Refrigeration and heat preservation sportswear for outdoor sports
By using fluorine-containing resin, fluorinated modified zinc sulfide and urea-modified silicone in the coating of sportswear, combined with the temperature regulation of insulation fabrics, the problem of insufficient cooling and insulation performance of sportswear is solved. , achieving efficient and long-term cooling and thermal insulation effect and comfortable wearing.
Patent Information
- Application Number
- CN202411369372.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2024-12-20
AI Technical Summary
Existing sportswear has limited cooling and insulation performance in outdoor sports, which cannot meet people's needs and increases the weight and complexity of sportswear.
Using refrigeration insulation fabrics, the hydrophobic, self-cleaning and radiation refrigeration properties of the coating are enhanced by using fluorine-containing resins, fluorinated modified zinc sulfide and urea-modified silicones in the coating, and combined with thermal insulation fabrics The temperature control function provides long-term cooling and insulation effect.
It achieves efficient cooling and insulation performance of sportswear, reduces the impact of pollution, extends the service life of clothes, and provides better wearing comfort in different environments.
Smart Images
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of textile materials, and in particular to a cooling and heat-insulating sportswear for outdoor sports. Background Art
[0002] The temperature in spring and autumn is the most pleasant in the four seasons of the year. People only need to wear a thin piece of clothing for outdoor sports. However, the temperature in summer is hot, and people will sweat profusely after a little activity, and it is easy to cause high temperature diseases such as heat stroke. Winter is extremely cold, and people need to wear thick down jackets, which makes outdoor activities inconvenient.
[0003] Existing technologies provide cooling effects by setting up complex structures, such as fans, water storage plates, etc.; while heat preservation requires the placement of heating sheets to provide heat preservation functions. The use of complex modules that achieve cooling and heat preservation functions increases the weight of sportswear. Coated fabrics are widely used in sportswear, down jackets, rainproof parkas, jackets, shoes and socks, curtains, bags, and ski jackets with advanced waterproof and breathable functions. They have excellent properties of windproof, waterproof and breathable. However, the cooling and heat preservation performance of existing coated fabrics is very limited and cannot meet people's needs, so they need to be improved. Summary of the invention
[0004] In order to improve the cooling and heat preservation performance of sportswear, the present application provides a cooling and heat preservation sportswear for outdoor sports.
[0005] The present application provides a cooling and heat-insulating sportswear for outdoor sports using the following technical solution: A cooling and heat-insulating sportswear for outdoor sports is obtained by cutting and sewing a cooling and heat-insulating fabric, wherein the cooling and heat-insulating fabric comprises a heat-insulating fabric and a cooling coating, wherein the cooling coating is obtained by coating a cooling coating, and the raw materials for preparing the cooling coating comprise the following components in parts by mass: 20-30 parts of fluorine resin Fluoride modified zinc sulfide 5-10 parts Urea-modified siloxane 50-60 parts Butyl acetate 100-120 parts.
[0006] Fluorine-containing resins reduce the surface energy of coatings by introducing fluorine elements, improve the anti-adhesion and hydrophobic properties of the coating surface, thereby giving the coating self-cleaning properties, improving the cleanliness of the fabric, and reducing the impact of pollution on the cooling performance of the fabric; fluorinated zinc sulfide improves the super hydrophobicity and dispersibility of zinc sulfide through fluorination modification, and can synergize with fluorinated resins to improve the self-cleaning performance of the coating; zinc sulfide has a good radiation cooling effect, can reflect sunlight, radiate heat to the outside world, and improve the cooling performance of the fabric; urea-modified siloxanes improve the stability and self-healing properties of the coating by introducing urea groups into the siloxane structure, so that sportswear can provide long-term cooling and thermal insulation performance; thermal insulation fabrics can be adjusted according to the ambient temperature, providing a cooler feeling in hot environments, releasing heat and dispelling coolness in severe cold conditions, and can assist the cooling coating to better achieve cooling and thermal insulation performance.
[0007] Preferably, the raw materials for preparing the fluorine-containing resin include methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate.
[0008] The fluorine-containing resin compounded from methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate has excellent weather resistance and hydrophobic and oleophobic properties, which can enable sportswear to maintain its performance during long-term wear and extend the service life of clothing; the hydrophobic and oleophobic properties give clothing a self-cleaning effect, allowing the fabric to better exert its radiant cooling performance; the presence of fluorine can also increase the coating's emissivity to visible light and near-infrared light, thereby improving the cooling and thermal insulation properties of sportswear.
[0009] Preferably, the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate is 1:0.9:(0.2-0.3).
[0010] The fluorine-containing resin prepared according to the above mass ratio has good hydrophobic and oleophobic properties and stability.
[0011] Preferably, the raw materials for preparing the fluorinated modified zinc sulfide include nano zinc sulfide and heptadecafluorodecyltrimethoxysilane.
[0012] Nano zinc sulfide has a high emissivity in the mid-infrared band and can effectively radiate heat in the form of infrared rays to achieve the effect of radiation cooling; nano zinc sulfide can also reflect sunlight, reduce the absorption of heat by sportswear, and enhance the cooling effect; using heptadecafluorodecyltrimethoxysilane to modify nano zinc sulfide can effectively improve the dispersibility and hydrophobicity of nano zinc sulfide, while fluorinated modified zinc sulfide can construct a rough surface structure, improve the super hydrophobicity of the coating, and achieve a good radiation cooling effect.
[0013] Preferably, the mass ratio of the nano zinc sulfide to heptadecafluorodecyltrimethoxysilane is 1:(0.1-0.2).
[0014] The fluorinated modified zinc sulfide prepared according to the above mass ratio has good hydrophobicity and radiation refrigeration performance.
[0015] Preferably, the raw materials for preparing the urea-modified siloxane include amino-terminated polydimethylsiloxane and isophorone diisocyanate.
[0016] The isocyanate group of isophorone diisocyanate can react with the amino group to introduce the urea structure into the siloxane structure. The hydrogen bonds in the urea structure can be rearranged when damaged. The urea structure can also achieve self-repair by forming dynamic covalent bonds, thereby improving the stability and durability of the refrigeration coating.
[0017] Preferably, the preparation method of the urea-modified siloxane adopts the following steps: Amino-terminated polydimethylsiloxane is dissolved in tetrahydrofuran, and the mixture is stirred evenly to obtain a siloxane solution. Isophorone diisocyanate is added to the siloxane solution, and after stirring for reaction, the solvent is removed by rotary evaporation to obtain urea-modified siloxane.
[0018] Preferably, the raw materials for preparing the thermal insulation fabric include pretreated nylon-spandex fabric and thermal insulation finishing liquid.
[0019] By pre-treating the nylon-spandex fabric, the surface active groups of the fabric can be increased, which is beneficial to the subsequent thermal insulation finishing; the thermal insulation finishing liquid improves the thermal insulation performance of the nylon-spandex fabric through post-finishing.
[0020] Preferably, the pretreated nylon-spandex fabric comprises a quaternary ammonium salt modifier and nylon-spandex fabric.
[0021] The quaternary ammonium salt modifier is used to modify the nylon-spandex fabric, which can make the fabric positively charged, which is beneficial for the adhesion of substances in the subsequent thermal insulation finishing liquid, improves the wash fastness of the fabric after finishing, and thus improves the thermal insulation performance of the fabric.
[0022] Preferably, the heat-insulating finishing liquid comprises phase-change microcapsules, thermochromic microcapsules and dopamine hydrochloride.
[0023] Phase change microcapsules undergo phase transitions by absorbing and releasing heat. They can regulate the temperature of fabrics in high and low temperature environments, improve the thermal insulation performance of fabrics, and thus improve the wearing comfort of sportswear in extreme environments; thermochromic microcapsules have thermochromic properties and can change color according to changes in temperature, switching between reflecting and absorbing sunlight, achieving radiation cooling in high temperature environments and solar heating in low temperature environments, thereby improving the thermal insulation performance of fabrics.
[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Fluorine-containing resin reduces the surface energy of the coating by introducing fluorine elements, improves the anti-adhesion and hydrophobic properties of the coating surface, thereby giving the coating self-cleaning properties, improving the cleanliness of the fabric, and reducing the impact of pollution on the cooling performance of the fabric; fluorinated zinc sulfide improves the super hydrophobicity and dispersibility of zinc sulfide through fluorination modification, and can synergize with fluorinated resin to improve the self-cleaning performance of the coating; zinc sulfide has a good radiation cooling effect, can reflect sunlight, radiate heat to the outside world, and improve the cooling performance of the fabric; urea-modified siloxane improves the stability and self-healing properties of the coating by introducing urea groups into the siloxane structure, so that sportswear can provide long-term cooling and thermal insulation performance; thermal insulation fabrics can be regulated according to the ambient temperature, providing a cooler feeling in a hot environment, releasing heat and dispelling coolness in severe cold conditions, and can assist the cooling coating to better achieve cooling and thermal insulation performance.
[0025] 2. Nano zinc sulfide has a high emissivity in the mid-infrared band and can effectively radiate heat in the form of infrared rays to achieve the effect of radiation cooling; nano zinc sulfide can also reflect sunlight, reduce the absorption of heat by sportswear, and enhance the cooling effect; using heptadecafluorodecyltrimethoxysilane to modify nano zinc sulfide can effectively improve the dispersibility and hydrophobicity of nano zinc sulfide, while fluorinated modified zinc sulfide can construct a rough surface structure, improve the super hydrophobicity of the coating, and achieve a good radiation cooling effect.
[0026] 3. Phase change microcapsules undergo phase change by absorbing and releasing heat, which can regulate the temperature of fabrics in high and low temperature environments, improve the thermal insulation performance of fabrics, and thus improve the wearing comfort of sportswear in extreme environments; thermochromic microcapsules have thermochromic properties, can change color according to changes in temperature, switch between reflecting and absorbing sunlight, achieve radiation cooling in high temperature environments and solar heating in low temperature environments, and improve the thermal insulation performance of fabrics. DETAILED DESCRIPTION
[0027] The present application discloses a cooling and heat-insulating sportswear for outdoor sports. The raw materials used in the present application can be obtained from commercially available raw materials unless otherwise specified. The present application is further described in detail below in conjunction with the embodiments: Raw material description: In the embodiment of the present application, the color of the nylon spandex fabric is red, methyl methacrylate (CAS No.: 80-62-6), hydroxyethyl methacrylate (CAS No.: 868-77-9), perfluoropropyl methacrylate (CAS No.: 45115-53-5), azobisisobutyronitrile (CAS No.: 78-67-1), nano zinc sulfide purchased from Hongzhi New Materials Co., Ltd., heptadecafluorodecyltrimethoxysilane (CAS No.: 83048-65-1), amino-terminated polydimethylsilane Siloxane (CAS No.: 99904-16-2), isophorone diisocyanate (CAS No.: 4098-71-9), quaternary ammonium salt modifier is polyquaternium-7 (CAS No.: 26590-05-6), phase change microcapsules and thermochromic microcapsules were purchased from Hefei Ruixue New Material Technology Co., Ltd., dopamine hydrochloride (CAS No.: 62-31-7), acrylic resin (CAS No.: 9003-01-4), polydimethylsiloxane (CAS No.: 9006-65-9).
[0028] Example 1 Preparation of fluorine-containing resin: Under nitrogen atmosphere protection, 100 kg of ethyl acetate was heated to 80°C, 23.81 kg of methyl methacrylate, 21.43 kg of hydroxyethyl methacrylate and 4.76 kg of perfluoropropyl methacrylate were dispersed in ethyl acetate solution to obtain a monomer solution; 1.2 kg of azobisisobutyronitrile was dispersed in 10 kg of ethyl acetate to obtain an initiator solution, the initiator solution was added to the monomer solution within 1 hour, the reaction was kept at 80°C for 2 hours, 0.5 kg of azobisisobutyronitrile was added, the reaction was continued for 4 hours, and the solvent was removed by rotary evaporation to obtain a fluorine-containing resin.
[0029] Preparation of fluorinated zinc sulfide 18.18 kg of nano zinc sulfide and 1.82 kg of heptadecafluorodecyltrimethoxysilane were mixed and dispersed in 50 L of anhydrous ethanol to obtain a mixed dispersion, 0.5 L of deionized water was added to the mixed dispersion, and the mixture was stirred and reacted at 50° C. for 2 h to obtain fluorinated modified zinc sulfide.
[0030] Preparation of urea-modified siloxane 94.5 kg of amino-terminated polydimethylsiloxane was dissolved in 300 kg of tetrahydrofuran, and the mixture was stirred at 200 rpm for 1 hour to obtain a siloxane solution. 5.5 kg of isophorone diisocyanate was added to the siloxane solution, and after stirring for 8 hours, the solvent was removed by rotary evaporation to obtain urea-modified siloxane.
[0031] Preparation of refrigeration coatings 20 kg of fluorine-containing resin, 5 kg of fluorinated modified zinc sulfide and 50 kg of urea-modified siloxane were mixed and dispersed in 100 kg of butyl acetate, ultrasonicated for 15 minutes, and stirred at a speed of 500 rpm for 30 minutes to obtain a refrigeration coating.
[0032] Preparation of thermal insulation fabrics Dissolve 20 kg of sodium hydroxide in 20 L of deionized water to obtain an alkaline solution, add 20 kg of quaternary ammonium salt modifier to the alkaline solution, add 40 kg of deionized water after mixing to obtain a fabric modification liquid, immerse the nylon-spandex fabric in the fabric modification liquid with a bath ratio of 1:20, take out after immersion for 6 hours, wash with water and dry to obtain a pretreated nylon-spandex blended fabric.
[0033] 5 kg of phase change microcapsules, 5 kg of thermochromic microcapsules and 10 kg of dopamine hydrochloride were mixed and dispersed in 100 L of 0.01 mol / L Tris-HCl buffer with a pH value of 8.5, and stirred at a speed of 500 rpm for 0.5 h to obtain a heat preservation finishing solution.
[0034] The pretreated nylon-spandex blended fabric was immersed in the thermal insulation finishing solution, oscillated and stirred at a frequency of 60 Hz for 4 hours, and double-immersed and double-rolled to obtain the thermal insulation fabric.
[0035] Preparation of cooling and heat-insulating sportswear The refrigeration coating and the curing agent are mixed in a ratio of 20:1, and the mixture is applied to the surface of the refrigeration thermal insulation fabric. After drying at 60°C for 4 hours, the refrigeration thermal insulation fabric is obtained. The refrigeration thermal insulation fabric is cut and sewn to obtain refrigeration thermal insulation sportswear.
[0036] Example 2 Preparation of fluorine-containing resin: Under nitrogen atmosphere protection, 100 kg of ethyl acetate was heated to 80°C, 22.73 kg of methyl methacrylate, 20.45 kg of hydroxyethyl methacrylate and 6.82 kg of perfluoropropyl methacrylate were dispersed in ethyl acetate solution to obtain a monomer solution; 1.2 kg of azobisisobutyronitrile was dispersed in 10 kg of ethyl acetate to obtain an initiator solution, the initiator solution was added to the monomer solution within 1 hour, the reaction was kept at 80°C for 2 hours, 0.5 kg of azobisisobutyronitrile was added, the reaction was continued for 4 hours, and the solvent was removed by rotary evaporation to obtain a fluorine-containing resin.
[0037] Preparation of fluorinated zinc sulfide 16.67 kg of nano zinc sulfide and 3.33 kg of heptadecafluorodecyltrimethoxysilane were mixed and dispersed in 50 L of anhydrous ethanol to obtain a mixed dispersion, 0.5 L of deionized water was added to the mixed dispersion, and the mixture was stirred and reacted at 50° C. for 2 h to obtain fluorinated modified zinc sulfide.
[0038] Preparation of urea-modified siloxane 94.5 kg of amino-terminated polydimethylsiloxane was dissolved in 300 kg of tetrahydrofuran, and the mixture was stirred at 200 rpm for 1 hour to obtain a siloxane solution. 5.5 kg of isophorone diisocyanate was added to the siloxane solution, and after stirring for 8 hours, the solvent was removed by rotary evaporation to obtain urea-modified siloxane.
[0039] Preparation of refrigeration coatings 30 kg of fluorine-containing resin, 10 kg of fluorinated modified zinc sulfide and 60 kg of urea-modified siloxane were mixed and dispersed in 120 kg of butyl acetate, and after ultrasonication for 15 minutes, the mixture was stirred at a speed of 500 rpm for 30 minutes to obtain a refrigeration coating.
[0040] Preparation of thermal insulation fabrics Dissolve 20 kg of sodium hydroxide in 20 L of deionized water to obtain an alkaline solution, add 20 kg of quaternary ammonium salt modifier to the alkaline solution, add 40 kg of deionized water after mixing to obtain a fabric modification liquid, immerse the nylon-spandex fabric in the fabric modification liquid with a bath ratio of 1:20, take out after immersion for 6 hours, wash with water and dry to obtain a pretreated nylon-spandex blended fabric.
[0041] 5 kg of phase change microcapsules, 5 kg of thermochromic microcapsules and 10 kg of dopamine hydrochloride were mixed and dispersed in 100 L of 0.01 mol / L Tris-HCl buffer with a pH value of 8.5, and stirred at a speed of 500 rpm for 0.5 h to obtain a heat preservation finishing solution.
[0042] The pretreated nylon-spandex blended fabric was immersed in the thermal insulation finishing solution, oscillated and stirred at a frequency of 60 Hz for 4 hours, and double-immersed and double-rolled to obtain the thermal insulation fabric.
[0043] Preparation of cooling and heat-insulating sportswear The refrigeration coating and the curing agent are mixed in a ratio of 20:1, and the mixture is applied to the surface of the refrigeration thermal insulation fabric. After drying at 60°C for 4 hours, the refrigeration thermal insulation fabric is obtained. The refrigeration thermal insulation fabric is cut and sewn to obtain refrigeration thermal insulation sportswear.
[0044] Example 3 Preparation of fluorine-containing resin: Under nitrogen atmosphere protection, 100 kg of ethyl acetate was heated to 80°C, 23.26 kg of methyl methacrylate, 20.93 kg of hydroxyethyl methacrylate and 5.81 kg of perfluoropropyl methacrylate were dispersed in ethyl acetate solution to obtain a monomer solution; 1.2 kg of azobisisobutyronitrile was dispersed in 10 kg of ethyl acetate to obtain an initiator solution, the initiator solution was added to the monomer solution within 1 hour, the reaction was kept at 80°C for 2 hours, 0.5 kg of azobisisobutyronitrile was added, the reaction was continued for 4 hours, and the solvent was removed by rotary evaporation to obtain a fluorine-containing resin.
[0045] Preparation of fluorinated zinc sulfide 17.39 kg of nano zinc sulfide and 2.61 kg of heptadecafluorodecyltrimethoxysilane were mixed and dispersed in 50 L of anhydrous ethanol to obtain a mixed dispersion, 0.5 L of deionized water was added to the mixed dispersion, and the mixture was stirred and reacted at 50° C. for 2 h to obtain fluorinated modified zinc sulfide.
[0046] Preparation of urea-modified siloxane 94.5 kg of amino-terminated polydimethylsiloxane was dissolved in 300 kg of tetrahydrofuran, and the mixture was stirred at 200 rpm for 1 hour to obtain a siloxane solution. 5.5 kg of isophorone diisocyanate was added to the siloxane solution, and after stirring for 8 hours, the solvent was removed by rotary evaporation to obtain urea-modified siloxane.
[0047] Preparation of refrigeration coatings 25 kg of fluorine-containing resin, 7.5 kg of fluorinated modified zinc sulfide and 55 kg of urea-modified siloxane were mixed and dispersed in 110 kg of butyl acetate, and after ultrasonication for 15 minutes, the mixture was stirred at a speed of 500 rpm for 30 minutes to obtain a refrigeration coating.
[0048] Preparation of thermal insulation fabrics Dissolve 20 kg of sodium hydroxide in 20 L of deionized water to obtain an alkaline solution, add 20 kg of quaternary ammonium salt modifier to the alkaline solution, add 40 kg of deionized water after mixing to obtain a fabric modification liquid, immerse the nylon-spandex fabric in the fabric modification liquid with a bath ratio of 1:20, take out after immersion for 6 hours, wash with water and dry to obtain a pretreated nylon-spandex blended fabric.
[0049] 5 kg of phase change microcapsules, 5 kg of thermochromic microcapsules and 10 kg of dopamine hydrochloride were mixed and dispersed in 100 L of 0.01 mol / L Tris-HCl buffer with a pH value of 8.5, and stirred at a speed of 500 rpm for 0.5 h to obtain a heat preservation finishing solution.
[0050] The pretreated nylon-spandex blended fabric was immersed in the thermal insulation finishing solution, oscillated and stirred at a frequency of 60 Hz for 4 hours, and double-immersed and double-rolled to obtain the thermal insulation fabric.
[0051] Preparation of cooling and heat-insulating sportswear The refrigeration coating and the curing agent are mixed in a ratio of 20:1, and the mixture is applied to the surface of the refrigeration thermal insulation fabric. After drying at 60°C for 4 hours, the refrigeration thermal insulation fabric is obtained. The refrigeration thermal insulation fabric is cut and sewn to obtain refrigeration thermal insulation sportswear.
[0052] Example 4 Example 4 is based on Example 3. The only difference between Example 4 and Example 3 is that in Example 4, the amount of methyl methacrylate used is 24.39 kg, the amount of hydroxyethyl methacrylate used is 21.95 kg, and the amount of perfluoropropyl methacrylate used is 3.66 kg.
[0053] Example 5 Example 5 is based on Example 3. The only difference between Example 5 and Example 3 is that in Example 5, the amount of methyl methacrylate used is 22.22 kg, the amount of hydroxyethyl methacrylate used is 20 kg, and the amount of perfluoropropyl methacrylate used is 7.78 kg.
[0054] Example 6 Example 6 is based on Example 3. The only difference between Example 6 and Example 3 is that in Example 6, the amount of nano zinc sulfide used is 19.05 kg, and the amount of heptadecafluorodecyltrimethoxysilane used is 0.95 kg.
[0055] Example 7 Example 7 is based on Example 3. The only difference between Example 7 and Example 3 is that in Example 7, the amount of nano zinc sulfide used is 16 kg, and the amount of heptadecafluorodecyltrimethoxysilane used is 4 kg.
[0056] Example 8 Example 8 is based on Example 3. The only difference between Example 8 and Example 3 is that in Example 8, the pretreated nylon-spandex fabric is replaced with nylon-spandex fabric when preparing the thermal insulation fabric.
[0057] Example 9 Example 9 is based on Example 3. The only difference between Example 9 and Example 3 is that in Example 9, when preparing the thermal insulation fabric, no phase change microcapsules are added to the thermal insulation finishing liquid.
[0058] Example 10 Example 10 is based on Example 3. The only difference between Example 10 and Example 3 is that when preparing the thermal insulation fabric in Example 10, no thermochromic microcapsules are added to the thermal insulation finishing liquid.
[0059] Embodiment 11 Example 11 is based on Example 3. The only difference between Example 11 and Example 3 is that dopamine hydrochloride is not added to the thermal insulation finishing liquid when preparing the thermal insulation fabric in Example 11.
[0060] Comparative Example 1 Comparative Example 1 is based on Example 3, and the only difference between Comparative Example 1 and Example 3 is that in Comparative Example 1, the fluorine-containing resin is replaced by acrylic resin.
[0061] Comparative Example 2 Comparative Example 2 is based on Example 3, and the only difference between Comparative Example 2 and Example 3 is that in Comparative Example 2, the fluorinated modified zinc sulfide is replaced by nano zinc sulfide.
[0062] Comparative Example 3 Comparative Example 3 is based on Example 3, and the only difference between Comparative Example 3 and Example 3 is that in Comparative Example 3, urea-modified siloxane is replaced by polydimethylsiloxane.
[0063] Comparative Example 4 Comparative Example 4 is based on Example 3, and the only difference between Comparative Example 4 and Example 3 is that the thermal insulation fabric is replaced by nylon-spandex fabric in Comparative Example 4.
[0064] Performance testing (1) GB / T 30127-2013 Testing and evaluation of far-infrared properties of textiles was selected as the standard to test the far-infrared emissivity of the samples. Each sample was tested three times and the average value was taken after measurement. The results are recorded in Table 1.
[0065] (2) Visible light and near-infrared light reflectivity test: The test was performed using an integrating sphere mode of a UV-visible-near-infrared spectrophotometer with a test wavelength of 400-2000 nm. The reflectivity of visible light and near-infrared light was calculated. Each sample was tested three times and the average value was taken after measurement. The results are recorded in Table 1.
[0066] (3) Refrigeration and thermal insulation performance test: The refrigeration and thermal insulation performance of sportswear was tested under the conditions of 38°C and 30% humidity and 18°C and 40% humidity in a simulated sunlight environment. A thermocouple multi-channel temperature measuring instrument was used to record the changes in temperature. Each sample was tested three times and the average value was taken after measurement. The results are recorded in Table 1.
[0067] Table 1 Test results of cooling performance and thermal insulation performance of sportswear It can be seen from Table 1 that the far-infrared emissivity of Examples 1-3 is greater than 0.92, the visible light and near-infrared light reflectivity is greater than 91%, the temperature drop in a high temperature environment is greater than 4.6°C, and the temperature drop in a low temperature environment is greater than 2.8°C. It can be seen that the sportswear prepared in the present application has good cooling and thermal insulation properties.
[0068] As can be seen from Table 1, the only difference between Examples 4 and 5 and Example 3 is that in Example 4, the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate is 1:0.9:0.15, and in Example 5, the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate is 1:0.9:0.35. Compared with Example 3, the refrigeration performance and thermal insulation performance of Examples 4 and 5 are reduced; this is because the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate is not within the specified range, and too much or too little perfluoropropyl methacrylate will affect the surface energy, stability and adhesion properties of the fluorine-containing resin, thereby affecting the bonding strength of the refrigeration coating and the fabric. Therefore, the refrigeration and thermal insulation performance of the sportswear is reduced.
[0069] As can be seen from Table 1, the only difference between Examples 6 and 7 and Example 3 is that the mass ratio of nano zinc sulfide and heptadecafluorodecyltrimethoxysilane in Example 6 is 1:0.05, and the mass ratio of nano zinc sulfide and heptadecafluorodecyltrimethoxysilane in Example 7 is 1:0.25. Compared with Example 3, the refrigeration performance and thermal insulation performance of Examples 6 and 7 are reduced; this is because the mass ratio of nano zinc sulfide and heptadecafluorodecyltrimethoxysilane is not within the specified range, and too much or too little heptadecafluorodecyltrimethoxysilane will affect the dispersibility and hydrophobicity of the fluorinated modified zinc sulfide, making the fluorinated modified zinc sulfide easy to agglomerate, and the dispersibility in the coating becomes worse, which affects the construction of the hydrophobic rough surface and the reflection of sunlight, thereby reducing the refrigeration performance and thermal insulation performance of the sportswear.
[0070] As can be seen from Table 1, the only differences between Examples 8, 9, 10, and 11 and Example 3 are that: in Example 8, the pretreated nylon spandex fabric is replaced with nylon spandex fabric when preparing the thermal insulation fabric, in Example 9, no phase change microcapsules are added to the thermal insulation finishing liquid when preparing the thermal insulation fabric, in Example 10, no thermochromic microcapsules are added to the thermal insulation finishing liquid when preparing the thermal insulation fabric, and in Example 11, no dopamine hydrochloride is added to the thermal insulation finishing liquid when preparing the thermal insulation fabric. Compared with Example 3, Examples 8, 9, 10, and 11 have better refrigeration performance and thermal insulation performance. The thermal performance of the sportswear has declined; this is because the finishing process of the thermal insulation fabric and the components of the finishing liquid have been replaced and deleted, and the pretreatment step and the addition of dopamine are lacking, the bonding strength of the phase change microcapsules and thermochromic microcapsules has declined, which in turn affects their performance; without adding phase change microcapsules or thermochromic microcapsules, the phase change temperature regulation performance and thermochromic performance of the fabric will be greatly reduced, which will affect the temperature regulation of the fabric in different environments, thereby reducing the cooling performance and thermal insulation performance of the sportswear.
[0071] It can be seen from Table 1 that the only difference between Comparative Example 1 and Example 3 is that the fluorine-containing resin is replaced by acrylic resin in Comparative Example 1. Compared with Example 3, the refrigeration performance and thermal insulation performance of Comparative Example 1 are reduced. This is because the fluorine-containing resin is replaced by acrylic resin, and the acrylic resin lacks the introduction of fluorine element, and the surface energy is increased, which affects the reflectivity of sunlight and the emissivity of far infrared, thereby affecting its refrigeration performance and thermal insulation performance.
[0072] It can be seen from Table 1 that the only difference between Comparative Example 2 and Example 3 is that: Comparative Example 2 replaces the fluorinated modified zinc sulfide with nano zinc sulfide. Compared with Example 3, the refrigeration performance and thermal insulation performance of Comparative Example 2 are greatly reduced; this is because the fluorinated modified zinc sulfide is replaced with nano zinc sulfide; nano zinc sulfide lacks modification treatment, the dispersion performance is greatly reduced, and it is easy to agglomerate, which further affects the radiation refrigeration performance and thermal insulation performance of the coating, thereby reducing the refrigeration performance and thermal insulation performance of the sportswear.
[0073] It can be seen from Table 1 that the only difference between Comparative Example 3 and Example 3 is that: in Comparative Example 3, urea-modified siloxane is replaced with polydimethylsiloxane. Compared with Example 3, the cooling and thermal insulation performance of Comparative Example 3 is reduced; this is because urea-modified siloxane is replaced with polydimethylsiloxane, and the polydimethylsiloxane lacks modification treatment, and its stability is reduced, which in turn affects the cooling and thermal insulation performance of the sportswear.
[0074] It can be seen from Table 1 that the only difference between Comparative Example 4 and Example 3 is that the thermal insulation fabric in Comparative Example 4 is replaced with nylon-spandex fabric. Compared with Example 3, the refrigeration performance and the thermal insulation performance of Comparative Example 4 are greatly reduced; this is because the thermal insulation fabric is replaced with unfinished nylon-spandex fabric, lacking the modification treatment of phase change microcapsules and thermochromic microcapsules, and the sportswear's ability to regulate heat absorption and radiation is reduced, thereby greatly reducing the refrigeration performance and the thermal insulation performance.
[0075] This specific embodiment is only an explanation of the present application, and it is not a limitation of the present application. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A cooling and heat-insulating sportswear for outdoor sports, characterized by: The refrigeration and thermal insulation fabric is cut and sewn, the refrigeration and thermal insulation fabric includes a thermal insulation fabric and a refrigeration coating, the refrigeration coating is obtained by coating a refrigeration coating, and the raw materials for preparing the refrigeration coating include the following components in parts by mass: 20-30 parts of fluorine resin Fluoride modified zinc sulfide 5-10 parts Urea-modified siloxane 50-60 parts Butyl acetate 100-120 parts.
2. The cooling and heat-insulating sportswear for outdoor sports according to claim 1, characterized in that: The raw materials for preparing the fluorine-containing resin include methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate.
3. The cooling and heat-insulating sportswear for outdoor sports according to claim 2, characterized in that: The mass ratio of methyl methacrylate, hydroxyethyl methacrylate and perfluoropropyl methacrylate is 1:0.9:(0.2-0.3).
4. The cooling and heat-insulating sportswear for outdoor sports according to claim 1, characterized in that: The raw materials for preparing the fluorinated modified zinc sulfide include nano zinc sulfide and heptadecafluorodecyltrimethoxysilane.
5. The cooling and heat-insulating sportswear for outdoor sports according to claim 4, characterized in that: The mass ratio of the nano zinc sulfide to heptadecafluorodecyltrimethoxysilane is 1:(0.1-0.2).
6. The cooling and heat-insulating sportswear for outdoor sports according to claim 1, characterized in that: The raw materials for preparing the urea-modified siloxane include amino-terminated polydimethylsiloxane and isophorone diisocyanate.
7. The cooling and heat-insulating sportswear for outdoor sports according to claim 6, characterized in that: The preparation method of the urea-modified siloxane adopts the following steps: Amino-terminated polydimethylsiloxane is dissolved in tetrahydrofuran, and the mixture is stirred evenly to obtain a siloxane solution. Isophorone diisocyanate is added to the siloxane solution, and after stirring for reaction, the solvent is removed by rotary evaporation to obtain urea-modified siloxane.
8. The cooling and heat-insulating sportswear for outdoor sports according to claim 1, characterized in that: The raw materials for preparing the thermal insulation fabric include pretreated nylon-spandex fabric and thermal insulation finishing liquid.
9. The cooling and heat-insulating sportswear for outdoor sports according to claim 8, characterized in that: The pretreated nylon-spandex fabric comprises a quaternary ammonium salt modifier and nylon-spandex fabric.
10. The cooling and heat-insulating sportswear for outdoor sports according to claim 9, characterized in that: The heat preservation finishing liquid comprises phase change microcapsules, thermochromic microcapsules and dopamine hydrochloride.