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2024-10-28

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cc-by (c) Zambrano Membrives, Carla et al., 2024
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/230017

Recycling of Plastics in the Automotive Sector and Methods of Removing Paint for Its Revalorization: A Critical Review

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https://doi.org/10.3390/polym16213023

Resum

The presence of plastics in the automotive industry is increasingly significant due to their lightweight nature, which contributes to reducing fuel consumption and CO2 emissions while improving versatility and mechanical properties. Polypropylene (PP) and other polyolefins are among the most commonly used materials, especially for components such as bumpers. The use of composite materials, i.e., a combination of different polymers, improves the properties through synergistic effects, thereby also improving the performance of the final product. In the automotive industry, PP reinforced with 20% talc or CaCO3 is commonly used. The mechanical recycling of polypropylene bumpers is the most common type of recycling. However, challenges arise during this process, such as the presence of impurities like paint, chemical contaminants from previous use, and polymeric impurities from different polymers mixed into the polymer matrix, among others. Paint affects both the aesthetic quality and the mechanical and intrinsic properties of the recycled material. This review aims to analyze the main methods reported in the literature, focusing on those with low environmental impact. Furthermore, these methods are classified according to their capacity, effectiveness, substrate damage, environmental hazards, and economic feasibility. It also aims to offer a comprehensive overview of the mechanical recycling of plastic waste in the automotive industry.

Matèries

Reciclatge de residus, Polímers, Pintura, Automòbils

Matèries (anglès)

Waste recycling, Polymers, Painting, Automobiles

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Articles publicats en revistes (Ciència dels Materials i Química Física)

Citació

ZAMBRANO MEMBRIVES, Carla, et al. Recycling of Plastics in the Automotive Sector and Methods of Removing Paint for Its Revalorization: A Critical Review. Polymers. 2024. Vol. 16. ISSN 2073-4360. [consulted: 5 of July of 2026]. Available at: https://hdl.handle.net/2445/230017

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