CN109900198A - A kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency - Google Patents
A kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency Download PDFInfo
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Abstract
The invention belongs to new function material science and technology fields, particularly belong to a kind of preparation method of transparent strain sensing devices of ultra-thin high resiliency.Include the following steps: to be pre-stretched after raw films are made in elastomer by (1), be pre-stretched as raw films are stretched to 120% to the 1000% of original size, raw films oxidation obtains elastic film；(2) by elastic film and polycation surfactant fluid；(3) elastic film with conductive layer will be obtained by the anion solutions of the elastic film surface coating conductive materials of step (2)；(4) step (2), (3) are repeated, hyperelastic body conductive film is obtained；(5) it encapsulates, obtains strain sensing devices.Strain sensing devices of the invention are under minimum size and ultrathin, construct plurality of conductive layers, resistivity is low, high transparency, and the biggish radius of the waveform gauffer formed in the structure, single waveform size are smaller so that device sensitivity height and fast response time.
Description
Technical field
The invention belongs to new function material science and technology fields, and in particular to a kind of ultra-thin transparent strain sensing of high resiliency
The preparation method of device.
Background technique
In recent years, artificial intelligence technology high speed development, related intelligent terminal are largely popularized.Emulated robot, medical treatment are repaired
Body (artificial-muscle), wearable medical electronics device etc. present huge market prospects.And the development in the field from
Numerous senser elements haveing excellent performance are not opened, these senser elements are to realize the intelligentized crucial and foundation stone of end product.Its base
Present principles are to form accessible letter using the interactions such as special material and sound wave, light wave, electromagnetic field, the field of force or temperature field
Breath, makes the true material world of the perception such as robot, artificial limb, electronic monitoring equipment.Strain sensing devices are exactly wherein very heavy
The one kind wanted.In general, strain sensing devices require the spy of having property of the electric signal line variation in certain deformation range
Point, so as to calculate strain size according to the variation of electric signal.
Currently, about strain sensing devices research mostly be conductive materials are carried on by way of spin coating or drop coating it is soft
Property stretchable matrix surface, to make conductive network that linear invertible variation occur with matrix deformation.Among these, conductive layer object
The combination of matter and matrix is the key that reversible change.However, numerous its conductive layer of strain sensing devices are in conjunction with matrix at present
It is weaker, cause strain sensing devices linear dependence and cyclical stability poor.In addition, the range of strain of current strain transducer
Lower (less than 100%), to limit its use scope.
Strain transducer in the prior art since responsiveness of the material to stress is poor, so its sensitivity it is lower and
Transparency is poor, and in order to guarantee electric conductivity on thickness, the thickness of conductive layer is often thicker, will limit senser element in this way and exists
Use in small volume, complicated electronic equipment.
Summary of the invention
In view of this, the present invention provides a kind of preparation method of transparent strain sensing devices of ultra-thin high resiliency, by layer by layer
Conductive filler is carried on the high resiliency film surface of pre-stretching by self-assembling technique, is formed compared with strong―binding interface and has stabilization
The ultra-thin elastic conductive film of conductivity.The strain sensing devices as constructed by the film, conductivity, range of strain, light transmission
Rate can be regulated and controled by preparation technology parameter, to realize the high sensitivity of strain sensing, Wide measuring range and high transparency.
The present invention is a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency, is included the following steps:
(1) by elastomer presulfurization, clean sheet glass or quartz plate is taken to infiltrate the left side 10s in polycation surfactant
It takes out after right, is rinsed with deionized water, dried.Sheet glass or quartz plate are placed in the latex solution of presulfurization again
It takes out, is dried after 10s, elastomer is prepared into the raw films with a thickness of 50-200 microns, it can also be by hot pressing, molten
Liquid plastic film mulch legal system obtains raw films, and raw films are removed from sheet glass or quartz plate and are pre-stretched with fixture, pre-stretching
Mode can be to be uniaxially stretched or biaxial stretch-formed, the raw films are stretched to 120% to the 1000% of original size, will
Raw films oxidation after pre-stretching, obtains elastic film；
Elastomer can for natural rubber, butadiene-styrene rubber, nitrile rubber, s-B-S thermoplastic elastomer (TPE),
One of hydrogenated styrene-butadiene-styrene thermoplastic elastomer (TPE), ethylene propylene diene rubber, silicon rubber are a variety of.
