CN111557580A - Lightweight thermos flask and preparation method thereof - Google Patents
Lightweight thermos flask and preparation method thereof Download PDFInfo
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- CN111557580A CN111557580A CN202010288438.XA CN202010288438A CN111557580A CN 111557580 A CN111557580 A CN 111557580A CN 202010288438 A CN202010288438 A CN 202010288438A CN 111557580 A CN111557580 A CN 111557580A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/12—Vessels or pots for table use
- A47G19/127—Vessels or pots for table use with means for keeping liquid cool or hot
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
- A45F3/16—Water-bottles; Mess-tins; Cups
- A45F3/18—Water-bottles; Mess-tins; Cups of rigid material
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/0083—Accessories
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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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- 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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
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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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/08—Organic compounds
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
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- 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
- D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
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- 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
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
Abstract
The invention relates to the technical field of thermo jug, in particular to a lightweight thermo jug and a preparation method thereof. The light-weight thermos bottle prepared by the invention has lighter weight, is more convenient to carry and use, and can keep the temperature of water in the bottle at a temperature suitable for human body entrance for a longer time.
Description
Technical Field
The invention relates to the technical field of thermo jug, in particular to a lightweight thermo jug and a preparation method thereof.
Background
Conventional thermo jug adopts the stainless steel to make usually, the surface at the kettle wall is wrapping up the heat preservation, the protective layer is equipped with in the heat preservation outside, can reduce the heat dissipation of kettle wall like this, it reaches energy-conserving heat retaining effect to reduce energy loss, there is vacuum thermo jug, generally contain three layer construction, the inner bag, the vacuum layer, the outer courage, but because the thermo jug is made of metal, the multilayer heat preservation measure of conventional thermo jug can make thermo jug weight heavier, even only the vacuum thermo jug of outer courage and inner bag, because the general thickness of inner bag of current vacuum thermo jug is thick, thereby lead to its weight heavier, and lead to the weight of the thermo jug that finally obtains heavier, the product use of harm user experiences, inconvenient carrying and use, consequently need a lightweight thermo jug at present.
Disclosure of Invention
In view of the above, the present invention provides a lightweight thermos bottle and a manufacturing method thereof, wherein the thermos bottle has a lighter weight, is more convenient to carry and use, and can keep the temperature of water in the thermos bottle at a temperature suitable for human body entrance for a longer time.
The invention solves the technical problems by the following technical means:
the light-weight heat preservation pot comprises a shell and an inner container, wherein the inner container is processed and formed by adopting a rotary thinning technology, a temperature regulation layer is fixedly wrapped on the outer surface of the inner container, the temperature regulation layer is formed by weaving modified carbon fibers to form a net structure as a carrier, and temperature regulation microcapsules are loaded on the carrier.
According to the lightweight thermos bottle, in the preparation process, the inner container is processed and formed by adopting a rotary thinning technology, compared with the conventional thermos bottle, the inner container is thinner, so that the weight is lighter, even if the inner container is coated with the temperature adjusting layer, the temperature adjusting layer takes carbon fibers as a carrier, the carbon fibers have the characteristic of light weight, and the temperature adjusting layer is of a net structure, so that compared with the existing thermos bottle, the lightweight thermos bottle is lighter in weight and more convenient to carry and use.
In addition, the temperature regulating layer arranged on the outer surface of the inner container combines the modified carbon fiber as a carrier and the temperature regulating microcapsule for use, the carbon fiber has good heat conducting property, the carbon fiber is used as the carrier, the timely transmission of heat can be ensured to a certain extent, the heat is stored or released by the temperature regulating microcapsule, the time for reducing hot water in the vacuum cup to the temperature suitable for the human body inlet can be shortened, and the holding time of the temperature can be prolonged, and compared with the existing method for directly filling the phase change material between the inner container and the shell of the temperature keeping kettle, the temperature regulating layer structure is arranged, the structure of the temperature regulating layer is always kept unchanged in the using process, the phenomenon that the phase change material is heated to become liquid and flows, the condition of uneven distribution appears after cooling and solidification can not occur, and the phase change material can not contact with the inner container of the vacuum cup when being liquefied because the phase change material is separated from the inner container of the vacuum, the situation that the phase-change material is immersed into the liner of the vacuum cup or even leaked along with the use can not occur, so that the use is safer and healthier.
Further, the modified carbon fiber is prepared by pretreating carbon fiber and then grafting alkenyl succinic anhydride for modification.
Furthermore, the temperature-regulating microcapsule takes silicon dioxide as a capsule shell and takes an octadecanol/butyl stearate compound as a capsule core.
The silicon dioxide has better heat conductivity, can better play a role in temperature regulation and timely conduct heat, and simultaneously has better heat resistance and aging resistance compared with high polymer materials.
Further, the mass ratio of the octadecanol to the butyl stearate in the octadecanol/butyl stearate compound is 4: 1.
In addition, the invention also discloses a preparation method of the light-weight thermos flask, which comprises the following steps:
s1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clear water, cleaning the product, and then putting the product into a water expansion machine, and adjusting the pressure to 12-14MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
s8, polishing the outer surface of the prepared inner container, then coating a temperature-adjusting layer, performing corona treatment for 10-15min, then coating heat-conducting silica gel with the thickness of 0.1-0.2mm, pressurizing to 0.15MPa at the temperature of 40 ℃, keeping for 30min, pressurizing to 0.2MPa, keeping for 1.5h and curing;
and S9, the inner container and the shell which are prepared in the step S8 are connected together through welding, then the base is welded, and the light-weight heat preservation pot is obtained after vacuumizing.
Heat conduction silica gel and inner bag have good adhesion properties, consequently utilize heat conduction silica gel to fix the cladding at the surface of inner bag with the layer of adjusting temperature, heat conduction silica gel also has better heat conductivility simultaneously, can improve the heat transfer efficiency on the layer of adjusting temperature to a certain extent, when the water level changes in the thermo jug, also can be better carry out thermal transmission, promote the utilization efficiency of the microcapsule that adjusts temperature.
Further, the preparation method of the temperature adjusting layer comprises the following steps:
preparing a carrier: aggregating the modified carbon fibers into fiber bundles with the diameter of 0.1-0.3mm, and weaving the fiber bundles into a net to obtain a carrier;
loading: according to the proportion, octadecanol and butyl stearate are respectively taken, magnetic stirring is carried out for 1 hour under the condition of a constant-temperature water bath at the temperature of 60 ℃, the capsule core raw material is obtained after cooling to the room temperature, the capsule core raw material and hexadecyl trimethyl ammonium bromide are respectively weighed according to the mass ratio of 4:3 and are placed in a reaction kettle, absolute ethyl alcohol with the mass being fifty times that of the capsule core raw material is added, n-amyl alcohol is added, after stirring and mixing are carried out uniformly, a carrier is added, ultrasonic dispersion is carried out for 1.5 hours under the condition of 60 ℃, tetraethyl orthosilicate is dropwise added at the speed of 1-2d/s, heat preservation is carried out, stirring and reaction is carried out for 1 hour continuously, 25 wt% of ammonia water solution is dropwise added at the speed of 1d/s, stirring and reaction are carried out for 24 hours continuously, after the reaction is finished, filtration is carried out.
Further, the preparation method of the modified carbon fiber comprises the following steps: stirring and dispersing the pretreated carbon fiber in 70 wt% ethanol solution, adding 20% sodium hydroxide solution to adjust the pH value to 8.5, adding 3-mercaptopropyltrimethoxysilane, magnetically stirring for 20min, adding alkenyl succinic anhydride, reacting at 80 ℃ for 1h at a constant temperature, cooling to room temperature, filtering, washing and drying to obtain the modified carbon fiber.
