CN112921461A - Twistable double-helix fibrous artificial muscle and preparation method thereof - Google Patents
Twistable double-helix fibrous artificial muscle and preparation method thereof Download PDFInfo
- Publication number
- CN112921461A CN112921461A CN201911236613.4A CN201911236613A CN112921461A CN 112921461 A CN112921461 A CN 112921461A CN 201911236613 A CN201911236613 A CN 201911236613A CN 112921461 A CN112921461 A CN 112921461A
- Authority
- CN
- China
- Prior art keywords
- hydrogel
- carbon nanotube
- double
- artificial muscle
- composite fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/52—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated carboxylic acids or unsaturated esters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a twistable double-helix fibrous artificial muscle and a preparation method thereof, wherein the preparation method comprises the following steps: inserting a wire-drawing piece into the double-network hydrogel, pulling out the wire-drawing piece to enable the wire-drawing piece to draw out the filamentous double-network hydrogel from the double-network hydrogel to obtain hydrogel filaments, and enabling the hydrogel filaments to stand; enclosing the multi-walled carbon nanotube film outside the hydrogel filament, and dropwise adding an adhesive liquid to adhere the multi-walled carbon nanotube film to the surface of the hydrogel filament to obtain the carbon nanotube hydrogel composite fiber; and rotating one end of the carbon nano tube hydrogel composite fiber to obtain the double-helix fibrous artificial muscle. The double-helix fibrous artificial muscle is a novel flexible actuator, can generate twisting motion when exposed to water mist with the flow rate of 42.8mg/s for 24s, has the twisting angle of 1455 degrees/mm and the maximum rotating speed of 3178rpm, and returns to the original state 75s after the water mist is removed.
Description
Technical Field
The invention belongs to the technical field of fibrous artificial muscles, and particularly relates to a twistable double-helix fibrous artificial muscle and a preparation method thereof.
Background
Artificial muscle refers to a class of materials and devices that reversibly contract, expand, and rotate in response to an external stimulus (e.g., voltage, current, pressure, temperature, light). In recent years, the fiber type artificial muscles have attracted particular attention, allowing, despite their simple appearance, very complex driving actions: large angular rotational actuation and large telescopic drive. Meanwhile, the fiber has good flexibility and high anisotropy. A variety of different materials are widely used in the design of fibrous artificial muscles: polymers, carbon nanotubes, graphene, polymer/inorganic material composites, and some natural fibers such as silk and cotton, etc. The reason why the rotation and telescopic actuation can be generated:
1. the fiber generates actuation caused by fiber volume expansion caused by actions of mass transfer, thermal volume expansion, deformation and the like with the outside;
2. actuation by a change in order of the molecules;
3. actuation by varying the distance between the constituent fibers by different forces.
The fiber type artificial muscle has excellent driving performance and wide application prospect, so that more scholars participate in the research of the fiber type artificial muscle. In recent years, various novel fiber-type artificial muscles have been developed and applied to various fields. Foroughi et al first designed a fibrous artificial muscle that could be rotated in a simple three-electrode polarization system using carbon nanotube yarn. The carbon nanotube yarn is twisted by scientific researchers to produce fibrous artificial muscle thinner than hair, the artificial muscle is put into electrolyte solution, after the artificial muscle is electrified, double-layer charges enter the twisted carbon nanotube yarn to expand the volume of the carbon nanotube yarn and untwist fibers, so that the carbon nanotube yarn rotates and contracts the longitudinal length of the carbon nanotube yarn, and the artificial muscle returns to the original state when the carbon nanotube yarn is powered off. Lima et al, which use carbon nanotube yarn as a host and paraffin as an object to permeate into twisted carbon nanotube yarn, produced a fibrous artificial muscle with high power and capable of performing millions of cycles. This artificial muscle avoids the need for electrolytes or some special packaging. The fibrous artificial muscle designed by different materials can be applied to different stimulation environments, so that the fibrous artificial muscle has wider application prospect by searching for new materials and designing new structures.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of a double-helix fibrous artificial muscle.
Another object of the present invention is to provide a double spiral fibrous artificial muscle obtained by the above preparation method.
The purpose of the invention is realized by the following technical scheme.
A preparation method of double-helix fibrous artificial muscle comprises the following steps:
step 1, adding 2-4 parts by mass of vinyltriethoxysilane into 30-45 parts by mass of deionized water, stirring for 11-13 hours until oily liquid drops completely disappear to obtain a transparent dispersion of vinyl hybrid silica nanoparticles, mixing the transparent dispersion with water to obtain a transparent dispersion solution, adding 11-13 parts by mass of acrylic acid and 0.023-0.025 parts by mass of ammonium persulfate into 16-18 parts by volume of the transparent dispersion solution, and stirring for 30-40 min at room temperature of 20-25 ℃ to obtain a first solution;
in the technical scheme, the transparent dispersion in the transparent dispersion solution is 0.067-0.068 wt%.
In the above technical solution, when the unit of the mass fraction is g, the unit of the volume fraction is mL.
Step 2, reacting the first solution at 38-42 ℃ for 30-35 hours in an inert gas or nitrogen environment to obtain the double-network hydrogel;
step 3, inserting a wire drawing piece into the double-network hydrogel, pulling out the wire drawing piece to enable the wire drawing piece to draw out the filamentous double-network hydrogel from the double-network hydrogel to obtain hydrogel filaments, and enabling the hydrogel filaments to stand for 30-100 s;
in the step 3, the wire drawing member is a rod.
In the step 3, the length of the hydrogel filament is 30-35 cm.
Step 4, enclosing the multi-walled carbon nanotube film outside the hydrogel filament, and dropwise adding an adhesive liquid to adhere the multi-walled carbon nanotube film to the surface of the hydrogel filament to obtain the carbon nanotube hydrogel composite fiber;
in the step 4, when the multi-walled carbon nanotube film is surrounded outside the hydrogel filament, two ends of the hydrogel filament are respectively fixed.
In the step 4, the adhering liquid is ethanol.
In the step 4, the multi-wall carbon nanotube film is drawn from the multi-wall carbon nanotube array.
In the step 4, the width of the multi-walled carbon nanotube film is 5-6 mm.
In the step 4, the diameter of the carbon nanotube hydrogel composite fiber is 30-35 μm.
In the technical scheme, the multi-walled carbon nanotube film is wound outside the hydrogel filament along a cylindrical spiral line, and the spiral angle of the cylindrical spiral line is 10-85 degrees.
In the technical scheme, the length direction of the multi-wall carbon nanotube film is parallel to the length direction of the hydrogel filament, and the multi-wall carbon nanotube film is coated outside the hydrogel filament.
Step 5, rotating one end of the carbon nanotube hydrogel composite fiber to twist the carbon nanotube hydrogel composite fiber to obtain a twisted composite fiber, wherein the twisting density of the twisted composite fiber is 7000-8000 rpm;
and 6, twisting the 2 sections of the twisted composite fibers which are positioned at two sides of the midpoint of the twisted composite fibers to obtain the double-helix fibrous artificial muscle, wherein the twisting direction of the twisted sections is opposite to that of the carbon nanotube hydrogel composite fibers.
In the step 6, the method for twisting the 2 winding sections comprises the following steps: horizontally arranging the twisted composite fibers, loading a weight with the mass of 29-31 g at the middle point of the twisted composite fibers, and approaching the 2 sections of the winding sections to be attached to each other until the 2 sections of the winding sections are automatically twisted together.
In the above technical solution, the operating environment of the preparation method is: the temperature is 20-25 ℃, and the relative humidity is 20-30%.
The double-helix fibrous artificial muscle obtained by the preparation method.
The invention has the beneficial effects that:
1. the double-helix fibrous artificial muscle is a novel flexible actuator, can generate twisting motion when exposed to water mist with the flow rate of 42.8mg/s, has the twisting angle of 1455 degrees/mm and the maximum rotation speed of 3178rpm, and returns to the original state after the water mist is removed.
2. According to the invention, the multi-walled carbon nanotube film is used as a protective shell to wrap the hydrogel filament to prepare the carbon nanotube hydrogel composite fiber, the mechanical property of the double-network hydrogel is reduced when excessive water is absorbed, the multi-walled carbon nanotube film can increase the mechanical property, and the hydrogel filament is prevented from being broken due to excessive water absorption.
3. The invention wraps the multi-wall carbon nanotube film outside the hydraulic filament in different modes, and can regulate and control the actuating performance of the artificial muscle.
Drawings
FIG. 1 is a diagram illustrating the manner in which a multi-walled carbon nanotube film is wrapped around a hydrogel filament in example 1 of the present invention;
FIG. 2 shows the manner in which the multi-walled carbon nanotube film is wrapped around the hydrogel filament in example 2 of the present invention (α is a helical angle);
FIG. 3a is a photograph of hydrogel filaments and carbon nanotube hydrogel composite fibers before they absorb water;
FIG. 3b is a photograph of hydrogel filaments and carbon nanotube hydrogel composite fibers after they have absorbed water;
FIG. 4a is SEM of double helix fibrous artificial muscle before water absorption;
FIG. 4b is a SEM of double helix fibrous artificial muscle after water absorption;
fig. 5 is a graph showing the change over time of the maximum torsion angle and the maximum rotation speed of the double spiral fibrous artificial muscle obtained in example 1.
Detailed Description
The technical scheme of the invention is further explained by combining specific examples.
Table 1 sources of drugs involved in the examples
TABLE 2 model of the instruments involved in the examples
The operating environment of the following preparation method is as follows: the temperature is 20-25 ℃, and the relative humidity is 20%.
The width of the multi-walled carbon nanotube film is 5 mm.
Example 1
A preparation method of double-helix fibrous artificial muscle comprises the following steps:
step 1, adding 3.8g of vinyltriethoxysilane into 30g of deionized water, vigorously stirring for 12 hours until oily liquid drops completely disappear to obtain a transparent dispersion of vinyl hybrid silica nanoparticles, and mixing the transparent dispersion with water to obtain a transparent dispersion solution, wherein the transparent dispersion in the transparent dispersion solution is 0.067 wt%. Adding 12g of acrylic acid and 0.024g of ammonium persulfate into 18mL of transparent dispersion solution, and stirring at the room temperature of 20-25 ℃ for 30min to obtain a first solution;
step 2, pouring the first solution into a centrifuge tube, introducing argon into the centrifuge tube to fully discharge air in the centrifuge tube, quickly sealing the centrifuge tube, reacting the first solution in an oil bath at 40 +/-2 ℃ for 30 hours, and carrying out free radical polymerization in the reaction process to obtain the double-network hydrogel;
step 3, inserting a cylindrical thin iron rod into the double-network hydrogel, quickly pulling out the cylindrical thin iron rod, pulling out the filamentous double-network hydrogel with the length of 30cm from the double-network hydrogel by the cylindrical thin iron rod to obtain a hydrogel filament, and standing the hydrogel filament for 100 seconds;
and 4, fixing two ends of the hydrogel filament respectively, wherein the two ends of the hydrogel filament can be fixed through a square frame, and the two ends of the hydrogel filament are connected with 2 opposite edges of the square frame respectively during fixing. The length direction of the multi-walled carbon nanotube film is parallel to the length direction of the hydrogel filament, and the multi-walled carbon nanotube film is coated outside the hydrogel filament, as shown in fig. 1. Dripping ethanol to adhere the multi-wall carbon nanotube film on the surface of the hydrogel filament to obtain the carbon nanotube hydrogel composite fiber with the diameter of 35 mu m;
and 5, connecting one end of the carbon nanotube hydrogel composite fiber with an output shaft of a motor, fixing the other end of the carbon nanotube hydrogel composite fiber as a fixed end, and starting the motor to twist the carbon nanotube hydrogel composite fiber to obtain the twisted composite fiber, wherein the twisting density of the twisted composite fiber is 8000 rpm, the length of the carbon nanotube hydrogel composite fiber is continuously shortened in the twisting process, and the distance between the fixed end of the carbon nanotube hydrogel composite fiber and the output shaft of the motor needs to be manually adjusted to prevent the carbon nanotube hydrogel composite fiber from being pulled apart.
And 6, twisting the 2 sections of the twisted composite fibers which are positioned at two sides of the midpoint of the twisted composite fibers to obtain the double-helix fibrous artificial muscle, wherein the twisting direction of the twisted sections is opposite to that of the carbon nano tube hydrogel composite fibers. The method for twisting the 2 winding sections comprises the following steps: the twisted composite fiber is horizontally suspended, a weight with the mass of 30g is loaded at the midpoint of the twisted composite fiber, then the 2 sections of the winding sections are mutually close to be attached, and at the moment, the 2 sections of the winding sections are automatically twisted together.
