{"title":"制备具有优异辐射冷却功能的隔热海藻酸钠/二氧化硅复合气凝胶，用于消防服","authors":"Qing Jiang, Yuhang Wan, Xiaoqian Li, Xueru Qu, Shengnan Ouyang, Yi Qin, Zhenyu Zhu, Yushu Wang, Hualing He, Zhicai Yu","doi":"10.1108/prt-11-2023-0102","DOIUrl":null,"url":null,"abstract":"<h3>Purpose</h3>\n<p>This study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO<sub>2</sub> and its radiative cooling effect on firefighting clothing without environmental pollution.</p><!--/ Abstract__block -->\n<h3>Design/methodology/approach</h3>\n<p>SA/SiO<sub>2</sub> aerogel with refractory heat insulation and enhanced radiative cooling performance was fabricated by freeze-drying method, which can be used in firefighting clothing. The microstructure, chemical composition, thermal stability, and thermal emissivity were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analyzer and infrared emissivity measurement instrument. The radiative cooling effect of aerogel was studied using thermal infrared imager and thermocouple.</p><!--/ Abstract__block -->\n<h3>Findings</h3>\n<p>When the addition of SiO<sub>2</sub> is 25% of SA, the prepared aerogel has excellent heat insulation and a high radiative cooling effect. Under a clear sky, the temperature of SA/SiO<sub>2</sub> aerogel is 9.4°C lower than that of pure SA aerogel and 22.1°C lower than that of the simulated environment. In addition, aerogel has more exceptional heat insulation effect than other common fabrics in the heat insulation performance test.</p><!--/ Abstract__block -->\n<h3>Research limitations/implications</h3>\n<p>SA/SiO<sub>2</sub> aerogel has passive radiative cooling function, which can efficaciously economize global energy, and it is paramount to environment-friendly cooling.</p><!--/ Abstract__block -->\n<h3>Practical implications</h3>\n<p>This method could pave the way for high-performance cooling materials designed for firefighting clothing to keep maintain the wearing comfort of firefighters.</p><!--/ Abstract__block -->\n<h3>Originality/value</h3>\n<p>SA/SiO<sub>2</sub> aerogel used in firefighting clothing can release heat to the low-temperature outer space in the form of thermal radiation to achieve its own cooling purpose, without additional energy supply.</p><!--/ Abstract__block -->\n<h3>Graphical abstract</h3>\n<p> </p><!--/ Abstract__block -->","PeriodicalId":20214,"journal":{"name":"Pigment & Resin Technology","volume":"39 1","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fabrication of thermal insulation sodium alginate/SiO2 composite aerogel with superior radiative cooling function for firefighting clothing\",\"authors\":\"Qing Jiang, Yuhang Wan, Xiaoqian Li, Xueru Qu, Shengnan Ouyang, Yi Qin, Zhenyu Zhu, Yushu Wang, Hualing He, Zhicai Yu\",\"doi\":\"10.1108/prt-11-2023-0102\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Purpose</h3>\\n<p>This study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO<sub>2</sub> and its radiative cooling effect on firefighting clothing without environmental pollution.</p><!--/ Abstract__block -->\\n<h3>Design/methodology/approach</h3>\\n<p>SA/SiO<sub>2</sub> aerogel with refractory heat insulation and enhanced radiative cooling performance was fabricated by freeze-drying method, which can be used in firefighting clothing. The microstructure, chemical composition, thermal stability, and thermal emissivity were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analyzer and infrared emissivity measurement instrument. The radiative cooling effect of aerogel was studied using thermal infrared imager and thermocouple.</p><!--/ Abstract__block -->\\n<h3>Findings</h3>\\n<p>When the addition of SiO<sub>2</sub> is 25% of SA, the prepared aerogel has excellent heat insulation and a high radiative cooling effect. Under a clear sky, the temperature of SA/SiO<sub>2</sub> aerogel is 9.4°C lower than that of pure SA aerogel and 22.1°C lower than that of the simulated environment. In addition, aerogel has more exceptional heat insulation effect than other common fabrics in the heat insulation performance test.</p><!--/ Abstract__block -->\\n<h3>Research limitations/implications</h3>\\n<p>SA/SiO<sub>2</sub> aerogel has passive radiative cooling function, which can efficaciously economize global energy, and it is paramount to environment-friendly cooling.</p><!--/ Abstract__block -->\\n<h3>Practical implications</h3>\\n<p>This method could pave the way for high-performance cooling materials designed for firefighting clothing to keep maintain the wearing comfort of firefighters.</p><!--/ Abstract__block -->\\n<h3>Originality/value</h3>\\n<p>SA/SiO<sub>2</sub> aerogel used in firefighting clothing can release heat to the low-temperature outer space in the form of thermal radiation to achieve its own cooling purpose, without additional energy supply.</p><!--/ Abstract__block -->\\n<h3>Graphical abstract</h3>\\n<p> </p><!--/ Abstract__block -->\",\"PeriodicalId\":20214,\"journal\":{\"name\":\"Pigment & Resin Technology\",\"volume\":\"39 1\",\"pages\":\"\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-01-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Pigment & Resin Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1108/prt-11-2023-0102\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pigment & Resin Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1108/prt-11-2023-0102","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
摘要
本研究旨在评估附着在纳米二氧化硅上的海藻酸钠（SA）气凝胶的热性能及其在无环境污染的消防服上的辐射冷却效果。利用傅立叶变换红外光谱仪、扫描电子显微镜、热重分析仪和红外发射率测量仪分析了气凝胶的微观结构、化学成分、热稳定性和热发射率。当二氧化硅的添加量为 SA 的 25% 时，所制备的气凝胶具有良好的隔热性能和较高的辐射冷却效果。在晴朗的天空下，SA/SiO2 气凝胶的温度比纯 SA 气凝胶低 9.4°C，比模拟环境温度低 22.1°C。研究局限/意义SA/SiO2 气凝胶具有被动辐射降温功能，能有效节约全球能源，对环境友好型降温至关重要。独创性/价值SA/SiO2 气凝胶用于消防服，能以热辐射的形式向低温外层空间释放热量，达到自身降温的目的，无需额外的能源供应。
Fabrication of thermal insulation sodium alginate/SiO2 composite aerogel with superior radiative cooling function for firefighting clothing
Purpose
This study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO2 and its radiative cooling effect on firefighting clothing without environmental pollution.
Design/methodology/approach
SA/SiO2 aerogel with refractory heat insulation and enhanced radiative cooling performance was fabricated by freeze-drying method, which can be used in firefighting clothing. The microstructure, chemical composition, thermal stability, and thermal emissivity were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analyzer and infrared emissivity measurement instrument. The radiative cooling effect of aerogel was studied using thermal infrared imager and thermocouple.
Findings
When the addition of SiO2 is 25% of SA, the prepared aerogel has excellent heat insulation and a high radiative cooling effect. Under a clear sky, the temperature of SA/SiO2 aerogel is 9.4°C lower than that of pure SA aerogel and 22.1°C lower than that of the simulated environment. In addition, aerogel has more exceptional heat insulation effect than other common fabrics in the heat insulation performance test.
Research limitations/implications
SA/SiO2 aerogel has passive radiative cooling function, which can efficaciously economize global energy, and it is paramount to environment-friendly cooling.
Practical implications
This method could pave the way for high-performance cooling materials designed for firefighting clothing to keep maintain the wearing comfort of firefighters.
Originality/value
SA/SiO2 aerogel used in firefighting clothing can release heat to the low-temperature outer space in the form of thermal radiation to achieve its own cooling purpose, without additional energy supply.
期刊介绍：
The journal looks at developments in: ■Adhesives and sealants ■Curing and coatings ■Wood coatings and preservatives ■Environmentally compliant coating systems and pigments ■Inks for food packaging ■Manufacturing machinery - reactors, mills mixing and dispersing equipment, pumps ■Packaging, labeling and storage ■Plus topical features and news on materials, coatings, industry people, conferences, books and so on ■Raw materials such as pigments, solvents, resins and chemicals ■Testing equipment and procedures
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