Using computer software to precisely measure the contact angle of a sample.
A square shape sample cast using Modified Rigid Polyurethane Foam.
Rigid Polyurethane (PU) foams have been widely used in green buildings as thermal insulation materials due to their low densities, low thermal conductivity, low water absorption and high compressive strengths.
However, its application is limited to certain areas as unmodified PU foams are, by themselves, highly flammable. Upon exposure to an ignition source, PU foams are ignited almost instantaneously and burn rapidly. Thus, it is necessary to develop PU foams with fire retardancy.
In order to solve the problem, the overall objective of this proposal is to undertake research and develop an improved fire retardant PU foam composite that is able to make the best use of the advantages of the PU foam while mitigating or eliminating its disadvantages. The first phase of this project aims to investigate the optimized content of fire retardants in the matrix of a PU foam in terms of its physical properties and strength performance. The second phase of this project aims to investigate the sustainability and fire safety of the new composite.