CN114059348B - Flexible transparent heating film, flexible transparent thermotherapy sheet and preparation method - Google Patents
Flexible transparent heating film, flexible transparent thermotherapy sheet and preparation method Download PDFInfo
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- CN114059348B CN114059348B CN202111370751.9A CN202111370751A CN114059348B CN 114059348 B CN114059348 B CN 114059348B CN 202111370751 A CN202111370751 A CN 202111370751A CN 114059348 B CN114059348 B CN 114059348B
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Abstract
The invention discloses a flexible transparent heating film, a flexible transparent thermotherapy sheet and a preparation method thereof. The preparation method of the heating film comprises the steps of carrying out electrostatic spinning on an electrospinning precursor polymer solution to obtain a suspended nanofiber network; and depositing and coating metal on the nanofiber network by one or more methods of sputtering, thermal evaporation, electron beam evaporation and atomic layer deposition to obtain the self-supporting flexible transparent heating film. The preparation method of the thermotherapy sheet comprises depositing polyvinyl alcohol layer on a flexible substrate; attaching the flexible transparent heating film to the polyvinyl alcohol layer, and leading out metal electrodes at two ends of the flexible transparent heating film; a polymer layer was deposited on the flexible transparent heating film, and the flexible substrate was peeled off from the polyvinyl alcohol layer, to obtain a flexible transparent thermal therapy sheet. The flexible transparent thermal therapy sheet has the advantages of low heating voltage, high heating rate, high transparency, good biocompatibility and high stability.
Description
Technical Field
The invention discloses a flexible transparent heating film, a flexible transparent thermotherapy sheet and preparation methods of the flexible transparent heating film and the flexible transparent thermotherapy sheet, and belongs to the technical field of application of nano material devices.
Background
The heat generating principle of the traditional thermotherapy equipment represented by a warmer is that a primary battery is utilized to accelerate the oxidation reaction so as to convert chemical energy into heat energy. Due to the limitation of a heat generating principle, the thermotherapy device has the defects of being heavy, large in size, uncontrollable in temperature, difficult to attach to the skin, incapable of observing the state of a thermotherapy part in real time, incapable of being recycled and the like, so that the use scene of the thermotherapy device is greatly limited.
In order to solve the above problems of the thermal therapy devices such as a warmer and the like in the prior art, technical personnel in the field have developed a transparent thermal therapy sheet, but the preparation method of the prior transparent thermal therapy sheet generally comprises the steps of dissolving metal salt in a high polymer material, performing electrostatic spinning, and then directly annealing at high temperature, so that the metal salt is reduced into a metal material to prepare a heating film in the transparent thermal therapy sheet. The preparation method has the problem of low preparation efficiency, and the thermotherapy sheet prepared by the preparation method has large resistance, so that the voltage required to be applied to the thermotherapy sheet is large, and potential safety hazards exist.
Disclosure of Invention
The application aims to provide a flexible transparent heating film, a flexible transparent thermotherapy sheet and preparation methods of the flexible transparent heating film and the flexible transparent thermotherapy sheet so as to solve the technical problems of low preparation efficiency and potential safety hazards of the thermotherapy sheet prepared by the existing thermotherapy sheet preparation method.
The first aspect of the present invention provides a method for preparing a flexible transparent heating film, comprising:
performing electrostatic spinning on the electrospinning precursor polymer solution to obtain a suspended nanofiber network;
and depositing and coating metal on the nanofiber network by one or more methods of sputtering, thermal evaporation, electron beam evaporation and atomic layer deposition to obtain the self-supporting flexible transparent heating film.
Preferably, before electrospinning the electrospun precursor polymer solution on a collecting device to obtain a suspended nanofiber network, the method further comprises:
dissolving a first polymer into a first solvent by the mass ratio of 5-25% to obtain an electrospinning precursor polymer solution;
the first polymer comprises one or more of polyvinyl alcohol, polyvinylidene fluoride, polylactic acid, polyurethane and polyacrylonitrile;
the first solvent includes one of water, N-dimethylformamide, and dichloromethane.
Preferably, the metal comprises one or more of gold, silver, copper, platinum, nickel, aluminum, titanium, iron, zinc and tungsten;
preferably, the thickness of the coating is 10-300nm.
The second aspect of the present invention provides a flexible transparent heating film, which is prepared by the above-mentioned flexible transparent heating film preparation method.
A third aspect of the present invention provides a method for preparing a flexible transparent thermal therapy sheet, comprising:
depositing a polyvinyl alcohol layer on a flexible substrate;
attaching the flexible transparent heating film to the polyvinyl alcohol layer, and leading out metal electrodes at two ends of the flexible transparent heating film; the flexible transparent heating film is the flexible transparent heating film;
and depositing a polymer layer on the flexible transparent heating film, and peeling the flexible substrate from the polyvinyl alcohol layer to obtain the flexible transparent thermal therapy sheet.
