CN118108972A - Light response screw driver based on biomass ink printing and preparation method and application thereof - Google Patents
Light response screw driver based on biomass ink printing and preparation method and application thereof Download PDFInfo
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- CN118108972A CN118108972A CN202410236775.2A CN202410236775A CN118108972A CN 118108972 A CN118108972 A CN 118108972A CN 202410236775 A CN202410236775 A CN 202410236775A CN 118108972 A CN118108972 A CN 118108972A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 230000004298 light response Effects 0.000 title claims abstract description 24
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- 239000002105 nanoparticle Substances 0.000 claims abstract description 52
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 49
- 241000238371 Sepiidae Species 0.000 claims abstract description 45
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- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
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Classifications
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
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- Health & Medical Sciences (AREA)
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Abstract
A light response screw driver based on biomass ink printing and a preparation method and application thereof belong to the field of material science, wherein the light response screw driver comprises an cuttlefish ink nanoparticle/nanocellulose ink layer and a flexible polymer layer, and ink lines of the cuttlefish ink nanoparticle/nanocellulose ink layer are printed on a flexible polymer film in an equidistant parallel manner. The method comprises the following steps: and uniformly stirring the cuttlefish juice at room temperature, and centrifuging for multiple times to obtain cuttlefish juice nano particles. Uniformly mixing cuttlefish juice nano particles and nanocellulose according to a certain mass ratio, and heating, stirring and concentrating to obtain the high-viscosity composite ink. And (3) printing the composite ink lines on the flexible polymer film in parallel at a certain angle and equidistant by a 3D printing technology, and drying. The light response screw driver can realize reversible and controllable screw deformation in illumination, and has high response speed and large deformation degree.
Description
Technical Field
The invention belongs to the field of material science, and particularly relates to a light response screw driver based on biomass ink printing and a preparation method and application thereof.
Background
The soft robot is a novel intelligent robot which is made of soft materials, can convert other forms of energy into mechanical energy and realize autonomous movement, and is widely applied to the fields of man-machine interaction, aerospace, medical service, search and rescue detection, industrial production and the like. Flexible drives are an important component of soft robots that can produce specific mechanical deformations under external environmental (e.g., light, humidity, electricity, heat, magnetism, etc.) stimuli. However, most of the current double-layer flexible drivers consist of an active layer capable of responding to stimulus and an inert layer, and only simple bending deformation can be completed, so that the application of the driver is greatly limited. By selectively depositing the active layer on the inert layer, complex deformations of the flexible drive can be achieved with an uneven distribution of stresses under stimulation. Therefore, it is necessary to develop a functional ink based on a stimulus-responsive material and to prepare a driver having a patterned structure by a 3D printing technique. The existing photothermal response stimulating materials mainly comprise metal nano particles, transition metal carbide or nitride (MXene), reduced Graphene Oxide (RGO), carbon Nanotubes (CNTs) and the like. However, the materials have complex preparation process, high cost, are derived from non-renewable resources and are not friendly to the environment. The black carp juice mainly comprises natural melanin nano particles, has excellent photo-thermal conversion capability, and is a green photo-thermal conversion agent. Nanocellulose is a nanomaterial derived from natural cellulose, has extremely high aspect ratio and solubility, maintains high viscosity at rest, and has significant shear thinning behavior at high shear force, and is commonly used as a viscosity regulator for inks.
In summary, it is important to compound cuttlefish ink nanoparticles with photothermal conversion properties with nanocellulose with shear thinning properties to prepare a biomass ink, and print the ink onto a flexible polymer substrate based on 3D printing technology to prepare a photo-responsive actuator.
Disclosure of Invention
Aiming at the problems of single deformation mode, higher material cost, complex preparation process and the like of the conventional flexible driver, the invention provides a light response screw driver based on biomass ink printing and a preparation method and application thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A light responsive screw driver based on biomass ink printing, the light responsive screw driver comprising an inkfish juice nanoparticle/nanocellulose ink layer and a flexible polymer layer, the ink lines of the inkfish juice nanoparticle/nanocellulose ink layer being printed on the flexible polymer layer in equidistant parallel.
Further, the thickness of the cuttlefish ink nanoparticle/nanocellulose ink layer is 5-30 μm, and the thickness of the flexible polymer layer is 10-50 μm.
Further, the nanocellulose is one of cellulose nanofiber, bacterial cellulose and cellulose nanowhisker.
Further, the flexible polymer is one of polyethylene, polypropylene, polyimide and polyethylene terephthalate.
The preparation method of the light response screw driver based on biomass ink printing comprises the following steps:
Step one: preparation of cuttlefish juice nano-particles:
Uniformly stirring cuttlefish juice extracted from cuttlefish ink sac at room temperature, centrifuging at low speed to collect supernatant, centrifuging supernatant at high speed to collect precipitate, and vacuum freeze-drying the precipitate to obtain cuttlefish juice nanoparticles; the vacuum freeze drying temperature is controlled at about 50 ℃ below zero, and the time is controlled to be more than 48 hours;
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink:
Adding cuttlefish juice nano particles into a nano cellulose aqueous solution, uniformly stirring at room temperature, and continuously stirring and concentrating the mixed solution on a heating table to obtain high-viscosity composite ink;
Step three: preparation of light-responsive screw driver:
Filling the composite ink into a syringe with a needle, mounting the syringe on a 3D printer, and connecting the syringe to an air pump; placing the flexible polymer film on a printing platform and sucking the flexible polymer film by a vacuum system; and designing a printing program, printing ink lines and the long side of the rectangular polymer film on the flexible polymer layer at a certain angle and equidistant in parallel, and removing the film from the printing platform after drying under the environmental condition to obtain the light response screw driver.
Further, in the first step, the inkfish juice is stirred for 2-6 hours at room temperature; controlling the rotation speed of the first low-speed centrifugation to be 3000-5000r/min for 10-30min; controlling the rotation speed of the second high-speed centrifugation to 9000-11000r/min for 10-30min. The range of the first centrifugal speed is used for removing large particles and impurities in the solution; the second high speed centrifugation is to collect small size particles, and too low a rotational speed will not collect cuttlefish juice nanoparticles.
Further, in the second step, the concentration of the nano cellulose aqueous solution is 5-10mg/ml; the temperature of the heating table is 60-90 ℃; the mass concentration of the high-viscosity composite ink is 5-10wt%, and the mass concentration of the high-viscosity composite ink refers to the total concentration of the cuttlefish ink nano particles and the nanocellulose in the solution, and the concentration is more suitable for printing.
Further, in the third step, the mass ratio of the cuttlefish juice nano particles to the nano cellulose is 0.1-10:1.
Further, in the third step, the width of the parallel ink lines is 150-1000 μm; the spacing between the parallel ink lines is 150-1000 mu m; the included angle between the ink lines and the long side of the rectangular polymer film is 5-85 degrees; controlling the distance between the printing nozzle and the film to be 50-100 mu m; controlling the printing air pressure to be 5-20KPa; the movement speed of the printing nozzle is controlled to be 1-5mm/s.
The application of the light response screw driver based on biomass ink printing is characterized in that: the light responsive screw driver changes from a flat state to a screw state when exposed to light, the screw deformed state of which is related to the printing angle, and the light responsive screw driver returns to the flat state when ambient light is turned off.
Further, the illumination is light generated by xenon lamps, infrared lamps and the sun.
The driving deformation principle of the light response screw driver designed by the invention is as follows: the cuttlefish juice nano particles have excellent light-heat conversion performance, when the light-responsive screw driver is exposed to light, the cuttlefish juice nano particles convert light energy into heat energy, meanwhile, the lower polymer film is heated, the ink layer is contracted due to water loss, the polymer film is expanded due to temperature rise, the driver is bent towards one side of the ink layer, the parallel ink lines form a certain angle with the rectangular driver, the driver tends to bend along the direction perpendicular to the line orientation under the restriction of mechanical action, and therefore spiral bending is generated, and the spiral state is determined by the included angle between the lines and the long sides of the film. When the light is turned off, the ink layer absorbs water molecules to expand, the temperature of the film layer decreases and contracts, and the light returns to the original state in response to deformation of the screw driver.
Compared with the prior art, the invention has the beneficial effects that:
The biomass printing ink is prepared by taking the cuttlefish juice and the nanocellulose as raw materials, and the biomass printing ink is low in material cost, renewable, environment-friendly and simple in preparation method. The invention prepares the light response spiral driver based on biomass ink through 3D printing, which is a rapid and extensible preparation process, meanwhile, the width and the interval of the ink lines can be easily designed, the spiral deformation response speed of the light driver is high, and the deformation degree of the light driver can be designed.
Drawings
FIG. 1 is a scanning electron micrograph of the ink nanoparticle obtained in step one of example 1;
FIG. 2 is a macroscopic photograph of the composite ink obtained in step two of example 1;
FIG. 3 is a macroscopic photograph of the 15℃printed light-responsive screw drive obtained in step three of example 1;
FIG. 4 is a macroscopic photograph of the 30℃printed light-responsive screw drive obtained in step three of example 1;
FIG. 5 is a macroscopic photograph of the 45 printed light responsive screw drive obtained in step three of example 1;
FIG. 6 is a macroscopic photograph of the 60 printed light responsive screw drive obtained in step three of example 1;
FIG. 7 is a macroscopic photograph of the 75 printed light responsive screw drive obtained in step three of example 1;
FIG. 8 is a photograph of the 15℃printed light-responsive screw drive obtained in step three of example 1 after illumination;
FIG. 9 is a photograph of the 30℃printed light-responsive screw drive obtained in step three of example 1 after illumination;
FIG. 10 is a photograph of the 45℃printed light-responsive screw drive obtained in step three of example 1 after illumination;
FIG. 11 is a photograph of the 60℃printed light-responsive screw drive obtained in step three of example 1 after illumination;
FIG. 12 is a photograph of the 75℃printed light-responsive screw drive obtained in step three of example 1 after illumination.
Detailed Description
The following description of the present invention is provided with reference to fig. 1-12, but is not limited thereto, and modifications and equivalents of the present invention should be made without departing from the spirit and scope of the present invention.
Detailed description of the preferred embodiments
The light response screw driver based on biomass ink printing comprises an cuttlefish ink nano particle/nano cellulose ink layer and a flexible polymer layer, wherein ink lines of the cuttlefish ink nano particle/nano cellulose ink layer are printed on the flexible polymer layer in parallel at equal intervals.
Further, the thickness of the cuttlefish ink nanoparticle/nanocellulose ink layer is 5-30 mu m, and the thickness of the flexible polymer layer is 10-50 mu m.
Detailed description of the preferred embodiments
The preparation method of the light response screw driver based on biomass ink printing in the embodiment one comprises the following steps:
Step one: preparation of cuttlefish juice nano-particles:
Mixing the cuttlefish juice extracted from cuttlefish bag at room temperature for 2-6 hr, centrifuging at 3000-5000r/min for 10-30min, and collecting supernatant. Centrifuging the supernatant at 9000-11000r/min for 10-30min, and collecting precipitate. And (5) performing vacuum freeze drying on the precipitate to obtain cuttlefish juice nano particles.
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink:
Adding cuttlefish juice nanoparticles into nanocellulose aqueous solution (5-10 mg/ml), and stirring, wherein the mass ratio of cuttlefish juice nanoparticles to nanocellulose is controlled to be 0.1-10:1. Continuously stirring and concentrating the mixed solution on a heating table at 60-90 ℃ to obtain the high-viscosity composite ink with the mass fraction of 5-10 wt%.
Step three: preparation of light-responsive screw driver:
First, the composite ink was loaded into a syringe with a needle, mounted on a 3D printer, and connected to an air pump. The flexible polymer film is placed on a printing platform and sucked up by a vacuum system. Designing a printing program, and controlling the distance between a printing nozzle and a film to be 50-100 mu m; controlling the printing air pressure to be 5-20KPa; the movement speed of the printing nozzle is controlled to be 1-5mm/s. Printing ink lines and the long side of a rectangular polymer film on a flexible polymer layer at equal intervals at an angle of 5-85 degrees, controlling the width of the lines to be 150-1000 mu m, controlling the distance between the lines to be 150-1000 mu m, and removing the film from a printing platform after drying under the environmental condition to obtain the light response screw driver.
Further, the nanocellulose is one of cellulose nanofiber, bacterial cellulose and cellulose nanowhisker.
Further, the flexible polymer is one of polyethylene, polypropylene, polyimide and polyethylene terephthalate.
Detailed description of the preferred embodiments
Detailed description of the invention the application of the optically responsive screw drive based on printing with biomass ink is: the light responsive screw driver changes from a flat state to a screw state when exposed to light, the screw deformed state of which is related to the printing angle, and the light responsive screw driver returns to the flat state when ambient light is turned off.
The following examples are used to demonstrate the beneficial effects of the present invention
Example 1
A light response screw driver based on biomass ink printing and a preparation method and application thereof comprise the following steps:
Step one: preparation of cuttlefish juice nano-particles: the cuttlefish juice extracted from cuttlefish ink sac is stirred at room temperature for 6h, and centrifuged at 5000r/min for 30min to collect supernatant. The supernatant was centrifuged at 9000r/min for 30min to collect the precipitate. And (5) performing vacuum freeze drying on the precipitate to obtain cuttlefish juice nano particles.
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink: adding cuttlefish juice nano particles into a cellulose nanofiber aqueous solution (10 mg/ml) and stirring, and controlling the mass ratio of the cuttlefish juice nano particles to the nanocellulose to be 1:1. The mixed solution is continuously stirred and concentrated on a heating table at 60 ℃ to obtain the high-viscosity composite ink with the mass fraction of 5 wt%.
Step three: preparation of light-responsive screw driver: first, the composite ink was loaded into a syringe with a needle, mounted on a 3D printer, and connected to an air pump. The polyethylene film was placed on a printing platform and sucked by a vacuum system. Designing a printing program, and controlling the distance between a printing nozzle and a film to be 70 mu m; controlling the printing air pressure to be 10KPa; the movement speed of the printing nozzle was controlled to be 5mm/s. Printing ink lines and the long sides of the rectangular polymer film on the flexible polymer layer at equal intervals in an angle of 15 degrees, 30 degrees, 45 degrees, 60 degrees and 75 degrees, controlling the width of the lines to be 700 microns, controlling the distance between the lines to be 300 microns, and removing the film from a printing platform after drying under the environmental condition to obtain the light response screw driver.
FIG. 1 is a scanning electron micrograph of the ink nanoparticle obtained in step one of this example. As can be seen from the figure, the cuttlefish juice nanoparticles have a spherical structure with a diameter of between 100 and 200 nm.
FIG. 2 is a macroscopic photograph of the high viscosity composite ink obtained in step two of this example. It can be seen that the composite ink with a mass fraction of 5wt% exhibits a certain viscosity and can be used in an extrusion 3D printing process.
Fig. 3-7 are macroscopic photographs of the different angle printed optically responsive screw drive obtained in step three of this embodiment. The ink layer is printed on the rectangular polymer film in parallel, and the included angles between the ink lines and the long sides of the rectangular polymer film are 15 degrees, 30 degrees, 45 degrees, 60 degrees and 75 degrees respectively.
Fig. 8-12 are photographs of the optically responsive screw drive obtained in step three of this embodiment, printed at different angles after illumination. It can be seen that after illumination, the driver is deformed helically, and the degree of helix increases gradually as the included angle increases.
Example 2
A light response screw driver based on biomass ink printing and a preparation method and application thereof comprise the following steps:
Step one: preparation of cuttlefish juice nano-particles: the cuttlefish juice extracted from cuttlefish ink sac is stirred at room temperature for 6h, and centrifuged at 5000r/min for 30min to collect supernatant. The supernatant was centrifuged at 9000r/min for 30min to collect the precipitate. And (5) performing vacuum freeze drying on the precipitate to obtain cuttlefish juice nano particles.
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink: adding cuttlefish juice nano particles into a cellulose nanofiber aqueous solution (10 mg/ml) and stirring, and controlling the mass ratio of the cuttlefish juice nano particles to the nanocellulose to be 0.5:1. The mixed solution is continuously stirred and concentrated on a heating table at 60 ℃ to obtain the high-viscosity composite ink with the mass fraction of 5 wt%.
Step three: preparation of light-responsive screw driver: first, the composite ink was loaded into a syringe with a needle, mounted on a 3D printer, and connected to an air pump. The polyethylene film was placed on a printing platform and sucked by a vacuum system. Designing a printing program, and controlling the distance between a printing nozzle and a film to be 70 mu m; controlling the printing air pressure to be 10KPa; the movement speed of the printing nozzle was controlled to be 5mm/s. Printing ink lines and the long sides of the rectangular polymer film on the flexible polymer layer at equal intervals in an angle of 15 DEG, 30 DEG, 45 DEG, 60 DEG and 75 DEG, controlling the width of the lines to be 200 mu m, controlling the distance between the lines to be 200 mu m, and removing the film from the printing platform after drying under the environmental condition to obtain the light response screw driver.
Example 3
A light response screw driver based on biomass ink printing and a preparation method and application thereof comprise the following steps:
Step one: preparation of cuttlefish juice nano-particles: the cuttlefish juice extracted from cuttlefish ink sac is stirred at room temperature for 6h, and centrifuged at 5000r/min for 30min to collect supernatant. The supernatant was centrifuged at 9000r/min for 30min to collect the precipitate. And (5) performing vacuum freeze drying on the precipitate to obtain cuttlefish juice nano particles.
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink: adding cuttlefish juice nano particles into a cellulose nanofiber aqueous solution (10 mg/ml) and stirring, wherein the mass ratio of the cuttlefish juice nano particles to the nanocellulose is controlled to be 10:1. The mixed solution is continuously stirred and concentrated on a heating table at 60 ℃ to obtain the high-viscosity composite ink with the mass fraction of 10 wt%.
