Sheep Wool Thermal Insulating Mattresses Behaviour in the Water Vapours Presence

Abstract

The purpose of this paper is to analyse the sheep wool mattresses performances. The research looked the behaviour of 9 sheep wool mattresses types for the water vapour permeability assessment and for water sorption-desorption capacity in extreme humidity conditions, from very dry to very humid. The experimental results indicated a good water vapour permeability, a similar pattern of sorption - desorption phenomena, but with different rates and different ways of water adsorption on the samples surface, depending on ambient humidity. There are identified equations to model phenomena and it is experimentally demonstrated the contribution of these materials to maintain an optimal environment.