@Article{jrm.2020.013976,
AUTHOR = {Jinxing Li, Jingjing Liao, Jun Zhang, Xiaojian Zhou, Hisham Essawy, Guanben Du},
TITLE = {Effect of Post-Added Water Amount on Pre-Concentrated Bark Foaming Materials by Mechanical Stirring},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {8},
YEAR = {2020},
NUMBER = {12},
PAGES = {1607--1616},
URL = {http://www.techscience.com/jrm/v8n12/40547},
ISSN = {2164-6341},
ABSTRACT = {In this study, pre-concentrated bark, furfuryl alcohol and other biomass
raw materials were used to prepare foaming materials by high-speed mechanical
stirring without using a foaming agent. We investigated the effect of the postadded water amount on the properties of foaming materials. In particular, we
determined basic physical properties of these materials, including the limiting
oxygen index (LOI), porosity, thermal conductivity, thermogravimetric analysis,
pore size distribution, and microstructure. The results of scanning electron microscopy (SEM) indicated that the pore size distribution was uniform and the pore
size increased with increasing water volume. Thermogravimetric analysis (TG/
DTG) showed that when the temperature reached 410°C, the foam was easily
decomposed, the final residual mass was only 2.8%, and water addition had little
effect on it. Moreover, the amount of post-added water is 5–30 g, the density and
compression strength of the foamed materials gradually decreased, while the
degree of pulverization increased. LOI ranged from 26.1% to 30.79%, and porosity ranged from 81% to 83%. The change in water volume greatly affected the
foam’s performance, the performance of foamed material deteriorated as the
amount of added water increased, but the effect on thermal conductivity was
not very obvious. The highest thermal conductivity was only 0.0179 W/(m·K),
still providing excellent thermal insulation.},
DOI = {10.32604/jrm.2020.013976}
}