Flexible ceramic nanofibrous sponges with hierarchically entangled graphene networks enable noise absorption.

ABSTRACT: Traffic noise pollution has posed a huge burden to the global economy, ecological environment and human health. However, most present traffic noise reduction materials suffer from a narrow absorbing band, large weight and poor temperature resistance. Here, we demonstrate a facile strategy to create flexible ceramic nanofibrous sponges (FCNSs) with hierarchically entangled graphene networks, which integrate unique hierarchical structures of opened cells, closed-cell walls and entangled networks. Under the precondition of independent of chemical crosslinking, high enhancement in buckling and compression performances of FCNSs is achieved by forming hierarchically entangled structures in all three-dimensional space. Moreover, the FCNSs show enhanced broadband noise absorption performance (nois

SUBMITTER: Zong D 

PROVIDER: S-EPMC8593031 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature