Metal coordination assists fabrication of multifunctional aerogel. (30th April 2021)

• Record Type: Journal Article
• Authors: Hu, Yijie; Zhuo, Hao; Chen, Zehong; Peng, Xinwen; Zhong, Linxin; Sun, Runcang
• Is Part Of: Journal of materials science & technology. Volume 71(2021)
• Page Start: 67
• Page End: 74
• Publication Date: 2021-04-30
• Subjects: Foam -- Composites -- Resilient -- Carbon; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2020.09.007
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: Interfacial design is one of the most promising ways in improving mechanical properties of nanocomposites. In this work, a multifunctional aerogel with excellent mechanical performances, sensing sensitivity, and fire retardancy is fabricated by taking advantage of metal coordination between biopolymer and Fe 3+ . Montmorillonite (MMT) nanosheets are added to induce a 'brick and mortar' structure. The coordination remarkably reduces structural defects, leading to well-formed lamellas that can effectively distribute stress under sever compression without plastic deformation. The structural merits impart the aerogel highly reversible compressibility even at 99 % strain and superior durability. Besides, it demonstrates high sensing performance in wearable health monitoring devices, and shows fire resistance property that can maintain elasticity in a flame. The work offers a facile and effective method to create multifunctional aerogels from various polymers.