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首页> 外文期刊>Advanced Science Letters >Biopolymer Foam Composites of Polyurethane Filled with Natural Fiber to Improved Sound Absorption Performance
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Biopolymer Foam Composites of Polyurethane Filled with Natural Fiber to Improved Sound Absorption Performance

机译：聚氨酯的生物聚合物泡沫复合材料填充天然纤维以提高吸音性能

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摘要

The main objective of this study was to evaluate the sound absorption properties of biopolymer foam composites (BP) produced from waste cooking oil reinforced with natural fiber of Red Meranti filler. The Scanning Electron Microscope (SEM), Density test and Impedance Tube test wereused to observe the morphological structure, density and sound absorption coefficient level, α for BP samples. The foams thickness, filler content and pore structure have contributed to influencing the sound absorption properties. BP-20 indicating 20% of natural fiber filler with30 mm thickness has revealed the highest α with 0.9785 and 0.9809 at low and high absorption frequency level respectively. An increment of weight percentage ratio of the filler content and thickness of the foam shows remarkable properties of highest α level. Fromthe morphological structure and density viewpoint, the increment of filler content contributed in producing smaller pore structure and largest density which has improved the sound absorption properties of rigid polyurethane foam. This study indicates that the biopolymer foam composites ofthe polymer are suitable to be used as sound absorbing materials.
机译：本研究的主要目的是评估用红美石填料的天然纤维增强的废烹饪油生产的生物聚合物泡沫复合材料（BP）的吸音特性。扫描电子显微镜（SEM），密度试验和阻抗管测试均衡以观察到BP样品的形态结构，密度和吸声系数水平，α。泡沫厚度，填料含量和孔结构有助于影响吸声性能。 BP-20表示具有30mm厚度的20％的天然纤维填料，揭示了0.9785和0.9809的最高的α，分别为低和高吸收频率。填料含量和泡沫厚度的重量百分比比率的增量率和厚度显示出最高的α水平的显着性质。从形态学结构和密度观点来看，填充物含量的增量导致生产较小的孔隙结构和最大密度，其具有改善刚性聚氨酯泡沫的吸声性能。该研究表明，聚合物的生物聚合物泡沫复合材料适合用作声音吸收材料。

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