Reutilization of waste polymer plastics: a molecular dynamics study on toughness enhancement and interfacial mechanisms in SBS-modified asphalt

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Incorporating waste plastics enhances the mechanical properties of SBS-modified asphalt, improving its durability.
The study identifies significant surface energy increases for polyethylene, polypropylene, and poly acrylic compared to aged asphalt.
Molecular dynamics analysis reveals how plastics disperse in aged SBS-modified asphalt, improving its thermal stability.
Findings provide a theoretical basis for effective reutilization of waste plastics to improve asphalt performance.

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This research demonstrates enhanced crack resistance in SBS-modified asphalt, suggesting molecular interactions with polyethylene and polypropylene.

Nian et al. (2025) studied this question.

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This research demonstrates enhanced crack resistance in SBS-modified asphalt, suggesting molecular interactions with polyethylene and polypropylene.