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具有可调热传导效率的取向片层PEG基纳米复合材料用于高效大气集水（英文）

Science China Materials 2025年第1期 244-252页

作者：马艳艳李继丰丁涛封其春杜兆芳 anhui province joint key laboratory of cold insulation fiber and clothing Anhui Provincial Engineering Center for Automotive Highly Functional Fiber Products School of Materials and Chemistry Anhui Agricultural University Institute of Intelligent Machines Hefei Institutes of Physical Science Chinese Academy of Sciences

失水速率是衡量材料大气集水（AWH）性能的重要因素.然而,大多数吸湿盐和凝胶具有固定的热传输速率,限制了高性能AWH材料的发展.本文提出了一种传热效率可调的各向异性材料,以聚乙二醇（PEG）、壳聚糖（CS）溶液和三聚氰胺泡沫（MF）为...

失水速率是衡量材料大气集水（AWH）性能的重要因素.然而,大多数吸湿盐和凝胶具有固定的热传输速率,限制了高性能AWH材料的发展.本文提出了一种传热效率可调的各向异性材料,以聚乙二醇（PEG）、壳聚糖（CS）溶液和三聚氰胺泡沫（MF）为原料,采用冷冻取向法合成PEG/CS/MF纳米复合材料（APCM）.氢键驱动PEG/CS层状结构稳定的分散在MF骨架中,并赋予APCM优异的机械性能. APCM的层状间隙使得其能够在室温下快速吸收大气中的水分子而不泄漏(61.79 kg m-3).此外,取向层状结构还赋予了APCM在压缩状态下高效传热和释放所吸收的水分子的能力.作为概念验证演示,每立方米APCM可在24小时内实现3次AWH循环,并生产超过185 kg的液态水.因此,这种创新的结构设计能够提高AWH的效率,并有望为干旱地区的水资源短缺问题提供可行路径.

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Constructing Anisotropic Conductive Networks inside Hollow Elastic fiber with High Sensitivity and Wide‑Range Linearity by Cryo‑spun Drying Strategy

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Advanced fiber Materials 2024年第6期6卷 1898-1909页

作者： Along Zheng Kening Wan Yuwen Huang Yanyan Ma Tao Ding Yong Zheng Ziyin Chen Qichun Feng Zhaofang Du anhui province joint key laboratory of cold insulation fiber and clothing Anhui Provincial Engineering Center for Automotive Highly Functional Fiber ProductsSchool of Materials and ChemistryAnhui Agricultural UniversityHefei 230036People’s Republic of China School of Engineering and Materials Science Queen Mary University of LondonMile End RoadLondon E14NSUK key laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials College of Materials and Chemical EngineeringChina Three Gorges UniversityYichang 443002People’s Republic of China Institute of Intelligent Machines Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China

Stretchable conductive fibers composed of conductive materials and elastic substrates have advantages such as braiding abil-ity,electrical conductivity,and high resilience,making them ideal materials for fibrous wearable strain ***,the weak interface between the conductive materials and elastic substrates restricts fibers flexibility under strain,leading to challenges in achieving both linearity and sensitivity of the as-prepared fibrous strain ***,cryo-spun drying strategy is proposed to fabricate the thermoplastic polyurethane(TPU)fiber with anisotropic conductive networks(ACN@TPU fiber).Benefiting from the excellent mechanical properties of TPU,and the excellent interface among TPU,silver nanoparticles(AgNPs)and polyvinyl alcohol(PVA),the prepared ACN@TPU fiber exhibits an outstanding mechanical *** anisotropic conductive networks enable the ACN@TPU fiber to achieve high sensitivity(gauge factor,GF=4.68)and excellent linearity within a wide working range(100%strain).Furthermore,mathematical model based on AgNPs is established and the resistance calculation equation is derived,with a highly matched fitting and experimental results(R2=0.998).As a conceptual demonstration,the ACN@TPU fiber sensor is worn on a mannequin to accurately and instantly detect ***,the successful construction of ACN@TPU fiber with anisotropic conductive networks through the cryo-spun drying strategy provides a feasible approach for the design and preparation of fibrous strain sensing materials with high linearity and high sensitivity.

关键词： Cryo-spun drying Anisotropic conductive networks High sensitivity Wide-range linearity Fibrous wearable strain sensor

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Preparation and properties of ZrO_(2)-strengthened porous mullite insulation materials using Y_(2)O_(3) additive

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Journal of Iron and Steel Research International 2024年第6期31卷 1514-1521页

作者： Wang-zhi Yu Yi-hong Shi Ping Liu Yong-wan Wu Cheng-hao Song Xian-gong Deng Xiang Ding Song-lin Ran Yi Zhang Hai-jun Zhang Hai-liang Deng Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa'anshan 243002AnhuiChina The State key laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina

ZrO_(2)-strengthened porous mullite insulation materials were prepared by foaming technology utilizing ZrSiO_(4) and Al_(2)O_(3) as primary materials and Y_(2)O_(3) as an *** effects of Y_(2)O_(3) contents on the phase composition,microstructure,mechanical properties,and heat conductivity of the porous mullite insulation materials were investigated.A suitable Y_(2)O_(3) content could promote phase transition of monoclinic ZrO_(2)(m-ZrO_(2))to tetragonal ZrO_(2)(t-ZrO_(2)),reduce pore size,and improve the strengths of as-prepared *** cold crushing strength and bending strength of as-prepared specimens with a 119µm spherical pore size using 6 wt.%Y_(2)O_(3) were 35.2 and 13.0 MPa,respectively,with a heat conductivity being only 0.248 W/(m K).

关键词： Porous mullite insulation material Zirconium oxide Y_(2)O_(3) Mechanical property Heat conductivity

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Design and performance of an air inflatable suit in enhancing personal thermal management

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Science China(Technological Sciences) 2023年第9期66卷 2637-2650页

作者： HE JiaZhen LU YeHu SU WenZhen WANG FangMing SONG WenFang WANG LaiLi WANG Min College of Textile and clothing Engineering Soochow UniversitySuzhou 215021China key laboratory of clothing Design and Technology Ministry of EducationDonghua UniversityShanghai 200051China Nantong Textile and Silk Industrial Technology Research Institute Nantong 226300China Suzhou Xingfengqiang Textile Technology Co. Ltd.Suzhou 215227China Garment Digital Engineering Center School of Art and DesignGuangdong University of TechnologyGuangzhou 510000China School of Fashion Design&Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China

Maintaining human thermal comfort in cold indoor environments is crucial but usually involves excessive energy consumption and massive greenhouse gas emissions. Thermoregulating the human body by using advanced clothing is emerging as a promising solution to effectively and energy-efficiently achieve personal thermal management. An air inflatable suit(AirST)using a series of air chambers as the thermal insert was developed for the purpose of adjusting clothing thermal insulation and hence improving personal thermal comfort. The thermal insulation regulating performance of AirST was investigated through thermal manikin tests and wear trials. Compared with the AirST without air inflation, AirST after inflation with air had a desired effect, which could not only increase local clothing thermal insulation by a range from 4.5% to 24.8% but also alleviate cold strain and provide significantly higher local skin temperatures, mean skin temperature and mean body temperature. After inflation, AirST successfully improved the whole-, upper-and lower-body thermal sensations in a cool environment. The acceptable heating setpoint temperature by the air conditioner could be decreased while using AirST with inflation, which saved approximately 30% of building energy consumption. As the AirST without air inflation can also be worn as regular windproof clothing, this versatility saved approximately 12 kg CO_(2)e emissions in the production process.

关键词： air inflatable suit thermal comfort thermal insulation thermal management energy saving perceptual response

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