Influence of chemical treatment on the recycling of composites before pyrolysis

Abstract Recycling of carbon fibers is one the upcoming global research topics in composite engineering. This work investigates influence chemical treatment on recovery from fiber reinforced plastic before pyrolysis. The pretreatment was achieved using a zinc chloride/ethanol solution. pyrolysis process conducted sliding furnace. effect such pre-treatment thermal degradation behaviour determined by thermogravimetric analyser (TGA). An original sample also investigated for benchmarking. After process, tensile properties were measured single tester. surface functional groups and graphitization degree recovered characterized X-ray photoelectron spectroscopy (XPS) Raman spectroscopy. morphology recycled SEM. Pristine included study During devolatilisation temperature pre-impregnated prepregreduced around 40-50°C peak lower compared to that prepreg. reduces conventional process. nitrogen with small amount air, loose recovered, their clean. similar decrease detected fiber.