Highly flexible ceramic nanofibrous membranes for superior thermal insulation and fire retardancy

Nano Research ◽  
2021 ◽  
Author(s):  
Xue Mao ◽  
Li Zhao ◽  
Kun Zhang ◽  
Yao-Yu Wang ◽  
Bin Ding
2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Shengyang Zhou ◽  
Varvara Apostolopoulou-Kalkavoura ◽  
Marcus Vinícius Tavares da Costa ◽  
Lennart Bergström ◽  
Maria Strømme ◽  
...  

AbstractMetal–organic frameworks (MOFs) with high microporosity and relatively high thermal stability are potential thermal insulation and flame-retardant materials. However, the difficulties in processing and shaping MOFs have largely hampered their applications in these areas. This study outlines the fabrication of hybrid CNF@MOF aerogels by a stepwise assembly approach involving the coating and cross-linking of cellulose nanofibers (CNFs) with continuous nanolayers of MOFs. The cross-linking gives the aerogels high mechanical strength but superelasticity (80% maximum recoverable strain, high specific compression modulus of ~ 200 MPa cm3 g−1, and specific stress of ~ 100 MPa cm3 g−1). The resultant lightweight aerogels have a cellular network structure and hierarchical porosity, which render the aerogels with relatively low thermal conductivity of ~ 40 mW m−1 K−1. The hydrophobic, thermally stable MOF nanolayers wrapped around the CNFs result in good moisture resistance and fire retardancy. This study demonstrates that MOFs can be used as efficient thermal insulation and flame-retardant materials. It presents a pathway for the design of thermally insulating, superelastic fire-retardant nanocomposites based on MOFs and nanocellulose.


2021 ◽  
Vol 41 (2) ◽  
pp. 1471-1480
Author(s):  
Ying Peng ◽  
Yongshuai Xie ◽  
Lin Wang ◽  
Lixin Liu ◽  
Silun Zhu ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6027-6032 ◽  
Author(s):  
Yinsong Si ◽  
Xue Mao ◽  
Hongxia Zheng ◽  
Jianyong Yu ◽  
Bin Ding

Novel silica nanofibrous membranes with ultra-softness of 40 mN and enhanced tensile strength of 5.5 MPa were prepared for the first time via an electrospinning process, which exhibited an ultra-low thermal conductivity of 0.0058 W m−1 K−1.


2019 ◽  
Vol 5 (3) ◽  
pp. 69-78
Author(s):  
V. V. Mozharovsky ◽  
◽  
D. S. Kuzmenkov ◽  
E. A. Golubeva ◽  
◽  
...  
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