Preferably, after obtaining the flexible transparent thermal therapy sheet, the method further comprises:
encapsulating the flexible transparent thermotherapy sheet with biocompatible material to expose the metal electrode, and drying at 50-120 deg.C for 0.5-5h;
preferably, before depositing the polyvinyl alcohol layer on the flexible substrate, the method further comprises:
cleaning and blow-drying the flexible substrate;
preferably, the cleaning and blow-drying of the flexible substrate specifically includes:
ultrasonically cleaning the flexible substrate by using acetone, ethanol and deionized water in sequence and blow-drying by using a nitrogen gun;
preferably, depositing a polymer layer on the flexible transparent heating film, and peeling the flexible substrate from the polyvinyl alcohol layer, specifically comprising:
depositing a second polymer solution onto the flexible transparent heating film and drying at 50-120 ℃ for 0.5-5h to obtain a polymer layer;
after drying, peeling the flexible substrate from the polyvinyl alcohol layer;
preferably, the second polymer solution is one of a polyvinylidene fluoride solution, a polylactic acid solution, a polyurethane solution, a polyacrylonitrile solution, a polyvinylpyrrolidone solution and a polymethyl methacrylate solution;
preferably, the solvent of the second polymer solution is one or two of alcohol, N-dimethylformamide, dichloromethane and ethyl acetate.
Preferably, the heating layer is encapsulated by a biocompatible material, and the metal electrode is exposed, so as to obtain the flexible transparent thermotherapy sheet, which specifically comprises:
encapsulating the heating layer with a biocompatible material and exposing the metal electrode;
drying the packaged product at 50-120 deg.C for 0.5-5 hr to obtain flexible transparent thermotherapy sheet.
Preferably, the depositing a polyvinyl alcohol layer on the flexible substrate specifically includes:
depositing a polyvinyl alcohol aqueous solution with the mass fraction of 5-25% on a flexible substrate to obtain a polyvinyl alcohol layer;
preferably, after depositing the polyvinyl alcohol layer on the flexible substrate, the method further comprises:
drying the deposited flexible substrate at 50-120 ℃ for 1-5h.
Preferably, the material of the flexible substrate is one of polyethylene terephthalate, polyimide and polyethylene naphthalate;
preferably, the biocompatible material is polydimethylsiloxane or copolyester.
The fourth aspect of the present invention provides a flexible transparent thermal therapy sheet, which is prepared by the above preparation method of the flexible transparent thermal therapy sheet.
Compared with the prior art, the invention has the following beneficial effects:
the preparation method of the flexible transparent heating film comprises the steps of preparing a suspended nanofiber network, and then depositing and coating metal on the suspended nanofiber network. The flexible transparent heating film prepared by the method is a self-supporting structure and can be directly transferred to a substrate. In industrial production, the flexible transparent heating film can be prepared in batch and then transferred to the substrate as required, thereby improving the efficiency of preparing the thermal therapy sheet by using the heating film subsequently. Meanwhile, the flexible transparent heating film provided by the invention has the ultra-long nano fibers, so that the flexible transparent heating film has very low resistance, small voltage applied to the flexible transparent heating film during use and high safety. Further, the flexible transparent heating film of the invention has controllable distribution direction of the fibers and ultrahigh length-diameter ratio, so that the flexible transparent heating film has excellent flexibility and high transmittance. The flexible transparent heating film can be used as a heating part of devices such as transparent heating glass, electronic product heat preservation and the like, and can also be applied to the fields of medical treatment and the like, for example, as a heating element in a thermal therapy sheet.
The preparation method of the flexible transparent thermotherapy sheet provided by the invention is directly prepared by utilizing the flexible transparent heating film, the preparation efficiency is high, and the flexible transparent heating film has the advantages of both the flexible transparent thermotherapy sheet and the flexible transparent heating film. Furthermore, in the preparation method of the flexible transparent thermal therapy sheet, the sandwich structure and the biocompatible packaging material are used for packaging, so that the mechanical stability and the thermal stability of the thermal therapy sheet are greatly improved, the thermal therapy sheet can be directly attached to the skin of a human body, and discomfort conditions such as allergy and the like can not be generated.
The flexible transparent thermotherapy sheet has the advantages of low heating voltage, high heating rate, high transparency, good biocompatibility, high stability, capability of being perfectly attached to the surface of the skin, reusability and the like. Its heating temperature can be regulated and control thermotherapy chip resistance or external heating voltage according to actual demand to because its high transparent characteristics to visible light, can real-time observation thermotherapy local skin condition in the thermotherapy, avoid scalding, more importantly permeable thermotherapy piece detects blood oxygen index in the thermotherapy, can guarantee extremely cold district patient blood oxygen measuring accuracy. In addition, the flexible transparent thermotherapy sheet does not contain toxic substances, and is high in environmental friendliness.
The flexible transparent thermotherapy sheet can be used for replacing a traditional human body heating device represented by a hot compress bag, can be applied to the treatment of arthritis, cervical spondylosis and chronic eye diseases and the relief of dysmenorrheal caused by unsmooth qi and blood and cold, can be used for subcutaneous tumor thermotherapy because the heating temperature is controllable and the temperature distribution is uniform, can be used for inhibiting the growth of tumor cells or carrying out combined treatment with other therapies, and is a novel, safe and high-transparency thermotherapy device.
Drawings
FIG. 1 is a diagram of the transmittance spectrum of visible light of transparent thermal therapeutic sheets with different square resistors in the prior art;
fig. 2 is a graph showing a heating curve of a transparent thermal therapeutic sheet of different sheet resistances at a voltage of 1.2V in the prior art;
FIG. 3 is a graph showing the heating curves of the same transparent thermal therapeutic sheet under different voltages in the prior art;
fig. 4 is a flowchart of a method for manufacturing a flexible transparent heating film according to an embodiment of the present invention;
fig. 5 (a) is a schematic structural diagram of a bilateral frame collection device according to an embodiment of the present invention;
fig. 5 (b) is a schematic structural diagram of a collecting device of a four-sided frame according to an embodiment of the present invention;
fig. 6 (a) is an SEM image of a nanofiber network obtained by using a bilateral frame collection device according to an embodiment of the present invention;
fig. 6 (b) is an SEM image of a nanofiber network obtained by using a four-sided frame collection device according to an embodiment of the present invention;
FIG. 7 is an SEM image of different distribution densities of ultra-long metal nanofiber networks collected using a bilateral frame collection device in accordance with an embodiment of the present invention;
FIG. 8 is a flow chart of a method for preparing a flexible transparent thermal therapy sheet according to an embodiment of the present invention;
fig. 9 is a schematic view illustrating a structure of a flexible transparent thermal therapy sheet according to an embodiment of the present invention.
FIG. 1 is a flexible transparent heating film; 2 is a polyvinyl alcohol layer; 3 is a polymer layer; and 4, an encapsulation layer.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In the transparent thermal therapeutic sheet of the prior art, there is a relationship between the sheet resistance and the transmittance of visible light as shown in fig. 1. As can be seen from fig. 1, the sheet resistance is large and the transmittance is high. And the relationship between the square resistance and the temperature of the transparent thermo-therapeutic sheet is shown in fig. 2, and it can be known from fig. 2 that the larger the square resistance is, the lower the maximum temperature of the transparent thermo-therapeutic sheet is.
As can be seen from fig. 1 and 2, the sheet resistance is large, the visible light transmittance is high, but the maximum temperature that can be reached is low.
Further, the temperature of the transparent thermal therapy sheet is also related to the heating voltage, and the relationship between the two is shown in fig. 3. As can be seen from fig. 3, the higher the voltage, the higher the maximum temperature that can be reached by the transparent thermal therapy sheet.
As can be seen from fig. 1 to 3, the square resistance is large, the visible light transmittance is high, but the highest temperature that can be reached is low, so that the temperature of the transparent thermal therapeutic sheet can reach a high and proper thermal therapeutic temperature, which can be achieved only by increasing the voltage. And the application of a larger voltage has potential safety hazard.
The embodiment of the invention provides a flexible transparent heating film, and the preparation method of the flexible transparent heating film is improved, so that the square resistance of the film layer can be smaller on the basis of ensuring the transmittance of the flexible transparent heating film.
As shown in fig. 4, the method for manufacturing a flexible transparent heating film according to an embodiment of the present invention includes:
s11, performing electrostatic spinning on the electrospinning precursor polymer solution to obtain a suspended nanofiber network; the length of the nanofiber in the nanofiber network is between several centimeters and dozens of centimeters, and specifically can be 1cm-100cm; specifically, the concentration can be 1-10cm, 10cm-20cm, 20cm-30cm, 30cm-40cm, 40cm-50cm, 50cm-70cm, 70cm-100cm and the like, and the application is not limited; the flexible transparent heating film prepared by the nanofiber network with the nanofiber length has small square resistance and high visible light transmittance.
In the embodiment, the structure of the collecting device is improved, so that the nanofiber network obtained by electrostatic spinning has controllable distribution direction, is suspended and has ultrahigh length-diameter ratio. Specifically, the structure of the collecting means is shown in fig. 5 (a) or fig. 5 (b). Wherein (a) in fig. 5 is a bilateral frame collecting device, comprising two collecting plates oppositely arranged, the distance between the two collecting plates is set according to the required length of the nano-fiber in the nano-fiber network, for example, when the nano-fiber with the length of 5cm is desired, the distance between the two collecting plates is set to 5cm; when nanofibers of 20cm length are desired, the spacing between the two collector plates is set to 20cm. The height of the two collecting plates is 2cm-10cm, and within the height range, the nanofiber network obtained by electrostatic spinning can be ensured to be suspended and can be transferred as required. Fig. 5 (b) is a four-sided frame of a collecting apparatus, which includes four collecting plates, which are sequentially arranged to form a square structure, wherein the distance between two opposite collecting plates is set according to the desired length of nanofibers in the nanofiber network, for example, when it is desired to obtain nanofibers having a length of 10cm, the distance between two collecting plates is set to 10cm; when nanofibers having a length of 30cm were desired, the distance between the two collecting plates was set to 30cm. The height of the four collecting plates is 2cm-10cm, and within the height range, the nanofiber network obtained by electrostatic spinning can be suspended and can be transferred as required.
The SEM image of the nanofiber network obtained by the collecting device with the double-sided frame is shown in fig. 6 (a), and the SEM image of the nanofiber network obtained by the collecting device with the four-sided frame is shown in fig. 6 (b), and it can be seen from the figure that the fibers in the suspended nanofiber network obtained by the collecting device with the present application are ultra-long and have ultra-high aspect ratio.
Fig. 7 (a), (b), (c), and (d) are SEM images of the ultra-long metal nanofiber networks collected using the bilateral frame collection device at different distribution densities. It can be further confirmed from the figure that the fibers in the suspended nanofiber network obtained by using the collecting device of the present application are ultra-long and have a high aspect ratio.
And S12, depositing and coating metal on the nanofiber network by using one or more methods of sputtering, thermal evaporation, electron beam evaporation and atomic layer deposition to obtain the suspended self-supporting flexible transparent heating film. The flexible transparent heating film consists of an ultra-long metal nanofiber network.
Wherein the metal comprises one or more of gold (Au), silver (Ag), copper (Cu), platinum (Pt), nickel (Ni), aluminum (Al), titanium (Ti), iron (Fe), zinc (Zn) and tungsten (W);
wherein the thickness of the metal deposition coating is 10-300nm.
The metal is directly deposited and coated on the nanofiber network, namely, the metal is deposited on the nanofiber network by using a physical method, and the metal film layer is more uniformly distributed in such a way, so that the finally prepared flexible transparent heating film has the advantages of uniform film layer and good conductivity.
Further, before step S11, the method further includes:
and S10, dissolving the first polymer into a first solvent according to the mass ratio of 5-25% to obtain an electrospinning precursor polymer solution.
Wherein the first polymer is a high molecular spinning material and comprises one or more of polyvinyl alcohol (PVA), polyvinylidene fluoride (PVDF), polylactic acid (PLA), polyurethane (PU) and Polyacrylonitrile (PAN);
the first solvent comprises one of water, N-Dimethylformamide (DMF), and Dichloromethane (DCM).
The second aspect of the present invention provides a flexible transparent heating film, which is prepared by the above-mentioned flexible transparent heating film preparation method.
The preparation method of the flexible transparent heating film comprises the steps of preparing a suspended nanofiber network, and then depositing and coating metal on the suspended nanofiber network. The flexible transparent heating film prepared by the method is a self-supporting structure and can be directly transferred to a substrate. In industrial production, the flexible transparent heating film can be prepared in batch and then transferred to the substrate as required, thereby improving the efficiency of preparing the thermal therapy sheet by using the heating film subsequently. Meanwhile, the flexible transparent heating film provided by the invention has the ultra-long nano fibers, so that the flexible transparent heating film has very low resistance, small voltage applied to the flexible transparent heating film during use and high safety. Further, the flexible transparent heating film of the invention has controllable distribution direction of the fibers and ultrahigh length-diameter ratio, so that the flexible transparent heating film has excellent flexibility and high transmittance. The flexible transparent heating film can be used as a heating component of transparent heating glass, and can also be applied to the fields of medical treatment and the like, for example, as a heating element in a thermal therapy sheet.
A third aspect of the present invention provides a method for preparing a flexible transparent thermal therapy sheet, see fig. 8, comprising:
step S21, depositing a polyvinyl alcohol layer on the flexible substrate, which specifically comprises the following steps:
step S211, uniformly depositing a polyvinyl alcohol aqueous solution with the mass fraction of 5-25% on a flexible substrate by utilizing one of spin coating, blade coating, spray coating or drop coating to obtain a polyvinyl alcohol layer;
and S212, drying the flexible substrate on which the polyvinyl alcohol layer is deposited for 1-5h at 50-120 ℃.
In this embodiment, the material of the flexible substrate is one of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN).
The polyvinyl alcohol layer of the embodiment plays a role in supporting and facilitating peeling. The high young's modulus polyvinyl alcohol film can significantly reduce the stress to which the conductive network attached thereto is subjected when deformed. And the polyvinyl alcohol can be simply peeled off from the flexible substrate in a one-piece manner.
