In this study, the sound properties of four types of nanocomposites have been investigated. To this end, the prepared samples were measured by the impedance tube model BSWA-SW 422, SW477. It was found that the Sound Absorption Coefficient (SAC) of all samples was increased at high frequencies relatively well. The highest SAC at medium and low frequencies was related to the nanocomposite D. The results of sound Transmission Loss (TL) of nanocomposites showed that the TL value for the nanocomposite D (optimum sample) was higher at all frequencies compared to other nanocomposites. The results confirmed that adding organic and mineral materials to the silica aerogel (SA) simultaneously improves its sound properties. By measuring the Sound Pressure Level (SPL) around the enclosure without optimum sample and with optimum sample in the four sound ranges, we found that using nanocomposite D can significantly reduce the noise. According to this study, SA/polyester nonwoven layer/pan nanofibers/nanoclay nanocomposite (nanocomposites D) have great sound absorption properties, which can be used in different environments.

在这项研究中，已经研究了四种类型的纳米复合材料的声音特性。为此，通过阻抗管型号BSWA-SW 422，SW477测量制备的样品。发现所有样品的吸声系数（SAC）在高频下相对良好地增加。中低频率下最高的SAC与纳米复合材料D有关。纳米复合材料的声音传输损耗（TL）结果表明，与其他纳米复合材料相比，纳米复合材料D（最佳样品）的TL值在所有频率下都更高。结果证实，向二氧化硅气凝胶（SA）添加有机和矿物材料可同时改善其声音性能。通过测量外壳周围的声压级（SPL）来获得最佳样本和四个声音范围内的最佳样本，我们发现使用纳米复合材料D可以显着降低噪音。根据这项研究，SA /聚酯无纺布层/泛纳米纤维/纳米粘土纳米复合材料（纳米复合材料D）具有很好的吸声性能，可在不同的环境中使用。