Boron Nitride Aerogels with Super‐Flexibility Ranging from Liquid Nitrogen Temperature to 1000 °C

By Guangyong Li, Mengya Zhu, Wenbin Gong, R. Du, A. Eychmüller, Taotao Li, Weibang Lv, Xuetong Zhang. Advanced Functional Materials, 2019

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Aerogels with extraordinary mechanical properties attract a lot of interest for their wide spread applications. However, the required flexibility is yet to be satisfied, especially under extreme conditions. Herein, a boron nitride nanoribbon aerogel with excellent temperature‐invariant super‐flexibility is developed by high temperature amination of a melamine diborate precursor formed by hydrogen bonding assembly. The unique structure of the aerogel provides it with outstanding compressing/bending/twisting elasticity, cutting resistance, and recoverable properties. Furthermore, the excellent mechanical super‐flexibility is maintained over a wide temperature range, from liquid nitrogen temperature (−196 °C) to higher than 1000 °C, which extends their possible applications to harsh environments.

Subfields: Biomaterials, Electronic, Optical and Magnetic Materials, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/5c4a17c4360fe55ec91825b3236ae258bec39c52