S22, attaching the suspended flexible transparent heating film to the polyvinyl alcohol layer, and leading out metal electrodes at two ends of the flexible transparent heating film; wherein the flexible transparent heating film is the flexible transparent heating film.
Step S23, depositing a polymer layer on the flexible transparent heating film, and peeling the flexible substrate from the polyvinyl alcohol layer to obtain the flexible transparent thermal therapy sheet, which specifically comprises the following steps:
s231, uniformly depositing the second polymer solution on a flexible transparent heating film by one of spin coating, blade coating, spray coating or drop coating, and drying at 50-120 ℃ for 0.5-5h to obtain a polymer layer;
wherein the second polymer solution is one of polyvinylidene fluoride (PVDF) solution, polylactic acid (PLA) solution, polyurethane (PU) solution, polyacrylonitrile (PAN) solution, polyvinylpyrrolidone (PVP) solution and polymethyl methacrylate (PMMA) solution;
the solvent of the second polymer solution is one of alcohol, N-dimethylformamide, dichloromethane and ethyl acetate.
The present embodiment provides a polymer layer on the flexible transparent heating film mainly for fixing and encapsulating. The transparent flexible heating film is firmly fixed by the polymer layer and the lower polyethylene layer, and displacement and fracture of the wire fibers caused by deformation can be avoided. And the polymer layer can effectively isolate oxygen and moisture in the air, avoid the oxidation of the transparent flexible heating film and improve the stability of the thermal therapy sheet.
And step S232, after drying, peeling the flexible substrate from the polyvinyl alcohol layer to obtain the flexible transparent thermal therapy sheet.
After step S23, the method further includes:
step S24, the flexible transparent thermotherapy sheet is packaged by a biocompatible material, the metal electrode is exposed, and the flexible transparent thermotherapy sheet is dried for 0.5-5h at 50-120 ℃. Wherein the biocompatible material is Polydimethylsiloxane (PDMS) or copolyester (Ecoflex).
This embodiment further includes, before depositing the polyvinyl alcohol layer on the flexible substrate:
s20, cleaning and blow-drying the flexible substrate, and specifically comprises the following steps:
and ultrasonically cleaning the flexible substrate by using acetone, ethanol and deionized water in sequence and blow-drying by using a nitrogen gun.
The preparation method of the flexible transparent thermotherapy sheet provided by the invention is directly prepared by utilizing the flexible transparent heating film, the preparation efficiency is high, and the flexible transparent heating film has the advantages of both the flexible transparent thermotherapy sheet and the flexible transparent heating film. Furthermore, in the preparation method of the flexible transparent thermal therapy sheet, the sandwich structure and the biocompatible packaging material are used for packaging, so that the mechanical stability and the thermal stability of the thermal therapy sheet are greatly improved, the thermal therapy sheet can be directly attached to the skin of a human body, and discomfort conditions such as allergy and the like can not be generated.
The fourth aspect of the present invention provides a flexible transparent thermal therapy sheet prepared by the above method for preparing a flexible transparent thermal therapy sheet. The structure of the flexible transparent thermotherapy sheet is shown in fig. 7, and comprises a flexible transparent heating film 1, a polyvinyl alcohol layer 2 and a polymer layer 3 respectively arranged on two sides of the flexible transparent heating film 1, and an outermost packaging layer 4.
The flexible transparent thermotherapy sheet has the advantages of low heating voltage, high heating rate, high transparency, good biocompatibility, high stability, capability of being perfectly attached to the surface of skin and being recycled, and the like. Its heating temperature can be regulated and control thermotherapy chip resistance or external heating voltage according to actual demand to because its high transparent characteristics to visible light, can real-time observation thermotherapy local skin condition in the thermotherapy, avoid scalding, more importantly permeable thermotherapy piece detects blood oxygen index in the thermotherapy, can guarantee extremely cold district patient blood oxygen measuring accuracy.
The flexible transparent thermotherapy sheet can be used for replacing a traditional human body heating device represented by a hot compress bag, can be applied to the treatment of arthritis, cervical spondylosis and chronic eye diseases and the relief of dysmenorrheal caused by unsmooth qi and blood and cold, can be used for subcutaneous tumor thermotherapy because the heating temperature is controllable and the temperature distribution is uniform, can be used for inhibiting the growth of tumor cells or carrying out combined treatment with other therapies, and is a novel, safe and high-transparency thermotherapy device.
Hereinafter, the method for preparing the flexible transparent thermal therapy sheet according to the present invention will be described in more detail with reference to more specific examples.
