Category: Transient Plane Source
Abstract: The purpose of this study was to produce an environmentally friendly foam using tannins, that did not contain any formaldehyde or blowing agents. Two experimental tannin foams were compared to two conventional foams, one containing both formaldehyde and blowing agents, and the other containing only a blowing agent. A variety of physical properties were assessed to determine if the new green formulation would be an appropriate replacement, this included thermal conductivity, pressure, expansion rate, and hardening rate. Results determined that the green formula produced a foam of similar quality to the conventional design, and in fact improved the mechanical resistance. Furthermore, their low flammability and low cost makes them a safe, economic, green option.
Reference: Industrial Crops and Products 49 (2013) 17–22