CN109323783A - A kind of scalability electronic skin and preparation method for intelligent control - Google Patents
A kind of scalability electronic skin and preparation method for intelligent control Download PDFInfo
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- CN109323783A CN109323783A CN201811042303.4A CN201811042303A CN109323783A CN 109323783 A CN109323783 A CN 109323783A CN 201811042303 A CN201811042303 A CN 201811042303A CN 109323783 A CN109323783 A CN 109323783A
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 6
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- VOWAEIGWURALJQ-UHFFFAOYSA-N Dicyclohexyl phthalate Chemical compound C=1C=CC=C(C(=O)OC2CCCCC2)C=1C(=O)OC1CCCCC1 VOWAEIGWURALJQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 3
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- 238000012360 testing method Methods 0.000 description 7
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- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 5
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
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- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of scalability electronic skins and preparation method for intelligent control.By piezoelectric ceramic powder, binder, plasticiser and water mixed pulp, spinneret is fired to obtain piezoelectric ceramic fibers, rubber thin-bed is made in graphene dispersion in acrylic rubber, piezoelectric ceramic fibers paving is then sprinkled upon to the one side of rubber thin-bed, it is bonded one layer of rubber thin-bed again, electronic skin sensitive layer is made, is finally implanted into conducting wire, and it is film adhered to get scalability electronic skin with flexible parent metal.This method is dispersed with the acrylic rubber layer of graphene by being implanted into piezoelectric ceramic fibersization, with extremely strong sensitivity, response time is short, it is easy to intelligent control, the electronic skin of preparation, it is ultra-thin, light, it is flexible close to human skin, retractility is good, is the optimal electronic skin of the wearable device of intelligent control.
Description
Technical field
The present invention relates to electronic skin field, more particularly to a kind of scalability electronic skin for intelligent control and
Preparation method.
Background technique
Human skin is active, sensitive and elastomeric sense organ, carries protection body, perspires, temperature adjusting, sense
Know the functions such as cold and hot and pressure.Human body somatosensory system can be by receptors such as tactile, temperature, the pains sensation in skin, will
External environment stimulation is converted into electric impulse signal, conducts by nerve pathway to nerve center, so that skin be made to obtain tactile, pain
The sensory functions such as feel.Based on this multifunctional bio model of skin, scientists have carried out a new branch of science research --- touching
Feel electronics (being commonly called as " electronic skin ", Electronic skin, E-skin), for imitating the sensory function of skin as touched
The functions such as feel, temperature sensing.
Currently, electronic skin production in flexible or elastic substrates has the sensing of detection pressure, temperature or other stimulations
Device and array can perceive the signals such as various physics, chemistry, the biology in ambient enviroment, it will help develop novel man-machine interface,
The intellectualizing systems such as intelligent robot, bionical artificial limb.In addition, the important trend of electronic skin is multifunction and multiple thorn
Swash Simultaneous Monitoring.Realize temperature, humidity, ultraviolet light, magnetic, strain, pressure and close to etc. a variety of environmental stimulis real-time synchronization prison
It surveys.In particular with the development of intelligent control, electronic skin is exactly a kind of novel wearable flexible bionic touch sensor, its energy
Enough realize the artificial flexible electronic device of apery class tactilely-perceptible function.
Chinese invention patent application number 201711133399.0 discloses a kind of flexible electronic skin sensor and its preparation
Method, wherein flexible electronic skin sensor includes several pressure sensitive units；Pressure sensitive unit is flexible by two panels and can stretch
The ultra-thin PDMS film of contracting, two plate electrodes being attached between the ultra-thin PDMS film of two panels respectively, and be set between two plate electrodes
Composite pressure sensing membrane composition；Composite pressure sensing membrane is by several polyaniline hollow nanospheres and for connecting adjacent polyaniline
The multi-walled carbon nanotube of hollow nanospheres forms；Each pressure sensitive unit utilizes plasma processor, and uses electrode pixel
Processing is in the sensor array for setting area to be formed.
Chinese invention patent application number 201711184092.3 discloses a kind of highly sensitive electronic skin, has polyethylene
Alcohol-silver nanowires/graphene-PDMS sandwich structure forms one layer on PET base material surface by way of spraying and mutually overlaps
The silver nanowires conductive network of accumulation, even application disperses one layer by large stretch of graphene and small on silver nanowires network again later
The graphene of piece graphene mixing, these graphenes are deposited on the silver nanowires that between silver nanowires network or connection is adjacent, into
One step enhances the electric conductivity of conductive network, later, using the mode of spin coating in one strata second of above-mentioned conductive network surface spin coating
Matrix of the enolate solution as electronic skin, finally, separate composite membrane from PET film after polyvinyl alcohol is dry, it will
The composite membrane is transferred in baking oven, overturns surface, and one layer of PDMS film is deposited in the one side contacted with PET, can thus obtain
To a kind of electronic skin of sandwich structure.
Chinese invention patent application number 201520966018.7 has disclosed a kind of for measuring the flexible electrical of contact pressure
Sub- skin, the flexible electronic skin include upper electrode layer, middle detector layer and lower electrode layer, wherein institute's electrode layer includes soft
Property top electrode and multiple contacts, the upper surface of the flexible top electrode, the middle detector layer packet is arranged in each contact
Include metal film, porous PDMS film, the multiple pressure sensitive units and lower metal film being arranged on PDMS film.
Chinese invention patent application number 201711166759.7 is disclosed in robotic technology field, provides a kind of machine
People's electronic skin, including by interior the first lamination layer structure and the second lamination layer structure being arranged in robot shells outward,
In, first lamination layer structure includes the gum layer being cascading in the robot shells, the first supporting layer,
One conductive silver glue-line, second lamination layer structure include conductive in second set gradually towards the first lamination layer structure direction
Elargol layer, the second supporting layer；And several use are provided between first lamination layer structure and second lamination layer structure
In the first insulation protrusion for separating the first conductive silver glue-line and the second conductive silver glue-line.
According to above-mentioned, electronic skin is used for intelligent control and wearable control in existing scheme, and it is lower that there are sensitivity, and
Reaction is slow, and retractility is poor, so that realizing the performance existing defects of human-computer intellectualization in intelligent control.
Summary of the invention
When being used for intelligent control, wearable product for the wider electronic skin of current application, it is poor that there are retractilities, reaction
The low defect of sensitivity, the present invention proposes a kind of scalability electronic skin and preparation method for intelligent control, to have
Effect improves sensitivity and the scalability of electronic skin, has fabulous application prospect.
Specific technical solution of the present invention is as follows:
A kind of preparation method of the scalability electronic skin for intelligent control, comprising the following steps:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin.
Preferably, step (1) binder is silicone sealants, in epoxy adhesive, polyurethane adhesive
One kind.
Preferably, step (1) plasticiser is di-n-octyl phthalate, BBP(Butyl Benzyl Phthalate, adjacent benzene two
Formic acid di-sec-octyl, dicyclohexyl phthalate, dibutyl phthalate, diethyl phthalate, phthalic acid
At least one of dimethyl ester.
Preferably, in step (1) described piezoelectric ceramic fibers, 30 ~ 50 parts by weight of piezoelectric ceramic powder, 1 ~ 2 weight of binder
Part, 1 ~ 2 parts by weight of plasticiser, 46 ~ 68 parts by weight of water.
Preferably, the temperature of step (1) described firing is 800 ~ 1000 DEG C, and the time is 3 ~ 4h.
Preferably, in step (2) described rubber thin-bed, 5 ~ 20 parts by weight of graphene, 80 ~ 95 weight of acrylic rubber
Part.
Preferably, step (2) described rubber thin-bed with a thickness of 0.6 ~ 1.2mm.
Preferably, step (3) the electronic skin sensitive layer with a thickness of 0.3 ~ 0.5mm.
Preferably, step (4) the flexible parent metal film is polydimethylsiloxanefilm film, polyvinyl chloride film, gathers partially
One of dichloroethylene film.
The present invention also provides the scalability electronic skins for intelligent control that a kind of above-mentioned preparation method is prepared.
The present invention provides a kind of scalability electronic skins and preparation method for intelligent control, with prior art phase
Than the feature and excellent effect protruded is:
1, propose that the acrylic rubber layer preparation that piezoelectric ceramic fibersization implantation is dispersed with to graphene is used for intelligent control
The method of scalability electronic skin.