It needs to carry out surface to the film of pre-stretching in the present invention to be modified, modified mode is after being pre-stretched in the present invention
Raw films be placed in plasma surface processor or UV-ozone generator and aoxidized so that elastomer thin film
Surface is rich in oxygen-containing functional group, and then has good hydrophily.Pretreated purpose is to improve its wellability and have and contain
Raising of the oxygen functional group to the wellability of solution, can adsorb polycation electrolyte.
(2) by infusion process, spin-coating method by polycation surfactant-coated on the elastic film, then with largely
Deionized water rinses drying after extra unadsorbed polycation, so that elastic film adsorption cationic polyelectrolyte；
The polycation surfactant can be polydimethyl diallyl ammonium chloride.The matter of polycation surfactant
Amount concentration is 0.1-2%, and polycation electrolyte can be adsorbed on to the surface of elastic film by infusion process, spin-coating method.
(3) aqueous solution will be made by the elastic film surface dipping of step (2) or the anion solutions of spin coating conductive materials
In conductive materials elastomer thin film surface is adsorbed in by way of electrostatic self-assembled, then rinsed out not with a large amount of deionized waters
The conductive materials of absorption, then lead to gas dry, ultra-thin conductive nano layer is finally formed on film, after obtain with conduction
The elastic film of layer；
Polycation electrolysis on anion and film when coating conductive materials in the anion solutions of conductive materials
Matter is adsorbed, and doing so can be improved that conductive layer is closer to be adsorbed on substrate.
The mass concentration of the anion solutions of conductive materials is 0.1-2%, and conductive materials can be poly- 3,4- ethylene dioxy thiophene
Pheno/poly styrene sulfonate, the graphene oxide of reduction, multi-walled carbon nanotube, single-walled carbon nanotube, silver nanowires, gold nano
One of line, Nano silver grain, gold nanoparticle are a variety of, multi-walled carbon nanotube here, single-walled carbon nanotube, silver nanoparticle
Line, nanowires of gold, Nano silver grain, gold nanoparticle anionic water solution be commercially available chemical reagent, buying back come
It needs to carry out concentration allotment later.
(4) it is at least repeated once step (2), (3), obtains hyperelastic body conductive film；
By the conductive layer that elastomer thin film can be made to load the different numbers of plies and different thickness that repeats the above steps, to adjust it
Electric conductivity, light transmission etc..The thickness of the conductive layer of load can pass through time for impregnating in rate-determining steps (3), spin coating
Speed, the concentration of anion solutions of conductive materials regulate and control.
(5) fixture of removal clamping film, springs back film, and carry out the encapsulation of hyperelastic body conductive film, is surpassed
The thin transparent strain sensing devices of high resiliency.Encapsulation includes the following steps, attaches to conductive layer both ends using conductive silver glue and is formed just
Cathode, and reserve interface；Hyperelastic body conductive film in step (4) is coated into encapsulated layer again, presulfurization can be used in encapsulated layer
Latex can be also possible to different materials using material identical from film, pass through hot pressing, dipping, the mode of solution drop coating
Cladding uses ultraviolet light after drying, complete encapsulation.
Elastic film as the present invention in substrate, film be in stretch in the state of carry out polycation electrolyte,
Conductive materials alternately coat, and can have oxygen-containing functional group by oxidation pre-treatment in substrate with rear surface, can enhance surface suction
Attached property, so that polycation electrolyte is adsorbed on substrate, polycation electrolyte is positively charged, and the anion of conducting medium is molten
Negatively charged in liquid, the two is attracted each other by electrostatic interaction, can guarantee the adhesiveness between conductive layer and substrate.By made bullet
Property film stretch after, conductive layer will form the structure of waveform fold when restoring, and under the same terms, the ratio of stretching is got over
Greatly, it is bigger to shrink conductive layer thickness when restoring, electric conductivity can be relatively more preferable.After the completion of elastic film pre-stretching, when shrinking recovery,
Fold is formed along the opposite direction of method in the direction of extension recovery, with the increase of stretching ratio and the conductive number of plies, wave
The radius of curvature of shape fold can reduce, single waveform size can reduce, and electric conductivity improves, so that strain transducer is sensitive
Degree increases.But too most and conductive layer the thickness increase of the ratio stretched can reduce the transparency of its film.
