned flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including such as
Lower step:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy of certain mass ratio
Resin；In the present embodiment, the mass ratio of carbon nanotube powder and epoxy resin is 10:100；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into acetone soln and is mixed
After even, progress ultrasonic disperse 40min in supersonic cell pulverizer is placed into, mixture is obtained；Then will claim in step 1 again
The epoxy resin taken pours into mixture, places into progress ultrasonic disperse 40min in supersonic cell pulverizer, obtains scattered
Carbon nano tube epoxy resin compound；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；In the present embodiment, baking temperature is 100 DEG C, baking time 3h；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred 8min；In the present embodiment, the mass ratio of curing agent and carbon nano tube epoxy resin compound is 35:100；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into 50min in vacuum tank, to remove
Remove bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin compound for removing bubble is passed through wet film
Preparing device is coated on the flexible base board for being coated with metal interdigital electrode, then after 75 DEG C of solidification 4h, is obtained described based on carbon
The flexibility temperature sensor of nanometer tube epoxy resin laminated film.
Embodiment 5.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.
In the present embodiment, the material of flexible base board 1 is polyimides；Wherein, the thickness of flexible base board 1 is set as 0.5mm.
In the present embodiment, metal interdigital electrode 2 is the alloy-layer that Cu and Au is formed.In the present embodiment, metal interdigital electrode 2
With a thickness of 0.06mm, wherein Cu layers with a thickness of 0.05mm, Au layers with a thickness of 0.01mm.
In the present embodiment, the thickness of the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is set as 0.15mm.
In the present embodiment, the carbon nanotube in the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is multi-walled carbon nanotube.
A kind of preparation method of above-mentioned flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including such as
Lower step:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy of certain mass ratio
Resin；In the present embodiment, the mass ratio of carbon nanotube powder and epoxy resin is 8:100；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into acetone soln and is mixed
After even, progress ultrasonic disperse 25min in supersonic cell pulverizer is placed into, mixture is obtained；Then will claim in step 1 again
The epoxy resin taken pours into mixture, places into progress ultrasonic disperse 25min in supersonic cell pulverizer, obtains scattered
Carbon nano tube epoxy resin compound；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；In the present embodiment, baking temperature is 85 DEG C, baking time 2.5h；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred 4min；In the present embodiment, the mass ratio of curing agent and carbon nano tube epoxy resin compound is 31:100；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into 35min in vacuum tank, to remove
Remove bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin compound for removing bubble is passed through wet film
Preparing device is coated on the flexible base board for being coated with metal interdigital electrode, then after 85 DEG C of solidification 2h, is obtained described based on carbon
The flexibility temperature sensor of nanometer tube epoxy resin laminated film.
Embodiment 6.
A kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, as shown in Figure 1 to Figure 3, including
Flexible base board 1, a pair of of the metal interdigital electrode 2 being sputtered on flexible base board 1 and be coated on 2 upper surface of metal interdigital electrode
The compound temperature-sensitive thin film 3 of one layer of carbon nano tube epoxy resin.
In the present embodiment, the material of flexible base board 1 is polyimides；Wherein, the thickness of flexible base board 1 is set as
0.013mm.
In the present embodiment, metal interdigital electrode 2 is the alloy-layer that Cu and Au is formed.In the present embodiment, metal interdigital electrode 2
With a thickness of 0.013mm, wherein Cu layers with a thickness of 0.012mm, Au layers with a thickness of 0.001mm.
In the present embodiment, the thickness of the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is set as 0.09mm.
In the present embodiment, the carbon nanotube in the compound temperature-sensitive thin film 3 of carbon nano tube epoxy resin is multi-walled carbon nanotube.
A kind of preparation method of above-mentioned flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, including such as
Lower step:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy of certain mass ratio
Resin；In the present embodiment, the mass ratio of carbon nanotube powder and epoxy resin is 2:100；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder being put into acetone soln and is mixed
After even, progress ultrasonic disperse 35min in supersonic cell pulverizer is placed into, mixture is obtained；Then will claim in step 1 again
The epoxy resin taken pours into mixture, places into progress ultrasonic disperse 35min in supersonic cell pulverizer, obtains scattered
Carbon nano tube epoxy resin compound；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotoroidal
Extra acetone in oxygen resin complexes；In the present embodiment, baking temperature is 95 DEG C, baking time 1.5h；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and
It is stirred 7min；In the present embodiment, the mass ratio of curing agent and carbon nano tube epoxy resin compound is 34:100；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into 45min in vacuum tank, to remove
Remove bubble；
Step 6: preparing flexibility temperature sensor: the carbon nano tube epoxy resin compound for removing bubble is passed through wet film
Preparing device is coated on the flexible base board for being coated with metal interdigital electrode, after then solidifying 46h~50h at room temperature, obtains institute
State the flexibility temperature sensor based on carbon nano tube epoxy resin laminated film.
Claims (10)
1. a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film, it is characterised in that: including flexible base
Plate, a pair of of the metal interdigital electrode being sputtered on the flexible base board and coated on the interdigital electrode top of the metal
One layer of compound temperature-sensitive thin film of carbon nano tube epoxy resin.
2. a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 1,
Be characterized in that: the material of the flexible base board is polyimides；The metal interdigital electrode is what one of Cu or Au were formed
Metal layer or the alloy-layer of two kinds of formation.
3. a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 1,
Be characterized in that: the thickness of the flexible base board is set as 0.01mm~1mm；The thickness of the metal interdigital electrode is set as
0.01mm~0.1mm；The thickness of the compound temperature-sensitive thin film of carbon nano tube epoxy resin is set as 0.05mm~0.2mm.
4. a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 1,
Be characterized in that: the carbon nanotube in the compound temperature-sensitive thin film of carbon nano tube epoxy resin is multi-walled carbon nanotube.
5. a kind of flexible temperature biography based on carbon nano tube epoxy resin laminated film described in Claims 1-4 any one
The preparation method of sensor, it is characterised in that: it the following steps are included:
Step 1: weighing carbon nanotube powder and epoxy resin: weighing the carbon nanotube powder and epoxy resin of certain mass ratio；
Step 2: preparing carbon nano tube epoxy resin compound: carbon nanotube powder is put into acetone soln after mixing,
Ultrasonic disperse is carried out again, obtains mixture；Then epoxy resin weighed in step 1 is poured into mixture again, then is surpassed
Sound dispersion, obtains scattered carbon nano tube epoxy resin compound；
Step 3: baking: being toasted to scattered carbon nano tube epoxy resin compound, to remove carbon nanotube epoxy tree
Extra acetone in fat complexes；
Step 4: curing agent is added: curing agent is added in the carbon nano tube epoxy resin compound after removing acetone, and carries out
Stirring；
Step 5: bubble removing: the carbon nano tube epoxy resin compound after stirring being put into vacuum tank, to remove bubble；
Step 6: preparing flexibility temperature sensor: by the carbon nano tube epoxy resin composite coated for removing bubble to being coated with gold
On the flexible base board for belonging to interdigital electrode, after then being solidified, obtain described based on carbon nano tube epoxy resin laminated film
Flexibility temperature sensor.
6. a kind of system of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 5
Preparation Method, it is characterised in that: in the step 1, the mass ratio of the carbon nanotube powder and the epoxy resin is 1~10:
100；
In the step 2, carbon nanotube powder is put into acetone soln after mixing, places into supersonic cell crushing
Ultrasonic disperse 20min~40min is carried out in device, obtains mixture；Then epoxy resin weighed in step 1 is poured into again mixed
It closes in object, places into progress ultrasonic disperse 20min~40min in supersonic cell pulverizer, obtain scattered carbon nanotube
Epoxy resin composite.
7. a kind of system of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 5
Preparation Method, it is characterised in that: in the step 3, the baking temperature is 80 DEG C~100 DEG C, the baking time be 1h~
3h；
In the step 4, the mass ratio of the curing agent and the carbon nano tube epoxy resin compound is 30~35:100；
The stirring stirs 3min~8min to be put into magnetic stirring apparatus.
8. a kind of system of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 5
Preparation Method, it is characterised in that: in the step 5, the carbon nano tube epoxy resin compound after stirring is put into vacuum tank
30min~50min, to remove bubble；
In the step 6, the carbon nano tube epoxy resin compound for removing bubble is coated to by wet film maker and is coated with gold
On the flexible base board for belonging to interdigital electrode, then after 75 DEG C~85 DEG C solidification 2h~4h, or at room temperature after solidification 46h~50h,
Obtain the flexibility temperature sensor based on carbon nano tube epoxy resin laminated film.
9. a kind of system of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 5
Preparation Method, it is characterised in that: the obtained flexibility temperature sensor based on carbon nano tube epoxy resin laminated film it is temperature sensitive
Characteristic is non-linear temperature-sensing property.
10. a kind of flexibility temperature sensor based on carbon nano tube epoxy resin laminated film according to claim 9
Preparation method, it is characterised in that: the different sensors being prepared under same recipe, technique and dimensional parameters are at the same temperature
Resistance value may it is different, a kind of experiment-transformation approach is provided, by experiment and data processing obtain one of sensor
Then temperature-sensing property characteristic equation is converted to other under same recipe, technique and dimensional parameters by this method and is prepared into
The temperature-sensing property characteristic equation of the sensor arrived, detailed process is as follows for experiment-transformation approach:
1) different sensors being prepared under same recipe, technique and dimensional parameters are numbered: 0,1,2,3......；
2) No. 0 sensor is tested, detects its resistance value variation with temperature data, its temperature sensitive spy is obtained by data processing
Property characteristic equation are as follows:
Wherein: a, b, c are the coefficient constant of equation；T is real time temperature；R0For the real-time resistance value variable of No. 0 sensor；RA0It is 0
Number resistance value of the sensor at temperature A, our temperature A are referred to as the temperature reference of No. 0 sensor, i.e., the resistance value of No. 1 sensor becomes
Rate is demarcated at temperature A；
3) sensor to be converted is set as No. i (i=1,2,3......), and detecting its resistance value at temperature B is RBi；
4) equation (1) is deformed:
It is R that resistance value of No. 0 sensor at temperature B, which is calculated, by equation (2)B0；
5) then temperature-sensing property characteristic equation of the i sensor at temperature reference B are as follows:
Wherein, RiFor the real-time resistance value variable of i sensor；
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