CN112266494A - Carbon nanotube fiber-ionic gel artificial muscle and electric actuation performance test method thereof - Google Patents
Carbon nanotube fiber-ionic gel artificial muscle and electric actuation performance test method thereof Download PDFInfo
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- CN112266494A CN112266494A CN202010932284.3A CN202010932284A CN112266494A CN 112266494 A CN112266494 A CN 112266494A CN 202010932284 A CN202010932284 A CN 202010932284A CN 112266494 A CN112266494 A CN 112266494A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 100
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 100
- 210000003205 muscle Anatomy 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims description 15
- 238000011056 performance test Methods 0.000 title claims description 12
- 239000000835 fiber Substances 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 11
- 230000008602 contraction Effects 0.000 claims abstract description 8
- 238000013480 data collection Methods 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 20
- -1 polydimethylsiloxane Polymers 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 claims description 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 5
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012827 research and development Methods 0.000 abstract description 2
- 239000000499 gel Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 6
- 239000000017 hydrogel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 239000011664 nicotinic acid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/22—Measuring piezoelectric properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
Abstract
The invention discloses a carbon nanotube fiber-ionic gel artificial muscle and an electrostriction testing method thereof, belonging to the technical field of electrochemical actuation performance testing. The artificial muscle is mainly prepared from carbon nanotube fibers and ionic gel under certain conditions. The two electrodes of the artificial muscle are electrified by the power supply, and the displacement sensor and the data collection box are used for measuring the electrostrictive contraction quantity of the electrified fiber. The addition of graphene increases the electrical conductivity of the artificial muscle, thereby improving the electrical actuation performance. Dissolving salt with moisture-retaining ability in the gel and coating an elastomer layer with water-retaining ability on the outside of the gel will improve the life of the artificial muscle, compared with the carbon nanotube fiber driven in gas or liquid environment, the artificial muscle has the advantages of high conductivity, higher energy conversion efficiency, excellent mechanical properties and wider application environment, and has wide application in the fields of medical sanitation, industrial product manufacturing, robot research and development, and the like.
Description
Technical Field
The invention relates to the technical field of electrochemical actuation performance testing, in particular to a carbon nanotube fiber-ionic gel artificial muscle and an electric actuation performance testing method thereof.
Background
In recent years, artificial muscles have attracted extensive attention and research due to the advantages of light weight, convenient process, good flexibility and the like. The artificial muscle is a novel material which can generate response and different deformation through different structures when being stimulated by the outside. Along with higher performance requirements of people on artificial muscles, the performance requirements of electric actuating materials serving as core parts of the artificial muscles are higher, but the mechanical properties and the electric conductivity of most of the existing materials cannot be considered at the same time, and the problems of breakage, low room-temperature electric conductivity, poor driving performance and the like caused by stress in the using process exist. Meanwhile, when the artificial muscle is driven in a gas or liquid environment, the artificial muscle is greatly restricted in the practical application process.
The polymer gel has attracted much attention because of its good biocompatibility. The addition of ions makes the polymer gel have higher conductivity. The carbon nanotube fiber is a macroscopic material with excellent performance, has high mechanical strength, high conductivity and good flexibility, and the hole structure of the carbon nanotube fiber can construct an oriented passage for ion transmission, increase the ion mobility and obviously improve the conductivity and the mechanical stability of the artificial muscle. The carbon nanotube fiber and the ionic gel are assembled into the artificial muscle to further design a driving structure, and the development of the fields of the bionic robot and the biological medical treatment is promoted. The hydrogel is easy to dehydrate and dry in the air, salt with moisture-retaining capacity is dissolved in the hydrogel, the vapor pressure of water can be reduced, so that the evaporation of the water is slowed/inhibited, and a thin elastomer layer is wrapped outside the hydrogel, so that the transparency and the stretchability of the hydrogel are not influenced, and the water-retaining effect can be realized. As a material with excellent mechanical and electrical properties, in the carbon nanotube fiber-ionic gel artificial muscle, along with the increase of the content of graphene, the bearing capacity of the artificial muscle is reduced, and the actuating performance is improved, so that the driving performance of the artificial muscle is also improved by adding a proper amount of graphene.
Disclosure of Invention
The invention aims to provide a carbon nanotube fiber-ionic gel artificial muscle and an electric actuation performance testing method thereof. In the preparation process, the conductivity of the ionic gel and the water retention capacity of the ionic gel are increased, and the service life of the carbon nanotube fiber-ionic gel artificial muscle is prolonged. The artificial muscle has higher energy conversion efficiency and wider application environment, enhances the electric driving performance of the artificial muscle, and is beneficial to promoting the further development of the research and application of the artificial muscle.