Examples 2 to 5
A preparation method of double-helix fibrous artificial muscle comprises the following steps:
step 1, adding 3.8g of vinyltriethoxysilane into 30g of deionized water, vigorously stirring for 12 hours until oily liquid drops completely disappear to obtain a transparent dispersion of vinyl hybrid silica nanoparticles, and mixing the transparent dispersion with water to obtain a transparent dispersion solution, wherein the transparent dispersion in the transparent dispersion solution is 0.067 wt%. Adding 12g of acrylic acid and 0.024g of ammonium persulfate into 18mL of transparent dispersion solution, and stirring at the room temperature of 20-25 ℃ for 30min to obtain a first solution;
step 2, pouring the first solution into a centrifuge tube, introducing argon into the centrifuge tube to fully discharge air in the centrifuge tube, quickly sealing the centrifuge tube, reacting the first solution in an oil bath at 40 +/-2 ℃ for 30 hours, and carrying out free radical polymerization in the reaction process to obtain the double-network hydrogel;
step 3, inserting a cylindrical thin iron rod into the double-network hydrogel, quickly pulling out the cylindrical thin iron rod, pulling out the filamentous double-network hydrogel with the length of 30cm from the double-network hydrogel by the cylindrical thin iron rod to obtain a hydrogel filament, and standing the hydrogel filament for 100 seconds;
and 4, fixing two ends of the hydrogel filament respectively, wherein the two ends of the hydrogel filament can be fixed through a square frame, and the two ends of the hydrogel filament are connected with 2 opposite edges of the square frame respectively during fixing. The multiwalled carbon nanotube film was wound outside the hydrogel filament along a cylindrical helix direction, as shown in fig. 2, the helix angle in the cylindrical helix direction is shown in table 3. Dripping ethanol to adhere the multi-wall carbon nanotube film on the surface of the hydrogel filament to obtain the carbon nanotube hydrogel composite fiber with the diameter of 35 mu m;
and 5, connecting one end of the carbon nanotube hydrogel composite fiber with an output shaft of a motor, fixing the other end of the carbon nanotube hydrogel composite fiber as a fixed end, and starting the motor to twist the carbon nanotube hydrogel composite fiber to obtain the twisted composite fiber, wherein the twisting density of the twisted composite fiber is 8000 rpm, the length of the carbon nanotube hydrogel composite fiber is continuously shortened in the twisting process, and the distance between the fixed end of the carbon nanotube hydrogel composite fiber and the output shaft of the motor needs to be manually adjusted to prevent the carbon nanotube hydrogel composite fiber from being pulled apart.
And 6, twisting the 2 sections of the twisted composite fibers which are positioned at two sides of the midpoint of the twisted composite fibers to obtain the double-helix fibrous artificial muscle, wherein the twisting direction of the twisted sections is opposite to that of the carbon nano tube hydrogel composite fibers. The method for twisting the 2 winding sections comprises the following steps: the twisted composite fiber is horizontally suspended, a weight with the mass of 30g is loaded at the midpoint of the twisted composite fiber, then the 2 sections of the winding sections are mutually close to be attached, and at the moment, the 2 sections of the winding sections are automatically twisted together.
TABLE 3
The double spiral fibrous artificial muscle obtained in examples 1 to 5 was cut to 6cm and subjected to the following test.
