To address the challenge of electronic waste, research institutions have successfully developed environmentally friendly PCB materials using plant cellulose as a reinforcement and biodegradable resin as a matrix. This substrate has stable performance under normal usage conditions, but can decompose into harmless substances within a few months in specific composting environments. Although it cannot yet replace mainstream FR-4 for high-performance devices, it has commercial potential in consumer level scenarios such as disposable medical sensors and short-term monitoring labels, marking a crucial step for the PCB industry towards a circular economy.
