CN111519354A - High-thermal-conductivity phase-change energy storage material based on electrostatic spinning and preparation method thereof - Google Patents
High-thermal-conductivity phase-change energy storage material based on electrostatic spinning and preparation method thereof Download PDFInfo
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- CN111519354A CN111519354A CN202010316069.0A CN202010316069A CN111519354A CN 111519354 A CN111519354 A CN 111519354A CN 202010316069 A CN202010316069 A CN 202010316069A CN 111519354 A CN111519354 A CN 111519354A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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- 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
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- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4358—Polyurethanes
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- 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
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/38—Polyurethanes
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
The invention provides a high-thermal-conductivity phase-change energy storage material based on electrostatic spinning and a preparation method thereof, wherein the preparation method comprises the following steps: preparing a thermoplastic polyurethane, a phase-change material and a nano-carbon mixed spinning solution; preparing an elastic phase-change energy-storage electrostatic spinning membrane; and (3) preparing the elastic intelligent temperature regulating material. The elastic intelligent temperature regulating material disclosed by the invention has high thermal conductivity and high latent heat, has good electrical conductivity, is stable in shape and performance, can realize the temperature regulating function of electric response, and has wide application prospects in the fields of intelligent protective clothing and wearable electronic equipment.
Description
Technical Field
The invention belongs to the field of elastic conductive temperature adjusting fabrics and preparation thereof.
Background
Smart textiles are capable of responding to a variety of external stimuli and have become an emerging driving force for advanced flexible and wearable systems (e.g., sensors, biomimetic implants, robotics, energy harvesting devices, temperature regulating garments, and heaters). However, current fabrics made from natural or semi-synthetic polymers are inherently electrically and thermally insulating, which limits their application to sensors and actuators made from traditional electronic hardware and hinders the development of future wearable electronics and smart protective apparel. Nanocarbon materials, such as carbon nanotubes and graphene, have good electrical and thermal conductivity, are excellent electrical and thermal conductive structural units, and development of nanocomposite materials is currently attracting great interest. Nevertheless, it is challenging to produce smart fabrics that have the ability to respond to complex environmental and external stimuli, such as heat, temperature, pressure, light, humidity, pH, etc.
The organic phase change material and the composite material thereof are excellent heat energy storage materials, and can be used in the fields of heat storage, radiation of ambient environment, conversion of waste heat generated in the manufacturing process or the product using process and the like. Although organic phase change materials have excellent properties, some inherent drawbacks limit their application in many fields, such as low thermal conductivity, leakage problems during melting and cooling. In the past decade, electrospinning has become a simple, efficient and economical method for producing nonwoven fabrics composed of continuous and randomly coated fibers. The diameter of electrospun fibers is typically in the range of tens of nanometers to a few micrometers (commonly referred to as "electrospun fibers"). Electrospun fibers and fibrous nonwoven fabrics have many advantageous properties, including small diameter, low density, high porosity, high aspect ratio, large specific surface area, and good mechanical flexibility. A series of studies have been conducted to develop polymer fibers encapsulating organic phase change materials, taking advantage of the spinnability and good mechanical properties of polymers. However, it is difficult to collect the stimulus responsiveness of the composite fiber due to the low electrical and thermal conductivity of the organic phase change material and the polymer matrix.
Poly (3, 4-ethylenedioxythiophene) (PEDOT) is a p-type conducting polymer with good conductivity. PEDOT is typically blended with polystyrene sulfonate (PSS) to form a stable suspension of particles in water. PEDOT: aqueous suspensions of PSS have high electrical conductivity, electrochemical activity, environmental stability and good processability, and thus are widely used as electrode materials for energy storage devices, sensors and conductors. And (3) mixing PEDOT: the PSS is combined with the textile, so that the electric conductivity of the material can be greatly improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly aims to provide a preparation method of an elastic phase-change intelligent temperature regulating material based on electrostatic spinning, so as to prepare an elastic phase-change temperature regulating fabric with electric responsiveness, high heat conductivity and electric conductivity, and the elastic phase-change temperature regulating fabric has shape and performance stability and overcomes the problems that the phase-change fabric in the prior art is easy to leak liquid and has poor heat conductivity and electric conductivity. According to the method, the nano carbon material is introduced, so that the phase change material has good thermal conductivity and electrothermal conversion responsiveness, and the phase change material is prepared by the steps of PEDOT: PSS coating, endows fabric with good conductivity, so as to adapt to the application of the PSS coating in intelligent protective clothing and flexible wearable equipment.