The invention discloses a carbon nano tube fiber-ionic gel artificial muscle and an actuating performance testing method thereof, which mainly comprises the following steps:
1) process for preparing artificial muscle from carbon nanotube fiber-ionic gel
Preparing a carbon nano tube fiber electrode: firstly, placing carbon nanotube fibers immersed in graphene solution in N-methyl pyrrolidone (NMP), using an ultrasonic oscillator for 1 hour to enable the carbon nanotube fibers to be uniformly distributed, taking the carbon nanotube fibers out of the N-methyl pyrrolidone, fixing one end of the carbon nanotube fibers, twisting the other end of the carbon nanotube fibers for a certain number of turns by using a motor, folding the fibers from the middle, fixing one end of the fibers again, and twisting the other end of the fibers for a certain number of turns in the reverse direction to obtain the carbon nanotube fiber electrode with the stable double-spiral structure.
Preparing an ionic gel liquid: and adding a certain amount of tetraethylammonium tetrafluoroborate into propylene carbonate to prepare an electrolyte solution. Adding a proper amount of polyvinylidene fluoride hexafluoropropylene into an acetone solution, continuously heating and stirring at 35 ℃ on a magnetic stirrer until white crystals in the solution are completely dissolved, and then diluting to obtain a polymer solution. Mixing an electrolyte solution and a polymer solution according to a volume ratio of 5: 1 preparing ionic gel liquid and adding a small amount of potassium sulfate.
Preparing an artificial muscle by using a mold: fixing the obtained carbon nanotube fiber electrode in a groove of a mold, slowly dripping ionic gel liquid by using a dropper to enable the ionic gel liquid to completely immerse the carbon nanotube fiber electrode, standing for 6-8 hours at room temperature in an inert gas environment to obtain the carbon nanotube fiber-ionic gel artificial muscle, and then coating Polydimethylsiloxane (PDMS) on the surface of the carbon nanotube fiber-ionic gel artificial muscle to serve as a water retention layer.
2) Carbon nanotube fiber-ionic gel artificial muscle electric actuation performance test
Fixing the carbon nanotube fiber-ionic gel artificial muscle on a fixture, leading out an electrode chuck by a power supply, clamping a carbon nanotube fiber as an anode by a positive chuck, and clamping a carbon nanotube fiber with a weight hung at the tail end by a negative chuck. And fixing the displacement sensor and the data collection box under the weight. And switching on a power supply, collecting the fiber contraction deformation into an electric signal through a displacement sensor, converting the electric signal into a displacement signal through a data collection box, and finally obtaining the contraction deformation of the carbon nanotube fiber to finish the electric actuation performance test of the carbon nanotube fiber-ionic gel artificial muscle.
The carbon nanotube fiber-ionic gel artificial muscle can generate larger deformation and displacement under the voltage of several volts, can output larger force, has wide application prospect and application value in the fields of robot drivers, sensors, artificial muscle prosthesis structures and the like, and can play a reference role in the design of artificial muscle structures.
The working principle of the invention is as follows:
the electrically-driven artificial muscle prepared by the invention can generate larger contractility under lower voltage, when a power supply is electrified, the anions and the cations of the ionic gel migrate to the two electrodes of the carbon nanotube fiber, and due to the pore structure of the carbon nanotube fiber electrode, the anions and the cations are attached to the inside or the surface of the carbon nanotube fiber electrode, so that the carbon nanotube fiber electrode shows radial expansion and deformation of axial contraction, and simultaneously generates certain driving force.
Compared with a liquid-type or gas-type artificial muscle, the gel is used as a driving environment, so that the phenomena of solvent volatilization, liquid leakage and the like can not occur, the safety and stability of the prepared electric actuating device are improved, the artificial muscle has higher energy conversion efficiency and wider application environment due to the addition of the graphene, the electric driving performance of the artificial muscle is enhanced, the salt with the moisture-preserving capability is dissolved in the hydrogel, and a thin elastomer layer is wrapped outside the hydrogel, so that the service life of the artificial muscle is greatly prolonged, the further development of the research and the application of the artificial muscle is promoted, and the artificial muscle has wide application in the fields of medical sanitation, industrial product manufacturing, robot research and development and the like.
Drawings
FIG. 1 is a schematic diagram of a carbon nanotube fiber twisting process. In the figure, (a) is the initial state of the carbon nanotube fiber; (b) the carbon nano tube fiber is the carbon nano tube fiber which is about to generate spiral after twisting; (c) the carbon nano tube fiber with the stable double-spiral structure is obtained after two twisting; (d) the finished product of the carbon nano tube fiber artificial muscle is obtained.
FIG. 2 is a diagram of a mold for preparing a carbon nanotube fiber-ionic gel artificial muscle.
Fig. 3 is a working principle diagram of the carbon nanotube fiber-ionic gel artificial muscle.
Fig. 4 is a diagram of a device for testing the actuation performance of the carbon nanotube fiber-ionic gel artificial muscle.
