Surface Area Archives - Thermtest Inc.

A new method for preparing tannin-based foams

Author(s): A. Szczurek, Alain Celzard, Antonio Pizzi, M. Stauber, V. Fierro

The authors present a novel method for the preparation of highly porous tannin-based meringues by shear mechanical mixing of tannin, hexamine, and Kolliphore® ELP in water. The liquid foam was ...

Keywords: Average Cell Size, Average Window Diameter, Cell structure, Compression Modulus, Compression Strength, Pore Size Distribution, porosity, SEM, Surface Area, Tannin-Based Foams, Thermal Conductivity, transient plane source method

Reduction of shrinkage and brittleness for resorcinol-formaldehyde aerogels by means of a pH-controlled sol-gel process

Author(s): Lorenz Ratke, Marina Schwan, Rene Tannert

This article investigates how the thermal conductivity of a resorcinol-formaldehyde aerogels varies with increasing resorcinol (R) to water (W) ratios. The thermal conductivity was measured using the Hot disk transient ...

Keywords: Aerogels, composite materials, density, gel shrinkage, Pekala, pH, polymerization, porosity, resorcinol-formaldehyde aerogels, Sol-gel process, superinsulating materials, Surface Area, Thermal Conductivity, Transient plane source (TPS), Transient plane source (TPS) method

Preparation and characterization of ultralow density silica aerogels by acetonitrile supercritical drying

Author(s): Bin Zhou, Guang Wu Liu, Qiu Jie Yu, Xing Yuan Ni

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, 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) method

Ambient pressure dried shape-controllable sodium silicate based composite silica aerogel monoliths

Author(s): Teng Huang, Xiaoyong He, Xuan Cheng, Ying Zhang, Zaidong Shao, Ziwei Niu

The preparation process of silica aerogels has commonly involved a dangerous supercritical drying step, so work has been done to eliminate this step. This paper discusses the preparation of composite ...

Keywords: 1H MAS NMR, 29Si MAS NMR, Compressive Test, Nitrogen Adsorption-Desorption Isotherm, Pore Size, pore volume, Scanning Electron Microscope, Scanning electron microscope (SEM), SEM, Silica aerogels, Surface Area, Transient Plane Heat Source Method

Keyword: Surface Area

A new method for preparing tannin-based foams

Reduction of shrinkage and brittleness for resorcinol-formaldehyde aerogels by means of a pH-controlled sol-gel process

Preparation and characterization of ultralow density silica aerogels by acetonitrile supercritical drying

Ambient pressure dried shape-controllable sodium silicate based composite silica aerogel monoliths

Search Paper Database

Demonstration Corner

Laboratory Instruments

Portable Meters

Pin It on Pinterest