The geometric configuration of conductive materials and the physical characteristic of itself to the conductivity of prepared high resiliency transparent membrane and
Sensibility has larger impact.When conductive materials are graininess, for the transparency for guaranteeing conductive layer, conductive layer cannot be too thick, coating
The number of plies should be maintained at lower level, however its electric conductivity and sensibility are affected.Conductive materials be compliant conductive substance (i.e.
The conductive layer of formation has good bending ability) when, the conductive number of plies and thickness can be controlled in lower range, keep good and lead
Electrically, sensibility and transparency, thus it is more suitable using flexible conductive layer when excluding economic factor, be conducive to reduce
The volume of conductive layer, thickness.
The ultra-thin transparent strain sensing devices of high resiliency prepared by the present invention are under minimum size and ultrathin, building
Plurality of conductive layers so that resistivity is greatly lowered can make device reach high transparency, in the structure shape when conductive layer is constructed
At waveform gauffer lesser radius of curvature, single waveform size it is smaller so that device have high sensitivity and quickly
The characteristics of response.By layer-by-layer, contact conductive layer with substrate closely, so that device has good operation steady
It is qualitative.It can be by observing the transparent strain sensing devices of ultra-thin high resiliency of the invention in the tensile deformation size of 120-1000%
The linear change of lower conductance monitors the case where by stress-strain.Flexible or stretching is covered on nonplanar human body surface and machine table
The advantages that face, has easy to use, and stability is high, and preparation method is simple, at low cost.
Detailed description of the invention
Fig. 1 is a kind of sensing that the preparation method of the ultra-thin transparent strain sensing devices of high resiliency is prepared provided by the invention
The structural schematic diagram of device；
Fig. 2 is a kind of senser element that the preparation method of the ultra-thin transparent strain sensing devices of high resiliency is prepared provided by the invention
The variation of resistivity under the effect of 120% cyclic strain.
Specific embodiment
The present invention will be described in detail With reference to embodiment.
Embodiment one
Please refer to Fig. 1, Fig. 2.
A kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency, includes the following steps:
(1) by natural rubber presulfurization, the poly dimethyl two that clean sheet glass or quartz plate are 0.1% in mass concentration is taken
10s or so is infiltrated in allyl ammonium chloride (PDADMAC) polycation surfactant to take out later, is rinsed with deionized water,
Drying.Sheet glass or quartz plate are placed in the latex solution of presulfurization after 10s again and taken out, is dried, by elastomer
The raw films with a thickness of 50 microns are prepared into, raw films are removed from sheet glass or quartz plate and carry out prestretching with fixture
It stretches, the mode of pre-stretching can be to be uniaxially stretched, and the raw films are stretched to the 120% of original size, after pre-stretching
Raw films oxidation, obtains elastic film；
(2) pass through infusion process (or spin-coating method) for polydimethyl diallyl ammonium chloride polycation surfactant-coated in institute
It states on elastic film, then is dried after rinsing extra unadsorbed polycation with a large amount of deionized waters, so that elastic film surface
Liquidity limit electrolyte；
(3) will make in aqueous solution by the elastic film surface dipping of step (2) or the anion solutions of spin coating conductive materials
Conductive materials are adsorbed in elastomer thin film surface by way of electrostatic self-assembled, then are rinsed out with a large amount of deionized waters unadsorbed
Conductive materials, then lead to gas dry, finally form ultra-thin conductive nano layer on film, after obtain with conductive layer
Elastic film；
It is the graphene oxide of 1% reduction, the graphene oxide of reduction that conductive materials, which use mass concentration, in the present embodiment
The configuration method of the aqueous solution of conductive materials are as follows: take 5g original graphite and 2.5g NaNO3Being slowly added to 240ml mass fraction is
98% concentrated sulfuric acid is placed under 0-4 DEG C of condition of ice bath and stirs 8 hours, guarantees to be sufficiently mixed, be then slowly added to 15g in six batches
KMnO4, react 2.5h；It is moved into 35 DEG C of water-baths again and continues to stir 30min；To after reaction, be slowly added to 400ml go from
