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Ultralight and Hydrophobic Palygorskite-based Aerogels with Prominent Thermal Insulation and Flame Retardancy by Huiran Jin; Xinyu Zhou; Tingting Xu; Chenye Dai; Yawei Gu; Shan Yun; Tao Hu; Guofeng Guan; Jing Chen is a Engineering article available to read on EtoBox.
What is Ultralight and Hydrophobic Palygorskite-based Aerogels with Prominent Thermal Insulation and Flame Retardancy about?
Clay-based aerogel is a promising material in the field of thermal insulation and flame retardant, but obtaining clay-based aerogel with high fire resistance, low thermal conductivity, hydrophobicity, and mechanical robustness remains a challenge. In this work, palygorskite-based aerogel was successfully fabricated via combining with a very small proportion of alginate to form a distinctive hierarchically meso-microporous structure. By employing ethanol solution (EA) replacement method and freeze-drying process, the resultant aerogel exhibited ultralow density (0.035-0.052 g/cm), practical mechanical strengths (0.7-2.1 MPa), and low thermal conductivity of 0.0332-0.165 W/mK (25-1000 °C). The hydrophobicity of aerogel was achieved by simple chemical vapor deposition of methyltrimethoxysilane (MTMS). The Pal-based aerogel showed good performance in both fire resistance with high limiting oxygen index up to 90%, and heat resistance with tolerance of flame up to 1000 °C for 10 min. This renewable Pal-based aerogel with a 3D framework is a promising material to be applied in fields of construction and aerospace for thermal insulation and high fire resistance.
Who reads Ultralight and Hydrophobic Palygorskite-based Aerogels with Prominent Thermal Insulation and Flame Retardancy?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Huiran Jin; Xinyu Zhou; Tingting Xu; Chenye Dai; Yawei Gu; Shan Yun; Tao Hu; Guofeng Guan; Jing Chen
- Publisher
- American Chemical Society; American Chemical Society (ACS) (ISSN 1944-8244)
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)