Thermal Conductivity Paper Database

Influences of template concentration and epoxy functionality on porous epoxy systems: Characteristics of thermal stability, optical, dielectric, and mechanical properties

Porous epoxy thermosets were prepared using poly(ethylene glycol) (PEG) as a template. The two epoxies that were used to make the porous thermosets were diglycidylether bisphenol-A (DGEBA), and triphenylolmethane triglycidyl ether (TGTPM). Trimethylolpropane tris(poly(propylene glycol)), amine terminated)ether (T-403) was used as a hardener in producing the thermosets. The porous thermosets were then characterized to determine their structural, thermal, optical, dielectric, and mechanical properties, and the results ...

Author(s): Chang-Jian Weng, Chung-Feng Dai, Jui-Ming Yeh, Pei-Ru Li

Systematically comparative studies on the preparation and physical properties of PMMA–silica mesocomposite and nanocomposite membranes

PMMA/silica mesocomposites (PSM) and nanocomposites (PSN) were synthesized by incorporating vinyl-modified mesoporous silica (VMS) or silica particles into the poly (methyl methacrylate). The prepared composites were characterized by TEM and GPC. Thermal conductivity and gas permeability measurements were performed on the composites using a thermal constants analyzer and Yanco GTR-31 gas permeability analyzer, respectively. It was determined that an increase in the content of nanoscale silica particles improved the ...

Author(s): Chang-Jian Weng, Jui-Ming Yeh, Kuan-Yeh Huang, Li-Ting Huang, Tzu-Hua Cheng, Yen Wei