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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/112023

    Title: Mechanical, acoustic, and thermal performances of shear thickening fluid-filled rigid polyurethane foam composites: Effects of content of shear thickening fluid and particle size of silica
    Authors: Li;Ting-Tin;Li;Ting-Ting;Ling;Lei;Ling;Lei;Wang;Xiaoxi;Wang;Xiaoxiao;Jiang;Qian;Jiang;Qian;Liu;Bobo;Liu;Bobo;林佳弘;Lin, Jia-Horng;樓靜文;Lou;Ching-Wen
    Contributors: 生物資訊與醫學工程學系
    Date: 2019-01
    Issue Date: 2019-09-10 14:55:08 (UTC+8)
    Abstract: Shear thickening fluid (STF) features a rheological property, and rigid polyurethane (PU) foams feature low thermal conductivity and excellent acoustic insulation. In this study, an STF/PU rigid foam composite sandwich structure was designed using different contents (0, 0.5, 1, or 1.5 wt %) of STF that contained 14 nm, 40 nm, or 75 nm silicon dioxide (SiO2). The effects of STF content and silica size on the cell structure, mechanical performance, acoustic absorption, and thermal performance of the STF/PU foam were explored. The test results show that STF/PU foam exhibited three characteristic acoustic absorption peaks, and the maximum acoustic absorption coefficient reached 0.841. STF addition increased compression, bending strength, and maximum acoustic coefficient, as well as initial mass loss temperature. STF‐filled PU foam composites containing 14 nm and 40 nm SiO2 had a mild rise in thermal insulation. The rigid STF/PU foam composites with a cell structure had the maximum thermal conductivity of 0.22 W m−1 K−1 and sound absorption coefficient of 0.841, which confirm that they are a good candidate for sound‐absorbing energy conservation materials. © 2019 Wiley Periodicals, Inc. J. Appl. Polym.
    Appears in Collections:[生物資訊與醫學工程學系 ] 期刊論文

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