Taming the Flow with Hyperbranched Polyamides as Melt Modifiers in Polyamide Composites.

Transport equipment manufacturers in the automotive and aerospace industries are focused on developing materials that enhance fuel efficiency and reduce carbon dioxide emissions. A significant approach is employing lightweight materials like aluminum, magnesium, and polymer-based composites. Polyamide-based composites, particularly nylon 66, as viable alternatives due to their excellent rigidity, chemical resistance, and thermal stability are investigated to address the limitations of traditional thermosetting resins, which are difficult to recycle and have lengthy molding processes that hinder mass production.

Assembly of Hollow Yttrium Oxide Spheres from Nano-Sized Yttrium Oxide for Advanced Passive Radiative Cooling Materials.

This study presents significant advancements in passive radiative cooling (PRC), achieved using assembled hollow yttrium oxide spherical particles (AHYOSPs). We developed PRC films with enhanced optical properties by synthesizing micro-sized hollow YO particles and integrating them into a polydimethylsiloxane (PDMS) matrix. The findings revealed that AHYOSPs achieved a remarkable solar reflectance of 73.