Development of geopolymers of low thermal conductivity
authors Felizardo, V; Nandi, VD; Donadel, K; Novais, R; Labrincha, J; Zaccaron, A
nationality International
journal MATERIA-RIO DE JANEIRO
author keywords Thermal insulation; Geopolymers; Thermal conductivity
abstract Conventional thermal insulation materials, such as glass wool and extruded polystyrene, owned-in significant technical limitations. The geopolymers emerge as an alternative due to their properties. In this sense the objective of this work is to describe the develop geopolymers with low thermal conductivity. Samples of geopolymers were produced from metakaolin (Al2O3 center dot 2SiO(2)) which, due to its high reactivity, made it possible to produce inorganic polymers with interesting physical properties, which can be used for thermal insulation. The samples of aluminosilicate were activated with sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). Samples of light geopolymers were produced with addition of different percentages of a pore former (0.5, 1, 2, 3, 4%). The samples were characterized with respect to: compressive strength, water absorption, thermal conductivity, density and microstructure.
publisher UNIV FED RIO DE JANEIRO, LAB HIDROGENIO
issn 1517-7076
year published 2016
volume 21
issue 2
beginning page 429
ending page 436
digital object identifier (doi) 10.1590/S1517-707620160002.0040
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000377604600015
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 0.340
5 year journal impact factor 0.369
category normalized journal impact factor percentile 3.333
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg