CN116497470A - Phase-change temperature-regulating fiber, preparation method thereof and phase-change temperature-regulating fabric - Google Patents

Phase-change temperature-regulating fiber, preparation method thereof and phase-change temperature-regulating fabric Download PDF

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Publication number
CN116497470A
CN116497470A CN202310737215.0A CN202310737215A CN116497470A CN 116497470 A CN116497470 A CN 116497470A CN 202310737215 A CN202310737215 A CN 202310737215A CN 116497470 A CN116497470 A CN 116497470A
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phase
temperature
regulating
change
change temperature
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CN116497470B (en
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赵晓娜
姚锐敏
宋鹏程
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Phase Change Energy Storage Beijing Technology Co ltd
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Phase Change Energy Storage Beijing Technology Co ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/04—Melting filament-forming substances
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses a phase-change temperature-regulating fiber and a preparation method thereof and a phase-change temperature-regulating fabric, and belongs to the technical field of phase-change materials. The phase-change temperature-regulating fiber comprises, by weight, 200-900 parts of phase-change material, 100-450 parts of supporting material and 40-300 parts of regulating material; wherein the adjusting material comprises at least one of isopropyl stearate, butyl stearate, isooctyl stearate, isopropyl palmitate, butyl palmitate, isooctyl palmitate, isopropyl myristate, butyl myristate, isooctyl myristate, isopropyl laurate, butyl laurate, isooctyl laurate, white oil and silicone oil. The phase-change temperature-regulating fiber has lower spinning temperature, higher enthalpy and better softness. The preparation method is simple and easy to operate. The fabric with the phase-change temperature-regulating fiber fabric can still keep better softness when the ambient temperature is lower than the phase-change temperature.

Description

Phase-change temperature-regulating fiber, preparation method thereof and phase-change temperature-regulating fabric
Technical Field
The invention relates to the technical field of phase-change materials, in particular to a phase-change temperature-regulating fiber, a preparation method thereof and a phase-change temperature-regulating fabric.
Background
Along with the improvement of economy and technology level, people begin to pursue more comfortable and convenient life experience, the requirements on clothes gradually tend to be diversified and multifunctional, and the development and development of heat-storage temperature-regulating fabrics are suddenly in progress. Technological workers are striving to seek an environmentally friendly way to meet the needs of people. Various novel heat-accumulating temperature-regulating textiles such as far infrared fibers, ceramic fabrics and the like are sequentially developed. Compared with other materials, the phase-change heat storage fabric can absorb or release more heat near the phase-change temperature, is insensitive to the influence of moisture and external pressure, is safe and environment-friendly, has wide application prospect in the temperature regulation field, can be used for outdoor wearing, blankets, duvets, mattresses, pillowcases and the like, and can also be used in the electronic computer industry.
However, the phase-change temperature-regulating fabric has a great disadvantage that when the ambient temperature is lower than the phase-change point, the phase-change material exists in a solid state, so that the phase-change composite material is hardened and embrittled, and the tensile mechanical property is poor.
In view of this, the present invention has been made.
Disclosure of Invention
One of the objectives of the present invention is to provide a phase-change temperature-regulating fiber with lower spinning temperature, higher enthalpy and better softness.
The second object of the present invention is to provide a method for preparing the phase-change temperature-regulating fiber.
The invention further aims to provide a fabric containing the phase-change temperature-regulating fiber fabric.
The invention can be realized as follows:
in a first aspect, the present application provides a phase-change temperature-regulating fiber, wherein the phase-change temperature-regulating fiber comprises, by weight, 200-900 parts of a phase-change material, 100-450 parts of a supporting material, and 40-300 parts of a regulating material;
wherein the adjusting material comprises at least one of isopropyl stearate, butyl stearate, isooctyl stearate, isopropyl palmitate, butyl palmitate, isooctyl palmitate, isopropyl myristate, butyl myristate, isooctyl myristate, isopropyl laurate, butyl laurate, isooctyl laurate, white oil and silicone oil.
In an alternative embodiment, the phase change material comprises at least one of paraffin, octadecane, methyl palmitate, ethyl stearate, tetradecyl alcohol, methyl stearate, lauric acid, polyethylene glycol, polyurethane, stearyl alcohol, stearic acid, and palmitic acid.
