Fire-Retardant and Thermally Insulating Phenolic-Silica Aerogels

Angewandte Chemie
Zhi-Long YuShu-Hong Yu

Abstract

Energy efficient buildings require materials with a low thermal conductivity and a high fire resistance. Traditional organic insulation materials are limited by their poor fire resistance and inorganic insulation materials are either brittle or display a high thermal conductivity. Herein we report a mechanically resilient organic/inorganic composite aerogel with a thermal conductivity significantly lower than expanded polystyrene and excellent fire resistance. Co-polymerization and nanoscale phase separation of the phenol-formaldehyde-resin (PFR) and silica generate a binary network with domain sizes below 20 nm. The PFR/SiO2 aerogel can resist a high-temperature flame without disintegration and prevents the temperature on the non-exposed side from increasing above the temperature critical for the collapse of reinforced concrete structures.

References

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Citations

Sep 3, 2019·Small·Jing YangWei Liu
Mar 10, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Guoqing ZuKazuki Nakanishi
Jun 3, 2020·Advanced Materials·Zhi-Long YuShu-Hong Yu
Aug 23, 2020·Nanomaterials·Jaswinder Sharma, Georgios Polizos
Mar 13, 2021·ACS Nano·Sandeep AhankariHanieh Kargarzadeh
Apr 21, 2021·ACS Applied Materials & Interfaces·Enshuang ZhangHao Zhang
Jul 3, 2021·Nanomaterials·Daron SpenceJaswinder Sharma
Jul 16, 2021·Journal of Colloid and Interface Science·Tao ZhangYuan Hu
Jul 9, 2021·International Journal of Biological Macromolecules·Aphra AgabaWang Yuanhao
Dec 19, 2019·ACS Nano·Peiying HuXuetong Zhang
Aug 6, 2019·ACS Applied Materials & Interfaces·Samantha J TalleyRobert B Moore
Jun 12, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Linbin WangQifang Li
Oct 27, 2018·ACS Applied Materials & Interfaces·Ali RizviChul B Park
Mar 1, 2019·ACS Applied Materials & Interfaces·Jian ZhuSeema Agarwal
Dec 26, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Ana R GarciaLaura M Ilharco

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