CN111485428A - Heat-storage temperature-regulating textile and preparation method thereof - Google Patents
Heat-storage temperature-regulating textile and preparation method thereof Download PDFInfo
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- CN111485428A CN111485428A CN201910072864.7A CN201910072864A CN111485428A CN 111485428 A CN111485428 A CN 111485428A CN 201910072864 A CN201910072864 A CN 201910072864A CN 111485428 A CN111485428 A CN 111485428A
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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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
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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
- D06M11/77—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 silicon or compounds thereof
- D06M11/79—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 silicon or compounds thereof with silicon dioxide, silicic acids 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
- 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
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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
- D06M13/10—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
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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
- D06M13/50—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
- D06M13/5135—Unsaturated compounds containing silicon 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/20—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin
- D06M14/22—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin of vegetal origin, e.g. cellulose or derivatives thereof
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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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/20—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin
- D06M14/24—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin of animal origin, e.g. wool or silk
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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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/26—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin
- D06M14/30—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/32—Polyesters
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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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/26—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin
- D06M14/30—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/34—Polyamides
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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
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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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
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
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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
- D06M2101/32—Polyesters
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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
- D06M2101/34—Polyamides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a heat-storage temperature-regulating textile and a preparation method thereof, wherein the heat-storage temperature-regulating textile is prepared by coating a mixture consisting of modified phase-change microcapsules, an organic monomer dispersion medium and an initiator on the surface of a textile substrate to form a coating, wherein the modified phase-change microcapsules take silicon dioxide as a shell layer, and the phase-change microcapsules taking a phase-change material as a core material are modified by a silane coupling agent. The heat-storage temperature-regulating textile overcomes the problem of poor firmness between the phase-change microcapsules and the textile substrate, has the advantages of good washing fastness, high latent heat, uniform temperature regulation and the like, and has the characteristics of low requirement on equipment, easy control of reaction process, simple operation, quick forming and the like.
Description
Technical Field
The invention belongs to the technical field of functional textile preparation, particularly relates to an intelligent textile, and more particularly relates to a heat storage and temperature adjustment textile and a preparation method thereof.
Background
With the progress of human society and the increasing improvement of living standard, people favor intelligent textiles with some special functions. The heat storage and temperature adjustment textile is a novel intelligent textile which can release energy when the ambient temperature is low, absorbs heat after the ambient temperature is high, has the function of bidirectional temperature adjustment, can automatically absorb, store, distribute and release energy, and arouses close attention of textile dyeing and finishing workers. At present, the heat storage and temperature adjustment textile has great application prospect in the fields of military, clothing, bedding, medical supplies and the like.
The heat-storage temperature-regulating textile can be prepared by applying microencapsulated phase-change materials on a textile substrate, and has been widely reported in recent years, such as heat-storage temperature-regulating textiles respectively disclosed in chinese patent CN201611109749.5, chinese patent CN200710057493.2 and chinese patent cn201410407505. Generally, the application mode of the phase-change microcapsule in the textile is mainly a spinning method and a post-finishing method. The spinning method is to spin the phase-change microcapsules as the components of the spinning solution, has strict requirements on the particle size, acid and alkali resistance and heat resistance of the phase-change microcapsules, has various operation procedures and has higher requirements on equipment; the post-finishing method is to treat the phase-change microcapsule as a finishing liquid component on the surface of the textile by means of dipping, padding or coating, has simple operation and low requirement on equipment, is a common method for preparing the phase-change microcapsule heat-storage temperature-regulating textile at present, and is an intelligent temperature-regulating textile prepared by mixing a prepared phase-change microcapsule material with an adhesive and then coating the mixture on the surface of a textile fabric, for example, Chinese invention patent CN 200710057493.2.
However, when the phase-change microcapsules are treated on the textile by adopting a post-finishing method, the bonding strength between the phase-change microcapsules and the textile substrate is often weak, and the phase-change microcapsules are easy to fall off, so that the practical application of the phase-change microcapsule heat-storage temperature-regulating textile is greatly limited. Therefore, the heat-storage temperature-regulating textile with good bonding fastness of the phase-change microcapsules and the substrate is in the need.
Disclosure of Invention
The invention discovers that a phase change microcapsule which takes silicon dioxide as a shell layer and a phase change material as a core material is modified to be a reaction type modified phase change microcapsule with double bonds on the surface, the mixture of the obtained modified phase change microcapsule, an organic monomer dispersion medium and an initiator is coated on the surface of a textile substrate, and a heat storage and temperature regulation textile with good bonding fastness and stability can be obtained after curing treatment, so that the purpose of forming stable bonding between the phase change microcapsule and the textile substrate is realized.
The first purpose of the invention is to provide a heat-storage temperature-regulating textile.
Preferably, the heat-storage and temperature-regulation textile is prepared by coating a mixture consisting of modified phase-change microcapsules, an organic monomer dispersion medium and an initiator on the surface of a textile substrate to form a coating, wherein the modified phase-change microcapsules are prepared by taking silicon dioxide as a shell layer and phase-change microcapsules taking a phase-change material as a core material through modification by a silane coupling agent.
The preparation method of the phase-change microcapsule taking silicon dioxide as a shell layer and phase-change material as a core material and the modification method of the phase-change microcapsule by using the silane coupling agent are not particularly limited, and the phase-change microcapsule can be prepared and modified by adopting a mode well known by the technical personnel in the field.
The coating method and the equipment for performing the coating are not particularly limited, and the coating method and the coating equipment known to those skilled in the art can be used, for example, a knife coater is used for performing the coating.
Preferably, the composition of the mixed solution is 100 parts of organic monomer dispersion medium, 5-15 parts of modified phase-change microcapsule emulsion and 0.5-1 part of initiator.
Preferably, the phase-change material is any one of paraffin, fatty acid and fatty alcohol, or a mixture eutectic of any two or more of the paraffin, the fatty acid and the fatty alcohol, wherein the phase-change temperature of the phase-change material is 22-40 ℃.
Preferably, the organic monomer dispersion medium is any one of hydroxyethyl acrylate and hydroxypropyl acrylate.
Preferably, the silane coupling agent is any one of gamma- (methacryloyloxy) propyltrimethoxysilane, vinyltrimethoxysilane, triethoxyvinyl and vinyltris (b-methoxyethoxy) silane.
One end of the silane coupling agent is provided with a reactive double bond, the other end of the silane coupling agent is a silicon-oxygen bond, silanol formed by hydrolysis of methoxyl of the silane coupling agent can generate a dehydration reaction with silicon hydroxyl of silicon dioxide to generate a Si-O-Si bond, and the Si-O-Si bond is connected to the surface of the silicon dioxide, so that the phase change microcapsule taking the silicon dioxide as a shell layer is modified into the reactive phase change microcapsule. The active double bond at the other end of the reactive phase change microcapsule and an organic monomer are subjected to polymerization reaction under the catalysis of an initiator, so that the textile substrate is taken as an in-situ point to be solidified and formed into a film on the surface of the textile substrate.
Preferably, the initiator is a photoinitiator, including a uv initiator or a blue light initiator.
Preferably, the uv initiator is any one of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, 2-hydroxy-2-methyl-1-phenyl-1-propanone and azobisisobutyronitrile.
Preferably, the blue light initiator is any one of 1-phenyl-1, 2-propanedione and ethyl 4- (dimethylamino) benzoate.
When the initiator is a photoinitiator, the photoinitiator is cured to form a film by adopting a photo-fixation technology, and the specific principle is that the photoinitiator absorbs ultraviolet light or visible light radiation energy to initiate the polymerization of monomers in the mixed solution and quickly form a cured film layer.
It is understood that the initiator of the present invention may be a thermal initiator, and when the initiator is a thermal initiator, a thermal fixing technique is used to cure the initiator into a film, and a common thermal fixing technique such as oven drying is used.
The invention adopts the photoinitiator and the light curing mode as the preferable mode, and the mixed solution coated on the surface of the textile substrate can be changed from the liquid state to the solid state within a few minutes by adopting the preferable mode, thereby effectively solving the defects of slow film forming and low efficiency of the heat fixing mode.
Preferably, the textile substrate is any one of cotton, real silk, terylene, polyester cotton, modal, tencel fabric, polypropylene non-woven fabric and polyester non-woven fabric.
The second purpose of the invention is to provide a preparation method of the heat-storage temperature-regulating textile.
Preferably, the preparation method of the heat storage and temperature adjustment textile comprises the following steps:
(1) preparing a modified phase-change microcapsule: ultrasonically dispersing phase change microcapsule emulsion taking silicon dioxide as a shell layer and phase change material as a core material for 15min, adding a prehydrolyzed silane coupling agent accounting for 10-15% of the mass fraction of the phase change microcapsule emulsion, placing the obtained mixed solution in a reaction kettle at the temperature of 70-80 ℃, reacting for 3-6 h at the stirring speed of 200-300 r/min, discharging and filtering to obtain the modified phase change microcapsule;
(2) preparing a heat storage and temperature adjustment textile: and ultrasonically dispersing a mixed solution consisting of an organic monomer dispersion medium, a modified phase-change microcapsule emulsion and an initiator for 15min, coating the mixed solution on the surface of a textile substrate, and curing to obtain the heat-storage temperature-regulating textile.
Preferably, the composition of the mixed solution is 100 parts of organic monomer dispersion medium, 5-15 parts of modified phase-change microcapsule emulsion and 0.5-1 part of initiator.
Preferably, the initiator in the step (2) is a photoinitiator, and the curing treatment is performed for 1-5 min under the irradiation of a light source.
Preferably, the light source is an ultraviolet high-pressure mercury lamp with a power of 250W and a central wavelength at 365nm or a blue L ED lamp with a power of 200W and a central wavelength at 425 nm.
Preferably, the phase-change material is any one of paraffin, fatty acid and fatty alcohol, or a mixture eutectic of any two or more of the paraffin, the fatty acid and the fatty alcohol, wherein the phase-change temperature of the phase-change material is 22-40 ℃.
Preferably, the organic monomer dispersion medium is any one of hydroxyethyl acrylate and hydroxypropyl acrylate.
Preferably, the silane coupling agent is any one of gamma- (methacryloyloxy) propyltrimethoxysilane, vinyltrimethoxysilane, triethoxyvinyl and vinyltris (b-methoxyethoxy) silane.
Preferably, the initiator is a photoinitiator, including a uv initiator or a blue light initiator.
Preferably, the ultraviolet light initiator is any one of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, 2-hydroxy-2-methyl-1-phenyl-1-propanone and azobisisobutyronitrile.
Preferably, the blue light initiator is any one of 1-phenyl-1, 2-propanedione and ethyl 4- (dimethylamino) benzoate.
Preferably, the textile substrate is any one of cotton, real silk, terylene, polyester cotton, modal, tencel fabric, polypropylene non-woven fabric and polyester non-woven fabric.
The beneficial results are as follows:
(1) the invention utilizes silane coupling agent to modify phase change microcapsule taking silicon dioxide as shell layer to obtain modified phase change microcapsule with active double bond on surface, the mixture composed of modified phase change microcapsule, organic monomer dispersion medium and initiator is coated on the surface of textile substrate, the initiator catalyzes the modified phase change microcapsule and the organic monomer to carry out polymerization reaction, thereby forming phase change microcapsule solidified film layer on the surface of the textile substrate to obtain textile with heat storage and temperature regulation properties.
(2) The invention adopts the photoinitiator and the light fixing mode to solidify the phase-change microcapsule on the surface of the textile substrate to form a film, and has the advantages of high film forming speed, low equipment requirement, easy control of reaction process, simple operation, environmental protection, good universality and the like.
The raw materials for preparing the heat-storage temperature-regulating textile have the following functions:
1. phase change microcapsules
The phase-change microcapsule is a composite phase-change material with a core-shell structure formed by coating a layer of film with stable performance on the surface of phase-change material particles by utilizing a microcapsule technology, so that the environment of the phase-change material forming a core material is more stable and is not influenced by external environmental factors. After the phase-change microcapsules are arranged on a textile base material, the phase-change material serving as a core material is subjected to liquid-solid reversible change along with the change of the external environment temperature, namely, the phase-change material absorbs and stores heat when the environment temperature rises and is changed from a solid state to a liquid state; when the ambient temperature is reduced, the stored heat is released, and the stored heat is changed from a liquid state to a solid state, so that the temperature self-regulation of the textile is realized. The phase change microcapsules with the silicon dioxide as the shell layer have the advantages of good thermal conductivity and no negative influence on the appearance of the fabric due to oil immersion when heat absorption melting occurs, but have the defect of poor bonding fastness with the fabric.
In the invention, the inventor utilizes a silane coupling agent to modify a phase change microcapsule taking silicon dioxide as a shell layer, and the main principle is as follows: one end of the silane coupling agent is a reactive double bond, the other end of the silane coupling agent is a silicon-oxygen bond, silanol formed by hydrolysis of methoxy groups of the silane coupling agent can generate a dehydration reaction with silicon hydroxyl of silicon dioxide to generate a Si-O-Si bond, and the Si-O-Si bond is connected to the surface of the silicon dioxide, so that the phase change microcapsule taking the silicon dioxide as a shell layer is modified into a reactive phase change microcapsule with the reactive double bond. The active double bonds on the surface of the modified phase-change microcapsule can be subjected to polymerization reaction with organic monomers, so that a stable film layer can be formed on the surface of a textile substrate, and the bonding fastness of the phase-change microcapsule and the textile substrate is enhanced.
2. Organic monomer dispersion medium
The organic monomer dispersion medium is the main substance in the polymerization system, and the organic monomer dispersion medium and the modified phase-change microcapsule belong to the reactants in the polymerization system, and can be polymerized in situ on a textile substrate to form a film with strong adhesiveness. Hydroxyethyl acrylate and hydroxypropyl acrylate are two common organic monomers, the polymerization performance is good, and the obtained film is transparent and has better flexibility; in addition, the molecular structures of the hydroxyethyl acrylate and the hydroxypropyl acrylate also have hydroxyl groups capable of forming hydrogen bonding action, so that the adhesion between the obtained film and a textile substrate is further enhanced.
3. Initiator
The initiator plays a role in catalyzing polymerization reaction in a polymerization system, and common initiators include thermal initiators and photoinitiators. Among them, thermal initiators generate radicals by thermal cracking to initiate polymerization, and widely used thermal initiators include peroxides and azo compounds; the photoinitiator absorbs photon energy to generate free radicals to initiate polymerization after being irradiated by light, and widely used photoinitiators comprise ultraviolet initiators and blue light initiators. In the invention, both the thermal initiator and the photoinitiator are suitable for preparing the heat-storage and temperature-regulation textile. In a preferred embodiment, a photoinitiator is used for catalyzing the polymerization of the phase-change microcapsule and the organic monomer, and a phase-change microcapsule film layer is rapidly formed on a textile substrate through a photocuring mode, so that the defects of low film-forming efficiency, difficulty in controlling a film-forming process and the like in a thermocuring mode are overcome.
Drawings
Fig. 1 is a scanning electron microscope (FESEM) image of the phase-change microcapsule prepared in example 1 of the present invention.
Fig. 2 is a scanning electron microscope (FESEM) image of the heat-accumulative temperature-regulating cotton fabric of example 1 of the present invention under 1000 x magnification.
Fig. 3 is a Differential Scanning Calorimeter (DSC) curve of the phase change microcapsule heat storage and temperature regulation cotton fabric prepared in example 1 of the present invention.
Detailed Description
The present invention will be described in more detail with reference to examples. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the invention, all parts and percentages are weight units, and all equipment, raw materials and the like can be purchased from the market or are commonly used in the industry, if not specified. Unless otherwise indicated, the examples employ methods that are within the ordinary skill in the art.
The surface appearance and heat storage performance of the phase change microcapsules and the heat storage temperature regulation textile are tested by using the following equipment, wherein the surface appearance of the dried and gold-sprayed phase change microcapsules and the heat storage temperature regulation textile is observed by using a U L TRA55 type scanning electron microscope of Zeiss company, Germany, a Q2000 Differential Scanning Calorimeter (DSC) of TA company, America is adopted, the temperature is increased to 50 ℃ from minus 10 ℃ at the speed of 10 ℃/min under the protection of nitrogen, the temperature is reduced to minus 10 ℃ after heat preservation is carried out for 1 minute, the DSC curve in the testing process is recorded, and the phase change temperature and the latent heat value of the phase change microcapsules and the heat storage temperature regulation textile are calculated and obtained.
Example 1
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: taking paraffin as a phase change core material, SDS as an emulsifier and water as a dispersion medium, starting high-speed emulsification for 30min, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant-temperature reaction condition at 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: taking 100g of phase-change microcapsule emulsion taking silicon dioxide as a shell layer and paraffin as a core material, carrying out ultrasonic dispersion for 15min, then adding 10g of gamma- (methacryloyloxy) propyl trimethoxy silane which is subjected to ultrasonic prehydrolysis for 15min in 40 parts of water, placing the mixed solution in a reaction kettle at the temperature of 70 ℃, setting the stirring speed of 200r/min, discharging after reacting for 3h, and filtering to obtain the modified phase-change microcapsule emulsion for later use.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of pure cotton fabric, 100g of hydroxyethyl acrylate dispersion medium, 5g of modified phase-change microcapsule emulsion, 0.5g of ultraviolet photoinitiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
(4) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the ultraviolet initiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide for 15min, then applying the mixed solution to the surface of a pure cotton fabric, clamping the cotton fabric applied with the reaction liquid by two transparent glass plates from top to bottom, irradiating the cotton fabric under a 250W ultraviolet high-pressure mercury lamp for 1min, and taking out the treated cotton fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
And (3) performing water washing test on the obtained phase change microcapsule heat storage and temperature adjustment textile, and representing the adhesion of the phase change microcapsule on the textile by testing the weight and latent heat value change conditions of the heat storage and temperature adjustment textile before and after water washing. And (3) soaking and washing the phase-change microcapsule heat-storage temperature-regulating textile in warm water at 45 ℃, taking out the textile after specified soaking for 2min, wringing the textile to wash for 1 time, repeating the steps of 10 times and 20 times of washing, and then respectively weighing and testing by a differential scanning calorimeter.
Fig. 1 is a scanning electron microscope (FESEM) image of the prepared phase-change microcapsules, which was found to have a smooth surface; FIG. 2 is a scanning electron microscope (FESEM) image of a heat-storing and temperature-adjusting cotton fabric, and it is found that microcapsules are obviously adhered to the cotton fabric; fig. 3 is a Differential Scanning Calorimeter (DSC) curve of the phase change microcapsule heat storage and temperature regulation cotton fabric prepared in example 1 of the present invention. The detection shows that the latent heat value of the phase change is 110J/g, the weight gain of the heat storage and temperature regulation cotton fabric is 28.5%, the melting phase change temperature is 27.8 ℃, the latent heat of the phase change is 30.4J/g, and the reaction type phase change microcapsules are obviously attached to the cotton fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat-storage temperature-regulating cotton fabric is increased by 28.1%, and the latent heat of phase change is 30.1J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 2
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: and starting high-speed emulsification for 30min by using tetradecanol as a phase-change core material, CTAB as an emulsifier and water as a dispersion medium, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant-temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, and taking out of the reaction flask after stirring for 24h to obtain the phase-change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of vinyl trimethoxy silane subjected to ultrasonic prehydrolysis in 40 parts of water for 20min, placing the mixed solution in a reaction kettle at the temperature of 80 ℃, setting the stirring speed of 400r/min, reacting for 5h, discharging and filtering to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm (length and width) of polyester fabric, 100g of hydroxyethyl acrylate dispersion medium, 15g of modified phase-change microcapsule emulsion and 1g of ultraviolet initiator 2-hydroxy-2-methyl-1-phenyl-1-acetone.
(4) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the ultraviolet initiator 2-hydroxy-2-methyl-1-phenyl-1-acetone for 15min, then applying the mixed solution to the surface of polyester fabric, clamping the polyester fabric applied with the reaction solution by two transparent glass plates from top to bottom, irradiating the polyester fabric under a 250W ultraviolet high-pressure mercury lamp for 1.5min, and taking out the treated cotton fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 2 was subjected to a water washing test in the same manner as in example 1.
The detection shows that the obtained phase-change microcapsule has a smooth surface, the phase-change latent heat value is 70J/g, the weight of the heat-storage temperature-adjusting polyester fabric is increased by 20.8%, the melting phase-change temperature is 38.6 ℃, the phase-change latent heat is 14.3J/g, and the reaction type phase-change microcapsule is obviously attached to the polyester fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat-storage and temperature-adjustment polyester fabric is increased by 20.1%, and the latent heat of phase change is 13.9J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 3
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: starting high-speed emulsification for 30min by using dodecanol as a phase-change core material, CTAB as an emulsifier and water as a dispersion medium, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant-temperature reaction condition at 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase-change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of gamma- (methacryloyloxy) propyl trimethoxy silane subjected to ultrasonic prehydrolysis for 20min in 40 parts of water, placing the mixed solution in a reaction kettle at the temperature of 80 ℃, setting the stirring speed at 350r/min, reacting for 3h, discharging and filtering to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of real silk fabric, 100g of hydroxyethyl acrylate dispersion medium, 5g of modified phase-change microcapsule emulsion and 0.5g of ultraviolet initiator azobisisobutyronitrile.
(4) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the ultraviolet initiator azobisisobutyronitrile for 15min, then applying the mixed solution to the surface of real silk fabric, vertically clamping the real silk fabric applied with the reaction solution by two transparent glass plates, irradiating the real silk fabric for 1min under a 250W ultraviolet high-pressure mercury lamp, and taking out the processed real silk fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 3 was subjected to a water washing test in the same manner as in example 1.
The detection shows that the obtained phase-change microcapsule has a smooth surface, the phase-change latent heat value is 70J/g, the weight of the heat-storage temperature-adjusting real silk fabric is increased by 24.9%, the melting phase-change temperature is 22.6 ℃, the phase-change latent heat is 17.1J/g, and the reaction type phase-change microcapsule is obviously attached to the real silk fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat-storage temperature-regulating real silk fabric is increased by 24.1%, and the latent heat of phase change is 16.7J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 4
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: and starting high-speed emulsification for 30min by using tetradecanol as a phase-change core material, CTAB as an emulsifier and water as a dispersion medium, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant-temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, and taking out of the reaction flask after stirring for 24h to obtain the phase-change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 15g of triethoxy vinyl which is subjected to ultrasonic prehydrolysis in 40 parts of water for 25min, placing the mixed solution in a reaction kettle at the temperature of 75 ℃, setting the stirring speed of 350r/min, reacting for 4h, discharging and filtering to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of nylon fabric, 100g of hydroxypropyl acrylate dispersion medium, 12g of modified phase-change microcapsule emulsion, and 0.75g of blue light initiator camphorquinone.
(4) The preparation method of the heat storage and temperature regulation textile comprises the steps of ultrasonically dispersing a mixed solution consisting of the hydroxypropyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the blue light initiator camphorquinone for 15min, applying the mixed solution to the surface of nylon fabric, vertically clamping the nylon fabric applied with the reaction solution by two transparent glass plates, irradiating for 5min under a blue light L ED lamp of 200W, and taking out the treated nylon fabric, namely the phase-change microcapsule heat storage and temperature regulation textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 4 was subjected to a water washing test in the same manner as in example 1.
Through detection, the obtained phase-change microcapsule has a smooth surface, the phase-change latent heat value is 85J/g, the weight of the heat-storage temperature-adjusting nylon fabric is increased by 19.7%, the melting phase-change temperature is 38.9 ℃, the phase-change latent heat is 16.1J/g, and after blue light curing, the reaction type phase-change microcapsule is obviously attached to the nylon fabric. After 10 times of washing, the weight of the heat-storage and temperature-adjustment polyamide fabric is increased by 19.2%, and the latent heat of phase change is 16.0J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 5
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: taking a eutectic of a mixture of monthly silicic acid and stearic acid as a phase change core material, CTAB as an emulsifier and water as a dispersion medium, starting high-speed emulsification for 30min, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of vinyl tri (b-methoxyethoxy) silane subjected to ultrasonic prehydrolysis in 40 parts of water for 25min, placing the mixed solution in a reaction kettle at the temperature of 75 ℃, setting the stirring speed of 350r/min, and discharging and filtering after reacting for 4h to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of polyester-cotton fabric, 100g of hydroxyethyl acrylate dispersion medium, 12g of modified phase-change microcapsule emulsion, and 0.8g of ultraviolet initiator azobisisobutyronitrile.
(4) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the ultraviolet initiator azobisisobutyronitrile for 15min, then applying the mixed solution to the surface of the polyester-cotton fabric, vertically clamping the real silk fabric applied with the reaction solution by two transparent glass plates, irradiating the real silk fabric under a high-pressure ultraviolet mercury lamp of 250W for 2min, and taking out the treated polyester-cotton fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 5 was subjected to a water washing test in the same manner as in example 1.
The detection shows that the obtained phase-change microcapsule has a smooth surface, the phase-change latent heat value is 60J/g, the weight of the heat-storage temperature-adjusting polyester-cotton fabric is increased by 21.6%, the melting phase-change temperature is 33.6 ℃, the phase-change latent heat is 12.2J/g, and the reaction type phase-change microcapsule is obviously attached to the polyester-cotton fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat-storage and temperature-adjustment polyester-cotton fabric is increased by 21.2%, and the latent heat of phase change is 12.1J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 6
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: taking a eutectic body of mixture of monthly silicic acid, stearic acid and palmitic acid as a phase change core material, CTAB as an emulsifier and water as a dispersion medium, starting high-speed emulsification for 30min, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting the constant-temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting the stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of vinyl tri (b-methoxyethoxy) silane subjected to ultrasonic prehydrolysis in 40 parts of water for 20min, placing the mixed solution in a reaction kettle at the temperature of 75 ℃, setting the stirring speed of 350r/min, and discharging and filtering after 5h of reaction to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of the hemp blended fabric, 100g of hydroxypropyl acrylate dispersion medium, 5g of modified phase change microcapsule emulsion, 0.5g of ultraviolet initiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
(4) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxypropyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the ultraviolet initiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide for 15min, applying the mixed solution to the surface of a linen fabric, clamping the linen fabric applied with the reaction liquid by two transparent glass plates up and down, irradiating the linen fabric under a 250W ultraviolet high-pressure mercury lamp for 1min, and taking out the treated linen fabric, namely the phase-change microcapsule heat-storage temperature-regulation textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 6 was subjected to a water washing test in the same manner as in example 1.
The detection shows that the obtained phase-change microcapsule has a smooth surface, the phase-change latent heat value is 60J/g, the weight of the heat-storage temperature-adjusting hemp fabric is increased by 17.9%, the melting phase-change temperature is 32.7 ℃, the phase-change latent heat is 10.1J/g, and the reaction type phase-change microcapsule is obviously attached to the hemp fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat storage and temperature adjustment linen fabric is increased by 17.5%, and the latent heat of phase change is 9.9J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 7
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: taking paraffin as a phase change core material, CTAB as an emulsifier and water as a dispersion medium, starting high-speed emulsification for 30min, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of gamma- (methacryloyloxy) propyl trimethoxy silane subjected to ultrasonic prehydrolysis for 15min in 40 parts of water, placing the mixed solution in a reaction kettle at the temperature of 75 ℃, setting the stirring speed of 200r/min, and discharging and filtering after 5h of reaction to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of tencel fabric, 100g of hydroxyethyl acrylate dispersion medium, 10g of modified phase change microcapsule emulsion, 0.5g of blue light initiator ethyl 4-dimethylaminobenzoate.
(4) The preparation of the heat-storage temperature-regulating textile comprises the steps of ultrasonically dispersing a mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the blue light initiator 4-ethyl dimethylaminobenzoate for 15min, then applying the mixed solution to the surface of a tencel fabric, clamping the real silk fabric applied with the reaction solution by two transparent glass plates from top to bottom, irradiating the real silk fabric under a blue light L ED lamp of 200W for 4.5min, and taking out the treated tencel fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 7 was subjected to a water washing test in the same manner as in example 1.
Through detection, the obtained phase change microcapsule has a smooth surface, the phase change latent heat value is 99.8J/g, the weight of the fabric for storing heat and adjusting temperature is 15.6%, the melting phase change temperature is 28.9 ℃, the phase change latent heat is 14.7J/g, and after blue light curing, the reaction type phase change microcapsule is obviously attached to the fabric for storing heat and adjusting temperature. After 10 times of washing, the weight of the fabric with the heat storage and temperature adjustment tencel is increased by 15.2%, and the latent heat of phase change is 14.5J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Example 8
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: taking paraffin as a phase change core material, CTAB as an emulsifier and water as a dispersion medium, starting high-speed emulsification for 30min, taking out and pouring into a 500ml three-neck flask, then adding ammonia water, setting a constant temperature reaction condition of 40 ℃, then adding tetraethoxysilane and ethanol into the reaction flask, setting a stirring speed of 260r/min, taking out after stirring for 24h, and obtaining the phase change microcapsule taking silicon dioxide as a shell layer.
(2) Modification of the phase-change microcapsule: and (2) carrying out ultrasonic dispersion on 100g of the prepared nano phase change microcapsule emulsion for 15min, then adding 10g of gamma- (methacryloyloxy) propyl trimethoxy silane subjected to ultrasonic prehydrolysis for 20min in 40 parts of water, placing the mixed solution in a reaction kettle at the temperature of 75 ℃, setting the stirring speed of 200r/min, and discharging and filtering after 5h of reaction to obtain the modified phase change microcapsule emulsion.
(3) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of modal fabric, 100g of hydroxyethyl acrylate dispersion medium, 10g of modified phase change microcapsule emulsion, 0.5g of blue light initiator camphorquinone.
(4) The preparation of the heat-storage temperature-regulating textile comprises the steps of ultrasonically dispersing a mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the modified phase-change microcapsule emulsion and the blue light initiator camphorquinone for 15min, then applying the mixed solution to the surface of a Modal fabric, vertically clamping a real silk fabric applied with a reaction solution by two transparent glass plates, irradiating for 5min under a blue light L ED lamp of 200W, and taking out the treated Modal fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in example 8 was subjected to a water washing test in the same manner as in example 1.
The detection shows that the obtained phase change microcapsule has a smooth surface, the phase change latent heat value is 98.5J/g, the weight of the heat storage and temperature regulation modal fabric is increased by 19.1%, the melting phase change temperature is 28.6 ℃, the phase change latent heat is 18.2J/g, and after blue light curing, the reaction type phase change microcapsule is obviously attached to the modal fabric. After 10 times of washing, the weight of the heat-storage and temperature-adjustment modal fabric is increased by 18.8%, and the latent heat of phase change is 18.0J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has small weight gain ratio and phase change latent heat change, which shows that the phase change microcapsule has strong adhesive force on the textile base material.
Comparative example 1
A preparation method of a heat storage and temperature adjustment textile comprises the following steps:
(1) preparing phase-change microcapsules: as described in example 1.
(2) Preparing raw materials of the heat storage and temperature adjustment textile: 10cm by 10cm (length by width) of pure cotton fabric, 100g of hydroxyethyl acrylate dispersion medium, 5g of phase-change microcapsule emulsion, 0.5g of UV initiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
(3) Preparing a heat storage and temperature adjustment textile: ultrasonically dispersing the mixed solution consisting of the hydroxyethyl acrylate dispersion medium, the phase-change microcapsule emulsion and the ultraviolet initiator 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide for 15min, then applying the mixed solution to the surface of a pure cotton fabric, vertically clamping the cotton fabric applied with the reaction liquid by two transparent glass plates, irradiating the cotton fabric under a 250W ultraviolet high-pressure mercury lamp for 1min, and taking out the treated cotton fabric, namely the phase-change microcapsule heat-storage temperature-regulating textile.
The phase change microcapsule heat storage and temperature regulation textile obtained in the comparative example is subjected to a water washing test, and the test method is the same as that in example 1.
The detection shows that the obtained phase change microcapsule has a smooth surface, the phase change latent heat value is 110J/g, the weight of the heat storage and temperature adjustment cotton fabric is increased by 28.5%, the melting phase change temperature is 27.8 ℃, the phase change latent heat is 30.4J/g, and the reaction type phase change microcapsule is obviously attached to the cotton fabric after being cured by ultraviolet light. After 10 times of washing, the weight of the heat-storage temperature-regulating cotton fabric is increased by 20.3%, and the latent heat of phase change is 22.1J/g. Compared with the textile washed for 10 times, the textile with the heat storage and temperature adjustment has larger weight gain ratio and phase change latent heat change, so that the phase change microcapsule can be seriously stripped on the textile substrate, and the unmodified phase change microcapsule is assisted with the hydroxyethyl acrylate adhesive and can not be stably and firmly attached to the surface of the textile substrate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. The heat-storage temperature-regulating textile is characterized in that the heat-storage temperature-regulating textile is prepared by coating a mixture consisting of modified phase-change microcapsules, an organic monomer dispersion medium and an initiator on the surface of a textile substrate to form a coating, wherein the modified phase-change microcapsules are prepared by taking silicon dioxide as a shell layer and phase-change microcapsules taking a phase-change material as a core material through modification by a silane coupling agent.
