In this study, it was aimed to create a flexible composite material that can be used in special environments where heat and sound insulation is desired. Pumice with a grain size of 4.76-2.38 mm was mixed with 10% -20% -30% 40% and 50% PU by volume. Sound absorption coefficient, sound transmission loss coefficient and thermal conductivity coefficient tests were conducted. Sound absorption coefficient and sound transmission loss coefficient values were measured in the frequency ranges of 50-1600 Hz or 200-6400 Hz according to the ISO 10534-2 standard, using the device called "impedance tube". Lasercomp Fox50 device was used to determine the thermal conductivity coefficient. As a result of these tests, it was determined that the values of sound absorption coefficient, sound transmission loss coefficient and thermal conductivity coefficient decreased at low frequencies as the pumice rate increased. It was observed that samples with 20% and 30% pumice rates gave the most effective results in low-frequency measurements, and that samples did not exhibit a stable behavior in high frequency measurements. It was concluded that pumice additive polyurethane composite material (PAPCM) could be a very suitable building material in terms of thermal and sound insulation.

中文翻译：

---

浮石/聚氨酯复合材料的隔热和隔音性能

在这项研究中，旨在创建一种可用于需要隔热和隔音的特殊环境的柔性复合材料。将具有4.76-2.38mm的粒度的浮石与按体积计10％-20％-30％40％和50％PU混合。进行了吸声系数，传声损耗系数和导热系数测试。使用称为“阻抗管”的装置，根据ISO 10534-2标准，在50-1600 Hz或200-6400 Hz的频率范围内测量了吸声系数和传声损耗系数值。使用Lasercomp Fox50装置确定导热系数。作为这些测试的结果，确定了吸声系数的值，随着浮石速率的增加，声音的传输损耗系数和导热系数在低频下减小。据观察，浮石比率为20％和30％的样品在低频测量中提供了最有效的结果，而样品在高频测量中没有表现出稳定的行为。结论是，就隔热和隔音而言，浮石添加剂聚氨酯复合材料（PAPCM）可能是非常合适的建筑材料。