Sub- water is diluted, and is subsequently placed in 95 DEG C of water-baths and is continued to stir 30min；With the deionized water dilute reaction solution of warm, then delay
The slow H that 25ml mass fraction is added and is 30%2O2Solution stirs companion, and solution filters while hot in golden yellow at this time, with 5% sulfuric acid and goes
Ionized water sufficiently washs brown color sediment to the close neutrality of pH.It will be transferred to beaker after the centrifugation of gained liquid at high speed, freezing is dry
It is dry.The graphene oxide powder 0.1g for taking preparation, is added appropriate soft water, mechanical stirring for 24 hours after ultrasound 30min, formed stable
1% graphene oxide solution；
(4) it is repeated 20 times step (2), (3), obtains hyperelastic body conductive film, elastomer thin film is finally placed in 50% hydration
The top of hydrazine solution is restored at 80 DEG C by hydrazine hydrate steam；
(5) fixture of removal clamping film, springs back film, and carry out the encapsulation of hyperelastic body conductive film, obtains ultra-thin height
The transparent strain sensing devices of elasticity.Encapsulation includes the following steps, attaches to conductive layer both ends using conductive silver glue and forms positive and negative anodes,
And reserve interface；Hyperelastic body conductive film in step (4) is impregnated in 10s in elastomer prevulcanized latex again, is used after drying
Ultraviolet light completes encapsulation, obtains the transparent strain sensing devices of ultra-thin high resiliency.
The transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation are drawn using accurate multimeter and material respectively
It stretches machine to be tested, result is that the sensitivity of the transparent strain sensing devices of ultra-thin high resiliency prepared by above-mentioned steps is 2.5, is rung
Answering speed is 40ms, and the light transmittance under 700nm is 84%.
Embodiment two
A kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency, includes the following steps:
(1) by butadiene-styrene rubber presulfurization, the polydimethyl diallyl ammonium chloride that clean quartz plate is 2% in mass concentration is taken
10s or so is infiltrated in solution to take out later, is rinsed, is dried with deionized water.Sheet glass or quartz plate are placed in pre- sulphur again
It takes out, is dried after 10s in the latex solution of change, elastomer is prepared into the raw films with a thickness of 200 microns, it can also be with
Raw films are obtained by hot pressing, solution plastic film mulch legal system, raw films are removed from sheet glass or quartz plate and are carried out in advance with fixture
It stretches, the mode of pre-stretching can be to be uniaxially stretched or biaxial stretch-formed, and the raw films are stretched to original size
200%, the raw films after pre-stretching are aoxidized, elastic film is obtained；
(2) pass through infusion process for polydimethyl diallyl ammonium chloride polycation surfactant-coated in the elastic film
On, then after rinsing extra unadsorbed polycation with a large amount of deionized waters it is dry so that elastic film adsorption cation
Electrolyte；
(3) anion solutions for the multi-walled carbon nanotube that will be 2% by the elastic film surface impregnating effect concentration of step (2),
10s is impregnated, so that the conductive materials in aqueous solution is adsorbed in elastomer thin film surface by way of electrostatic self-assembled, then with largely
Deionized water rinses out unadsorbed conductive materials, then leads to gas dry, finally forms ultra-thin conductive nano on film
Layer, after obtain the elastic film with conductive layer；
(4) it is at least repeated once step (2), (3), obtains hyperelastic body conductive film；
(5) fixture of removal clamping film, springs back film, and carry out the encapsulation of hyperelastic body conductive film, obtains ultra-thin height
The transparent strain sensing devices of elasticity.Encapsulation includes the following steps, attaches to conductive layer both ends using conductive silver glue and forms positive and negative anodes,
And reserve interface；Hyperelastic body conductive film in step (4) is impregnated in 10s in elastomer prevulcanized latex again, is used after drying
Ultraviolet light completes encapsulation, obtains the transparent strain sensing devices of ultra-thin high resiliency.
The transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation are drawn using accurate multimeter and material respectively
It stretches machine to be tested, the sensitivity by the transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation is 2.1, response speed
For 48ms, the light transmittance under 700nm is 31%.
