Aerogels are promising thermal insulators because of their low thermal conductivity, durability and eco-friendly nature. However, aerogels become a problem because of their highly flammable properties. In this study, flame retardant cellulose insulators were formed from scrap pieces of cotton. Firstly, an NaOH/Urea solution was combined with the scrap pieces of cotton to create a nanoporous three-dimensional cellulose gel. This gel will ultimately serve as a template for the ...
Author(s): Canhui Lu, Xiaodong Wu, Xinxing Zhang, Yangyang Han
Clay aerogels are typically used for insulation, filtration and absorption, and are typically favored because of their eco-friendly nature, low density and high porosity. Unfortunately, these aerogels are limiting due to their relatively high fragility. Researchers in this study aimed to create fracture-free pectin/clay aerogel monoliths. In this process, water was used as the solvent and montmorillonite as the solute. Morphologies, thermal stability and conductivity of the monoliths were ...
Author(s): H. Wu, Q. Chen, Y. Lua
Resin polymers, such as Polymethyl methacrylate (PMMA), have been used in denture fabrication because of their easy molding ability and flawless appearance. However, these PMMAs are not the most desirable material when dealing with mechanical strength, electrical conductivity and thermal stability. In this study, the addition of fillers, such as Nano-Aluminum Oxide (Nano-Al2O3) and plasma treated polypropylene (PP) fibers, to these polymers has been explored. Nanocomposites are desired in ...
Author(s): Intisar J. Ismail, Omar R. Muklif
This study highlights the ongoing search for sustainable and thermally suitable phase-change materials (PCMs), for hot weather building climates, such as Iraq. This new PCM must have an extraordinary heat and cold retention ability. Building industries are interested in using paraffin’s in their roofing materials, because of their thermo-physical properties, their profitability to save on electricity and HVAC (heating-ventilating air conditioning) systems, their local abundance, as well as their ...
Author(s): Abdulrahman Th. Mohommad, Hasanen M. Hussen, Hussein J. Akeiber, Mazlan A. Wahid
Wooden cellular slabs with rectangular perforations are commonly used by civil engineers in settings such as concert halls, nurseries, hotels, airports, etc., for noise elimination and heat retention. In this study, fire resistance of perforated wooden slabs was tested in order to attain a numerical approach using the finite element method, when predicting the performance and behavior of the perforated wooden slabs. Paying close attention to the thermal properties of ...
Author(s): D. Ferreira, E. M. M. Fonseca, J. M. Meireles, P. A. G. Piloto