Fig. 5 is a schematic diagram of a composite structure of carbon nanotube fiber-ionic gel artificial muscle.
Detailed Description
A carbon nanotube fiber-ionic gel artificial muscle and an electric actuation performance test method thereof are disclosed, wherein the materials required by the experiment comprise: carbon nanotube fibers (d 100 μm, μ 0.5-0.8g/cm3), graphene solution (15mg/ml), N-methylpyrrolidone (NMP, 50mg/ml), Polydimethylsiloxane (PDMS), potassium sulfate (K)2SO4Purity: not less than 99 percent) propylene carbonate (PC, anhydrous, 99.7 percent), polyvinylidene fluoride hexafluoropropylene (PVDF-co-HFP, Mw: about 455000, Mn: about 110000, pelles), tetraethylammonium tetrafluoroborate (purity: 98%), Acetone (AR).
The carbon nanotube fiber-ionic gel artificial muscle and the method for testing the electric actuation performance thereof are further described in detail below with reference to the accompanying drawings.
A carbon nanotube fiber-ionic gel artificial muscle and an electric actuation performance test method thereof mainly comprise two parts of preparation of the carbon nanotube fiber-ionic gel artificial muscle and electric actuation performance test of the carbon nanotube fiber-ionic gel artificial muscle.
1) The preparation process of the carbon nanotube fiber-ionic gel artificial muscle comprises the following steps:
preparing a carbon nano tube fiber electrode: firstly, soaking carbon nanotube fibers in 15mg/ml graphene solution, placing the carbon nanotube fibers in 50mg/ml N-methylpyrrolidone (NMP), using an ultrasonic oscillator for 1 hour to enable the carbon nanotube fibers to be uniformly distributed, taking out the carbon nanotube fibers, fixing one ends of the carbon nanotube fibers, twisting the other ends of the carbon nanotube fibers for a certain number of turns by using a motor until the carbon nanotube fibers are completely coiled, folding the fibers from the middle, fixing one end of the fibers again, and twisting the other ends of the fibers for a certain number of turns in the reverse direction to obtain the carbon nanotube fiber electrode with the stable double-spiral structure.
Preparing an ionic gel liquid:
1. 5.425g of tetraethylammonium tetrafluoroborate was weighed using a balance, and the tetraethylammonium tetrafluoroborate was added to 50ml of propylene carbonate to prepare an electrolyte solution having a concentration of 0.5 mol/L.
2. 3g of polyvinylidene fluoride hexafluoropropylene was weighed and added to 30g of the acetone solution, and the mixture was stirred with continuous heating at 35 ℃ on a magnetic stirrer until white crystals were completely dissolved in the solution, followed by diluting the solution to a concentration of 1 wt% to obtain a polymer solution.
3. Mixing the electrolyte solution and the polymer solution obtained in the steps 1 and 2 according to a volume ratio of 5: 1 preparing ionic gel liquid and adding a small amount of potassium sulfate.
Preparing an artificial muscle by using a mold: and (2) taking a double-sided adhesive tape, adhering the double-sided adhesive tape to a groove of a mold, fixing the obtained carbon nanotube fiber electrode into the groove of the mold, slowly dripping ionic gel liquid by using a rubber head dropper to ensure that the ionic gel liquid completely immerses the carbon nanotube fiber electrode, standing for 6-8 hours at room temperature under an inert gas environment, gelatinizing to obtain the carbon nanotube fiber-ionic gel artificial muscle with the thickness of 3mm, and then coating a thin layer of Polydimethylsiloxane (PDMS) on the surface of the carbon nanotube fiber-ionic gel artificial muscle to serve as a water retention layer.
2) Testing the electric actuation performance of the carbon nanotube fiber-ionic gel artificial muscle:
fig. 4 is a diagram of a device for testing the actuation performance of the carbon nanotube fiber-ionic gel artificial muscle, which mainly comprises the following components: (1) the device comprises a transmission device, a slide rail, a box body (3), a clamp (4), a weight (5), a displacement sensor (6), a data collection box (7) and a carbon nano tube fiber-ionic gel artificial muscle (8).
The two-end clamps (4) are controlled by the transmission device (1) to fix the carbon nanotube fiber-ionic gel artificial muscle (8) on the clamps (4), the power supply leads out an electrode chuck, the positive chuck clamps one carbon nanotube fiber as an anode, and the negative chuck clamps the carbon nanotube fiber with a weight (5) hung at the tail end. And a displacement sensor (6) and a data collection box (7) are fixed under the weight (5). And (3) switching on a power supply, collecting the fiber contraction deformation amount into an electric signal through a displacement sensor (6), converting the electric signal into a displacement signal through a data collection box (7), and finally obtaining the contraction deformation of the carbon nanotube fiber to finish the electric actuation performance test of the carbon nanotube fiber-ionic gel artificial muscle.
