Publications by authors named "Lucia Doyle"
Recent advancements in thermoplastics within the polyaryletherketone (PAEK) family have enhanced additive manufacturing (AM) potential in fields like aerospace and defense. Polyetheretherketone (PEEK), the best-studied PAEK, faces limitations in AM due to its fast crystallization, which causes poor inter-filament bonding and warping. This study investigated alternative, slow-crystallizing PAEK polymers: polyetherketoneketone (PEKK-A) and AM-200, a PEEK-based copolymer.
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- Insulating polymeric foams enhance energy efficiency and play a vital role in fighting climate change by minimizing thermal conductivity and improving mechanical properties.
- Current research often overlooks the hazardous nature of raw materials; a shift towards sustainability in polymer foam development calls for a circular economy and holistic design changes.
- Key research needs include better material characterization, understanding aging behavior, optimizing polymer chains, analyzing shear effects on cell nucleation, and improving processing techniques for more efficient foam production.
The polyurethane foam in district heating pre-insulated pipes has a critical role to play both as thermal insulation and as load bearing element, as it serves as bond between the medium pipe and the casing. Hence, knowledge on how the foam behaves under multiaxial stresses is of great importance for the design as well as for aging predictions of the network. It is known that cell shape anisotropy in polymeric foams leads to anisotropy in its mechanical properties.
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