This study outlines the preparation method and properties of thin extruded cellulose aerogel fibers and monolithic pieces. Microcrystalline cellulose was combined with a hydrated calciumthiocyanate salt melt to form a ...Read More
Keyword: Supercritical Drying
Preparation and characterization of ultralow density silica aerogels by acetonitrile supercritical drying
In this study, ultralow density silica aerogels were synthesized and their thermal conductivities were tested to determine how supercritical drying affected the samples. A Hot-Disk TPS2500 measured the thermal conductivity ...
Keywords: Acetonitrile solvent extraction, Aerogels, density, Hot Disk, morphology, pcms, phase change materials, Scanning electron microscope (SEM), Silica, Sol-gel process, Supercritical Drying, Surface Area, Tetramethyl orthosilicate (TMOS), Thermal Conductivity, thermal insulation, thermal transport properties, Transient plane source (TPS), Transient plane source (TPS) methodRead More
Carbon fiber reinforced carbon aerogel composites for thermal insulation prepared by soft reinforcement
In order to improve the brittleness and shrinkage experienced by carbon aerogels during the drying process, carbon fibers were added to the aerogel. Supercritical drying was used in order to ...
Keywords: Carbon Aerogels, Carbon Fiber, Carbon Fiber Reinforced Composites, Hot Disk method, PAN/RFs, Polyacrylonitrile Fiber Reinforced Resorcinol-Formaldehyde Aerogel Composites, Polyacrylonitrile Fiber Reinforced Resorcinol-Formaldehyde Aerogel Composites (PAN/RFs), Supercritical Drying, Thermal Conductivity, thermal insulationRead More
The main objective of this research project was to create a material with a very low thermal conductivity at high temperatures, for the conservation of energy in high temperature systems. ...
Keywords: Accelerated-Gelation Sol-Gel Process, Barrett-Joyner-Halenda, Barrett-Joyner-Halenda (BJH) pore volume, BET, BJH, Brunauer-Emmett-Teller, Brunauer-Emmett-Teller (BET), Carbon Nanofibers, density, Extinction Coefficients, FE-SEM, Fourier-Transform Infrared Spectroscopy, Fourier-Transform Infrared Spectroscopy (FT-IR), FT-IR, High Temperature, Opacified Monolithic Aerogels, pore volume, porosity, Scanning Electron Microscopy, Scanning Electron Microscopy (FE-SEM), specific surface area, Supercritical Drying, TGA, Thermal Conductivity, thermal insulation, Thermogravimetric Analysis, Thermogravimetric analysis (TGA), TPS Technique, Transient Plane Source, Transient plane source (TPS) methodRead More