Carbon Fibre Recycling and Sustainability
topic
Recycling methods: pyrolysis at 450-700°C (removes matrix, recovers fibres with 20-30% strength loss due to sizing removal and surface damage), fluidized bed (better fibre recovery, 10-20% loss), solvolysis in supercritical fluids (preserves sizing, minimal degradation), and electrochemical (emerging, fiber-friendly). Recycled carbon fibre (rCF) market: $200M currently, projected $1B+ by 2030. Applications: automotive non-structural, sporting goods, random mat for compression molding.
Role
Carbon fibre's high embodied energy (200-600 MJ/kg vs. production from precursor) and growing end-of-life waste (aircraft, wind blades) drive recycling innovation; rCF provides 30-50% cost reduction vs. virgin, enabling new applications despite property degradation.