2. The heat-storage and temperature-regulation textile as claimed in claim 1, wherein the phase-change material is any one of paraffin, fatty acid and fatty alcohol, or a mixture of any two or more of the paraffin, the fatty acid and the fatty alcohol, and the phase-change material has a phase-change temperature of 22-40 ℃.
3. The thermal storage and temperature adjustment textile according to claim 1, wherein the organic monomer dispersion medium is any one of hydroxyethyl acrylate and hydroxypropyl acrylate.
4. The thermal storage and temperature regulation textile of claim 1, wherein the silane coupling agent is any one of gamma- (methacryloyloxy) propyl trimethoxysilane, vinyl trimethoxysilane, triethoxy vinyl and vinyl tri (b-methoxyethoxy) silane.
5. The thermal storage and temperature regulation textile of claim 1, wherein the initiator is a photoinitiator, including a uv initiator or a blue light initiator.
6. The thermal storage and temperature adjustment textile according to claim 5, wherein the ultraviolet light initiator is any one of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, 2-hydroxy-2-methyl-1-phenyl-1-propanone and azobisisobutyronitrile.
7. The thermal storage and temperature adjustment textile according to claim 5, wherein the blue light initiator is any one of 1-phenyl-1, 2-propanedione and ethyl 4- (dimethylamino) benzoate.
8. The textile according to claim 1, wherein the textile substrate is any one of cotton, silk, terylene, polyester cotton, modal, tencel fabric, polypropylene non-woven fabric and polyester non-woven fabric.
9. The method for preparing the heat-storage temperature-regulating textile as claimed in claim 1, characterized by comprising the following steps:
(1) preparing a modified phase-change microcapsule: ultrasonically dispersing phase change microcapsule emulsion taking silicon dioxide as a shell layer and phase change material as a core material for 15min, adding a prehydrolyzed silane coupling agent accounting for 10-15% of the mass fraction of the phase change microcapsule emulsion, placing the obtained mixed solution in a reaction kettle at the temperature of 70-80 ℃, reacting for 3-6 h at the stirring speed of 200-300 r/min, discharging and filtering to obtain the modified phase change microcapsule;
(2) preparing a heat storage and temperature adjustment textile: and ultrasonically dispersing a mixed solution consisting of an organic monomer dispersion medium, a modified phase-change microcapsule emulsion and an initiator for 15min, coating the mixed solution on the surface of a textile substrate, and curing to obtain the heat-storage temperature-regulating textile.
10. The method according to claim 9, wherein the initiator in the step (2) is a photoinitiator, and the curing treatment is a curing treatment under irradiation of a light source for 1-5 min.
11. The method of claim 10, wherein the light source is a 250W uv high pressure mercury lamp centered at 365nm or a 200W blue L ED lamp centered at 425 nm.
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| CN112552878A (en) * | 2020-10-28 | 2021-03-26 | 杭州乐铭科技有限公司 | Phase change microcapsule, phase change microcapsule fiber and preparation method thereof |
| CN113278277A (en) * | 2021-05-25 | 2021-08-20 | 江苏晨光涂料有限公司 | Hybrid shell microcapsule-polyurethane phase change composite material |
| CN113403853A (en) * | 2021-07-29 | 2021-09-17 | 东台市东驰服装有限公司 | Waterproof and moisture permeable radiation-proof fabric and preparation method thereof |
| CN113417147A (en) * | 2021-06-29 | 2021-09-21 | 上海护理佳实业有限公司 | Intelligent temperature-adjusting non-woven fabric and absorbent product |
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| CN112064168A (en) * | 2020-09-03 | 2020-12-11 | 朱建余 | Heating anti-pilling fabric |
| CN112064168B (en) * | 2020-09-03 | 2021-12-24 | 戈枫服饰有限公司 | Heating anti-pilling fabric |
| CN112552878A (en) * | 2020-10-28 | 2021-03-26 | 杭州乐铭科技有限公司 | Phase change microcapsule, phase change microcapsule fiber and preparation method thereof |
| CN113278277A (en) * | 2021-05-25 | 2021-08-20 | 江苏晨光涂料有限公司 | Hybrid shell microcapsule-polyurethane phase change composite material |
| CN113417147A (en) * | 2021-06-29 | 2021-09-21 | 上海护理佳实业有限公司 | Intelligent temperature-adjusting non-woven fabric and absorbent product |
| CN113403853A (en) * | 2021-07-29 | 2021-09-17 | 东台市东驰服装有限公司 | Waterproof and moisture permeable radiation-proof fabric and preparation method thereof |
| CN116463106A (en) * | 2023-03-30 | 2023-07-21 | 杭州尚选科技有限公司 | Phase-change temperature-regulating microcapsule for textile and preparation method thereof |
| CN116463106B (en) * | 2023-03-30 | 2023-09-29 | 杭州尚选科技有限公司 | Phase-change temperature-regulating microcapsule for textile and preparation method thereof |
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