• DOI:10.1039/c8nr09288e
• Corpus ID: 58574452

Ultralight, superelastic and bendable lashing-structured nanofibrous aerogels for effective sound absorption.

@article{Cao2019UltralightSA,
  title={Ultralight, superelastic and bendable lashing-structured nanofibrous aerogels for effective sound absorption.},
  author={Leitao Cao and Yang Si and Yuanyuan Wu and Xueqin Wang and Jianyong Yu and Bin Ding},
  journal={Nanoscale},
  year={2019},
  volume={11 5},
  pages={
          2289-2298
        }
}

• Leitao Cao, Y. Si, +3 authors B. Ding
• Published 31 January 2019
• Engineering, Materials Science
• Nanoscale

Low-density nanofibrous aerogels enable various applications but are often hindered by their fragile bendability and poor tensile strength. Herein, we report a strategy to design nanofibrous aerogels with robust bendability and superelastic property, which has been achieved by fabricating bamboo lashing-like structures through a freeze-drying method. The obtained reinforced nanofibrous aerogels (RNFAs) can maintain their structural integrity after 100 bending-recovery cycles at a bending angle of about 100°. Particularly, the RNFAs can completely revive from large deformation with a fast recovery speed (∼834 mm s-1). Significantly, the internal hierarchical porous structures and hydrophobicity of the materials provide them with ultralight properties (density <11 mg cm-3), efficient sound absorption capability (noise reduction coefficient of 0.41) and good moisture resistance; thus, they are promising options in cabins, vehicles, and the regulation of indoor reverberation.