These days, the investigations of the physical properties of the insulating materials are very important. In this paper we report the measured water uptaking capabilities of a thermal insulating paint. They can be found in liquid phase, but we measured dried solid samples. The thin thermal insulators (insulator coatings) are starting to spread on the market of the building materials. The proper understanding of sorption behavior of the materials is important from the applied building technology point of view. Moisture sorption and desorption measurements were carried out on two samples with different geometry by using climatic chamber method. After drying the samples at 90 °C for one hour in the Venticell 111 type drying equipment they were wetted with a Climacell 111 type climate chamber, where the relative humidity (RH) was varied from 25% to 90% at 293 K for 2 hours. The samples were wetted for 2 and 4 hours as well. Sorption and desorption as well as kinetic curves are presented in this paper.
S Brunauer 1943 The Absorption of the Gases and Vapors. I. Physical Adsorption Princeton University Press Princeton.
S Brunauer L S Deming W E Deming E Teller 1940 On a theory of the van der Waals adsorption of gases Journal of American Chemical Society 62 1723–1732.
M Karoglou A Moropoulou Z B Maroulis M K Krokida 2005 Water sorption isotherms of some building materials Drying Technology 23 289–303.
A Lakatos F Kalmár 2012 Analysis of water sorption and thermal conductivity of expanded polystyrene insulation materials.
A Lakatos 2012 Method for the determination of sorption isotherms of materials demonstrated through soil samples International Review of Applied Sciences and Engineering 2 2 117–121.
A Lakatos 2012 Investigation of water sorption properties of different insulating materials M Mokryš A Lies kovský Proceedings in Advanced Research in Scientific Areas The 1st Virtual International Conference. Zilina, Szlovákia, 2012.12.03–2012.12.07 EDIS Zilina 1827–1831.
A Lakatos 2013 Mérések a Debreceni Egyetem Műszaki Kar Hőtechnikai Laboratóriumában Magyar Épületgépészet 1 4 11–13.
R F Richards D M Burch W C Thomas 1992 Water vapour sorption measurements of common building materials ASHRAE Transactions 98 2 475.
K S W Sing 1985 Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity Applied Chemistry 57 4 603–619.
L Stubberud G H Arwidsson C Graffner 1994 Water-solid interactions: I. A technique for studying moisture sorption/desorption International Journal of Pharmaceutics 114 55–64.