A preparation method of an elastic phase-change intelligent temperature regulating material based on electrostatic spinning comprises the following steps:
(1) dispersing the nano carbon material in anhydrous DMF, carrying out ultrasonic treatment for 1-2h, adding thermoplastic polyurethane and an organic phase change material, and stirring for 12-24h to mix the materials into uniform spinning solution;
(2) performing electrostatic spinning on the spinning solution obtained in the step (1) to obtain a nano carbon material/TPU/phase change material composite fiber membrane, and drying the nano carbon material/TPU/phase change material composite fiber membrane for 24 hours at 20 ℃ in vacuum;
(3) mixing sodium 4-dodecylbenzenesulfonate and PEDOT: a PSS aqueous solution, immersing the electrostatic spinning film obtained in the step (2) into the solution, and carrying out ultrasonic treatment for 10-20 min;
(4) and (4) taking out the coating spinning film obtained in the step (3), removing redundant liquid, airing at room temperature, and then carrying out vacuum drying at a certain temperature for 1h to obtain the elastic intelligent temperature regulating material.
Further, in step (1), the TPU content is from 20 to 25% by weight.
Further, in the step (1), the nano-carbon material is a carbon nano-tube or graphene oxide; the amount is 0.5-2 wt%.
Further, in the step (1), the organic phase change material is one or more of 1-tetradecanol, octadecanoic acid, eicosane, lauric acid, paraffin, stearic acid and n-octadecane; the weight ratio to TPU is 0.5: 1, 1: 1, 1.5: 1 or 2: 1.
Further, in the step (2), the technological parameters of electrostatic spinning are as follows: the electrostatic spinning voltage is 10-20KV, the temperature is 18-25 deg.C, the humidity is 30-60%, the distance between the needle tip and the collecting device is 20-30cm, and the rotating speed of the roller collecting device is 50-200 rpm.
Further, in the step (3), sodium 4-dodecylbenzenesulfonate and PEDOT: the PSS ratio is 1: 90-100.
Further, in the step (4), the vacuum drying temperature is 80-100 ℃.
Further, the steps (3) and (4) are carried out 1 to 4 times. Further, in the step (1), the polystyrene content is 20 to 25 wt%.
The invention provides an electrostatic spinning-based elastic phase-change intelligent temperature regulating material prepared by the method.
The invention also provides application of the electrostatic spinning-based elastic phase change intelligent temperature regulating material.
Drawings
Fig. 1 is a scanning electron microscope image of the carbon nanotube/TPU/lauric acid composite electrospun film of example 1 of the present invention.
Fig. 2 is a transmission electron microscope image of the carbon nanotube/TPU composite fiber of example 1 of the present invention.
Figure 3 is PEDOT of example 1 of the invention: scanning electron microscope images of the electrospun film after PSS dip coating.
FIG. 4 is a DSC chart of the elastic phase transition intelligent temperature regulating material of example 1 of the present invention in different proportions.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to limit the scope of the present invention.
Example 1:
the preparation method of the electrostatic spinning-based elastic phase change intelligent temperature regulating material comprises the following steps:
(1) dispersing 0.1g of carbon nano tube in 8g of anhydrous DMF, carrying out ultrasonic treatment for 2h, adding 2g of TPU and 4g of lauric acid, and stirring for 24h to mix the mixture into uniform spinning solution;
(2) and (2) injecting the spinning solution obtained in the step (1) into an injector of an electrostatic spinning device for spinning. The spinning temperature is 20 ℃, the relative humidity is 45%, the spinning voltage is 15kV, the distance from a spinning needle to a receiving plate is 25cm, the advancing speed of the spinning solution is 0.8mL/h, the rotating speed of a roller of a receiving device is 100rpm/min, the carbon nano tube/TPU/lauric acid composite fiber membrane is obtained, and the carbon nano tube/TPU/lauric acid composite fiber membrane is dried for 24 hours at the temperature of 20 ℃ in vacuum; as can be seen from fig. 1, the carbon nanotube/TPU/lauric acid composite fiber has an uneven surface structure because lauric acid is distributed on the surface of the fiber and smooth elastic polyurethane is connected inside the fiber, so that the material has good elasticity (rough surface shape, a large amount of brittle phase change material is present).
