Open cell foam with acoustic and structural properties. The manufacturing process is cost-effective, easy to implement and provides gradient of porosities able to absorb a broad range of frequencies, as well as a complete control of both porosity ratio and cell-size.
Primary Application Area: Materials, Chemical
Technology Development Status: Prototype
FIGURES OF MERIT
Value Proposition: We have developed a cost-effective process for a multi-functional open-cell foam that meets the most stringent mechanical and noise reduction requirements. Among various noise attenuation systems, open-cell foams are particularly interesting because their porous structure allows important interactions with sound waves, leading to good acoustic dissipation. However, they often lack interesting mechanical properties. We propose an open cell foam that positively combines both acoustic and mechanical properties. Its high porosity rate and porosity gradient are ideal for acoustic absorption over broad frequency band. This foam is also noticeable by its lightness, a serious advantage for the aerospace industry where the weight is strictly limited, and more globally in any transportation application. Since this foam possesses high mechanical properties, it can contribute to structural capabilities. Based on thermosets resins certified for flight (i.e the most stringent standards in the transportation sector), the proposed foam respects the flammability and resistance to flame propagation requirements. Although the development was focused on aeronautic standards, applications in other engineering fields, such as transportation and building construction, are also promising.
Organization Type: Academic/Gov Lab
Showcase Booth #: 43
GOVT/EXTERNAL FUNDING SOURCES