Step three: preparation of light-responsive screw driver: first, the composite ink was loaded into a syringe with a needle, mounted on a 3D printer, and connected to an air pump. The polyethylene film was placed on a printing platform and sucked by a vacuum system. Designing a printing program, and controlling the distance between a printing nozzle and a film to be 70 mu m; controlling the printing air pressure to be 10KPa; the movement speed of the printing nozzle was controlled to be 5mm/s. Printing ink lines and the long sides of the rectangular polymer film on the flexible polymer layer at equal intervals in an angle of 15 degrees, 30 degrees, 45 degrees, 60 degrees and 75 degrees, controlling the width of the lines to be 300 mu m, controlling the distance between the lines to be 700 mu m, and removing the film from the printing platform after drying under the environmental condition to obtain the light response screw driver.
Claims (10)
1. Light response screw driver based on living beings printing ink prints, its characterized in that: the light response screw driver comprises an cuttlefish ink nanoparticle/nanocellulose ink layer and a flexible polymer layer, wherein ink lines of the cuttlefish ink nanoparticle/nanocellulose ink layer are printed on the flexible polymer layer in parallel at equal intervals.
2. The biomass ink printing-based light responsive screw driver of claim 1 wherein: the thickness of the cuttlefish ink nanoparticle/nanocellulose ink layer is 5-30 mu m, and the thickness of the flexible polymer layer is 10-50 mu m.
3. The biomass ink printing-based light responsive screw driver of claim 1 wherein: the nano cellulose is one of cellulose nano fiber, bacterial cellulose and cellulose nano whisker.
4. The biomass ink printing-based light responsive screw driver of claim 1 wherein: the flexible polymer is one of polyethylene, polypropylene, polyimide and polyethylene terephthalate.
5. A method of preparing a light responsive screw driver for printing on a biomass based ink as claimed in any one of claims 1 to 4 wherein: the method comprises the following steps:
Step one: preparation of cuttlefish juice nano-particles:
uniformly stirring cuttlefish juice extracted from cuttlefish ink sac at room temperature, centrifuging at low speed to collect supernatant, centrifuging supernatant at high speed to collect precipitate, and vacuum freeze-drying the precipitate to obtain cuttlefish juice nanoparticles;
Step two: preparation of the cuttlefish juice nanoparticle/nanocellulose composite ink:
Adding cuttlefish juice nano particles into a nano cellulose aqueous solution, uniformly stirring at room temperature, and continuously stirring and concentrating the mixed solution on a heating table to obtain high-viscosity composite ink;
Step three: preparation of light-responsive screw driver:
Filling the composite ink into a syringe with a needle, mounting the syringe on a 3D printer, and connecting the syringe to an air pump; placing the flexible polymer film on a printing platform and sucking the flexible polymer film by a vacuum system; and designing a printing program, printing ink lines and the long side of the rectangular polymer film on the flexible polymer layer at a certain angle and equidistant in parallel, and removing the film from the printing platform after drying under the environmental condition to obtain the light response screw driver.
6. The method of manufacturing according to claim 5, wherein: in the first step, the inkfish juice is stirred for 2 to 6 hours at room temperature; controlling the rotation speed of the first low-speed centrifugation to be 3000-5000r/min for 10-30min; controlling the rotation speed of the second high-speed centrifugation to 9000-11000r/min for 10-30min.
7. The method of manufacturing according to claim 5, wherein: in the second step, the concentration of the nano cellulose aqueous solution is 5-10mg/ml; the temperature of the heating table is 60-90 ℃; the mass concentration of the high-viscosity composite ink is 5-10wt%.
8. The method of manufacturing according to claim 5, wherein: in the third step, the mass ratio of the cuttlefish juice nano particles to the nanocellulose is 0.1-10:1.
9. The method of manufacturing according to claim 5, wherein: in the third step, the width of the parallel ink lines is 150-1000 mu m; the spacing between the parallel ink lines is 150-1000 mu m; the included angle between the ink lines and the long side of the rectangular polymer film is 5-85 degrees; controlling the distance between the printing nozzle and the film to be 50-100 mu m; controlling the printing air pressure to be 5-20KPa; the movement speed of the printing nozzle is controlled to be 1-5mm/s.
10. Use of a light responsive screw driver based on printing of biomass ink as claimed in any one of claims 1 to 4, characterised in that: the light responsive screw driver changes from a flat state to a screw state when exposed to light, the screw deformed state of which is related to the printing angle, and the light responsive screw driver returns to the flat state when ambient light is turned off.
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| CN118221988A (en) * | 2024-03-01 | 2024-06-21 | 哈尔滨工业大学 | Light/wet response driver based on cuttlefish juice and nanocellulose, and preparation method and application thereof |
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