Embodiment three
A kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency, includes the following steps:
(1) by hot press, by s-B-S thermoplastic elastomer (TPE), the hot pressing in mold is, micro- with a thickness of 100
The raw films of rice, raw films are removed from the molds and are pre-stretched with fixture, and the mode of pre-stretching can draw to be uniaxial
It stretches or biaxial stretch-formed, the raw films is stretched to the 1000% of original size, the raw films after pre-stretching are aoxidized,
Obtain elastic film；
(2) pass through infusion process for polydimethyl diallyl ammonium chloride polycation surfactant-coated in the elastic film
On, then after rinsing extra unadsorbed polycation with a large amount of deionized waters it is dry so that elastic film adsorption cation
Electrolyte；
(3) the poly- 3,4-rthylene dioxythiophene/polyphenyl second that will be 1% by the elastic film surface impregnating effect concentration of step (2)
The anion solutions of alkene sulfonate impregnate 10s, the conductive materials in aqueous solution are made to be adsorbed in bullet by way of electrostatic self-assembled
Property body thin film surface, then rinse out unadsorbed conductive materials with a large amount of deionized waters, then lead to gas dry, finally in film
It is upper to form ultra-thin conductive nano layer, after obtain the elastic film with conductive layer；
(4) it is at least repeated once step (2), (3), obtains hyperelastic body conductive film；
(5) fixture of removal clamping film, springs back film, and carry out the encapsulation of hyperelastic body conductive film, obtains ultra-thin height
The transparent strain sensing devices of elasticity.Encapsulation includes the following steps, attaches to conductive layer both ends using conductive silver glue and forms positive and negative anodes,
And reserve interface；Hyperelastic body conductive film in step (4) is impregnated in 10s in elastomer prevulcanized latex again, is used after drying
Ultraviolet light completes encapsulation, obtains the transparent strain sensing devices of ultra-thin high resiliency.
The transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation are drawn using accurate multimeter and material respectively
It stretches machine to be tested, the sensitivity by the transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation is 3.5, response speed
For 30ms, the light transmittance under 700nm is 91%.
Example IV
Sensor is prepared using the method in embodiment two, the difference is that the multi wall carbon that the mass concentration in example IV is 2% is received
The anion solutions of mitron are changed to 1% single-walled carbon nanotube solution of mass fraction, and butadiene-styrene rubber is changed to nitrile rubber, other conditions
It is constant.
The transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation are drawn using accurate multimeter and material respectively
It stretches machine to be tested, the sensitivity by the transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation is 3.0, response speed
For 35ms, the light transmittance under 700nm is 90%.
Embodiment five
Sensor is prepared using the method in embodiment three, the difference is that the multi wall carbon that the mass concentration in example IV is 2% is received
The anion solutions of mitron are changed to 1% single-walled carbon nanotube of mass fraction, 1% graphene oxide solution, and the two alternating impregnating 40 times,
Need to carry out the reduction of graphene oxide, hydrazine hydrate reduction method (restoring method is referring to embodiment one), benzene second in step (4)
Alkene-butadiene-styrene thermoplastic elastomer (TPE) is changed to hydrogenated styrene-butadiene-styrene thermoplastic elastomer (TPE), other conditions
It is constant.
Sensitivity by the transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation is 3.4, and response speed is
Light transmittance under 38ms, 700nm is 74%.
Embodiment six
Sensor is prepared using the method in embodiment three, the difference is that the multi wall carbon that the mass concentration in example IV is 2% is received
The anion solutions of mitron are changed to 1% silver nanowires solution of mass fraction, s-B-S thermoplastic elastic structural reform
For silicon rubber, it is constant that the other conditions of silicon rubber film are prepared using solution plastic film mulch method.
Sensitivity by the transparent strain sensing devices of ultra-thin high resiliency of above-mentioned steps preparation is 2.8, and response speed is
Light transmittance under 30ms, 700nm is 88%.
Change the silver nanowires solution in the present embodiment into nanowires of gold, Nano silver grain, gold nanoparticle；Silicon rubber changes
At ethylene propylene diene rubber, the performance of the senser element of preparation is similar.