Exposing the double-helix fibrous artificial muscle in water mist, recording by using a high-speed camera, and then performing data analysis frame by using computer software to obtain the stretching stroke, the maximum torsion angle and the maximum torsion angle of the double-helix fibrous artificial muscle. The specific operation is as follows:
the double-helix fibrous artificial muscles obtained in examples 1 to 5 were exposed to water mist at a flow rate of 42.8mg/s, and the twisting motion (rotation) of the double-helix fibrous artificial muscles that rotated itself was immediately started, and the length of the double-helix fibrous artificial muscles obtained in example 1 was shortened, the length of the double-helix fibrous artificial muscles obtained in examples 2 to 5 was extended, and the stretching stroke of the double-helix fibrous artificial muscles was as shown in table 4. Exposing the double-helix fibrous artificial muscle in water mist for 24s, removing the water mist, and recovering the double-helix fibrous artificial muscle obtained by implementing 1-5 to an initial state completely in the 75 th s after removing the water mist along with the return of the relative humidity to the environmental condition (the relative humidity is 20%). The period of one cycle was 100s, wherein the double spiral fiber-shaped artificial muscle was exposed to water mist for 25s, and the water mist was removed from the 26 th s until the end of the whole cycle, and the torsion angle and the rotation speed of the double spiral fiber-shaped artificial muscle obtained in example 1 varied with time as shown in fig. 5, and it can be seen that the maximum torsion angle was 1455 °/mm and the maximum rotation speed was 3178rpm in one cycle. The torsion angle of the double-helix fibrous artificial muscle is gradually increased along with the increase of the exposure time in the water mist, and reaches the maximum torsion angle of 1455 degrees/mm at 10s, but the torsion angle cannot be kept stable, and the phenomenon of rotating a small amount of angle in the opposite direction is generated; the rotation speed of the double-helix fibrous artificial muscle is rapidly increased along with the increase of the time of water mist driving, and rapidly reduced after reaching the maximum value of 3178rpm at 8s until the rotation speed of the double-helix fibrous artificial muscle is not reduced to 0. After the water mist is removed, the torsion angle of the double-helix fibrous artificial muscle is gradually reduced along with the increase of the time for removing the water mist, the double-helix fibrous artificial muscle is restored to the original state, the rotation speed is increased firstly and then reduced during restoration, and the maximum value under the water mist driving cannot be reached.
The maximum twisting angle and the maximum rotation speed of the double spiral fibrous artificial muscle during the twisting motion in which the double spiral fibrous artificial muscle is self-rotated are shown in table 4.
The test procedures for the tensile stroke, maximum torsion angle and maximum torsion angle are as follows:
stretching stroke (%): the original length of the double-helix fibrous artificial muscle is l0The length of the double-helix fibrous artificial muscle after being driven in the water mist generated by the humidifier is l, and the definition of the double-helix fibrous artificial muscle after being driven is that the double-helix fibrous artificial muscle stops rotating and the length is not changed any more, and the stretching stroke is as follows:
(l-l) elongation stroke [% ]0)/l0×100％
The number of rotation turns: the number of turns of the double-helix fibrous artificial muscle is obtained by a high-speed camera.
Torsion angle (degree/mm) × 360 deg./l
The maximum torsion angle is the maximum value of the torsion angle.
Maximum rotation speed: obtaining a frame with the maximum rotation speed of the double-spiral fibrous artificial muscle through a high-speed camera as DiD isiThe previous frame is defined as Di-1，DiCompared with Di-1The number of turns is D△。
Maximum rotation speed (r.p.m) ═ D△X number of frames in one second of high-speed camera x 60
TABLE 4
The double helix fibrous artificial muscle obtained in example 5 was closely attached to a sample stage of a scanning electron microscope to be tested. After the test, the double-helix fibrous artificial muscle was taken off, driven with water mist at a flow rate of 42.8mg/s for 30s, and the double-helix fibrous artificial muscle was closely attached to the sample stage again, and scanned at the same position as before. FIG. 4a shows a scanning electron microscope before water mist driving, and FIG. 4b shows a scanning electron microscope after water mist 30 s.
