South Tangerang, Indonesia – PU-based sandwich panels perform better than EPS-based alternatives in earthquake zones, according to new research. The work was carried out by a team in the Technology Centre for Materials at Indonesia’s National Research and Innovation Agency.
Composite sandwich panels are increasingly being used as the main component of walls for housing in earthquake-prone areas. The strength and other properties of the panels depend on the materials from which they are constructed: two thin glass-fibre reinforced polymer sheets on either side surround a core made from a lightweight material, usually expanded polystyrene or a polyurethane foam.
The team looked at a variety of properties of both EPS and PU based panels. Notably, the PU panels had a flexural strain more than 77% higher than those made with EPS. This, they suggest, make the PU panels more appropriate for use in earthquake zones than those made with EPS.
The work was presented at the International Conference on Advanced Material and Technology.