AI Insight
Researchers developed a new type of covalent adaptable network (CAN) material that remains stable during normal use but can be chemically depolymerized on demand to recover valuable materials from printed circuit boards. The kinetically inert CANs allow high-performance electronics to function reliably while enabling complete separation and recovery of metals, glass fibers, and polymers at end-of-life through a controlled chemical process. This approach achieved near-complete recovery of copper and other critical materials from complex electronic waste without the degradation typical of current recycling methods.
Why it matters
Electronic waste is one of the fastest-growing waste streams globally, with most printed circuit boards currently incinerated or landfilled due to the difficulty of separating their composite materials. This technology could enable circular economy approaches in electronics manufacturing by allowing valuable materials to be recovered and reused while reducing mining demand and environmental contamination from e-waste.
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