Scale‐Dependent Tribological Response and Mechanical Consequences of Adding a SAN ‐Derived Anti‐Scratch Additive to ABS and PP
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| Format: | Artículo Open Access |
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2026
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| _version_ | 1867020407162273792 |
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| author | Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin |
| author_facet | Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin |
| collection | Wiley Open Access |
| contents | Scale‐Dependent Tribological Response and Mechanical Consequences of Adding a SAN ‐Derived Anti‐Scratch Additive to ABS and PP Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin Polymer Engineering & Science ABSTRACT The motorcycle sector increasingly relies on polymeric components for weight reduction, cost control and aesthetic performance, which makes surface integrity—and particularly scratch resistance—a critical design requirement. This study evaluates the effect of a commercial SAN‐based anti‐scratch masterbatch (MB), originally designed for styrenic matrices, at 10 wt% on two commonly used polymers, acrylonitrile–butadiene–styrene (ABS) and polypropylene (PP). The additive concentration was selected according to the manufacturer's recommendation for industrial applications. Compression‐molded plates were characterized by DSC and FTIR to assess thermo‐chemical modifications, while surface performance was probed at two length scales by nanoscratch (SPM) and pin‐on‐disk abrasion tests. Bulk mechanical behavior was examined via nanoindentation, tensile, fracture and impact testing. The additive reduced nanoscale friction and groove depth in ABS but produced only marginal or no improvement in PP. At the macroscale, ABS+MB exhibited a lower friction coefficient yet a small increase in wear rate; PP+MB displayed increased wear and a tendency toward lower tensile properties and stiffness. These outcomes are consistent with partial plastification and improved local compatibility in ABS, versus poor interfacial adhesion and decreased crystallinity in PP. By intentionally comparing a compatible (ABS) and a noncompatible (PP) matrix, the results highlight the strong dependence of additive efficacy on matrix chemistry and morphology, rather than suggesting general applicability. The findings emphasize that nanoscale improvements do not necessarily translate into better bulk wear performance and that additive formulation must be tailored to the polymer class. 10.1002/pen.70621 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/pen.70621 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_pen_70621 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Scale‐Dependent Tribological Response and Mechanical Consequences of Adding a SAN ‐Derived Anti‐Scratch Additive to ABS and PP Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin Polymer Engineering & Science Scale‐Dependent Tribological Response and Mechanical Consequences of Adding a SAN ‐Derived Anti‐Scratch Additive to ABS and PP Micaela Zubiría Federico Morales Gabriela Campos Caren Rosales Ricardo Dommarco Valeria Pettarin Polymer Engineering & Science ABSTRACT The motorcycle sector increasingly relies on polymeric components for weight reduction, cost control and aesthetic performance, which makes surface integrity—and particularly scratch resistance—a critical design requirement. This study evaluates the effect of a commercial SAN‐based anti‐scratch masterbatch (MB), originally designed for styrenic matrices, at 10 wt% on two commonly used polymers, acrylonitrile–butadiene–styrene (ABS) and polypropylene (PP). The additive concentration was selected according to the manufacturer's recommendation for industrial applications. Compression‐molded plates were characterized by DSC and FTIR to assess thermo‐chemical modifications, while surface performance was probed at two length scales by nanoscratch (SPM) and pin‐on‐disk abrasion tests. Bulk mechanical behavior was examined via nanoindentation, tensile, fracture and impact testing. The additive reduced nanoscale friction and groove depth in ABS but produced only marginal or no improvement in PP. At the macroscale, ABS+MB exhibited a lower friction coefficient yet a small increase in wear rate; PP+MB displayed increased wear and a tendency toward lower tensile properties and stiffness. These outcomes are consistent with partial plastification and improved local compatibility in ABS, versus poor interfacial adhesion and decreased crystallinity in PP. By intentionally comparing a compatible (ABS) and a noncompatible (PP) matrix, the results highlight the strong dependence of additive efficacy on matrix chemistry and morphology, rather than suggesting general applicability. The findings emphasize that nanoscale improvements do not necessarily translate into better bulk wear performance and that additive formulation must be tailored to the polymer class. 10.1002/pen.70621 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Scale‐Dependent Tribological Response and Mechanical Consequences of Adding a SAN ‐Derived Anti‐Scratch Additive to ABS and PP |
| topic | Polymer Engineering & Science |
| url | https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pen.70621 |