Claims (5)
1. A carbon nanotube fiber-ionic gel artificial muscle and an electric actuation performance test method thereof are characterized in that: the method comprises two parts of preparation of the carbon nanotube fiber-ionic gel artificial muscle and electric actuation performance test of the carbon nanotube fiber-ionic gel artificial muscle;
the preparation process of the S1 carbon nanotube fiber-ionic gel artificial muscle comprises the following steps:
preparing a carbon nano tube fiber electrode: firstly, immersing carbon nanotube fibers in a graphene solution, placing the graphene solution in N-methyl pyrrolidone, uniformly distributing the graphene solution by using an ultrasonic oscillator, taking out the carbon nanotube fibers, and then fixing one end of each carbon nanotube fiber and twisting the other end of each carbon nanotube fiber by using a motor for a certain number of turns until the carbon nanotube fibers are completely coiled; folding the fiber from the middle, fixing one end of the fiber again, and twisting the other end of the fiber in the reverse direction to obtain the double-spiral carbon nanotube fiber electrode;
preparing an artificial muscle by using a mold: taking a double-sided adhesive tape, adhering the double-sided adhesive tape to a groove of a mold, fixing a carbon nanotube fiber electrode in the groove of the mold, slowly dripping ionic gel liquid by using a rubber head dropper to ensure that the ionic gel liquid completely immerses the carbon nanotube fiber electrode, standing for 6-8 hours at room temperature under an inert gas environment, gelling to obtain a carbon nanotube fiber-ionic gel artificial muscle with the thickness of 3mm, and then coating polydimethylsiloxane on the surface of the carbon nanotube fiber-ionic gel artificial muscle to serve as a water retention layer;
s2 carbon nanotube fiber-ionic gel artificial muscle electric actuation performance test
Fixing the carbon nanotube fiber-ionic gel artificial muscle on a clamp, leading out an electrode chuck by a power supply, clamping one carbon nanotube fiber as an anode by a positive chuck, and clamping the carbon nanotube fiber with a weight hung at the tail end by a negative chuck; fixing a displacement sensor and a data collection box under a heavy object; and switching on a power supply, collecting the fiber contraction deformation into an electric signal through a displacement sensor, converting the electric signal into a displacement signal through a data collection box, and finally obtaining the contraction deformation of the carbon nanotube fiber to finish the electric actuation performance test of the carbon nanotube fiber-ionic gel artificial muscle.
2. The carbon nanotube fiber-ionic gel artificial muscle and the method for testing the electric actuation performance thereof as claimed in claim 1, wherein: the salt having moisture-retaining ability dissolved in the gel is potassium sulfate.
3. The carbon nanotube fiber-ionic gel artificial muscle and the method for testing the electric actuation performance thereof as claimed in claim 1, wherein: the gel is coated with an elastomer layer with water retention capacity which is polydimethylsiloxane.
4. The carbon nanotube fiber-ionic gel artificial muscle and the method for testing the electric actuation performance thereof as claimed in claim 1, wherein: the substance added into the carbon nano tube fiber-ionic gel artificial muscle for improving the electric conduction capability of the artificial muscle is graphene.
5. The carbon nanotube fiber-ionic gel artificial muscle and the method for testing the electric actuation performance thereof as claimed in claim 1, wherein: the ionic gel liquid is prepared by the following steps:
step 1), tetraethylammonium tetrafluoroborate is weighed and added into propylene carbonate to prepare an electrolyte solution;
step 2), weighing polyvinylidene fluoride hexafluoropropylene, adding the polyvinylidene fluoride hexafluoropropylene into an acetone solution, continuously heating and stirring the mixture on a magnetic stirrer until white crystals in the solution are completely dissolved, and then diluting the concentration of the solution to obtain a polymer solution;
step 3) mixing the electrolyte solution and the polymer solution obtained in the steps 1) and 2) according to a volume ratio of 5: 1 preparing ionic gel liquid and adding potassium sulfate.
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| CN114872032A (en) * | 2022-04-22 | 2022-08-09 | 西北工业大学 | Electrically-driven artificial muscle based on integral tensioning structure |
| WO2023173839A1 (en) * | 2022-03-15 | 2023-09-21 | 中国科学院苏州纳米技术与纳米仿生研究所 | Electrochemical artificial muscle system and electrochemical artificial muscle testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114216771A (en) * | 2021-12-07 | 2022-03-22 | 北京工业大学 | Carbon nanotube fiber twisting experiment table and test experiment method |
| WO2023173839A1 (en) * | 2022-03-15 | 2023-09-21 | 中国科学院苏州纳米技术与纳米仿生研究所 | Electrochemical artificial muscle system and electrochemical artificial muscle testing device |
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