The ultra-thin transparent strain sensing devices of high resiliency prepared by the present invention are under minimum size and ultrathin, building
Plurality of conductive layers so that resistivity is greatly lowered can make device reach high transparency, in the structure shape when conductive layer is constructed
At the biggish radius of waveform gauffer, single waveform size is smaller so that device has high sensitivity and quick response
The characteristics of.Conductive layer contacts closely with substrate.It can be existed by observing the transparent strain sensing devices of ultra-thin high resiliency of the invention
The case where linear change of conductance is monitored by stress-strain under the tensile deformation size of 120-1000%.Flexible or stretching is covered on
The advantages that nonplanar human body surface and machine surface, have easy to use, and stability is high, and preparation method is simple, at low cost.It answers
The strain transducer bigger for tensile deformation, resistance variations can be bigger when draw ratio is larger, high sensitivity, surpasses
It is transparent, it is thinner, applied to the smaller complicated electronic equipment of volume, the capture of human action, artificial intelligence robot.
The present invention is not limited to above-mentioned specific embodiment, and the invention may be variously modified and varied.All foundations
Technical spirit of the invention should be included in the present invention to embodiment of above any modification, equivalent replacement, improvement and so on
Protection scope.
Claims (8)
1. a kind of preparation method of the transparent strain sensing devices of ultra-thin high resiliency, is characterized in that, includes the following steps: (1) by bullet
Property system at being pre-stretched after raw films, the pre-stretching is the 120%- that the raw films are stretched to original size
1000%, the raw films after pre-stretching are aoxidized, elastic film is obtained；
(2) it by the elastic film and polycation surfactant fluid, then is dried, so that elastic film adsorption
Cationic polyelectrolyte；
(3) it will be obtained after dry by the anion solutions of the elastic film surface coating conductive materials of step (2) with conduction
The elastic film of layer；
(4) it is at least repeated once step (2), (3), obtains hyperelastic body conductive film；
(5) encapsulation for carrying out hyperelastic body conductive film, obtains the transparent strain sensing devices of ultra-thin high resiliency.
2. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
It states encapsulation to include the following steps, attaches to conductive layer both ends using conductive silver glue and form positive and negative anodes, and reserve interface；Again by step
(4) hyperelastic body conductive film coats encapsulated layer in, and ultraviolet light is used after drying, completes encapsulation.
3. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
State raw films with a thickness of 50-200 microns.
4. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
The mass concentration for stating polycation surfactant is 0.1-2%, and the mass concentration of the anion solutions of the conductive materials is
0.1-2%。
5. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 4, is characterized in that, institute
State conductive materials be poly- 3,4-rthylene dioxythiophene/poly styrene sulfonate, the graphene oxide of reduction, multi-walled carbon nanotube,
One of single-walled carbon nanotube, silver nanowires, nanowires of gold, Nano silver grain, gold nanoparticle are a variety of.
6. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
Stating polycation surfactant is polydimethyl diallyl ammonium chloride.
7. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
Stating elastomer is natural rubber, butadiene-styrene rubber, nitrile rubber, s-B-S thermoplastic elastomer (TPE), hydrogenation of benzene
One of ethylene-butadiene-styrene thermoplastic elastomer (TPE), ethylene propylene diene rubber, silicon rubber are a variety of.
8. a kind of preparation method of ultra-thin transparent strain sensing devices of high resiliency according to claim 1, is characterized in that, institute
The mode for stating pre-stretching is to be uniaxially stretched or biaxial stretch-formed.
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| CN112432976A (en) * | 2020-11-10 | 2021-03-02 | 陕西科技大学 | Transparent flexible sensing material with surface fold structure, preparation method and application |
| CN114891256A (en) * | 2022-04-21 | 2022-08-12 | 西安电子科技大学 | Preparation and application of stretchable two-dimensional semiconductor film |
| CN114993187A (en) * | 2022-05-25 | 2022-09-02 | 浙江大学 | Sensor based on combination of optical fiber macrobending loss and fiber-based system geometric buckling deformation and manufacturing method and application thereof |
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| CN114891256A (en) * | 2022-04-21 | 2022-08-12 | 西安电子科技大学 | Preparation and application of stretchable two-dimensional semiconductor film |
| CN114891256B (en) * | 2022-04-21 | 2023-03-14 | 西安电子科技大学 | Preparation and application of stretchable two-dimensional semiconductor film |
| CN114993187A (en) * | 2022-05-25 | 2022-09-02 | 浙江大学 | Sensor based on combination of optical fiber macrobending loss and fiber-based system geometric buckling deformation and manufacturing method and application thereof |
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