Because the surface of the silicon dioxide contains a plurality of hydroxyl groups, alkenyl succinic anhydride is grafted on the carbon fiber, so that the alkenyl succinic anhydride can react with the hydroxyl groups on the surface of the silicon dioxide in the preparation process of the temperature-regulating layer loading step, the generated temperature-regulating microcapsule is promoted to be directly generated on the surface of the carrier in situ, and the connection is firmer.
Further, the pretreatment comprises the following steps: soaking carbon fibers in an acetone solution, performing ultrasonic dispersion for 30min, performing reflux reaction at 65 ℃ for 3h, filtering after the reaction is finished, washing with deionized water, drying, placing in a mixed acid solution, performing heat preservation and reflux reaction at 60 ℃ for 6h, filtering after the reaction is finished, washing with deionized water until a washing solution is neutral, drying, and performing plasma treatment.
The carbon fiber surface is pre-oxidized and acidified through the mixed acid solution, the carbon fiber is activated to a certain degree, and the plasma treatment is performed, so that the plasma impacts the carbon fiber, the surface of the carbon fiber becomes rougher, the subsequent load is more facilitated, and the further activation can be performed on the carbon fiber through the plasma treatment, and the subsequent grafting reaction is more facilitated.
Further, the mixed acid solution is a mixed solution of concentrated nitric acid and concentrated sulfuric acid, and the volume ratio of the concentrated nitric acid to the concentrated sulfuric acid is 3: 1.
Furthermore, the plasma treatment uses oxygen as the working gas, the power is 120-150W, and the treatment time is 3-5 min.
The invention has the beneficial effects that:
1. according to the lightweight thermos bottle, the inner container is processed and formed by adopting a rotary thinning technology, and compared with the conventional thermos bottle, the inner container is thinner, so that the lightweight thermos bottle is lighter in weight and more convenient to carry and use.
2. According to the lightweight thermos bottle, the temperature adjusting layer is arranged outside the inner container, the modified carbon fiber is used as the carrier and is combined with the temperature adjusting microcapsule for use, the timely transmission of heat can be ensured to a certain extent, the temperature adjusting microcapsule is used for storing or releasing the heat, the time for reducing hot water in the thermos bottle to the temperature suitable for the human body inlet can be shortened, and the temperature keeping time is prolonged.
3. Due to the arrangement of the temperature regulating layer structure, the temperature regulating layer structure is more stable, the phase change material cannot be contacted with the inner container of the vacuum cup during liquefaction, and the situation that the phase change material is immersed into the inner container of the vacuum cup or even leaks when the phase change material is used is avoided, so that the temperature regulating layer structure is safer and healthier to use.
Detailed Description
The present invention will be described in detail with reference to specific examples below:
the invention relates to a lightweight thermos flask, which comprises a shell and an inner container, wherein the inner container is processed and formed by adopting a spinning technology, the outer surface of the inner container is fixedly wrapped with a temperature regulating layer, the temperature regulating layer is formed by weaving modified carbon fibers into a net structure as a carrier and loading temperature regulating microcapsules on the carrier, and the temperature regulating microcapsules take silicon dioxide as a capsule shell and octadecanol/butyl stearate compound as a capsule core. The method comprises the following specific steps:
example one
Preparation of modified carbon fiber
Preparing concentrated nitric acid and concentrated sulfuric acid according to a volume ratio of 3:1 to form a mixed acid solution, completely soaking carbon fibers in an acetone solution, performing ultrasonic dispersion for 30min, performing reflux reaction at 65 ℃ for 3h, filtering after the reaction is finished, washing with deionized water, drying, completely soaking in the mixed acid solution, performing heat preservation and reflux reaction at 60 ℃ for 6h, filtering after the reaction is finished, washing with deionized water until the washing liquid is neutral, drying, treating with oxygen as a working gas, and performing plasma treatment for 3min for later use under the condition that the power is 120W.
Stirring and dispersing the pretreated carbon fiber in 70 wt% ethanol solution which is 5 times of the mass of the carbon fiber, adding 20% sodium hydroxide solution to adjust the pH value to 8.5, adding 3-mercaptopropyltrimethoxysilane which is 0.1 time of the mass of the carbon fiber, magnetically stirring for 20min, adding alkenyl succinic anhydride which is 0.36 time of the mass of the carbon fiber, carrying out heat preservation reaction for 1h at the temperature of 80 ℃, cooling to room temperature, filtering, washing and drying to obtain the modified carbon fiber.
Preparation of temperature control layer
Preparing a carrier: aggregating the modified carbon fibers into fiber bundles with the diameter of 0.1-0.15mm, and weaving the fiber bundles into a net to obtain the carrier.
Loading: respectively taking octadecanol and butyl stearate according to the mass ratio of 4:1, magnetically stirring for 1h under the condition of a constant-temperature water bath at 60 ℃, cooling to room temperature to obtain capsule core raw materials, respectively weighing the capsule core raw materials and hexadecyl trimethyl ammonium bromide according to the mass ratio of 4:3, placing the capsule core raw materials and the hexadecyl trimethyl ammonium bromide into a reaction kettle, adding absolute ethyl alcohol with the mass of fifty times of the capsule core raw materials, adding 1/6 n-amyl alcohol with the mass of the absolute ethyl alcohol, stirring and mixing uniformly, adding a carrier, ultrasonically dispersing for 1.5h under the condition of 60 ℃, dropwise adding tetraethyl orthosilicate with the mass of 0.3 time of the carrier at the speed of 2d/s, preserving heat, continuously stirring and reacting for 1h, dropwise adding an ammonia water solution with the mass of 25 wt% of tetraethyl orthosilicate at the speed of 1d/s, continuously stirring and reacting for 24h, filtering after the reaction is finished, washing precipitates with the absolute ethyl alcohol, taking out the carrier, and obtaining the temperature adjusting layer.
Preparation of thermo jug
S1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clean water, cleaning the product, and then putting the product into a water expansion machine, and adjusting the pressure to 14MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
s8, polishing the outer surface of the prepared inner container, then coating a temperature-adjusting layer, carrying out corona treatment for 15min under the conditions that the temperature is 35 ℃, the air relative humidity is 20% and the electric field strength is 320kv/m, then coating heat-conducting silica gel with the thickness of 0.1mm, pressurizing to 0.15MPa at the temperature of 40 ℃, keeping for 30min, pressurizing to 0.2MPa, keeping for 1.5h for curing;
and S9, the inner container and the shell which are prepared in the step S8 are connected together through welding, then the base is welded, and the light-weight heat preservation pot is obtained after vacuumizing.
In the step S8, after curing, a layer of epoxy resin adhesive layer with a thickness of 0.1-0.2mm may be further formed on the outer surface by a conventional coating and curing method, so that the temperature-adjusting layer and the inner container can be bonded more stably.
Example two
Preparation of modified carbon fiber
Preparing concentrated nitric acid and concentrated sulfuric acid according to a volume ratio of 3:1 to form a mixed acid solution, soaking carbon fibers in an acetone solution, performing ultrasonic dispersion for 30min, performing reflux reaction at 65 ℃ for 3h, filtering after the reaction is finished, washing with deionized water until the washing liquid is neutral, drying, placing in the mixed acid solution, performing heat preservation and reflux reaction at 60 ℃ for 6h, filtering after the reaction is finished, washing with deionized water until the washing liquid is neutral, drying, treating with oxygen as a working gas, and performing plasma treatment for 4min for later use under the condition that the power is 135W.
Stirring and dispersing the pretreated carbon fiber in 70 wt% ethanol solution which is 8 times of the mass of the carbon fiber, adding 20% sodium hydroxide solution to adjust the pH value to 8.5, adding 3-mercaptopropyltrimethoxysilane which is 0.1 time of the mass of the carbon fiber, magnetically stirring for 20min, adding alkenyl succinic anhydride which is 0.4 time of the mass of the carbon fiber, carrying out heat preservation reaction for 1h at the temperature of 80 ℃, cooling to room temperature, filtering, washing and drying to obtain the modified carbon fiber.
Preparation of temperature control layer
Preparing a carrier: aggregating the modified carbon fibers into fiber bundles with the diameter of 0.15-0.3mm, and weaving the fiber bundles into a net to obtain the carrier.
Loading: respectively taking octadecanol and butyl stearate according to the mass ratio of 4:1, magnetically stirring for 1h under the condition of a constant-temperature water bath at 60 ℃, cooling to room temperature to obtain capsule core raw materials, respectively weighing the capsule core raw materials and hexadecyl trimethyl ammonium bromide according to the mass ratio of 4:3, placing the capsule core raw materials and the hexadecyl trimethyl ammonium bromide into a reaction kettle, adding absolute ethyl alcohol with the mass of fifty times of the capsule core raw materials, adding 1/4 n-amyl alcohol with the mass of the absolute ethyl alcohol, stirring and mixing uniformly, adding a carrier, ultrasonically dispersing for 1.5h under the condition of 60 ℃, dropwise adding tetraethyl orthosilicate with the mass of 0.5 time of the carrier at the speed of 1d/s, preserving heat, continuously stirring and reacting for 1h, dropwise adding an ammonia water solution with the mass of 25 wt% of tetraethyl orthosilicate at the speed of 1d/s, continuously stirring and reacting for 24h, filtering after the reaction is finished, washing precipitates with the absolute ethyl alcohol, taking out the carrier, and obtaining the temperature adjusting layer.
Preparation of thermo jug
S1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clear water, cleaning the product, putting the product into a water expansion machine, and adjusting the pressure to 13MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
s8, polishing the outer surface of the prepared inner container, then coating a temperature-adjusting layer, carrying out corona treatment for 12min under the conditions that the temperature is 35 ℃, the air relative humidity is 20% and the electric field strength is 320kv/m, then coating heat-conducting silica gel with the thickness of 0.2mm, pressurizing to 0.15MPa at the temperature of 40 ℃, keeping for 30min, pressurizing to 0.2MPa, keeping for 1.5h for curing;
and S9, the inner container and the shell which are prepared in the step S8 are connected together through welding, then the base is welded, and the light-weight heat preservation pot is obtained after vacuumizing.
EXAMPLE III
Preparation of modified carbon fiber
Preparing concentrated nitric acid and concentrated sulfuric acid according to a volume ratio of 3:1 to form a mixed acid solution, soaking carbon fibers in an acetone solution, performing ultrasonic dispersion for 30min, performing reflux reaction at 65 ℃ for 3h, filtering after the reaction is finished, washing with deionized water until the washing liquid is neutral, drying, placing in the mixed acid solution, performing heat preservation and reflux reaction at 60 ℃ for 6h, filtering after the reaction is finished, washing with deionized water until the washing liquid is neutral, drying, treating with oxygen as a working gas, and performing plasma treatment for 3min for later use under the condition that the power is 150W.
Stirring and dispersing the pretreated carbon fiber in 70 wt% ethanol solution 6 times of the mass of the carbon fiber, adding 20% sodium hydroxide solution to adjust the pH value to 8.5, adding 3-mercaptopropyltrimethoxysilane 0.1 time of the mass of the carbon fiber, magnetically stirring for 20min, adding alkenyl succinic anhydride 0.25 time of the mass of the carbon fiber, carrying out heat preservation reaction at 80 ℃ for 1h, cooling to room temperature, filtering, washing and drying to obtain the modified carbon fiber.
The temperature control layer was prepared as in example one.
Preparation of thermo jug
S1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clear water, cleaning the product, putting the product into a water expansion machine, and adjusting the pressure to 12MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
s8, polishing the outer surface of the prepared inner container, then coating a temperature-adjusting layer, carrying out corona treatment for 10min under the conditions that the temperature is 35 ℃, the air relative humidity is 20% and the electric field strength is 320kv/m, then coating heat-conducting silica gel with the thickness of 0.15mm, pressurizing to 0.15MPa at the temperature of 40 ℃, keeping for 30min, pressurizing to 0.2MPa, keeping for 1.5h for curing;
and S9, the inner container and the shell which are prepared in the step S8 are connected together through welding, then the base is welded, and the light-weight heat preservation pot is obtained after vacuumizing.
Example four
This example does not use a temperature control layer
S1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clear water, cleaning the product, putting the product into a water expansion machine, and adjusting the pressure to 12MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
and S8, the inner container and the shell which are prepared in the step S7 are connected together through welding, then the base is welded, and the light-weight heat preservation kettle is obtained through vacuumizing.
Two conventional vacuum thermos pots with the same volume are purchased from the market and respectively used as a first comparative example and a second comparative example, and a comparative experiment is carried out on the thermos pots prepared in the first embodiment and the second embodiment of the invention.
Experiment one: when the heat preservation cup is dry, the quality of the heat preservation cup is measured, then 1L of water with the temperature of 100 ℃ is injected into the heat preservation cup, temperature test is carried out every 1min, and the temperature is continuously monitored for 5 min.
Experiment two: the temperature of the water at the inlet is 40-50 ℃, so that the timing is started when the temperature of the water in the thermos bottle is reduced to 50 +/-2 ℃ and is ended when the temperature is reduced to 40 +/-2 ℃.
The test results are shown in the following table:
| testing performance | Example one | Example two | EXAMPLE III | Example four | Comparative example 1 | Comparative example No. two |
| mass/Kg | 0.62 | 0.62 | 0.60 | 0.56 | 0.95 | 0.93 |
| 1min temperature/. degree.C | 81.9 | 80.5 | 82.3 | 99.5 | 99.6 | 99.5 |
| 2min temperature/. degree.C | 74.6 | 73.1 | 75.4 | 99.0 | 99.2 | 98.9 |
| Temperature for 3min/℃ | 63.4 | 62.7 | 64.9 | 98.1 | 98.3 | 97.8 |
| 4min temperature/. degree.C | 58.5 | 57.2 | 59.3 | 97.4 | 97.8 | 97.1 |
| 5min temperature/. degree.C | 53.7 | 52.4 | 54.6 | 96.5 | 96.8 | 96.2 |
| Maintenance time/h | 8 | 8 | 8 | 2 | 2 | 2 |
As can be seen from the above table, the quality of the light thermos bottle prepared by the invention is far lower than that of the thermos bottle on the existing market, and even the thermos bottle with the temperature adjusting layer is added, the quality of the thermos bottle is far lower than that of the thermos bottle on the existing market; and the falling time of the temperature of the water in the thermos bottle is greatly shortened by adding the temperature adjusting layer, so that a user can drink water suitable for the inlet more quickly, and the water in the thermos bottle can be maintained at the temperature suitable for the human body inlet for a longer time.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The light-weight thermos flask is characterized by comprising a shell and an inner container, wherein the inner container is processed and formed by adopting a rotary thinning technology, the outer surface of the inner container is fixedly wrapped with a temperature regulating layer, the temperature regulating layer is formed by weaving modified carbon fibers to form a net structure as a carrier and loading temperature regulating microcapsules on the carrier.
2. The lightweight thermos flask of claim 1, wherein the modified carbon fiber is obtained by pretreating carbon fiber and then modifying the carbon fiber by grafting alkenyl succinic anhydride.
3. The lightweight thermos flask according to claim 2, wherein the temperature-adjusting microcapsule comprises silica as a shell and octadecanol/butyl stearate compound as a core.
4. A lightweight thermo jug according to claim 3, characterised in that the mass ratio of octadecanol to butyl stearate in the octadecanol/butyl stearate complex is 4: 1.
5. The method of any one of claims 1 to 4, wherein the method comprises the steps of:
s1, preparing a shell by a hydraulic expansion technology;
s2, taking a liner raw material pipe, and carrying out pipe flattening treatment by using an instrument vehicle;
s3, putting the product prepared in the step S2 into clear water, cleaning the product, and then putting the product into a water expansion machine, and adjusting the pressure to 12-14MPa to finish water expansion;
s4, necking the upper part of the liner raw material pipe after the water expansion is finished by the air compressor;
s5, performing spinning thinning treatment on the liner raw material pipe subjected to necking treatment by using a spinning thinning machine;
s6, performing corner rolling treatment on the convex corner of the liner raw material pipe subjected to spinning thinning treatment by using a lathe;
s7, cutting off the redundant part at the upper necking part, and rolling threads by using a thread rolling machine to obtain the inner container;
s8, polishing the outer surface of the prepared inner container, then coating a temperature-adjusting layer, performing corona treatment for 10-15min, then coating heat-conducting silica gel with the thickness of 0.1-0.2mm, pressurizing to 0.15MPa at the temperature of 40 ℃, keeping for 30min, pressurizing to 0.2MPa, keeping for 1.5h and curing;
and S7, the inner container and the shell which are prepared in the step S8 are connected together through welding, then the base is welded, and the light-weight heat preservation pot is obtained after vacuumizing.
6. The method for manufacturing a lightweight thermos bottle according to claim 5, wherein the method for manufacturing the temperature-adjusting layer comprises:
preparing a carrier: aggregating the modified carbon fibers into fiber bundles with the diameter of 0.1-0.3mm, and weaving the fiber bundles into a net to obtain a carrier;
loading: according to the proportion, octadecanol and butyl stearate are respectively taken, magnetic stirring is carried out for 1 hour under the condition of a constant-temperature water bath at the temperature of 60 ℃, the capsule core raw material is obtained after cooling to the room temperature, the capsule core raw material and hexadecyl trimethyl ammonium bromide are respectively weighed according to the mass ratio of 4:3 and are placed in a reaction kettle, absolute ethyl alcohol with the mass being fifty times that of the capsule core raw material is added, n-amyl alcohol is added, after stirring and mixing are carried out uniformly, a carrier is added, ultrasonic dispersion is carried out for 1.5 hours under the condition of 60 ℃, tetraethyl orthosilicate is dropwise added at the speed of 1-2d/s, heat preservation is carried out, stirring and reaction is carried out for 1 hour continuously, 25 wt% of ammonia water solution is dropwise added at the speed of 1d/s, stirring and reaction are carried out for 24 hours continuously, after the reaction is finished, filtration is carried out.
7. The method of claim 6, wherein the modified carbon fiber is prepared by: stirring and dispersing the pretreated carbon fiber in 70 wt% ethanol solution, adding 20% sodium hydroxide solution to adjust the pH value to 8.5, adding 3-mercaptopropyltrimethoxysilane, magnetically stirring for 20min, adding alkenyl succinic anhydride, reacting at 80 ℃ for 1h at a constant temperature, cooling to room temperature, filtering, washing and drying to obtain the modified carbon fiber.
8. The method of claim 7, wherein the pre-treatment comprises: soaking carbon fibers in an acetone solution, performing ultrasonic dispersion for 30min, performing reflux reaction at 65 ℃ for 3h, filtering after the reaction is finished, washing with deionized water, drying, placing in a mixed acid solution, performing heat preservation and reflux reaction at 60 ℃ for 6h, filtering after the reaction is finished, washing with deionized water until a washing solution is neutral, drying, and performing plasma treatment.
9. The method for preparing a lightweight thermos according to claim 8, wherein the mixed acid solution is a mixed solution of concentrated nitric acid and concentrated sulfuric acid, and the volume ratio of the concentrated nitric acid to the concentrated sulfuric acid is 3: 1.
10. The method as claimed in claim 9, wherein the plasma treatment is performed with oxygen as a working gas at power of 120-.
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