Comparative example
Taking 3cm of hydrogel filament obtained in step 3 of example 1 and 3cm of carbon nanotube hydrogel composite fiber obtained in step 4 for comparison, placing the hydrogel filament and the carbon nanotube hydrogel composite fiber in 2 partitions of 1 culture dish, as shown in fig. 3a, wherein the partitions are not communicated with each other, and are in an open environment with a relative humidity of 20% RH at room temperature. Deionized water was added to each of the 2 partitions, and it was found that the hydrogel filaments were not broken due to excessive water absorption without the protection of the multi-walled carbon nanotube film, and the carbon nanotube-hydrogel composite fibers were not broken, as shown in fig. 3 b.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (10)
1. A preparation method of double-helix fibrous artificial muscle is characterized by comprising the following steps:
step 1, adding 2-6 parts by mass of vinyl triethoxysilane into 30-45 parts by mass of deionized water, stirring for 11-15 hours until oily liquid drops completely disappear to obtain a transparent dispersion of vinyl hybrid silica nanoparticles, mixing the transparent dispersion with water to obtain a transparent dispersion solution, adding 11-15 parts by mass of acrylic acid and 0.02-0.03 part by mass of ammonium persulfate into 15-20 parts by volume of the transparent dispersion solution, and stirring for 30-60 minutes at room temperature of 20-25 ℃ to obtain a first solution;
step 2, reacting the first solution at 35-45 ℃ for 30-35 hours in an inert gas or nitrogen environment to obtain the double-network hydrogel;
step 3, inserting a wire drawing piece into the double-network hydrogel, pulling out the wire drawing piece to enable the wire drawing piece to draw out the filamentous double-network hydrogel from the double-network hydrogel to obtain hydrogel filaments, and enabling the hydrogel filaments to stand for 30-100 s;
step 4, enclosing the multi-walled carbon nanotube film outside the hydrogel filament, and dropwise adding an adhesive liquid to adhere the multi-walled carbon nanotube film to the surface of the hydrogel filament to obtain the carbon nanotube hydrogel composite fiber;
step 5, rotating one end of the carbon nanotube hydrogel composite fiber to twist the carbon nanotube hydrogel composite fiber to obtain a twisted composite fiber, wherein the twisting density of the twisted composite fiber is 7000-8000 rpm;
and 6, twisting the 2 sections of the twisted composite fibers which are positioned at two sides of the midpoint of the twisted composite fibers to obtain the double-helix fibrous artificial muscle, wherein the twisting direction of the twisted sections is opposite to that of the carbon nanotube hydrogel composite fibers.
2. The method according to claim 1, wherein the multiwalled carbon nanotube film is wound outside the hydrogel filament along a cylindrical helix direction, and the helix angle of the cylindrical helix direction is 10-85 °.
3. The method according to claim 1, wherein the multi-walled carbon nanotube film is coated outside the hydrogel filament by allowing the multi-walled carbon nanotube film to have a longitudinal direction parallel to a longitudinal direction of the hydrogel filament.
4. The production method according to claim 2 or 3, wherein in the step 3, the length of the hydrogel filament is 30 to 35 cm.
5. The production method according to claim 4, wherein in the step 4, the adhering liquid is ethanol;
in the step 4, the multi-wall carbon nanotube film is a film drawn from a multi-wall carbon nanotube array;
in the step 4, the width of the multi-walled carbon nanotube film is 5-6 mm;
in the step 4, the diameter of the carbon nanotube hydrogel composite fiber is 30-35 μm.
6. The manufacturing method according to claim 5, wherein in the step 6, the twisting of the 2-segment wound section is realized by: and horizontally arranging the twisted composite fiber, loading a weight at the midpoint of the twisted composite fiber, and approaching the 2 sections of the winding sections to be attached to each other until the 2 sections of the winding sections are automatically twisted together.
7. The method according to claim 1, wherein the transparent dispersion in the transparent dispersion solution is 0.06 to 0.07 wt%.
8. The method according to claim 1, wherein the unit of the volume fraction is mL when the unit of the mass fraction is g.
9. The method of claim 1, wherein the method is performed in an environment that: the temperature is 20-25 ℃, and the relative humidity is 20-30%.
10. The double-helix fibrous artificial muscle obtained by the preparation method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236613.4A CN112921461B (en) | 2019-12-05 | 2019-12-05 | Twistable double-helix fibrous artificial muscle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236613.4A CN112921461B (en) | 2019-12-05 | 2019-12-05 | Twistable double-helix fibrous artificial muscle and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112921461A true CN112921461A (en) | 2021-06-08 |
| CN112921461B CN112921461B (en) | 2022-06-07 |
Family