2, by the way that piezoelectric ceramic fibersization implantation to be dispersed with to the acrylic rubber layer of graphene, in atomic small pressure
Under power, fiber can deformation occurs, generates micro-current, and through graphene and conducting col, has extremely strong sensitivity, when response
Between it is short, be easy to intelligent control.
3, the electronic skin of preparation of the invention, ultra-thin, light, for flexibility close to human skin, retractility is good, is intelligent control
Make the optimal electronic skin of wearable device.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is silicone sealants；Plasticiser is di-n-octyl phthalate；In piezoelectric ceramic fibers, piezoelectricity
41 parts by weight of ceramic powder, 1 parts by weight of binder, 2 parts by weight of plasticiser, 56 parts by weight of water；The temperature of firing is 920 DEG C, the time
For 3.5h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
12 parts by weight of alkene, 88 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 0.9mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.5mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polydimethylsiloxanefilm film.
Test method are as follows:
Electronic skin made from embodiment 1 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 1 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 1 measured by the above method and retractility are as shown in table 1.
Embodiment 2
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is epoxy adhesive；Plasticiser is BBP(Butyl Benzyl Phthalate；In piezoelectric ceramic fibers, piezoelectricity
30 parts by weight of ceramic powder, 1 parts by weight of binder, 1 parts by weight of plasticiser, 68 parts by weight of water；The temperature of firing is 800 DEG C, the time
For 4h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
5 parts by weight of alkene, 95 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 0.6mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.3mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polyvinyl chloride film.
Test method are as follows:
Electronic skin made from embodiment 2 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 2 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 2 measured by the above method and retractility are as shown in table 1.
Embodiment 3
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is polyurethane adhesive；Plasticiser is di-sec-octyl phthalate；In piezoelectric ceramic fibers, piezoelectricity
50 parts by weight of ceramic powder, 2 parts by weight of binder, 2 parts by weight of plasticiser, 46 parts by weight of water；The temperature of firing is 1000 DEG C, the time
For 3h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
20 parts by weight of alkene, 80 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 1.2mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.5mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polyvinylidene chloride film.
Test method are as follows:
Electronic skin made from embodiment 3 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 4 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 3 measured by the above method and retractility are as shown in table 1.
Embodiment 4
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is silicone sealants；Plasticiser is dicyclohexyl phthalate；In piezoelectric ceramic fibers, piezoelectricity
33 parts by weight of ceramic powder, 1 parts by weight of binder, 1 parts by weight of plasticiser, 65 parts by weight of water；The temperature of firing is 850 DEG C, the time
For 4h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
10 parts by weight of alkene, 90 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 0.8mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.3mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polydimethylsiloxanefilm film.
Test method are as follows:
Electronic skin made from embodiment 4 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 4 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 4 measured by the above method and retractility are as shown in table 1.
Embodiment 5
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is epoxy adhesive；Plasticiser is dibutyl phthalate；In piezoelectric ceramic fibers, piezoelectricity
45 parts by weight of ceramic powder, 2 parts by weight of binder, 2 parts by weight of plasticiser, 51 parts by weight of water；The temperature of firing is 950 DEG C, the time
For 3h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
15 parts by weight of alkene, 85 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 1.1mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.5mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polyvinyl chloride film.
Test method are as follows:
Electronic skin made from embodiment 5 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 5 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 5 measured by the above method and retractility are as shown in table 1.
Embodiment 6
Preparation process are as follows:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；Binder is polyurethane adhesive；Plasticiser is repefral；In piezoelectric ceramic fibers, piezoelectricity pottery
40 parts by weight of porcelain powder, 1 parts by weight of binder, 2 parts by weight of plasticiser, 57 parts by weight；The temperature of firing is 900 DEG C, and the time is
3.5h；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；In rubber thin-bed, graphite
12 parts by weight of alkene, 88 parts by weight of acrylic rubber；Rubber thin-bed with a thickness of 0.9mm；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；Electronic skin sensitive layer with a thickness of
0.4mm；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin；Flexible parent metal film is polyvinylidene chloride film.
Test method are as follows:
Electronic skin made from embodiment 6 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from embodiment 6 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
The sensitivity of the electronic skin of the embodiment 6 measured by the above method and retractility are as shown in table 1.
