Owl-Inspired Coupled Structure Nanofiber-Based Aerogels for Broadband Noise Reduction DOI

Yaning Sun,

Dingding Zong,

Yang Li

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Noise pollution, as one of the three major pollutants, has brought serious harm to human life. Existing single-structured acoustic materials inevitably compromise between good low and high-frequency performance. Herein, mimicking efficient noise absorption structure owl's skin feathers, owl-inspired coupling nanofiber-based aerogels (OSNAs) were created by integrating emulsion-templated freeze-reconstruction method. The owl feather layer aerogel can effectively absorb noise, while cavity dissipate low-frequency through resonance effect, thus realizing effective broadband noise. reduction coefficient (NRC) OSNAs reaches 0.58 up 0.69 with an additional 1 cm back air layer. Moreover, reduce car engine 8.9 dB. In addition, showed mechanical stability maintained their intact after 100 compressions. This study paves way for advanced control that significantly alleviate pollution.

Язык: Английский

Owl-Inspired Coupled Structure Nanofiber-Based Aerogels for Broadband Noise Reduction DOI

Yaning Sun,

Dingding Zong,

Yang Li

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Noise pollution, as one of the three major pollutants, has brought serious harm to human life. Existing single-structured acoustic materials inevitably compromise between good low and high-frequency performance. Herein, mimicking efficient noise absorption structure owl's skin feathers, owl-inspired coupling nanofiber-based aerogels (OSNAs) were created by integrating emulsion-templated freeze-reconstruction method. The owl feather layer aerogel can effectively absorb noise, while cavity dissipate low-frequency through resonance effect, thus realizing effective broadband noise. reduction coefficient (NRC) OSNAs reaches 0.58 up 0.69 with an additional 1 cm back air layer. Moreover, reduce car engine 8.9 dB. In addition, showed mechanical stability maintained their intact after 100 compressions. This study paves way for advanced control that significantly alleviate pollution.

Язык: Английский

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