In alternative embodiments, the support material comprises at least one of high density polyethylene, polyvinyl chloride, polyacrylonitrile, polypropylene, polyamide, polystyrene, polymethyl methacrylate, polybutene, polycarbonate, polybutyl acrylate, polyacrylic acid, polyethyl methacrylate, acrylate copolymers, polytrimethylene terephthalate, polyvinyl alcohol, fluororesin modified polymethyl methacrylate, vinyl acetate resin, polyimide, polybutyl methacrylate, ethylene-vinyl acetate copolymer, and linear low density polyethylene, and/or at least one of natural rubber, styrene-butadiene-styrene block copolymer, styrene-ethylene-butene-styrene block copolymer, ethylene-1-octene block copolymer, ethylene-octene copolymer, styrene-ethylene/propylene-styrene block copolymer, and styrene- [ ethylene- (ethylene-propylene) -styrene block copolymer ].
In an alternative embodiment, the feedstock for the phase change thermoregulation fiber further comprises no more than 100 parts of an auxiliary agent;
the auxiliary agent comprises at least one of an antioxidant and a compatilizer.
In an alternative embodiment, the antioxidant model number includes at least one of 1076, 168, 1010, and 618;
and/or the compatibilizer comprises at least one of maleic anhydride grafted PP, maleic anhydride grafted polystyrene, maleic anhydride grafted SEBS, and polyvinyl alcohol-polystyrene block copolymer.
In a second aspect, the present application provides a method for preparing the phase-change temperature-regulating fiber, comprising the steps of: the raw materials are mixed and melted, and then granulated and spun.
In an alternative embodiment, the phase change material and the regulating material are subjected to melting treatment, and then cooled and crushed to obtain composite phase change particles; then mixing the composite phase-change particles with the rest of raw materials to obtain a mixed phase-change material; extruding, granulating and spinning the mixed phase-change raw materials.
In an alternative embodiment, the spinning process comprises: the spinning temperature is 80-200 ℃, the screw rotating speed is 150-250r/min, and the diameter of the spinning hole is 0.1-0.8mm.
In an alternative embodiment, during spinning, the screw arrangement is divided into a feed section, a melting section and a metering section;
wherein the temperature of the feeding section is 80-150 ℃, the temperature of the melting section is 150-200 ℃, and the temperature of the metering section is 120-180 ℃.
In a third aspect, the present application provides a phase change temperature regulating fabric comprising the phase change temperature regulating fibers of the foregoing embodiments.
The beneficial effects of this application include:
according to the method, the regulating material is added into the phase-change spinning system, so that the phase-change spinning system can still keep a liquid state when the ambient temperature is lower than the phase-change temperature of the phase-change material, a movable space can be provided for the supporting material, the three-dimensional nano structure of the supporting material is maintained to be more stable, and the softness of corresponding fibers and rear-end fabric products can be improved; in addition, the spinning temperature can be reduced by adding the regulating material, so that the problem of volatilization of the phase-change material in the spinning process can be effectively solved or improved.
The phase-change temperature-regulating fiber has the advantages of low spinning temperature, high enthalpy and good softness. The preparation method of the phase-change temperature-regulating fiber is simple and easy to operate. The fabric with the phase-change temperature-regulating fiber fabric can still keep better softness when the ambient temperature is lower than the phase-change temperature.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The phase-change temperature-regulating fiber, the preparation method thereof and the phase-change temperature-regulating fabric are specifically described below.
The inventors creatively propose: by adding the regulating material into the phase-change spinning system, not only the softness of the corresponding fiber and the rear-end fabric product can be improved, but also the problem of volatilization of the phase-change material in the spinning process can be effectively solved or improved.
Based on the above, the application provides a phase-change temperature-regulating fiber, which comprises, by weight, 200-900 parts of phase-change material, 100-450 parts of supporting material and 40-300 parts of regulating material.
The phase change material may illustratively include at least one of paraffin wax, octadecane, methyl palmitate, ethyl stearate, tetradecanol, methyl stearate, lauric acid, polyethylene glycol, polyurethane, stearyl alcohol, stearic acid, and palmitic acid.
The support material may illustratively include at least one of High Density Polyethylene (HDPE), polyvinyl chloride (PVC), polyacrylonitrile (PAN), polypropylene (PP), polyamide (PA), polystyrene (PS), polymethyl methacrylate (PMMA), polybutene (PB), polycarbonate (PC), polybutyl acrylate (PBA), polyacrylic acid (PAA), polyethyl methacrylate (PEMA), acrylate copolymer, polytrimethylene terephthalate (PTT), polyvinyl alcohol (PVA), fluororesin modified polymethyl methacrylate, vinyl acetate resin, polyimide (PI), polybutyl methacrylate (PBMA), ethylene-vinyl acetate copolymer (EVA) and Linear Low Density Polyethylene (LLDPE), and/or at least one of natural rubber, styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene-butene-styrene block copolymer (SEBS), ethylene-1-Octene Block Copolymer (OBC), ethylene-octene copolymer (POE), styrene-ethylene/propylene-styrene block copolymer (SEPS) and styrene- [ ethylene- (ethylene-propylene) -styrene block copolymer (eps).
The conditioning material may include, for example, at least one of isopropyl stearate, butyl stearate, isooctyl stearate, isopropyl palmitate, butyl palmitate, isooctyl palmitate, isopropyl myristate, butyl myristate, isooctyl myristate, isopropyl laurate, butyl laurate, isooctyl laurate, white oil, and silicone oil.
It should be noted that, the above adjusting material can still keep a liquid state when the ambient temperature is lower than the phase transition temperature of the phase transition material, so as to provide a movable space for the supporting material, maintain the three-dimensional nano structure of the supporting material to be more stable, and further improve the softness of the corresponding fiber and the rear end fabric product; in addition, the spinning temperature can be reduced by adding the regulating material, so that the problem of volatilization of the phase-change material in the spinning process can be effectively solved or improved.
For reference, the amount of the phase change material may be 200 parts, 250 parts, 300 parts, 350 parts, 400 parts, 450 parts, 500 parts, 550 parts, 600 parts, 650 parts, 700 parts, 750 parts, 800 parts, 850 parts, 900 parts, or the like, for example, and may be any other value within the range of 200 to 900 parts.
The amount of the supporting material may be exemplified by 100 parts, 120 parts, 150 parts, 180 parts, 200 parts, 220 parts, 250 parts, 280 parts, 300 parts, 320 parts, 350 parts, 380 parts, 400 parts, 420 parts, 450 parts, etc., and may be any other value in the range of 100 to 450 parts.
The amount of the regulating material may be, for example, 40 parts, 50 parts, 80 parts, 100 parts, 120 parts, 150 parts, 180 parts, 200 parts, 220 parts, 250 parts, 280 parts, 300 parts, or the like, and may be any other value in the range of 40 to 300 parts.
It should be noted that, if the amount of the adjusting material is less than 40 parts, the problems of improving the softness of the product and improving the volatilization of the phase change material in the spinning process cannot be solved; if it exceeds 300 parts, the enthalpy value of the phase-change temperature-controlling fiber tends to be lowered.
If the usage amount of the supporting material is less than 100 parts, the three-dimensional nano structure of the supporting material is easily unstable, and the phase change material is easily leaked; if the amount of the supporting material is more than 450 parts, the fluidity during spinning is easily poor and the spinning temperature is high.
Further, the materials of the phase-change temperature-regulating fiber provided by the application can further comprise no more than 100 parts (such as 100 parts, 90 parts, 80 parts, 70 parts, 60 parts, 50 parts, 40 parts, 30 parts, 20 parts or 10 parts, etc.) of auxiliary agents.
For reference, the auxiliary agent may include at least one of an antioxidant and a compatibilizer.
The antioxidant model number may include, among other things, at least one of 1076, 168, 1010, and 618, for example.
The compatibilizer illustratively may include at least one of maleic anhydride grafted PP, maleic anhydride grafted polystyrene, maleic anhydride grafted SEBS, and polyvinyl alcohol-polystyrene block copolymer.
By adding the auxiliary agent, the phase-change temperature-regulating fiber has the effects of antioxidation and better compatibility.
In other embodiments, other types of auxiliaries may be added as needed, and the method is not limited thereto.
Correspondingly, the application also provides a preparation method of the phase-change temperature-regulating fiber, which comprises the following steps: the raw materials are mixed and melted, and then granulated and spun.
In some specific embodiments, the phase change material and the conditioning material may be first melt processed, then cooled and crushed to obtain composite phase change particles (particle size may be 0.5-5 mm); then mixing the composite phase-change particles with the rest of raw materials to obtain a mixed phase-change material; extruding, granulating and spinning the mixed phase-change raw materials.
The mixing process of the raw materials can be carried out in a high-speed mixer, and the corresponding mixing rotating speed can be 150-1000r/min.
Preferably, the spinning process comprises: the spinning temperature is 80-200 ℃, the screw rotating speed is 150-250r/min, and the diameter of the spinning hole is 0.1-0.8mm.
For reference, during spinning, the screw arrangement is divided into a feed section, a melting section and a metering section.
Wherein the temperature of the feeding section is 80-150deg.C (such as 80deg.C, 90deg.C, 100deg.C, 110deg.C, 120deg.C, 130deg.C, 140deg.C or 150deg.C), the temperature of the melting section is 150-200deg.C (such as 150deg.C, 160deg.C, 170deg.C, 180deg.C or 200deg.C), and the temperature of the metering section is 120-180deg.C (such as 120deg.C, 130deg.C, 140deg.C, 150deg.C, 160deg.C, 170deg.C or 180deg.C).
The screw rotation speed can be 150r/min, 160r/min, 170r/min, 180r/min, 190r/min, 200r/min, 210r/min, 220r/min, 230r/min, 240r/min or 250r/min, etc., and can also be any other value in the range of 150-250 r/min.
The diameter of the spinning may be 0.1mm, 0.2mm, 0.3mm, 0.4 mm mm, 0.5 mm mm, 0.6 mm mm, 0.7 mm mm or 0.8mm, etc., or any other value within the range of 0.1mm to 0.8mm.
It should be noted that the above-mentioned spinning temperature is too high and can volatilize the phase change material, and this application can reduce the spinning temperature through using the regulating material than prior art, avoids appearing above-mentioned problem.
The rotating speed of the screw mainly influences the melting state of the materials, and if the rotating speed of the screw is too high (higher than 250 r/min), uneven mixing of the materials is easily caused, and the spinning effect is influenced; if the screw speed is too low (below 150 r/min), the material is liable to remain in the screw for a long time and be oxidized.
The spinning diameter is mainly influenced, and if the spinning diameter is too small (less than 0.1 mm), melt spinning discontinuity is easily caused; if the diameter of the spinning is too large (more than 0.8 mm), the spinning is easy to be thicker, and the subsequent process is influenced.
On the other hand, the method provided by the application is simple to operate, the process is easy to control, and industrial production is facilitated.
In addition, the application also provides a phase-change temperature-regulating fabric, which comprises the phase-change temperature-regulating fiber.
For reference, the phase change temperature regulating fabric may be clothing, blanket, quilt, mattress or pillowcase, etc.
The phase-change temperature-regulating fabric containing the phase-change temperature-regulating fiber fabric has the characteristics of high enthalpy value, softness and comfort.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
In the following examples and comparative examples, parts are in g.
Example 1
The present example provides a phase change temperature control fiber comprising 400g of phase change material (lauric acid), 160g of conditioning material (white oil), 440g of support material (40 g of high density polyethylene and 400g of ethylene-1-octene block copolymer) and 8.8g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
mixing the above raw materials in a high-speed mixer (with the rotating speed of 500 r/min), granulating the mixed phase-change raw materials by a double-screw extruder (with the particle size of 3-5 mm), and adopting single-screw spinning equipment to obtain the phase-change temperature-regulating fiber.
In the spinning process, the temperature of a single screw feeding section is 90 ℃, the temperature of a melting section is 190 ℃, the temperature of a metering section is 160 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Example 2
The present example provides a phase change temperature control fiber comprising 400g of phase change material (lauric acid), 160g of conditioning material (butyl laurate), 440g of support material (50 g of polypropylene, 40g of high density polyethylene and 350g of ethylene-1-octene block copolymer) and 8.8g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 500 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 85 ℃, the temperature of a melting section is 190 ℃, the temperature of a metering section is 160 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Example 3
The present example provides a phase change temperature control fiber comprising 400g of phase change material (octadecane), 160g of conditioning material (isooctyl stearate), 440g of support material (40 g of ethylene-vinyl acetate copolymer, 200g of ethylene-1-octene block copolymer, and 200g of styrene-ethylene/propylene-styrene block copolymer), and 9g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 50 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 300 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 80 ℃, the temperature of a melting section is 180 ℃, the temperature of a metering section is 160 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Example 4
This example provides a phase change temperature control fiber comprising 400g of phase change material (stearic acid), 160g of conditioning material (100 g isopropyl stearate and 60g white oil), 440g of support material (40 g high density polyethylene and 400g styrene-ethylene-butylene-styrene block copolymer) and 10g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 400 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 130 ℃, the temperature of a melting section is 190 ℃, the temperature of a metering section is 170 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.30 mm.
Example 5
This example provides a phase change temperature regulating fiber comprising 400g of phase change material (stearic acid), 160g of regulating material (80 g isopropyl myristate and 80g white oil), 440g of supporting material (50 g linear low density polyethylene, 240g ethylene-1-octene block copolymer, 150g styrene-ethylene/propylene-styrene block copolymer) and 17.6g antioxidant (8.8 g 1076 and 8.8g 168).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 450 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 125 ℃, the temperature of a melting section is 185 ℃, the temperature of a metering section is 170 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.30 mm.
Example 6
This example provides a phase change temperature control fiber comprising 400g of phase change material (350 g methyl stearate and 50g methyl palmitate), 160g of conditioning material (isooctyl stearate), 440g of support material (20 g polypropylene, 20g linear low density polyethylene and 400g styrene-ethylene/propylene-styrene block copolymer), and 17.6g of antioxidant (8.8 g 1010 and 8.8g 168).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-3 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 400 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 100 ℃, the temperature of a melting section is 180 ℃, the temperature of a metering section is 150 ℃, the screw rotating speed is 160 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Example 7
This example provides a phase change temperature control fiber comprising 500g of phase change material (263 g of stearyl alcohol and 237g of stearic acid), 160g of conditioning material (butyl stearate), 340g of support material (10 g of polypropylene, 30g of linear low density polyethylene and 300g of styrene-ethylene-butylene-styrene block copolymer), and 6.8g of antioxidant (3.4 g of 1010 and 3.4g of 168).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 300 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 150 ℃, the temperature of a melting section is 200 ℃, the temperature of a metering section is 170 ℃, the screw rotating speed is 250 revolutions per minute, and the diameter of a spinneret orifice is 0.20 mm.
Example 8
This example provides a phase change temperature control fiber comprising 400g of phase change material (400 g of stearyl alcohol), 260g of conditioning material (150 g of isopropyl stearate and 110g of white oil), 340g of support material (40 g of high density polyethylene and 300g of styrene- [ ethylene- (ethylene-propylene) ] -styrene block copolymer), and 12g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
firstly, melting and mixing the phase change material and the regulating material at 80 ℃, cooling, and crushing to obtain composite phase change particles (the particle size is 1-5 mm). The composite phase-change particles and the rest raw materials are mixed together in a high-speed mixer (the rotating speed is 400 r/min) to obtain a mixed phase-change raw material, and the mixed phase-change raw material is granulated by a double-screw extruder (the particle size is 3-5 mm) and then the phase-change temperature-regulating fiber is obtained by adopting single-screw spinning equipment.
In the spinning process, the temperature of a single screw feeding section is 145 ℃, the temperature of a melting section is 200 ℃, the temperature of a metering section is 160 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Example 9
This embodiment differs from embodiment 3 in that: the rotation speed of the screw rod in the spinning process is 150r/min, and the diameter of the spinneret orifice is 0.1mm.
Example 10
This embodiment differs from embodiment 3 in that: the rotation speed of the screw rod in the spinning process is 250r/min, and the diameter of the spinneret orifice is 0.8mm.
Comparative example 1
This comparative example provides a phase change temperature control fiber comprising 400g of phase change material (lauric acid), 440g of support material (40 g of high density polyethylene and 400g of ethylene-1-octene block copolymer), and 8.8g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
granulating the raw materials by a double-screw extruder (the grain diameter is 3-5 mm), and adopting single-screw spinning equipment to obtain the phase-change temperature-regulating fiber.
In the spinning process, the temperature of a single screw feeding section is 160 ℃, the temperature of a melting section is 220 ℃, the temperature of a metering section is 200 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Comparative example 2
This comparative example provides a phase change temperature regulating fiber comprising 400g of phase change material (octadecane), 600g of support material (80 g of ethylene-vinyl acetate copolymer and 520g of styrene-ethylene/propylene-styrene block copolymer) and 9g of antioxidant (1076).
The phase-change temperature-regulating fiber is prepared by the following method:
granulating the raw materials by a double-screw extruder (the grain diameter is 3-5 mm), and adopting single-screw spinning equipment to obtain the phase-change temperature-regulating fiber.
In the spinning process, the temperature of a single screw feeding section is 160 ℃, the temperature of a melting section is 220 ℃, the temperature of a metering section is 200 ℃, the screw rotating speed is 200 revolutions per minute, and the diameter of a spinneret orifice is 0.25 mm.
Comparative example 3
The difference between this comparative example and example 3 is that: the support material was 40g of ethylene-vinyl acetate copolymer and 460g of styrene-ethylene/propylene-styrene block copolymer.
Comparative example 4
The difference between this comparative example and example 3 is that: the support material was 40g of ethylene-vinyl acetate copolymer and 40g of styrene-ethylene/propylene-styrene block copolymer.
Comparative example 5
The difference between this comparative example and example 3 is that: the amount of the conditioning material was 20g.
Comparative example 6
The difference between this comparative example and example 3 is that: the amount of conditioning material was 350g.
Comparative example 7
The difference between this comparative example and example 3 is that: in the spinning process, the rotating speed of the screw is 100r/min.
Comparative example 8
The difference between this comparative example and example 3 is that: in the spinning process, the rotating speed of the screw is 300r/min.
Comparative example 9
The difference between this comparative example and example 3 is that: during spinning, the diameter of the spinneret orifice was 0.05mm.
Comparative example 10
The difference between this comparative example and example 3 is that: in the spinning process, the diameter of the spinneret orifice is 1mm.
Test examples
The spinning temperatures (the whole temperature of the single screw 3 stage) and the enthalpy and softness of the fibers obtained in the preparation of examples 1 to 10 and comparative examples 1 to 10 were measured by a differential scanning calorimeter DSC according to GB/T19466.3-2004/ISO 11357-3, and the softness was evaluated by visual examination of the hand feeling of the fibers under nitrogen protection at a rising and falling temperature rate of 10 ℃/min. The results are shown in Table 1.
Table 1 test results
As can be seen from Table 1, the solutions provided in examples 1-10 are effective in reducing the spinning temperature of the fibers, maintaining the final enthalpy of the fibers, and increasing the softness of the fibers.
The proposal provided by the comparative examples 1-2 requires higher spinning temperature, and the obtained phase-change temperature-regulating fiber has lower enthalpy value and stiff fabric.
It can be seen from comparative examples 3 and comparative examples 3 to 10 that when the amounts of the supporting material and the regulating material are set improperly, or the screw speed and the orifice diameter are set improperly during spinning, the quality of the product is affected and even the spinning is impossible.
In summary, the phase-change temperature-regulating fiber provided by the application has lower spinning temperature, higher enthalpy value and better softness. The preparation method of the temperature-changing and temperature-regulating fiber is simple and easy to operate. The fabric with the phase-change temperature-regulating fiber fabric can still keep better softness when the ambient temperature is lower than the phase-change temperature.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The phase-change temperature-regulating fiber is characterized by comprising, by weight, 200-900 parts of phase-change materials, 100-450 parts of supporting materials and 40-300 parts of regulating materials;
wherein the regulating material comprises at least one of isopropyl stearate, butyl stearate, isooctyl stearate, isopropyl palmitate, butyl palmitate, isooctyl palmitate, isopropyl myristate, butyl myristate, isooctyl myristate, isopropyl laurate, butyl laurate, isooctyl laurate, white oil and silicone oil.
2. The phase change temperature regulating fiber of claim 1, wherein the phase change material comprises at least one of paraffin wax, octadecane, methyl palmitate, ethyl stearate, tetradecyl alcohol, methyl stearate, lauric acid, polyethylene glycol, polyurethane, stearyl alcohol, stearic acid, and palmitic acid.
3. The phase change temperature regulating fiber of claim 1, wherein the support material comprises at least one of high density polyethylene, polyvinyl chloride, polyacrylonitrile, polypropylene, polyamide, polystyrene, polymethyl methacrylate, polybutene, polycarbonate, polybutyl acrylate, polyacrylic acid, polyethyl methacrylate, acrylate copolymer, polytrimethylene terephthalate, polyvinyl alcohol, fluororesin modified polymethyl methacrylate, vinyl acetate resin, polyimide, polybutyl methacrylate, ethylene-vinyl acetate copolymer, and linear low density polyethylene, and/or at least one of natural rubber, styrene-butadiene-styrene block copolymer, styrene-ethylene-butene-styrene block copolymer, ethylene-1-octene block copolymer, ethylene-octene copolymer, styrene-ethylene/propylene-styrene block copolymer, and styrene- [ ethylene- (ethylene-propylene) ] -styrene block copolymer.
4. A phase change temperature regulating fiber according to any one of claims 1-3, wherein the raw materials of the phase change temperature regulating fiber further comprise no more than 100 parts of an auxiliary agent;
the auxiliary agent comprises at least one of an antioxidant and a compatilizer.
5. The phase change temperature regulating fiber of claim 4, wherein the antioxidant is of a type comprising at least one of 1076, 168, 1010, and 618;
and/or the compatibilizer comprises at least one of maleic anhydride grafted PP, maleic anhydride grafted polystyrene, maleic anhydride grafted SEBS, and polyvinyl alcohol-polystyrene block copolymer.
6. A method of preparing a phase change temperature regulating fiber according to any one of claims 1-5, comprising the steps of: and mixing and melting the raw materials, and granulating and spinning.
7. The preparation method according to claim 6, wherein the phase change material and the regulating material are subjected to melting treatment, and then cooled and crushed to obtain composite phase change particles; then mixing the composite phase-change particles with the rest of raw materials to obtain a mixed phase-change material; extruding, granulating and spinning the mixed phase-change raw materials.
8. The method of claim 7, wherein the spinning process comprises: the spinning temperature is 80-200 ℃, the screw rotating speed is 150-250r/min, and the diameter of the spinning hole is 0.1-0.8mm.
9. The method of claim 8, wherein during spinning, the screw arrangement is divided into a feed section, a melt section and a metering section;
wherein the temperature of the feeding section is 80-150 ℃, the temperature of the melting section is 150-200 ℃, and the temperature of the metering section is 120-180 ℃.
10. A phase change temperature regulating fabric, wherein the fabric of the phase change temperature regulating fabric comprises the phase change temperature regulating fiber according to any one of claims 1-5.
CN202310737215.0A 2023-06-21 2023-06-21 Phase-change temperature-regulating fiber, preparation method thereof and phase-change temperature-regulating fabric Active CN116497470B (en)

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Publication number Priority date Publication date Assignee Title
KR20120126457A (en) * 2011-05-11 2012-11-21 (주)세프라텍 Polyolefin hollow fiber membrane and thermal induced phase separation process therefor
CN104845589A (en) * 2015-03-25 2015-08-19 上海世酷新材料科技有限公司 Shaped composite phase-change cold-hot compress material
CN113667459A (en) * 2021-08-31 2021-11-19 华南理工大学 Electric heating flexible composite phase change material, preparation method thereof and application of electric heating flexible composite phase change material as thermal therapy product
CN114892307A (en) * 2022-07-13 2022-08-12 北京金羽新能科技有限公司 Elastic phase-change temperature-regulating fiber, preparation method thereof and temperature-regulating bonding layer of lithium battery aluminum plastic film comprising elastic phase-change temperature-regulating fiber
CN116004012A (en) * 2022-12-24 2023-04-25 北京创盈光电医疗科技有限公司 Flexible heat storage phase change composite material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120126457A (en) * 2011-05-11 2012-11-21 (주)세프라텍 Polyolefin hollow fiber membrane and thermal induced phase separation process therefor
CN104845589A (en) * 2015-03-25 2015-08-19 上海世酷新材料科技有限公司 Shaped composite phase-change cold-hot compress material
CN113667459A (en) * 2021-08-31 2021-11-19 华南理工大学 Electric heating flexible composite phase change material, preparation method thereof and application of electric heating flexible composite phase change material as thermal therapy product
CN114892307A (en) * 2022-07-13 2022-08-12 北京金羽新能科技有限公司 Elastic phase-change temperature-regulating fiber, preparation method thereof and temperature-regulating bonding layer of lithium battery aluminum plastic film comprising elastic phase-change temperature-regulating fiber
CN116004012A (en) * 2022-12-24 2023-04-25 北京创盈光电医疗科技有限公司 Flexible heat storage phase change composite material and preparation method thereof

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