Upcycling of carbon fiber-reinforced polymer composites

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO2 Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

“…Figure b shows Raman spectroscopy of pure CF, in which two high-intensity peaks were obtained at 1359.5 and 1599.1 cm –1 , depicted as the D and G bands of CF . The Raman spectra of TiO 2 -A, TiO 2 -S, and CF-loaded TiO 2 samples are presented in Figure c.…”

“…Figure 2b shows Raman spectroscopy of pure CF, in which two high-intensity peaks were obtained at 1359.5 and 1599.1 cm −1 , depicted as the D and G bands of CF. 23 The Raman spectra of TiO 2 -A, TiO 2 -S, and CF-loaded TiO 2 samples are presented in Figure 2c. The Raman peaks for the TiO 2 -A appeared at 141.1, 196.4, 397.1, 517, and 639.2 cm −1 , which corresponds to pure anatase phase of TiO 2 .…”

“…Due to their remarkable mechanical, thermal, and chemical characteristics, carbon materials and, in particular, carbon fibers (CFs) are frequently employed in a variety of industries, including aerospace, automotive, and sports. − Recently, carbon fiber-reinforced polymers (CFRPs) have gained considerable attention in different applications due to their low density, high strength, good corrosion resistance, and desirable comprehensive properties. , However, excessive use of these materials has created environmental concerns due to the generation of scraps and end-of-life components and an economic concern to recycle CFRP waste . The solid CFRP waste can be converted to pure carbon fibers (CFs) to be used as highly conductive materials in semiconducting applications .…”

Recycling and recovery of fiber-reinforced polymer composites for end-of-life wind turbine blade management

“…However, the economic benefit of the pyrolysis process of WTBs is low due to the high treatment cost (e.g., high energy consumption) and the complex pyrolysis products, which make the development of pyrolysis recycling of WTBs a big challenge. To reduce the energy consumption of the pyrolysis process, some emerging heating methods such as microwave-assisted pyrolysis, 60 photothermal pyrolysis, 61 and liquefaction 62,63 have been developed for recycling end-of-life WTBs. In particular, microwave-assisted pyrolysis reactors use high-frequency microwaves for heating owing to the advantages of rapid and uniform heating of the feedstock and facile control of the pyrolysis temperature.…”

Modifying the properties of polyamide 6 with high‐performance environmentally friendly nano‐ and microsized reinforcing materials

“…Therefore, it is worth exploring basalt fiber (BF) as a fiber reinforcement material for composites and its applicability in composites, as it can offer an excellent alternative to carbon fiber in specific applications. [4][5][6][7] The raw material for basalt fiber is natural volcanic basalt rock, which is easily and economically accessible by surface mining and is abundantly available. The fibers are produced directly from the molten rock without additives and do not require several technological steps.…”