CN119308055A - Optical thermal coupling thermal insulation fabric and preparation method thereof - Google Patents
Optical thermal coupling thermal insulation fabric and preparation method thereof Download PDFInfo
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- CN119308055A CN119308055A CN202411470855.0A CN202411470855A CN119308055A CN 119308055 A CN119308055 A CN 119308055A CN 202411470855 A CN202411470855 A CN 202411470855A CN 119308055 A CN119308055 A CN 119308055A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/52—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads thermal insulating, e.g. heating or cooling
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/547—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads with optical functions other than colour, e.g. comprising light-emitting fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/60—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the warp or weft elements other than yarns or threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/102—Patterned fabrics or articles with stitch pattern
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/20—Physical properties optical
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Woven Fabrics (AREA)
Abstract
The invention provides an optical thermal coupling thermal insulation fabric and a preparation method thereof, wherein a textile process is utilized to weave light absorption yarns and heat reflection yarns into a double-layer structure with one side being the heat reflection yarns and the other side being the light absorption yarns, and (3) taking the hollow heat-insulating material as a filling core of weft yarn to be placed in the double-layer tissue, so as to obtain the optical thermal coupling thermal insulation fabric. According to the invention, by combining the heat reflection yarns and the light absorption yarns, the fabric can effectively reflect heat emitted by a human body, heat loss is reduced, external light energy is absorbed and converted into heat energy, the heat preservation effect is improved, the volume of a static air layer is increased by the hollow heat insulation material, and the heat preservation effect is further improved on the premise that the flexibility of the fabric is not influenced. The preparation process is simple, and the high-efficiency thermal-insulation, comfortable and environment-friendly thermal-insulation fabric is provided through the combination of textile technology and materials, so that the thermal-insulation fabric has wide application prospect and commercial value.
Description
Technical Field
The invention relates to the technical field of textile, in particular to an optical thermal coupling thermal insulation fabric and a preparation method thereof.
Background
Natural materials such as silk, cotton, industrial hemp, etc. are widely used in the traditional textile field to achieve warmth retention and comfort of clothing. The traditional thermal clothes often rely on massive materials and multilayer superposition to achieve a thermal effect, so that not only is the activity degree of a wearer limited, but also the wearing thickness is increased, therefore, the traditional textile has difficulty in meeting the requirements of modern diversification and functionalization, and particularly in the fields of outdoor exercises, medical care and the like, and higher requirements are put forward on the thermal property, air permeability and moisture permeability of the textile. The traditional thermal insulation materials, such as pure cotton fabrics, have good air permeability and moisture permeability, but have limited thermal insulation performance under extreme climatic conditions, and are difficult to effectively isolate the influence of external low-temperature environments on human bodies. While some high-tech materials, such as Mylar blanket, provide good insulation, they are relatively air permeable and can be uncomfortable for the human body after long-term use.
Advanced material research with human body thermal radiation control functions has attracted considerable attention for regulating the heat exchange (infrared radiation flow) of the human body with the surrounding environment. Infrared transparent radiation textiles, emissive radiation textiles, solar reflective radiation refrigeration textiles, and conductive refrigeration textiles with enhanced thermal conductivity, etc., have achieved some success in maintaining cool in a warm environment. In contrast, in cold climates, textile products with warming action are in urgent need to reduce heat loss to the surrounding environment. Currently, thermal insulation materials such as porous aerogel fibers and infrared reflecting materials incorporating metal particles and wires have achieved some result in reducing heat loss. However, there is still a technical bottleneck to implement the self-heating function of the textile to compensate for the heat dissipation of the infrared radiation. Accordingly, the development of textiles with self-heating functions is a hotspot of current research.
In view of the above, there is a need to design an improved optical-thermal coupling thermal fabric and a preparation method thereof to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the optical thermal coupling thermal insulation fabric and the preparation method thereof, wherein a double-layer structure is woven by utilizing light absorption yarns and heat reflection yarns through a spinning process, and the hollow tubular heat insulation material is combined, so that the light absorption property is increased, and the thermal insulation effect is improved.
In order to achieve the above purpose, the invention provides a preparation method of an optical thermal coupling thermal insulation fabric, which comprises the following steps:
and weaving the light-absorbing yarns and the heat-reflecting yarns into a double-layer structure with one side being the heat-reflecting yarns and one side being the light-absorbing yarns by adopting a weaving process, and putting a hollow heat-insulating material serving as a filling yarn into the double-layer structure to obtain the optical thermal coupling thermal insulation fabric.
As a further improvement of the invention, the light absorbing yarn has an absorptivity of more than 90% in the solar wave band of 280-2500 nm.
As a further improvement of the invention, the light-absorbing yarn is prepared by surface modification of a light-absorbing material with a non-light-absorbing yarn, or the light-absorbing yarn is prepared by spinning a mixture of a light-absorbing material and a polymer material.
Further, the light absorbing material is one of a carbonization tube, graphene, zirconium carbide, polypyrrole and carbon black, the non-light absorbing yarn is one of cotton fiber, wool fiber, silk fiber and regenerated cellulose fiber, and the high polymer material is one of polyurethane, polylactic acid and terylene.
As a further improvement of the invention, the heat reflection yarn is obtained by modifying the metal surface of natural fibers or chemical fibers, wherein the natural fibers are one of cotton fibers, wool fibers and silk fibers, and the chemical fibers are one of terylene, acrylic fibers and regenerated cellulose fibers.
As a further improvement of the present invention, the hollow heat insulating material is one of a hollow silicone tube, a polyethylene hollow tube and a polyurethane hollow tube.
Further, the inner diameter of the hollow heat insulation material is 0.4-0.8 mm.
As a further improvement of the invention, the weaving process is weaving or knitting, and the weaving mode is that the heat reflection yarns and the light absorption yarns are used as warp yarns, and a tying double-layer structure is adopted to weave the heat reflection yarns, the light absorption yarns and the hollow heat insulation material into a double-sided core filling fabric.
The knitting mode is that the heat reflection yarn and the light absorption yarn are used as main yarns, a weft knitting mode is adopted, and hollow heat insulation materials are used as core filling yarns for weft lining knitting, so that the double-sided core filling fabric is obtained.
The invention also provides an optical thermal coupling thermal fabric which is prepared by the preparation method.
The beneficial effects of the invention are as follows:
The invention provides an optical thermal coupling thermal insulation fabric and a preparation method thereof, wherein a textile process is utilized to weave light absorption yarns and heat reflection yarns into a double-layer structure with one side being the heat reflection yarns and the other side being the light absorption yarns, and (3) taking the hollow heat-insulating material as a filling core of weft yarn to be placed in the double-layer tissue, so as to obtain the optical thermal coupling thermal insulation fabric. The invention adopts double-sided design to superimpose optical and thermal coupling, changes mutual radiation energy exchange among skin, fabric and environment, combines hollow heat insulation materials, increases light absorption and improves thermal insulation effect. The preparation process is simple, and the high-efficiency thermal-insulation, comfortable and environment-friendly thermal-insulation fabric is provided through the combination of textile technology and materials, so that the thermal-insulation fabric has wide application prospect and commercial value.
According to the invention, the heat reflection yarns and the light absorption yarns are combined, so that the fabric can effectively reflect the heat emitted by a human body, the heat loss is reduced, and the external light energy is absorbed and converted into heat energy, thereby improving the warm-keeping effect. The light absorbing yarns absorb light energy and convert the light energy into heat energy, so that the effective management and utilization of the heat are realized. The external light energy is used as the supplement of heat energy, so that the dependence on traditional energy sources is reduced, and certain energy-saving and environment-friendly benefits are achieved.
The invention adopts the core filling structure to combine with the hollow tubular heat insulation material, increases the volume of a static air layer, and improves the warm-keeping effect on the premise of not affecting the flexibility of the fabric.
Compared with other common textiles, the double-sided coupling fabric provided by the invention has lower heat conductivity, and outdoor heat insulation data in sunny days show that the fabric has higher temperature differences of more than 10 ℃ and 5 ℃ compared with a sample without special treatment on double-sided pure cotton and a Mylar fabric sample. Compared with a Mylar fabric sample and pure cotton woven fabric with the same thickness, the optical thermal coupling thermal insulation fabric provided by the invention has excellent air permeability, and the moisture permeability is similar to that of the pure cotton fabric, so that the balance between functionality and comfort is realized.
Drawings
Fig. 1 is a schematic structural view of an optical thermal coupling thermal fabric provided by the invention.
Fig. 2 is a schematic cross-sectional view of the optical thermal coupling thermal fabric provided by the invention.
Fig. 3 is a cross-sectional 3D microscope image of the optical thermal coupling thermal fabric provided in embodiment 1 of the present invention.
Fig. 4 is a solar absorption spectrum of the thermal fabric provided in example 1 and comparative example 1 of the present invention.
Fig. 5 shows the heat insulation effect of the thermal fabric provided in example 1 and comparative example 2 under a heating power of 100W/m 2.
Fig. 6 shows the heat insulation effect of the thermal fabric provided in example 1 and comparative example 2 under a heating power of 200W/m 2.
Fig. 7 shows the heat insulation effect of the thermal fabric provided in example 1 and comparative example 2 under heating power of 300W/m 2.
Fig. 8 is clear day thermal insulation data of the thermal fabrics provided in example 1 and comparative example 3 of the present invention.
Fig. 9 is a graph showing the air permeability test results of the thermal fabric provided in example 1 and comparative example 3.
Fig. 10 shows the results of the moisture permeability test of the thermal fabric provided in example 1, comparative example 1 and comparative example 3.
Reference numerals
1. Light absorption yarn, hollow heat insulation material and heat reflection yarn.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to aspects of the present invention are shown in the drawings, and other details not greatly related to the present invention are omitted.
In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides a preparation method of an optical thermal coupling thermal fabric, which comprises the following steps:
And weaving the light-absorbing yarns 1 and the heat-reflecting yarns 3 into a double-layer structure with one surface being the heat-reflecting yarns 3 and one surface being the light-absorbing yarns 1 by adopting a weaving process, and putting the hollow heat-insulating material 2 serving as a filling yarn into the double-layer structure to obtain the optical thermal coupling thermal insulation fabric.
Specifically, the light absorbing yarn 1 is preferably a yarn having an absorptivity of 90% or more in the solar light wavelength range 280 to 2500nm, and can efficiently absorb most of the wavelength in the solar light, thereby converting it into heat energy.
The light-absorbing yarn 1 is prepared by modifying the surface of a light-absorbing material into a non-light-absorbing yarn, namely coating or chemically bonding the light-absorbing material onto the surface of the non-light-absorbing yarn, or by mixing and spinning the light-absorbing material and a polymer material, namely directly mixing the light-absorbing material and the polymer material, and then preparing the yarn through a spinning process. By selecting the appropriate light absorbing material and non-light absorbing yarns, warmth, comfort, and durability can be balanced.
The light absorbing material is one of a carbonization tube, graphene, zirconium carbide, polypyrrole and carbon black, the non-light absorbing yarn is one of cotton fiber, wool fiber, silk fiber and regenerated cellulose fiber, and the high polymer material is one of polyurethane, polylactic acid and terylene.
The heat reflection yarn 3 is obtained by modifying the metal surface of natural fiber or chemical fiber, wherein the natural fiber is one of cotton fiber, wool fiber and silk fiber, and the chemical fiber is one of terylene, acrylic fiber and regenerated cellulose fiber. By depositing metal onto the surface of the fibers, the fibers are enabled to reflect thermal radiation, providing an insulating effect. The metal used for surface modification comprises metal simple substance and one of oxide, hydroxide, carbide, nitride and sulfide thereof, wherein the metal simple substance is one of silver, aluminum, copper, gold, nickel, chromium and titanium, and fiber surface modification is realized by means of chemical plating, electroplating, vacuum plating and the like.
The hollow heat insulation material 2 is one of a hollow silicone tube, a polyethylene hollow tube and a polyurethane hollow tube, and the inner diameter of the hollow heat insulation material 2 is preferably 0.4-0.8 mm. By arranging the hollow heat insulation material 2 in the double-layer fabric, the volume of a static air layer is increased, the heat loss is effectively reduced, the hollow tubular structure is beneficial to keeping the air permeability of the fabric, and the heat preservation effect is improved on the premise of not affecting the flexibility of the fabric.
In some specific embodiments, the method for using the light-absorbing material polypyrrole to surface-modify the non-light-absorbing yarn further comprises the steps of placing the non-light-absorbing yarn in a polypyrrole solution for treatment, placing the non-light-absorbing yarn in an ferric chloride solution for stirring treatment, and drying for later use. Specifically, the non-light-absorbing yarn is placed in a polypyrrole solution for 25-35 min, then soaked in an iron chloride solution with the concentration of 5-10% and magnetically stirred for 1.5-2.5 h, and finally dried for 2-3 h at 50-70 ℃ for standby. After the yarns are modified by polypyrrole and ferric chloride, the yarns can absorb light energy better and convert the light energy into heat energy, so that the warm-keeping effect is enhanced.
The textile process is weaving or knitting. The weaving mode is that the heat reflection yarn 3 and the light absorption yarn 1 are used as warp yarns, a binding double-layer structure is adopted, the heat reflection yarn 3, the light absorption yarn 1 and the hollow heat insulation material 2 are woven into a double-sided core filling fabric, the knitting mode is that the heat reflection yarn 3 and the light absorption yarn 1 are used as main yarns, weft knitting mode is adopted, and the hollow heat insulation material 2 is used as core filling yarn for weft lining knitting, so that the double-sided core filling fabric is obtained.
The optical thermal coupling thermal fabric obtained by the method has a structure schematically shown in fig. 1 and a cross-section schematically shown in fig. 2.
The preparation method of the optical thermal coupling thermal fabric provided by the invention is described below with reference to specific examples.
Example 1
Embodiment 1 provides a preparation method of an optical-thermal coupling thermal fabric, which comprises the following steps:
s1, immersing cotton threads in a polypyrrole solution for 30min, then placing the cotton threads in a 5% ferric chloride solution, starting magnetic stirring for 2h, and drying at 60 ℃ for 2h to obtain PPy-FeCl 3 yarns;
S2, using silver-plated yarns and PPy-FeCl 3 yarns as warp yarns, sequentially drafting in areas 1, 5, 2,6, 3, 7, 4 and 8, using silver-plated yarns as warp yarns for surface warp yarns, using PPy-FeCl 3 yarns for inner warp yarns, using a tying double-layer structure for upper machine, interweaving surface warp and silver-plated yarns in the beating-up process, interweaving inner warp and PPy-FeCl 3 yarns, weaving hollow silicone tubes with the inner diameter of 0.5mm after 3mm length, adopting a plain weave stage, then changing into surface-inner tying structure, repeating the operations to finish weaving of double-sided core filling fabric, and obtaining the optical thermal coupling thermal insulation fabric, wherein a section 3D microscopic diagram is shown in figure 3.
Example 2
Embodiment 2 provides a preparation method of an optical-thermal coupling thermal fabric, which comprises the following steps:
S1, immersing cotton threads in a polypyrrole solution for 30min, then placing the cotton threads in a 10% ferric chloride solution, starting magnetic stirring for 2h, and drying at 60 ℃ for 2h to obtain PPy-FeCl 3 yarns;
S2, weaving silver-plated yarns and PPy-FeCl 3 yarns into a double-layer structure with one side being silver-plated yarns and one side being PPy-FeCl 3 yarns by using a weft knitting process, and placing a hollow silicone tube serving as a filling core of weft yarn into the double-layer structure to obtain the optical thermal coupling thermal fabric.
Comparative example 1
Comparative example 1 provides a method for preparing an optical-thermal coupling thermal fabric, which is different from example 1 only in that cotton threads are not treated with polypyrrole and ferric chloride, and other experimental parameters and conditions are basically the same as those of example 1, and are not repeated here.
Comparative example 2
Comparative example 2 provides a method for preparing an optical thermal coupling thermal fabric, which is different from example 1 only in that no hollow silicone tube is added, and other experimental parameters and conditions are substantially the same as those of example 1, and are not described herein.
Comparative example 3
Comparative example 3 is a commercially available Mylar blank sample.
The optical thermal coupling thermal insulation fabric prepared by the method is cut according to the required size and shape, so that the area size of each fabric is ensured to be uniform. As shown in fig. 4, which is a graph of solar absorption spectrum of the optical thermal coupling thermal fabric prepared in example 1 and comparative example 1, it can be seen that the sample prepared in example 1 has an absorption percentage close to 100% and remains relatively stable in the whole wavelength range, which indicates that the sample in example 1 has an extremely high absorption capacity for solar radiation and can effectively absorb heat in solar radiation. This high absorption capacity is related to the specific composition or structure of the sample so that it can maximize the use of solar radiation to provide a thermal effect, while the absorption percentage of the sample of comparative example 1 fluctuates around 50%, indicating that the absorption capacity of the sample of comparative example 1 for solar radiation is relatively low and varies with wavelength, affecting its absorption efficiency for solar radiation.
The thermal insulation performance test is carried out under the condition that the indoor environment temperature is 22 ℃, as shown in fig. 5 to 7, the thermal insulation performance of the thermal coupling thermal insulation fabric and the thermal insulation performance of the comparative example 2 without adding the silica gel tube core filling sample are tested by using 100W, 200W and 300W of power heating bodies respectively, and the result shows that the thermal insulation effect of the thermal insulation fabric with the silica gel tube is higher than that of the thermal insulation fabric without the silica gel tube and is close to 2 ℃, and the thermal insulation performance is excellent.
Fig. 8 shows outdoor thermal insulation data of the thermal insulation fabric provided in example 1 and comparative example 3 on sunny days, and it can be seen that compared with a sample without special treatment of pure cotton and a Mylar fabric sample, the thermal insulation fabric provided in example 1 has temperature differences of more than 10 ℃ and 5 ℃ respectively, which indicates that the thermal insulation effect is remarkable under natural sunlight conditions.
Fig. 9 shows the air permeability test results of the thermal insulation fabric provided in example 1 and comparative example 3, and it can be seen that the optical thermal coupling thermal insulation fabric provided in the application has excellent air permeability compared with the Mylar fabric sample and the pure cotton woven fabric with the same thickness.
Fig. 10 shows the results of the moisture permeability test of the thermal insulation fabric provided in the embodiment 1 and the comparative example 3, and it can be seen that the moisture permeability of the optical thermal coupling thermal insulation fabric provided in the application is similar to that of the pure cotton fabric, which indicates that the fabric provided in the application successfully maintains good moisture permeability while enhancing the thermal insulation performance, and realizes the balance of functionality and comfort.
In summary, the invention adopts double-sided design to overlap optical and thermal coupling, can effectively reflect heat emitted by human body, reduce heat loss, simultaneously absorb external light energy to convert into heat energy, improve thermal insulation effect, and combine hollow heat insulation material 2 to increase the volume of static air layer, further improve thermal insulation effect.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
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| CN202411470855.0A CN119308055A (en) | 2024-10-21 | 2024-10-21 | Optical thermal coupling thermal insulation fabric and preparation method thereof |
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| CN202411470855.0A CN119308055A (en) | 2024-10-21 | 2024-10-21 | Optical thermal coupling thermal insulation fabric and preparation method thereof |
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| CN114654854A (en) * | 2022-04-26 | 2022-06-24 | 斐乐体育有限公司 | A heat-warming fabric |
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| CN117385498A (en) * | 2023-12-07 | 2024-01-12 | 天津包钢稀土研究院有限责任公司 | A rare earth-based high-emission thermal insulation composite fiber and its preparation method |
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2024
- 2024-10-21 CN CN202411470855.0A patent/CN119308055A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101597176B1 (en) * | 2015-11-12 | 2016-02-24 | 주식회사 파인 | Light absorbing-heat emitting fabrics and clothing using the same |
| CN207772538U (en) * | 2017-12-26 | 2018-08-28 | 郑州莱雅实业有限公司 | A kind of thermal-insulating type garment material |
| CN210886738U (en) * | 2019-08-29 | 2020-06-30 | 江苏金太阳纺织科技股份有限公司 | Light-absorbing heat-accumulating long-acting thermal-insulation bedding fabric |
| CN114654854A (en) * | 2022-04-26 | 2022-06-24 | 斐乐体育有限公司 | A heat-warming fabric |
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