The structures realized using sandwich technologies combine low weight with high energy absorbing capacity, so they are suitable for applications in the transport industry (automotive, aerospace, shipbuilding industry) where the “lightweight design” philosophy and the safety of vehicles are very important aspects. While sandwich structures with polymeric foams have been applied for many years, ...

The general objective of our work is the optimization of the long-wavelength acoustic properties of real sound proofing foam samples. In this purpose, our general methodology is to use the method of periodic unit cell (PUC) reconstruction of porous media which consists of two main steps. In the first one, the critical local geometry features governing long-wavelengths acoustic wave propagation ...

A wide range of polymeric scaffolds have been intensively studied for use as implantable and temporal devices in tissue engineering. Biodegradable and biocompatible scaffolds having a highly open porous structure and good mechanical strength are needed to provide an optimal microenvironment for cell proliferation, migration, and differentiation, and guidance for cellular in-growth from host tis...

The aim of this research was to study the biodegradation of a polymer derived from castor oil, which is a renewable, natural material that is a practical alternative for the replacement of traditional polyurethane foams. Due to its molecular structure, which contains polyester segments derived from vegetable oil, the polymeric surface is susceptible to microorganism attack. This study tested th...

Many materials require functionally graded cellular microstructures whose porosity is engineered to meet specific requirements of diverse applications (e.g. polymers and/or ceramics that mimic biological material such as soft tissue and bone). It has been shown in previous work that the bubble growth rate of a polymeric foam can be influenced by the surrounding acoustic environment and, once so...

Mycelium-based biofoam has the potential to become an alternative petroleum-polymeric based-foam by utilising fungal mycelium and lignocellulosic material as matrix substrate, respectively. The materials, which were rice husk, sawdust, sugarcane bagasse, is crucial for production of biofoam, tested a substrate Pleurotus ostreatus growth during screening procedure. Three factors varied mycelium-...