Repetitive mechanical recycling of post-consumer high impact polystyrene from yogurt cups: A pilot-scale performance assessment at different reprocessing cycles

Velásquez, Eliezer; López-de-Dicastillo, Carol; Tapia, Andrea; Garrido, Luan; Catalán, Luciano; Valenzuela, Ximena; Guarda, Abel; Galotto, María

doi:10.1016/j.resconrec.2023.107368

Resources, Conservation and Recycling

2024

DOI: 10.1016/j.resconrec.2023.107368

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Repetitive mechanical recycling of post-consumer high impact polystyrene from yogurt cups: A pilot-scale performance assessment at different reprocessing cycles

Eliezer Velásquez,

Carol López-de-Dicastillo,

Andrea Tapia

et al.

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2024

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Cited by 2 publications

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New method for extraction, identification, and quantification of non‐intentionally added substances in polystyrene

Pérocheau Arnaud,

Michelet,

Olivero

et al. 2024

Vinyl Additive Technology

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An efficient one‐step extraction method was developed for the recovery of additives and non‐intentionally added substances (NIAS) from polystyrene, performed at room temperature for 2.33 h, without grinding to avoid fostering the formation of NIAS unrelated to polymer processing. Solvent use (39.2 mL/g) was greatly reduced compared with extraction conditions previously reported. The study of NIAS is analytically challenging but with high importance since their presence is a potential threat to human health and to the environment while reducing plastic potential recyclability. For an understanding of NIAS formation and influence of processing parameters, a systematic approach was taken, using virgin polystyrene mixed with known quantities of standard additives as model materials (Irganox_1076, Tinuvin_326, Irgafos_168). The degradation of one additive was identified by NMR and GC–MS. Precise multiple‐point quantification with internal standard was performed by GC–MS, measuring a 5.1 wt% Irgafos_168 degradation, with additives LOD ranging from 0.55–0.95 ppm. Evaluation of analytical challenges, such as matrix effects, was discussed and quantified. This method will help the quality control of virgin and recycled PS materials, including food contact ones, and improve the knowledge of PS processing impact on NIAS formation.

show abstract

New method for extraction, identification, and quantification of non‐intentionally added substances in polystyrene

Pérocheau Arnaud,

Michelet,

Olivero

et al. 2024

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

Reflecting the aging behavior of polystyrene nanoplastics in the seawater through Young's modulus by atomic force microscope

Zhang,

Lu,

Huang

et al. 2024

Journal of Hazardous Materials

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Repetitive mechanical recycling of post-consumer high impact polystyrene from yogurt cups: A pilot-scale performance assessment at different reprocessing cycles

Cited by 2 publications

References 27 publications

New method for extraction, identification, and quantification of non‐intentionally added substances in polystyrene

New method for extraction, identification, and quantification of non‐intentionally added substances in polystyrene

Reflecting the aging behavior of polystyrene nanoplastics in the seawater through Young's modulus by atomic force microscope

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