CN113583634A - Intelligent graphene temperature-sensing phase change fiber - Google Patents
Intelligent graphene temperature-sensing phase change fiber Download PDFInfo
- Publication number
- CN113583634A CN113583634A CN202110830604.9A CN202110830604A CN113583634A CN 113583634 A CN113583634 A CN 113583634A CN 202110830604 A CN202110830604 A CN 202110830604A CN 113583634 A CN113583634 A CN 113583634A
- Authority
- CN
- China
- Prior art keywords
- graphene
- fiber
- phase
- change
- intelligent temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 166
- 239000000835 fiber Substances 0.000 title claims abstract description 124
- 230000008859 change Effects 0.000 title claims abstract description 40
- 239000004964 aerogel Substances 0.000 claims abstract description 65
- 239000012782 phase change material Substances 0.000 claims abstract description 48
- 239000011148 porous material Substances 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 30
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 claims description 5
- 239000004386 Erythritol Substances 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 5
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 claims description 5
- 229940009714 erythritol Drugs 0.000 claims description 5
- 235000019414 erythritol Nutrition 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 238000004146 energy storage Methods 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000011232 storage material Substances 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004005 microsphere Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- 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
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
-
- 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
- D06M13/10—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 oxygen
- D06M13/144—Alcohols; Metal alcoholates
-
- 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
- D06M13/10—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 oxygen
- D06M13/144—Alcohols; Metal alcoholates
- D06M13/148—Polyalcohols, e.g. glycerol or glucose
-
- 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
- D06M13/10—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 oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- 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
- D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
-
- 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
- D06M15/53—Polyethers
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a graphene intelligent temperature-sensing phase change fiber, which consists of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber. The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m. The porosity of the graphene three-dimensional porous network structure is 1-99%. The fiber prepared by the invention has excellent electricity, flexibility and hydrophobic property, and also has adjustable phase-change material load capacity, enthalpy value and melting point, and has good application in the aspects of phase-change energy storage, photo-thermal conversion and storage, and electrothermal conversion and storage.
Description
Technical Field
The invention relates to a graphene composite phase change fiber, in particular to a graphene intelligent temperature-sensing phase change fiber.
Background
The phase-change fiber has an intelligent temperature-adjusting function, when the external temperature changes rapidly, the phase-change material in the fiber can change from solid to liquid or from solid to solid, the influence of the temperature change on the human body is buffered, and a comfortable microclimate environment is created for the human body. With the development of wearable/portable electronic products, flexible energy storage devices have received attention. And the intelligent fiber with multiple functions and multiple responses is used as a basic composition unit of a wearable device, so that the intelligent fiber has great demand space. How to endow the phase change fiber with multiple stimulation response performance and realize functions of active temperature adjustment, energy storage, self-cleaning and the like becomes a major challenge.
The traditional phase change energy storage material is mostly applied to the phase change energy storage material by a bracket material of a large-scale equipment container closed or a large-scale block body. The introduction of the aerogel enables the phase-change material to show good electrical and optical thermal response, and realizes the conversion and utilization of heat energy. However, in the conventional application, such a large size cannot be applied to the existing flexible wearable device and the increasingly miniaturized electronic circuit, so that the intelligent phase change fiber with good flexibility and conductivity will become an important direction for future development.
In view of the demand of flexible wearable equipment and increasingly miniaturized intelligent devices on new materials, an intelligent phase change material with novel structure and performance is urgently needed to be provided, the purposes of simple process, short production period and low cost are achieved, the advantages of the phase change energy storage material are fully exerted, the application of the phase change material is pushed to a new height, and the increasing demand of the flexible wearable equipment and increasingly miniaturized intelligent devices is further met.
Disclosure of Invention
The invention aims to provide a graphene composite phase-change fiber, which fully exerts the advantages of a phase-change energy storage material, meets the increasing requirements of flexible wearable equipment and increasingly miniaturized intelligent devices, and has the advantages of simple preparation process, short production period and low cost.
In order to achieve the above object, the present invention provides a graphene intelligent temperature-sensitive phase-change fiber, wherein the graphene intelligent temperature-sensitive phase-change fiber is composed of a graphene aerogel fiber, a phase-change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
The graphene intelligent temperature-sensing phase-change fiber is characterized in that the content of graphene aerogel fibers in the graphene intelligent temperature-sensing phase-change fiber is 10-50 wt%.
The graphene intelligent temperature-sensing phase-change fiber is characterized in that the graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The graphene intelligent temperature-sensing phase-change fiber is characterized in that the porosity of the graphene three-dimensional porous network structure is 1-99%.
The graphene intelligent temperature-sensing phase-change fiber is characterized in that the diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The graphene intelligent temperature-sensing phase change fiber is characterized in that the content of the phase change material in the graphene intelligent temperature-sensing phase change fiber is 49-89 wt%.