ID=76161035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911236613.4A Active CN112921461B (en) | 2019-12-05 | 2019-12-05 | Twistable double-helix fibrous artificial muscle and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112921461B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657761A (en) * | 2022-04-28 | 2022-06-24 | 广州大学 | Preparation method of high-performance protein fiber artificial muscle actuator |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040106881A (en) * | 2003-06-12 | 2004-12-18 | 학교법인 한양학원 | An ipn hydrogel based on pva/pdadmac and its applications |
| CN102418164A (en) * | 2011-11-16 | 2012-04-18 | 上海工程技术大学 | Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof |
| CN104080962A (en) * | 2011-12-01 | 2014-10-01 | 康沃特克科技公司 | A yarn comprising gel-forming filaments or fibres |
| CN105155011A (en) * | 2015-07-21 | 2015-12-16 | 东华大学 | Preparation method for continuous micron-size polyethylene glycol diacrylate (PEGDA) hydrogel fiber |
| CN106471167A (en) * | 2014-07-03 | 2017-03-01 | 东洋纺株式会社 | High function multifilament |
| CN109476919A (en) * | 2016-08-03 | 2019-03-15 | 美国陶氏有机硅公司 | Elastic composition and its application |
-
2019
- 2019-12-05 CN CN201911236613.4A patent/CN112921461B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040106881A (en) * | 2003-06-12 | 2004-12-18 | 학교법인 한양학원 | An ipn hydrogel based on pva/pdadmac and its applications |
| CN102418164A (en) * | 2011-11-16 | 2012-04-18 | 上海工程技术大学 | Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof |
| CN104080962A (en) * | 2011-12-01 | 2014-10-01 | 康沃特克科技公司 | A yarn comprising gel-forming filaments or fibres |
| CN106471167A (en) * | 2014-07-03 | 2017-03-01 | 东洋纺株式会社 | High function multifilament |
| CN105155011A (en) * | 2015-07-21 | 2015-12-16 | 东华大学 | Preparation method for continuous micron-size polyethylene glycol diacrylate (PEGDA) hydrogel fiber |
| CN109476919A (en) * | 2016-08-03 | 2019-03-15 | 美国陶氏有机硅公司 | Elastic composition and its application |
Non-Patent Citations (2)
| Title |
|---|
| 王吉岱: "一种新型液压人工肌肉的设计研究", 《液压与气动》 * |
| 由程炜: "水凝胶碳纳米管复合纤维人工肌肉的制备与驱动性能研究", 《硕士学位论文》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114657761A (en) * | 2022-04-28 | 2022-06-24 | 广州大学 | Preparation method of high-performance protein fiber artificial muscle actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112921461B (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112921461B (en) | Twistable double-helix fibrous artificial muscle and preparation method thereof | |
| CN104392845B (en) | A kind of stretchable linear supercapacitor and preparation method of lithium ion battery | |
| CN112921459B (en) | Spiral winding type artificial muscle and preparation method and application thereof | |
| Zhou et al. | The power of fiber twist | |
| WO2024016518A1 (en) | High-power bidirectional driving biomimetic muscle fiber, and preparation method therefor and application thereof | |
| Xu et al. | Artificial muscle with reversible and controllable deformation based on stiffness-variable carbon nanotube spring-like nanocomposite yarn | |
| US9242443B2 (en) | Method for making carbon nanotube composite hollow structure | |
| CN112680966B (en) | Composite fiber and preparation method and application thereof | |
| US20100297441A1 (en) | Preparation of fibers from a supported array of nanotubes | |
| CN103904357B (en) | A kind of stretchable wire lithium ion battery and preparation method thereof | |
| US12006598B2 (en) | Sheath-run artificial muscles and methods of use thereof | |
| US20120045644A1 (en) | Carbon nanotube wire composite structure and method for making the same | |
| Sun et al. | High performance carbon nanotube/polymer composite fibers and water-driven actuators | |
| CN108774381B (en) | Preparation method of bidirectional-driving carbon nanotube spiral fiber composite material structure | |
| CN115627569A (en) | Manufacturing method for realizing large-strain artificial muscle by utilizing super twisting | |
| Huang et al. | Electrospun polyamide-6 nanofiber for hierarchically structured and multi-responsive actuator | |
| You et al. | Highly improved water tolerance of hydrogel fibers with a carbon nanotube sheath for rotational, contractile and elongational actuation | |
| CN114790657B (en) | Bionic neuromuscular fiber and preparation method and application thereof | |
| CN103390467A (en) | Elastic conductive fiber manufacturing method | |
| WO2024124960A1 (en) | Electric-driven artificial muscle fiber having bidirectional linear strain and preparation method therefor | |
| CN111268639A (en) | Multi-stimulus response actuating film and preparation and application thereof | |
| CN112109404A (en) | Flexible driving film based on liquid/steam response and preparation method and application thereof | |
| CN209278065U (en) | Carbon nano-tube fibre yarn Composite thermal expansion material type photothermal laser driver | |
| CN115960396B (en) | Preparation method and electric drive control method of bionic artificial muscle bundling structure | |
| CN107579229A (en) | A kind of super flexible silicon aeration cell fiber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |