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首页> 外文期刊>Composites Science and Technology >Influence of filler surface characteristics on morphological, physical, acoustic properties of polyurethane composite foams filled with inorganic fillers
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Influence of filler surface characteristics on morphological, physical, acoustic properties of polyurethane composite foams filled with inorganic fillers

机译：填料表面特性对填充无机填料的聚氨酯复合泡沫的形态，物理，声学性能的影响

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摘要

In modern automobiles, noise pollution is a critical issue, and polyurethane foam is commonly used due to its high sound absorption and ease of production. In this study, polyurethane composite foams were fabricated using inorganic fillers (Talc, Zinc Borate, and Aluminum Hydroxide), and the morphological and physical properties were assessed. The cavity and pore sizes of composite foams with hydrophobic fillers were smaller than those of foams with hydrophilic fillers due to differences in the cell collapsing phenomena. This difference in the surface properties of the filler also significantly affects the physical strength of the composite materials, and it is further related to the sound absorption efficiency of the foams. This sound absorption coefficient revealed the same trend with the loss modulus reflecting a measure of the dissipated energy between the polymer chains and fillers through microstructural deformations. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在现代汽车中，噪声污染是一个关键问题，聚氨酯泡沫由于其高吸声和易于生产而被广泛使用。在这项研究中，使用无机填料（滑石粉，硼酸锌和氢氧化铝）制造了聚氨酯复合泡沫材料，并评估了其形态和物理性能。由于孔塌陷现象的差异，具有疏水性填料的复合泡沫的空腔和孔径小于具有亲水性填料的泡沫。填料的表面性质的这种差异还显着影响复合材料的物理强度，并且还与泡沫的吸声效率有关。该吸声系数显示出相同的趋势，其损耗模量反映了通过微结构变形对聚合物链和填料之间的耗散能量的度量。 （C）2017 Elsevier Ltd.保留所有权利。

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