The graphene intelligent temperature-sensitive phase-change fiber comprises a phase-change material, wherein the phase-change material comprises any one or more of paraffin, polyol, polyethylene glycol, erythritol, alkane, higher fatty alcohol, higher fatty acid and polyolefin.
The graphene intelligent temperature-sensitive phase-change fiber is characterized in that the phase-change latent heat of the graphene intelligent temperature-sensitive phase-change fiber is 1-300J/g.
The graphene intelligent temperature-sensing phase change fiber provided by the invention has the following advantages:
the graphene aerogel intelligent phase-change fiber disclosed by the invention has excellent electricity, flexibility and hydrophobic property, and also has adjustable phase-change material load capacity, enthalpy value and melting point, so that the graphene aerogel intelligent phase-change fiber has good application in the aspects of phase-change energy storage, photo-thermal conversion and storage, and electrothermal conversion and storage, and is simple in preparation process, mild and controllable in reaction conditions, green, pollution-free, suitable for large-scale production, and wide in application prospect.
Detailed Description
The following further describes embodiments of the present invention.
The intelligent graphene temperature-sensing phase-change fiber provided by the invention consists of a graphene aerogel fiber, a phase-change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
The graphene intelligent temperature-sensing phase change fiber is prepared by firstly preparing a graphene aerogel fiber, then wrapping a phase change material outside the graphene aerogel fiber, and finally uniformly coating a hydrophobic coating on the surface of the graphene intelligent temperature-sensing phase change fiber. The equipment used in the preparation process is known to those skilled in the art.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 10-50 wt%.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The graphene aerogel fiber is prepared by adding a graphene material, silicon dioxide and a modifier into distilled water, heating and performing ultrasonic dispersion to prepare a graphene-silicon dioxide dispersion solution; spraying the obtained dispersion liquid on a receiver through an ultrasonic spraying device, uniformly coating a modifying agent on the receiver to form graphene-silicon dioxide microspheres, then preparing graphene-silicon dioxide powder through freeze drying, and finally heating the powder in an inert gas atmosphere to prepare graphene-silicon dioxide aerogel microspheres; uniformly mixing the obtained aerogel microspheres with a fiber-forming polymer, and adding the mixture into a double-screw extruder to perform extrusion granulation to obtain graphene aerogel composite master batches; and drying the obtained master batch, adding the master batch into a screw extruder for heating and melting, filtering the master batch through a spinning manifold, and then spinning the master batch into bundles to obtain the graphene aerogel composite fiber.
Wherein, the modifier comprises polyvinyl alcohol, hydroxymethyl cellulose, polyvinylpyrrolidone (PVP), silane coupling agent, etc.
Fiber-forming polymers include PET (polyethylene terephthalate), PA6 (polyamide, i.e., nylon 6), PA66 (polyhexamethylene adipamide, i.e., nylon-66), PP (polypropylene), PE (polyethylene), and the like. Various low molecular organic matters produced by taking coal, petroleum, natural gas and the like as raw materials through a series of chemical actions are called monomers, and then fiber-forming polymers are obtained through artificial synthesis, or certain inorganic raw materials can be processed into the fiber-forming polymers.
In the graphene intelligent temperature-sensing phase change fiber, the content of the phase change material is preferably 49-89 wt%. More preferably 55 to 85 wt%.
The phase change material comprises any one or more of paraffin, polyol, polyethylene glycol, erythritol, alkane, higher fatty alcohol, higher fatty acid and polyolefin.
The hydrophobic coating uses existing coating materials known to those skilled in the art.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fiber is 1-300J/g.
The graphene intelligent temperature-sensitive phase-change fiber provided by the invention is further described with reference to the following embodiments.
Example 1
A graphene intelligent temperature-sensing phase change fiber is composed of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 10 wt%, the content of the phase-change material is 89 wt%, and the balance is the hydrophobic coating.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The phase change material comprises paraffin.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fibers is 1-300J/g.
Example 2
A graphene intelligent temperature-sensing phase change fiber is composed of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 10-12 wt%, the content of the phase-change material is 85 wt%, and the balance is the hydrophobic coating.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The phase change material comprises a polyol or polyethylene glycol.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fibers is 1-300J/g.
Example 3
A graphene intelligent temperature-sensing phase change fiber is composed of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 10-25 wt%, the content of the phase-change material is 70 wt%, and the balance is the hydrophobic coating.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The phase change material comprises erythritol.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fibers is 1-300J/g.
Example 4
A graphene intelligent temperature-sensing phase change fiber is composed of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 40 wt%, the content of the phase-change material is 55 wt%, and the balance is the hydrophobic coating.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The phase change material includes any one of alkane, higher aliphatic alcohol, higher aliphatic acid, and polyolefin.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fibers is 1-300J/g.
Example 5
A graphene intelligent temperature-sensing phase change fiber is composed of a graphene aerogel fiber, a phase change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
Preferably, in the graphene intelligent temperature-sensitive phase-change fiber, the content of the graphene aerogel fiber is 50 wt%, the content of the phase-change material is 49 wt%, and the balance is the hydrophobic coating.
The graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with the pore diameter of below 2nm, mesopores with the pore diameter of 2-50 nm and macropores with the pore diameter of 50 nm-500 mu m.
The porosity of the graphene three-dimensional porous network structure is 1-99%.
The diameter of the graphene aerogel fiber is 10 mu m-1 mm, and the length-diameter ratio is 10-107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
The phase change material includes any of paraffin, polyol, polyethylene glycol, erythritol, alkane, higher fatty alcohol, higher fatty acid, and polyolefin.
The latent heat of phase change of the intelligent graphene temperature-sensitive phase change fibers is 1-300J/g.
The fibers of five formulas in all the embodiments of the invention are tested at different temperatures, and after testing the heat absorption and release time, the heat absorption and release speed is firstly increased and then slowed down along with the addition of the graphene.
Phase change material in this graphite alkene intelligence temperature sensing phase change fibre takes place solid-state, liquid interconversion along with temperature variation to reach heat absorption, exothermic effect, through the addition of graphite alkene, accelerate the heat absorption heat dissipation reaction speed. Therefore, intelligent temperature regulation can be realized, the temperature reduction is facilitated when the human body is hot, the temperature rise is realized when the human body is cold, and the human body is kept in a comfortable microclimate as much as possible.
The graphene intelligent temperature-sensing phase change fiber provided by the invention comprises a graphene aerogel fiber, a phase change material and a hydrophobic coating. The graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber. The graphene intelligent temperature-sensing phase change fiber has excellent electricity, flexibility and hydrophobic property, and adjustable phase change material loading capacity, enthalpy value and melting point, is an intelligent phase change material with novel structure and performance, can give full play to the advantages of a phase change energy storage material, pushes the application of the phase change material to a new height, further meets the increasing requirements of flexible wearable equipment and increasingly miniaturized intelligent devices, and has the characteristics of simple process, short production period, low cost and the like.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (8)
1. The intelligent graphene temperature-sensing phase-change fiber is characterized by consisting of a graphene aerogel fiber, a phase-change material and a hydrophobic coating; the graphene aerogel fiber has a continuous graphene three-dimensional porous network structure formed by overlapping graphene sheet layers, the phase-change material is wrapped on the graphene sheet layers and filled and embedded in the three-dimensional porous network structure, and the hydrophobic coating is uniformly wrapped on the surface of the graphene aerogel fiber.
2. The graphene intelligent temperature-sensitive phase-change fiber according to claim 1, wherein the content of the graphene aerogel fiber in the graphene intelligent temperature-sensitive phase-change fiber is 10-50 wt%.
3. The graphene intelligent temperature-sensitive phase-change fiber according to claim 2, wherein the graphene aerogel fiber has a graphene three-dimensional porous network structure consisting of micropores with a pore size of 2nm or less, mesopores with a pore size of 2-50 nm, and macropores with a pore size of 50 nm-500 μm.
4. The graphene intelligent temperature-sensitive phase-change fiber according to claim 3, wherein the porosity of the graphene three-dimensional porous network structure is 1-99%.
5. The graphene intelligent temperature-sensitive phase-change fiber according to claim 3, wherein the diameter of the graphene aerogel fiber is 10 μm to 1mm, and the length-diameter ratio is 10 to 107: 1, the specific surface area is 1-1200 m2A pore volume of 0.1 to 3.5cm3/g。
6. The graphene intelligent temperature-sensitive phase-change fiber according to claim 1, wherein the content of the phase-change material in the graphene intelligent temperature-sensitive phase-change fiber is 49-89 wt%.
7. The graphene intelligent temperature-sensitive phase-change fiber according to claim 1, wherein the phase-change material comprises any one or more of paraffin, polyol, polyethylene glycol, erythritol, alkane, higher fatty alcohol, higher fatty acid and polyolefin.
8. The graphene intelligent temperature-sensitive phase-change fiber according to claim 1, wherein the latent heat of phase change of the graphene intelligent temperature-sensitive phase-change fiber is 1-300J/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830604.9A CN113583634A (en) | 2021-07-22 | 2021-07-22 | Intelligent graphene temperature-sensing phase change fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830604.9A CN113583634A (en) | 2021-07-22 | 2021-07-22 | Intelligent graphene temperature-sensing phase change fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113583634A true CN113583634A (en) | 2021-11-02 |
Family
ID=78249055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110830604.9A Pending CN113583634A (en) | 2021-07-22 | 2021-07-22 | Intelligent graphene temperature-sensing phase change fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113583634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536013A (en) * | 2022-10-17 | 2022-12-30 | 厦门大学 | Preparation method and application of graphene aerogel for dynamic thermal management of lithium ion battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342187A (en) * | 2018-02-07 | 2018-07-31 | 东南大学 | The high heat conduction graphene aerogel composite phase-change material and preparation method of controlled shape |
| CN108587571A (en) * | 2018-04-18 | 2018-09-28 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel intelligence phase change fiber, preparation method and application |
| CN110655910A (en) * | 2019-11-13 | 2020-01-07 | 南京工业大学 | Preparation method of graphene aerogel phase-change energy storage material |
-
2021
- 2021-07-22 CN CN202110830604.9A patent/CN113583634A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342187A (en) * | 2018-02-07 | 2018-07-31 | 东南大学 | The high heat conduction graphene aerogel composite phase-change material and preparation method of controlled shape |
| CN108587571A (en) * | 2018-04-18 | 2018-09-28 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel intelligence phase change fiber, preparation method and application |
| CN110655910A (en) * | 2019-11-13 | 2020-01-07 | 南京工业大学 | Preparation method of graphene aerogel phase-change energy storage material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536013A (en) * | 2022-10-17 | 2022-12-30 | 厦门大学 | Preparation method and application of graphene aerogel for dynamic thermal management of lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Novel semi‐interpenetrating network structural phase change composites with high phase change enthalpy | |
| Wei et al. | Photo-and electro-responsive phase change materials based on highly anisotropic microcrystalline cellulose/graphene nanoplatelet structure | |
| Du et al. | Amino-functionalized single-walled carbon nanotubes-integrated polyurethane phase change composites with superior photothermal conversion efficiency and thermal conductivity | |
| Zhao et al. | Flexible phase change materials: Preparation, properties and application | |
| Umair et al. | Novel strategies and supporting materials applied to shape-stabilize organic phase change materials for thermal energy storage–A review | |
| JP6208793B2 (en) | Polymer composite having highly reversible thermal properties and method for forming the same | |
| Yang et al. | Hierarchically porous PVA aerogel for leakage-proof phase change materials with superior energy storage capacity | |
| Kenisarin et al. | Form-stable phase change materials for thermal energy storage | |
| Zeng et al. | Myristic acid/polyaniline composites as form stable phase change materials for thermal energy storage | |
| Lin et al. | Experimental investigation of form-stable phase change material with enhanced thermal conductivity and thermal-induced flexibility for thermal management | |
| Zhao et al. | High interface compatibility and phase change enthalpy of heat storage wood plastic composites as bio-based building materials for energy saving | |
| Du et al. | Multifunctional shape-stabilized phase change composites based upon multi-walled carbon nanotubes and polypyrrole decorated melamine foam for light/electric-to-thermal energy conversion and storage | |
| Li et al. | Light-to-thermal conversion and thermoregulated capability of coaxial fibers with a combined influence from comb-like polymeric phase change material and carbon nanotube | |
| JP2011515551A (en) | Method for producing phase change material polymer composite | |
| Döğüşcü et al. | High internal phase emulsion templated-polystyrene/carbon nano fiber/hexadecanol composites phase change materials for thermal management applications | |
| CN114874756B (en) | Composite phase change material and preparation method and application thereof | |
| Gao et al. | Preparation and structure-properties of crosslinking organic montmorillonite/polyurethane as solid-solid phase change materials for thermal energy storage | |
| CN113583634A (en) | Intelligent graphene temperature-sensing phase change fiber | |
| Liu et al. | Polymer engineering in phase change thermal storage materials | |
| Yang et al. | Review on organic phase change materials for sustainable energy storage | |
| Bai et al. | PVA/sodium alginate multi-network aerogel fibers, incorporated with PEG and ZnO, exhibit enhanced temperature regulation, antibacterial, thermal conductivity, and thermal stability | |
| Marani et al. | Multiphysics study on cement-based composites incorporating green biobased shape-stabilized phase change materials for thermal energy storage | |
| Yin et al. | Polyrotaxane based leakage-proof and injectable phase change materials with high melting enthalpy and adjustable transition temperature | |
| Xu et al. | A review: Progress and perspectives of research on the functionalities of phase change materials | |
| Chen et al. | Soft-hard complex microsphere strategy to construct high-temperature form-stable phase change material for melt-spun temperature-regulating fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211102 |
|
| RJ01 | Rejection of invention patent application after publication |