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Thermally Insulating Polyimide Aerogel Skeletons Constructed by Hybridizing the Al–O Network Phase [PDF]

open access: yesGels
Polyimide aerogels have garnered considerable attention due to their high-performance combination of a lightweight nature, low thermal conductivity, and high mechanical strength, which renders them ideal candidates for thermal insulators in aerospace ...
Mingkang Wang   +7 more
doaj   +2 more sources

Overview of organic–inorganic hybrid silica aerogels: Progress and perspectives

open access: goldMaterials & Design, 2022
Silica aerogels are futuristic materials. However, the real-world applications of these materials are limited owing to their fragility. A variety of composite materials have been investigated to overcome this barrier.
Puttavva Meti   +6 more
doaj   +2 more sources

Facile Fabrication of Mechanically Strong and Thermal Resistant Polyimide Aerogels with an Excess of Cross-Linker

open access: goldJournal of Materials Research and Technology, 2020
: In this study, we report the effect of the number of formulated repeat units (n), the type of diamine and the cross-linker content on pore morphology, structure and mechanical properties of vacuum-dried polyimide aerogels.
Yu Lin   +4 more
doaj   +2 more sources

Chitosan Based Aerogels with Low Shrinkage by Chemical Cross-Linking and Supramolecular Interaction

open access: yesGels, 2022
Chitosan (CTS) aerogel is a new type of functional material that could be possibly applied in the thermal insulation field, especially in energy-saving buildings.
Sizhao Zhang   +6 more
doaj   +1 more source

Hydrophobic Cellulose Acetate Aerogels for Thermal Insulation

open access: yesGels, 2022
As naturally derived material, cellulose aerogels have excellent thermal insulation properties due to their unique high porosity and three-dimensional mesoporous structure.
Sizhao Zhang   +8 more
doaj   +1 more source

Hydrophobization of Monolithic Resorcinol-Formaldehyde Xerogels by Means of Silylation

open access: yesGels, 2022
In materials research, the control of wettability is important for many applications. Since they are typically based on phenolics, organic aerogels, and xerogels are intrinsically hydrophilic in nature, and examples of the chemical functionalization of ...
Fabian Henn, René Tannert
doaj   +1 more source

Impact of pearl-necklace-like skeleton on pore sizes and mechanical properties of porous materials: A theoretical view

open access: yesAIP Advances, 2022
The structural and mechanical properties of open-porous cellular materials are often described in terms of simple beam-based models. A common assumption in these models is that the pore walls have a constant cross section, which may be in agreement for a
Ameya Rege, Shivangi Aney, Lorenz Ratke
doaj   +1 more source

Chitin Nanowhisker Aerogels [PDF]

open access: yesChemSusChem, 2013
AbstractChitin nanowhiskers are structured into mesoporous aerogels by using the same benign process used previously in our group to make cellulose nanowhisker aerogels. The nanowhiskers are sonicated in water to form a hydrogel before solvent‐exchange with ethanol and drying under supercritical CO2 (scCO2). Aerogels are prepared with various densities
Heath, Lindy   +2 more
openaire   +4 more sources

Computational design of biopolymer aerogels and predictive modelling of their nanostructure and mechanical behaviour

open access: yesScientific Reports, 2021
To address the challenge of reconstructing or designing the three-dimensional microstructure of nanoporous materials, we develop a computational approach by combining the random closed packing of polydisperse spheres together with the Laguerre–Voronoi ...
Rajesh Chandrasekaran   +5 more
doaj   +1 more source

Advanced Fabrication and Multi-Properties of Aluminum-Based Aerogels from Aluminum Waste for Thermal Insulation and Oil Absorption Applications

open access: yesMolecules, 2023
Metal-based aerogels have attracted numerous studies due to their unique physical, structural, thermal, and chemical properties. Utilizing aluminum waste, a novel, facile, environmentally friendly approach to aluminum-based aerogels is proposed.
Xue Yang Goh   +7 more
doaj   +1 more source

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