Comparative example 1
In the electronic skin preparation of comparative example 1, not prefabricated piezoelectric ceramic fibers, but piezoelectric ceramic powder is dispersed in rubber,
Other are consistent with embodiment 6, and the sensitivity of electronic skin obtained and retractility are as shown in table 1.
Test method are as follows:
Electronic skin made from comparative example 1 is made to the sample of 100mm × 100mm, is 25 DEG C in temperature, relative humidity 55%,
Standard atmospheric pressure is tested using capacitor mems tester, and pressure limit is 1 ~ 100Pa, according to formula S=δ (△ C/C0)/δp
Meter sensitivity, △ C=C-C0, wherein C0For the capacitance under benchmark pressure, P is to apply pressure, and C is the electricity applied after pressure
Capacitance calculates average sensitivity.
Electronic skin made from comparative example 1 is made to the sample of 100mm × 10mm, is 25 DEG C in temperature, relative humidity is
55%, standard atmospheric pressure measures the tensile strength of material using puller system first, then carries out telescopicing performance test, draws being less than
It in the case where stretching intensity, is tested with the speed of 100mm/min, test can restore the maximum elongation rate of full size and extensive
The multiple time.
In the electronic skin preparation of comparative example 1, graphene is not added in rubber thin-bed, other are consistent with embodiment 6, are made
Electronic skin sensitivity and retractility it is as shown in table 1.
Table 1:
| Performance indicator | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative example 1 |
| Sensitivity (kPa-1) | 12.2 | 12.6 | 12.6 | 11.8 | 12.3 | 12.4 | 5.4 |
| It can restore elongation (%) | 145.3 | 141.5 | 142.3 | 142.5 | 143.2 | 142.2 | 109.8 |
| Recovery time (s) | 3.2 | 2.8 | 2.7 | 2.9 | 3.3 | 2.9 | 34 |
Claims (10)
1. a kind of preparation method of the scalability electronic skin for intelligent control, which comprises the following steps:
(1) piezoelectric ceramics is miniaturize powder processed, binder, plasticiser, water is added, slurrying, then spinneret, is fired, and piezoelectricity is made
Ceramic fibre；
(2) by graphene dispersion in acrylic rubber, kneading, then calendering is rubber thin-bed；
(3) rubber thin-bed made from step (2) is fitted in piezoelectric ceramic fibers two sides made from step (1), carries out shaping pressure
System, is embedded in piezoelectric ceramic fibers between rubber thin-bed, and electronic skin sensitive layer is made；
(4) by the two sides of electronic skin sensitive layer made from conducting wire implantation step (3), the electronic skin of conducting wire will be then implanted with
The one side of sensitive layer is film adhered with flexible parent metal, and another side is bonded with vulcanised elastomeric rubber membrane, and scalability electronics skin is made
Skin.
2. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: step (1) binder is one of silicone sealants, epoxy adhesive, polyurethane adhesive.
3. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: step (1) plasticiser be di-n-octyl phthalate, BBP(Butyl Benzyl Phthalate, di-sec-octyl phthalate,
Dicyclohexyl phthalate, dibutyl phthalate, diethyl phthalate, in repefral at least
It is a kind of.
4. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: in step (1) described piezoelectric ceramic fibers, 30 ~ 50 parts by weight of piezoelectric ceramic powder, 1 ~ 2 parts by weight of binder, plasticiser 1 ~ 2
Parts by weight, 46 ~ 68 parts by weight of water.
5. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: the temperature of step (1) described firing is 800 ~ 1000 DEG C, and the time is 3 ~ 4h.
6. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: in step (2) described rubber thin-bed, 5 ~ 20 parts by weight of graphene, 80 ~ 95 parts by weight of acrylic rubber.
7. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: step (2) described rubber thin-bed with a thickness of 0.6 ~ 1.2mm.
8. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: step (3) the electronic skin sensitive layer with a thickness of 0.3 ~ 0.5mm.
9. a kind of preparation method of the scalability electronic skin for intelligent control, feature exist according to claim 1
In: step (4) the flexible parent metal film is polydimethylsiloxanefilm film, polyvinyl chloride film, polyvinylidene chloride film
One of.
10. a kind of scalability electronics for intelligent control that any one of claim 1 ~ 9 preparation method is prepared
Skin.
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