Acoustic absorption of solid foams with thin membranes

作者：C., Gaulon; J., Pierre; C., Derec; L., Jaouen; F.-X., Bécot; F., Chevillotte; F., Elias; W., Drenckhan; V., Leroy

来源：Applied Physics Letters, 2018, 112(26): 261904.

DOI：10.1063/1.5025407

<jats:p>We measured the acoustic absorption, in the 0.5–6 kHz frequency range, of polyurethane foams with mean pore diameters between 0.6 and 3.2 mm. Two types of foams were investigated: classical open-cell ones versus membrane foams, in which thin polyurethane membranes were preserved during solidification. Interestingly, the latter presented better absorption abilities, indicating that membranes could be an asset for sound absorption.</jats:p>

• 出版日期2018-6-25
• 单位常州工学院