Although foam core insulation was a popular choice in the past, foam core made of extruded polystyrene insulation (XPS) is being traded out for more eco-friendly options. Over the decades ...

and polystyrene–polyethylene–polypropylene–polystyrene (SEPS) to create an unusual SEPS@HDPE core–shell structure, where SEPS serves as the core and HDPE as the shell. The phase morphology ...

California’s ban on polystyrene was one of the biggest wins for environmentalists in the state’s recent history. It went into effect on Jan. 1 — but no one, including the governor’s office ...