As can be seen from the transmission electron microscope image of fig. 2, the carbon nanotubes with a diameter of about 20nm and a length of about 1 μm are dispersed inside the fiber, so that the thermal conductivity of the fiber is enhanced, and the fiber has response and conversion capability to electricity/light/heat due to the unique structure and properties of the carbon nanotubes, and the converted thermal energy is further stored in the phase change material lauric acid.
(3) Mixing 0.1g of sodium 4-dodecylbenzenesulfonate and 9g of PEDOT: the PSS aqueous solution is obtained by immersing the electrostatic spinning film in the step (2) into the solution and performing ultrasonic treatment for 10 min; .
(4) And taking out the coating spinning film, removing redundant liquid, airing at room temperature, and then carrying out vacuum drying at 80 ℃ for 1h to obtain the elastic intelligent temperature regulating material, wherein the diagram is shown in figure 3.
FIG. 3 is a scanning electron microscope image of an electrospun film after dip coating of PEDOT: PSS with high conductivity, and compared with FIG. 1, the fiber surface becomes smoother, demonstrating successful coating of the PEDOT: PSS coating. The conductive coating not only endows the material with good conductivity, but also can realize the blocking of the internal phase change material and prevent the internal phase change material from leaking in the phase change process, thereby realizing the shape stability and the reusability.
The material prepared by the embodiment 1 has good elasticity, good conductivity and good temperature regulation performance for responding to various stimuli such as electricity, light, heat and the like, and has wide application prospect in the fields of wearable electronic equipment and intelligent protective clothing.
In comparison with example 1, the lauric acid content was increased from 0 to the reaction system. From the DSC diagram of the elastic phase change smart temperature regulating material in fig. 4, the material after pure polyurethane coating has no phase change behavior. When lauric acid is added into the material, a melting peak and a crystallization peak appear on the curve, which indicates that the material has phase change energy storage behavior. And with the increase of the lauric acid content, the peak values of the melting peak and the crystallization peak are larger and larger, and the phase change behavior is more and more obvious.
Example 2:
the preparation method of the electrostatic spinning-based elastic phase change intelligent temperature regulating material comprises the following steps:
(1) dispersing 0.5g of carbon nano tube in 8g of anhydrous DMF, carrying out ultrasonic treatment for 2h, adding 2g of TPU and 1.5g of lauric acid, and stirring for 24h to mix the mixture into uniform spinning solution;
(2) and (2) injecting the spinning solution obtained in the step (1) into an injector of an electrostatic spinning device for spinning. The spinning temperature is 20 ℃, the relative humidity is 45%, the spinning voltage is 12kV, the distance from a spinning needle to a receiving plate is 25cm, the advancing speed of the spinning solution is 0.8mL/h, the rotating speed of a roller of a receiving device is 100rpm/min, the carbon nano tube/TPU/lauric acid composite fiber membrane is obtained, and the carbon nano tube/TPU/lauric acid composite fiber membrane is dried for 24 hours at the temperature of 20 ℃ in vacuum;
(3) mixing 0.1g of sodium 4-dodecylbenzenesulfonate and 9g of PEDOT: the PSS aqueous solution is obtained by immersing the electrostatic spinning film in the step (2) into the solution and performing ultrasonic treatment for 10 min;
(4) and taking out the coating spinning film, removing redundant liquid, airing at room temperature, and then carrying out vacuum drying at 80 ℃ for 1h to obtain the elastic intelligent temperature regulating material.
Example 3:
the preparation method of the electrostatic spinning-based elastic phase change intelligent temperature regulating material comprises the following steps:
(1) dispersing 0.1g of carbon nano tube in 8g of anhydrous DMF, carrying out ultrasonic treatment for 2h, adding 2g of TPU and 2g of lauric acid, and stirring for 24h to mix the mixture into uniform spinning solution;
(2) and (2) injecting the spinning solution obtained in the step (1) into an injector of electrostatic spinning equipment for spinning. The spinning temperature is 20 ℃, the relative humidity is 45%, the spinning voltage is 12kV, the distance from a spinning needle to a receiving plate is 25cm, the advancing speed of the spinning solution is 0.8mL/h, the rotating speed of a roller of a receiving device is 100rpm/min, the carbon nano tube/TPU/lauric acid composite fiber membrane is obtained, and the carbon nano tube/TPU/lauric acid composite fiber membrane is dried for 24 hours at the temperature of 20 ℃ in vacuum;
(3) mixing 0.1g of sodium 4-dodecylbenzenesulfonate and 9g of PEDOT: the PSS aqueous solution is obtained by immersing the electrostatic spinning film in the step (2) into the solution and performing ultrasonic treatment for 10 min;
(4) and taking out the coating spinning film, removing redundant liquid, airing at room temperature, and then drying in vacuum at 80 ℃ for 1 h.
