Results 161 to 170 of about 3,596 (208)
Applied Energy, 2015 In this study, a novel thermal energy storage composite was developed by impregnating paraffin into hydrophobic coated expanded perlite (EPO) granules.
Sayanthan Ramakrishnan +2 more
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Plant growth in expanded perlite
New Zealand Journal of Agricultural Research, 1960Summary The chemical and physical properties of expanded perlite as a growth medium are described. The growth of cress in perlite receiving additions of inorganic fertilisers is described and assessed. Only slightly less growth was made in perlite fortified with plant nutrients than in a good potting soil.
T. M. Morrison +2 more
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Evaluation of expanded perlite behavior in PS/Perlite composites
Applied Clay Science, 2019Abstract In this study, composites based on PS/Perlite were prepared with 10 (P10) and 20 (P20) wt% of perlite by melt mixing in a twin screw extruder. The perlite effect was assessed by the composites morphological, thermal, mechanical and rheological properties. The photographs obtained by SEM revealed that some perlite's particles broke during the
Amanda Gerhardt de Oliveira +4 more
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Preparation of fine expanded perlite
Journal of Materials Science, 1999Hollow glass microspheres named expanded perlite have been prepared from perlite, but the size is usually above 20 μm. Recently fine microspheres with low density are desired. In the conventional preparation method, it is difficult to produce fine expanded perlite with particle size under 20 μm because the water contained in finely milled perlite ...
K. Sodeyama +3 more
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THERMAL CONDUCTIVITY OF MORTAR WITH EXPANDED PERLITE
SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings, 2023Perlite is a naturally occurring siliceous rock of volcanic origins. When heated to more than 1000 C it expands up to several times its original volume and thus creating the premises of light weightiness and thermal insulating properties. The indoor comfortable climate of modern lifestyle requires large amounts of energy to be created and sustained ...
Ionut-Ovidiu TOMA +4 more
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Solar Energy, 2016 In this study, granular phase change material (PCM) composites were developed by absorbing paraffin into the pores of expanded perlite particles with two grades of particle size. Because of the different particle sizes and pore structures, the absorption
Huisu Chen, Lin Liu, Zeyu Lu
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Effect of heat treatment on preparation of expanded perlite from Indonesian perlite rock
AIP Conference Proceedings, 2021Expanded perlite is a multifunctional material that has been widely used in Industry. Its light, porous, and high-temperature resistance has made it well known used for lightweight and fire-resistant materials. In this study, the expanded perlite was prepared from perlite rock originally from Padang Pariaman district, West Sumatra, Indonesia, by ...
Agus Wahyudi +3 more
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Characterization of alkali bonded expanded perlite
Construction and Building Materials, 2018Abstract The thermal and mechanical properties of a lightweight alkali bonded material were investigated in correlation with the microstructure and porosity. The material was produced using fine granules of expanded perlite as raw powder and potassium di-silicate aqueous solution as alkaline activator, instead of the commonly used sodium silicate, to
Papa Elettra +6 more
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Adsorptive Desulfurization of Crude Oil with Expanded Perlite
Caucasian Journal of Science, 2022Crude oil; is a fossil energy source that has become possible to be used by refining processes and has a critical importance for the welfare, economic development, and quality of life of the society. As a result of the use of fossil fuels, carbon dioxide (CO2), sulfur oxide (SOx), and other greenhouse gases are released and these gases are expressed as
Abdullah ÖZKAN, Vildan ÖZKAN
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A chemical evaluation of expanding perlitic rocks
Materials Chemistry, 1976Abstract A correlation between chemical composition and expansion properties of a number of perlitic rocks is proposed. Samples, which through their mineral norms were represented by points within the silica rich zone on a feldspars-quartz diagram, did not expand properly, whereas a sample of excellent expansibility belonged to the feldspars rich ...
S. Meriani, F. Fontanive
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