Dynamically crosslinked-interpenetrating networks for sustainable 3D-printed elastomeric foams.

Summary: Scientists have created a new kind of squishy, bouncy foam using 3D printing. Normally, 3D-printed materials are too tough to be made into good foams using eco-friendly methods. To fix this, the team mixed special chemical bonds that can break and re-form easily. This allows the material to puff up perfectly into a strong, stretchy foam. Even better, when the foam gets old or damaged, it can be melted down and used again without losing its strength. This makes it great for things like shock absorbers and flexible sensors, while also being very good for the planet.