Double Network Structure Significantly Improves Both Strength and Toughness of Nitrile-Butadiene Rubber by Introducing Poly (Acrylonitrile-Co-Butyl Acrylate) Elastomer

Published: Jan. 1, 2024

Language: Английский

Highly Compressible Micro/Nanofibrous Sponges with Thin-Walled Cavity Structures Enable Low-Frequency Noise Reduction

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Increasing noise pollution has generated a tremendous threat to human health and incurred great economic losses. However, most existing noise-absorbing materials present significant challenge in achieving lightweight, robust mechanical stability, efficient low-frequency (<1000 Hz) reduction. Herein, we create highly compressible micro/nanofibrous sponges with thin-walled cavity structures for reduction through electrospinning dispersion casting. Manipulating the phase separation driven by solution/water interaction jets enables formation of fluffy fibrous frameworks, on which deformation casting is controlled develop consisting semiopened cells entangled networks. The resultant exhibit lightweight characteristics (2.2 mg cm–3) robustness, integrated remarkable capability (absorption coefficient up 0.98) benefiting from vibration viscous friction effects cavity-structured skeletons. This work may offer new horizons designing advanced acoustical materials, inspiring next-generation noise-reducing devices aerospace transportation.

Language: Английский

High-Efficiency Electrothermal Film with Superior Flame Retardancy for Resisting Extreme Conditions

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: unknown, P. 111168 - 111168

Published: Dec. 1, 2024

Language: Английский