Example 1:
a. completely dissolving polyvinyl alcohol (PVA) into deionized water by the mass percent of 10% to form an electrostatic spinning precursor solution;
b. electrospinning the solution on a collecting device shown as (a) in fig. 2 to obtain a suspended ultra-long nanofiber network;
c. sputtering and coating an Au film with the thickness of 50 nanometers on the suspended super-long nanofiber network to obtain a suspended self-supporting flexible transparent heating film;
d. ultrasonically cleaning a polyethylene terephthalate (PET) flexible substrate with acetone, ethanol and deionized water in sequence, and blow-drying with a nitrogen gun;
e. uniformly spin-coating a polyvinyl alcohol (PVA) aqueous solution with the mass fraction of 5% on a PET substrate, and drying at 60 ℃ for 5 hours to obtain a polyvinyl alcohol layer;
f. attaching a suspended flexible transparent heating film to the flexible substrate coated with the PVA film, and sputtering Ag metal electrodes at two ends of the flexible transparent heating film;
g. uniformly spin-coating a polyvinylpyrrolidone (PVP) alcohol solution with the mass fraction of 5% on a flexible transparent heating film, and drying at 60 ℃ for 5 hours to obtain a polymer layer;
h. after drying, peeling the PET flexible substrate from the polyvinyl alcohol layer to obtain a flexible transparent thermotherapy sheet consisting of the polyvinyl alcohol layer, a flexible transparent heating film and a polymer layer;
i. and packaging the flexible transparent thermal therapy sheet by using Polydimethylsiloxane (PDMS), exposing the metal electrodes at two ends, and drying at 50 ℃ for 5 hours to finally obtain the finished product flexible transparent thermal therapy sheet based on the ultra-long metal nano fibers.
Example 2:
a. dissolving polyvinylidene fluoride (PVDF) into N, N-Dimethylformamide (DMF) according to the mass percentage of 10 percent to form an electrostatic spinning precursor solution;
b. electrospinning the solution on a collecting device shown as (a) in fig. 2 to obtain a suspended ultra-long nanofiber network;
c. coating an Ag film with the thickness of 60 nanometers on the suspended super-long nanofiber network by thermal evaporation to obtain a suspended self-supporting flexible transparent heating film;
d. ultrasonically cleaning a Polyimide (PI) flexible substrate with acetone, ethanol and deionized water in sequence, and blow-drying with a nitrogen gun;
e. uniformly spin-coating a polyvinyl alcohol (PVA) aqueous solution with the mass fraction of 10% on a PI substrate, and drying at 80 ℃ for 3 hours to obtain a polyvinyl alcohol layer;
f. attaching a suspended flexible transparent heating film to the flexible substrate coated with the PVA film, and thermally evaporating Ag metal electrodes at two ends of the flexible transparent heating film;
g. uniformly spin-coating a polymethyl methacrylate (PMMA) ethyl acetate solution with the mass fraction of 10% onto a flexible transparent heating film, and drying at 80 ℃ for 3 hours to obtain a polymer layer;
h. after drying, peeling the PI flexible substrate from the polyvinyl alcohol layer to obtain a flexible transparent thermotherapy sheet consisting of the polyvinyl alcohol layer, a flexible transparent heating film and a polymer layer;
i. and packaging the flexible transparent thermotherapy sheet by using copolyester (Ecoflex), exposing metal electrodes at two ends, and drying at 60 ℃ for 4 hours to finally obtain the finished product flexible transparent thermotherapy sheet based on the ultra-long metal nano fibers.
Example 3:
a. dissolving polylactic acid (PLA) into Dichloromethane (DCM) by mass ratio of 25% to form an electrospinning precursor solution;
b. electrospinning the solution on a collecting device shown as (a) in fig. 2 to obtain a suspended ultra-long nanofiber network;
c. coating a 70-nanometer thick Cu film on a suspended super-long nanofiber network through electron beam evaporation deposition to obtain a suspended self-supporting flexible transparent heating film;
d. ultrasonically cleaning a polyethylene naphthalate (PEN) flexible substrate with acetone, ethanol and deionized water in sequence, and blow-drying with a nitrogen gun;
e. uniformly spin-coating a polyvinyl alcohol (PVA) aqueous solution with the mass fraction of 12% on a PEN substrate, and drying at 90 ℃ for 2h to obtain a polyvinyl alcohol layer;
f. attaching a suspended flexible transparent heating film to the flexible substrate coated with the PVA film, and evaporating Ag metal electrodes on two ends of the flexible transparent heating film by using electron beams;
g. uniformly spin-coating a polymethyl methacrylate (PMMA) ethyl acetate solution with the mass fraction of 10% onto a flexible transparent heating film, and drying at 80 ℃ for 3 hours to obtain a polymer layer;
h. after drying, peeling a polyethylene naphthalate (PEN) flexible substrate from a polyvinyl alcohol layer to obtain a flexible transparent thermotherapy sheet composed of the polyvinyl alcohol layer, a flexible transparent heating film and a polymer layer;
i. and packaging the flexible transparent thermal therapy sheet by using Polydimethylsiloxane (PDMS), exposing the metal electrodes at two ends, and drying at 70 ℃ for 3h to finally obtain the finished product flexible transparent thermal therapy sheet based on the ultra-long metal nano fibers.
Example 4:
a. dissolving Polyurethane (PU) into N, N-Dimethylformamide (DMF) according to the mass percent of 12% to form an electrostatic spinning precursor solution;
b. electrospinning the solution on a special collecting device shown as (a) in fig. 2 to obtain a suspended ultra-long nanofiber network;
c. sputtering and coating a Ni film with the thickness of 80 nanometers on the suspended super-long nanofiber network to obtain a suspended self-supporting flexible transparent heating film;
d. ultrasonically cleaning a polyethylene terephthalate (PET) flexible substrate with acetone, ethanol and deionized water in sequence, and blow-drying with a nitrogen gun;
e. uniformly spin-coating a polyvinyl alcohol (PVA) aqueous solution with the mass fraction of 13% on the cleaned PET, and drying at 100 ℃ for 1h to obtain a polyvinyl alcohol layer;
f. attaching a suspended flexible transparent heating film to the flexible substrate coated with the PVA film, and sputtering Ag metal electrodes at two ends of the flexible transparent heating film;
g. uniformly spin-coating a polyvinylpyrrolidone (PVP) alcohol solution with the mass fraction of 12% on a flexible transparent heating film, and drying at 100 ℃ for 1h to obtain a polymer layer;
h. after drying, peeling the PET flexible substrate from the polyvinyl alcohol layer to obtain a flexible transparent thermotherapy sheet consisting of the polyvinyl alcohol layer, the flexible transparent heating film and the polymer layer;
i. and packaging the flexible transparent thermotherapy sheet by using Polydimethylsiloxane (PDMS), exposing the metal electrodes at two ends, and drying at 80 ℃ for 2h to finally obtain the finished product flexible transparent thermotherapy sheet based on the ultra-long metal nano fiber.
Example 5:
a. completely dissolving Polyacrylonitrile (PAN) into N, N-Dimethylformamide (DMF) by 10 mass percent to form an electrostatic spinning precursor solution;
b. electrospinning the solution on a special collecting device shown as (b) in fig. 2 to obtain a suspended ultra-long nanofiber network;
c. sputtering and coating an Al film with the thickness of 90 nanometers on the suspended super-long nanofiber network to obtain a suspended self-supporting flexible transparent heating film;
d. ultrasonically cleaning a polyethylene terephthalate (PET) flexible substrate with acetone, ethanol and deionized water in sequence, and blow-drying with a nitrogen gun;
e. uniformly spin-coating a polyvinyl alcohol (PVA) aqueous solution with the mass fraction of 15% on PET, and drying at 100 ℃ for 1h to obtain a polyvinyl alcohol layer;
f. attaching a suspended flexible transparent heating film to the flexible substrate coated with the PVA film, and sputtering Ag metal electrodes at two ends of the flexible transparent heating film;
g. uniformly spin-coating a polyvinyl pyrrolidone (PVP) alcohol solution with the mass fraction of 15% onto a flexible transparent heating film, and then drying at 100 ℃ for 1h to obtain a polymer layer;
h. after drying, peeling the polyethylene terephthalate (PET) flexible substrate from the polyvinyl alcohol layer to obtain a flexible transparent thermotherapy sheet composed of the polyvinyl alcohol layer, the flexible transparent heating film and the polymer layer;
i. and packaging the flexible transparent thermal therapy sheet by using Polydimethylsiloxane (PDMS), exposing the metal electrodes at two ends, and drying at 90 ℃ for 1h to finally obtain the finished product flexible transparent thermal therapy sheet based on the ultra-long metal nano fibers.
The flexible transparent thermotherapy sheet has the advantages of low heating voltage, high heating rate, high transparency, good biocompatibility, high stability, capability of being perfectly attached to the surface of the skin and being recycled, and the shape and the size of the flexible transparent thermotherapy sheet can be customized according to actual requirements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A method for preparing a flexible transparent thermal therapy sheet is characterized by comprising the following steps:
depositing a polyvinyl alcohol layer on a flexible substrate;
attaching the flexible transparent heating film to the polyvinyl alcohol layer, and leading out metal electrodes at two ends of the flexible transparent heating film;
depositing a polymer layer on the flexible transparent heating film, and peeling the flexible substrate from the polyvinyl alcohol layer to obtain a flexible transparent thermal therapy sheet;
encapsulating the flexible transparent thermal therapy sheet with a biocompatible material, exposing the metal electrode, and drying at 50-120 deg.C for 0.5-5h;
the preparation method of the flexible transparent heating film comprises the following steps:
carrying out electrostatic spinning on the electrospun precursor polymer solution by combining a collecting device to obtain a suspended nanofiber network;
depositing and coating metal on the nanofiber network by one or more methods of sputtering, thermal evaporation, electron beam evaporation and atomic layer deposition to obtain a self-supporting flexible transparent heating film;
the collecting device is of a bilateral frame structure and comprises two collecting plates which are oppositely arranged;
the metal is silver.
2. A method for preparing a flexible transparent thermal therapy sheet according to claim 1, wherein depositing a polymer layer on the flexible transparent heating film and peeling the flexible substrate from the polyvinyl alcohol layer, comprises:
depositing a second polymer solution onto the flexible transparent heating film and drying at 50-120 ℃ for 0.5-5h to obtain a polymer layer;
after drying, peeling the flexible substrate from the polyvinyl alcohol layer;
the second polymer solution is one or two of polyvinylidene fluoride solution, polylactic acid solution, polyurethane solution, polyacrylonitrile solution, polyvinylpyrrolidone solution and polymethyl methacrylate solution.
3. A method for preparing a flexible transparent thermotherapeutic sheet according to claim 1, wherein the depositing a polyvinyl alcohol layer on the flexible substrate comprises:
depositing a polyvinyl alcohol aqueous solution with the mass fraction of 5-25% on a flexible substrate to obtain a polyvinyl alcohol layer;
after the polyvinyl alcohol layer is deposited on the flexible substrate, the method further comprises the following steps:
drying the deposited flexible substrate at 50-120 ℃ for 1-5h.
4. A method for preparing a flexible transparent thermal therapy sheet according to claim 1, wherein before electrospinning the electrospun pre-polymer solution to obtain a suspended nanofiber network, further comprising:
dissolving a first polymer into a first solvent by the mass ratio of 5-25% to obtain an electrospinning precursor polymer solution;
the first polymer comprises one or more of polyvinyl alcohol, polyvinylidene fluoride, polylactic acid, polyurethane and polyacrylonitrile;
the first solvent includes one of water, N-dimethylformamide, and dichloromethane.
5. A method for preparing a flexible transparent thermal therapy sheet according to claim 1, wherein the thickness of the coating is 10-300nm.
6. A flexible transparent thermotherapy sheet, which is prepared by the method of any one of claims 1 to 5.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853049A (en) * | 2016-03-21 | 2016-08-17 | 兰州大学 | Transparent thermal therapy patch and preparation method thereof |
| CN106601382A (en) * | 2016-12-15 | 2017-04-26 | 华南理工大学 | Flexible transparent conductive film preparation method |
| KR20170123504A (en) * | 2016-04-29 | 2017-11-08 | 한국과학기술원 | A apparatus for manufacturing the film having nano-structure including nano/micro fiber network formed by electrospinning and a method for manufacturing the film having nano-structure including nano/micro fiber network formed by electrospinning |
| CN108962485A (en) * | 2018-05-30 | 2018-12-07 | 厦门大学 | A kind of biocompatible flexible transparent conducting film and preparation method thereof, application |
| CN110421915A (en) * | 2019-07-05 | 2019-11-08 | 厦门派恩杰科技有限公司 | A kind of preparation method of the protein film with heated for controlling temperature function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661043B (en) * | 2018-11-12 | 2021-05-18 | 中国科学院宁波材料技术与工程研究所 | Color-changeable flexible heating composite film |
-
2021
- 2021-11-18 CN CN202111370751.9A patent/CN114059348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853049A (en) * | 2016-03-21 | 2016-08-17 | 兰州大学 | Transparent thermal therapy patch and preparation method thereof |
| KR20170123504A (en) * | 2016-04-29 | 2017-11-08 | 한국과학기술원 | A apparatus for manufacturing the film having nano-structure including nano/micro fiber network formed by electrospinning and a method for manufacturing the film having nano-structure including nano/micro fiber network formed by electrospinning |
| CN106601382A (en) * | 2016-12-15 | 2017-04-26 | 华南理工大学 | Flexible transparent conductive film preparation method |
| CN108962485A (en) * | 2018-05-30 | 2018-12-07 | 厦门大学 | A kind of biocompatible flexible transparent conducting film and preparation method thereof, application |
| CN110421915A (en) * | 2019-07-05 | 2019-11-08 | 厦门派恩杰科技有限公司 | A kind of preparation method of the protein film with heated for controlling temperature function |
Non-Patent Citations (3)
| Title |
|---|
| "Ultraflexible Transparent Film-Heater Made of Ag Nanowire/PVA Composite for Rapid-Response Thermotherapy Pads";W. Lan 等;《ACS Applied Materials and Interfaces》;20170202;第9卷(第7期);第6644-6651页 * |
| "电纺模板法制备银/铜网络透明电极及其物性研究";李鹏;《中国优秀博硕士学位论文全文数据库(博士)基础科学辑》;20180115(第01期);第A005-41页 * |
| 李鹏."电纺模板法制备银/铜网络透明电极及其物性研究".《中国优秀博硕士学位论文全文数据库(博士)基础科学辑》.2018,(第01期),第A005-41页. * |
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