(5) And (5) repeating the steps (3) and (4) for 2 times to obtain the elastic intelligent temperature regulating material.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments. Those skilled in the art should appreciate that many modifications and variations are possible in light of the above teaching without departing from the scope of the invention.
Claims (10)
1. A preparation method of an elastic phase-change intelligent temperature regulating material based on electrostatic spinning is characterized by comprising the following steps: which comprises the following steps:
(1) dispersing the nano carbon material in anhydrous DMF, carrying out ultrasonic treatment for 1-2h, adding thermoplastic polyurethane and an organic phase change material, and stirring for 12-24h to mix the materials into uniform spinning solution;
(2) carrying out electrostatic spinning on the spinning solution to obtain a nano carbon material/TPU/phase change material composite fiber membrane, and drying for 24 hours at 20 ℃ in vacuum;
(3) mixing sodium 4-dodecylbenzenesulfonate and PEDOT: PSS aqueous solution, immersing the electrostatic spinning film into the solution, and carrying out ultrasonic treatment for 10-20 min;
(4) and taking out the coating spinning film, removing redundant liquid, airing at room temperature, and then carrying out vacuum drying at a certain temperature for 1h to obtain the elastic intelligent temperature regulating material.
2. The method of claim 1, wherein: in step (1), the TPU content is from 20 to 25% by weight.
3. The method of claim 1, wherein: in the step (1), the nano carbon material is a carbon nano tube or graphene oxide; the amount is 0.5-2 wt%.
4. The method of claim 1, wherein: in the step (1), the organic phase change material is one or more of 1-tetradecanol, octadecanoic acid, eicosane, lauric acid, paraffin, stearic acid and octadecane; the weight ratio to TPU is 0.5: 1, 1: 1, 1.5: 1 or 2: 1.
5. The method of claim 1, wherein: in the step (2), the technological parameters of electrostatic spinning are as follows: the electrostatic spinning voltage is 10-20KV, the temperature is 18-25 deg.C, the humidity is 30-60%, the distance between the needle tip and the collecting device is 20-30cm, and the rotating speed of the roller collecting device is 50-200 rpm.
6. The method of claim 1, wherein: in the step (3), the ratio of the 4-dodecyl benzene sulfonic acid sodium to the PEDOT to the PSS is 1: 90-100.
7. The method of claim 1, wherein: in the step (4), the vacuum drying temperature is 80-100 ℃.
8. The method of claim 1, wherein: and (4) carrying out the steps (3) and (4) for 1-4 times.
9. An elastic phase change smart temperature regulating material prepared by the method of claim 1.
10. Use of the elastic phase change smart temperature regulating material of claim 9.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113005644A (en) * | 2021-03-04 | 2021-06-22 | 东华大学 | Preparation method of stretchable self-healing thermoelectric composite film |
| CN113638128A (en) * | 2021-08-13 | 2021-11-12 | 大连理工大学 | Preparation method of thin film material capable of realizing temperature and strain dual-function self-driven sensing |
| CN115045043A (en) * | 2022-06-22 | 2022-09-13 | 五邑大学 | Flexible phase change energy storage sensor and preparation method and application thereof |
| CN116590915A (en) * | 2023-04-11 | 2023-08-15 | 华南理工大学 | Photo-induced heating and temperature-induced elastic phase change energy storage fiber and preparation method thereof |
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| CN113005644A (en) * | 2021-03-04 | 2021-06-22 | 东华大学 | Preparation method of stretchable self-healing thermoelectric composite film |
| CN113638128A (en) * | 2021-08-13 | 2021-11-12 | 大连理工大学 | Preparation method of thin film material capable of realizing temperature and strain dual-function self-driven sensing |
| CN115045043A (en) * | 2022-06-22 | 2022-09-13 | 五邑大学 | Flexible phase change energy storage sensor and preparation method and application thereof |
| CN115045043B (en) * | 2022-06-22 | 2024-05-28 | 五邑大学 | Flexible phase-change energy storage sensor and preparation method and application thereof |
| CN116590915A (en) * | 2023-04-11 | 2023-08-15 | 华南理工大学 | Photo-induced heating and temperature-induced elastic phase change energy storage fiber and preparation method thereof |
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Application publication date: 20200811 |