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    Ag nanoparticles coated cellulose membrane with high infrared reflection, breathability and antibacterial property for human thermal insulation

    Year: 2019

    Journal: J. Colloid Interface Sci., Volume 535, FEB 1, page 363–370

    Authors: Yue, Xuejie; Zhang, Tao; Yang, Dongya; Qiu, Fengxian; Li, Zhangdi; Wei, Gengyao; Qiao, Yu

    Organizations: Natural Science Foundation of Jiangsu Province [BK20160500, BK20161264]; National Natural Science Foundation of China [21706100, 21878132, U1507115]; High-Level Personnel Training Project of Jiangsu Province [BRA2016142]; Key Research and Development Program of Jiangxi Province [20171BBH80008]; China Postdoctoral Science Foundation [2018T110452, 2016M600373]; China Postdoctoral Science Foundation of Jiangsu Province [1601016A, 1701073C]; Scientific Research Foundation for Advanced Talents, Jiangsu University [15JDG142]

    Keywords: Ag; Waste paper; Infrared reflection; Breathability; Antibacterial property; Thermal insulation

    To maintain personal thermal comfort in cold weather, indoor heating consumes large amount of energy and is a primary source of greenhouse gas emission. Traditional clothes are too thick for thermal comfort in cold outdoor environment, resulting the lower wearing comfort. In this work, a multifunctional Ag nanoparticles/cellulose fibers thermal insulation membrane starting from waste paper cellulose fibers was prepared via simple silver mirror reaction and subsequent vacuum filtration process to improve the infrared reflection properties of membranes for human thermal insulation. The sphere-like Ag nanoparticles were tightly anchored on surface of waste paper cellulose fibers, forming an Ag nanoparticles infrared radiation reflection coating with high infrared reflectance, resulting in high thermal insulation capacity of the thermal insulation membrane. In addition, Ag nanoparticles endow the thermo insulation membrane with excellent antibacterial activity, and the thermo insulation membranes can effectively inhibit the growth of both Staphylococcus aureus and Escherichia coli. In this thermal insulation system, the thermo insulation membranes show superhydrophilicity and porosity, which allow the membranes to be breathable for comfortable wearing feeling. These promising results including high infrared reflection for high thermal insolating, high breathability for wearing comfort, and excellent antibacterial activity make the Ag/cellulose thermo insulation membranes promising candidates for applications in human thermal management, energy regulation and other facilities. (C) 2018 Elsevier Inc. All rights reserved.
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