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Related Experiment Video

Updated: Sep 12, 2025

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
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Interface-Tunable Fluoropolymer Coatings Enabled by Surface-Engineered Recycled Tire Rubber.

Reymark D Maalihan1, Sanjida Ferdousi2, Marcel Roy B Domalanta1

  • 1Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58102, United States.

ACS Applied Materials & Interfaces
|August 9, 2025
PubMed
Summary

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3D Computational Modeling of Blast Wave Transmission from External Ear to Cochlear Hair Cells.

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Functional and histological assessment of 3D-printed helmet and hearing protection devices in preventing blast-induced auditory injury in Chinchillas.

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Vitamin D regulates lipid metabolism in granulosa cells via the FABP3-associated PI3K/Akt pathway in polycystic ovary syndrome.

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Upcycling of Vulcanized Rubber via Controlled Backbone Cleavage and Functionalization.

Journal of the American Chemical Society·2026

This study enhances fluoropolymer coatings using functionalized ground tire rubber (fGTR). The modified rubber improves flexibility and fracture energy, offering a sustainable solution for durable, corrosion-resistant barriers.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Surface Engineering

Background:

  • Fluoropolymer coatings offer excellent chemical resistance but suffer from poor adhesion and structural integrity in harsh conditions due to low surface energy.
  • Improving the performance of fluoropolymer coatings requires strategies to enhance interfacial adhesion and mechanical properties without compromising inherent stability.

Purpose of the Study:

  • To develop a scalable interfacial engineering strategy for enhancing the performance of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) coatings.
  • To investigate the use of functionalized ground tire rubber (fGTR) as a sustainable additive to improve adhesion, mechanical properties, and corrosion resistance of fluoropolymer coatings.

Main Methods:

  • Postconsumer ground tire rubber (GTR) was functionalized via surface-initiated grafting of poly(acrylic acid) to create fGTR.
Keywords:
circular materials designcorrosion resistancefluoropolymersground tire rubberinterfacial engineering

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  • fGTR was incorporated into PVDF-HFP at varying concentrations, with optimal performance observed at 7 wt %.
  • Coating performance was evaluated using mechanical testing (elongation at break, fracture energy), electrochemical impedance spectroscopy (EIS), finite element modeling (FEM), and cyclic corrosion testing.

    • Main Results:

    • The optimal 7 wt % fGTR composite exhibited a nearly 3-fold increase in elongation at break and more than double the fracture energy compared to unmodified PVDF-HFP.
    • EIS data showed sustained barrier performance, with a low-frequency impedance modulus of approximately 1.3 × 10^9 ohm·cm^2 after 30 days in salt solution.
    • FEM and cyclic corrosion tests confirmed improved stress distribution and enhanced long-term durability of the fGTR-modified coatings.

    Conclusions:

    • Surface-functionalized GTR acts as an effective, interface-tunable additive in thin-film fluoropolymer coatings.
    • This approach provides a sustainable pathway to create multifunctional, corrosion-resistant barrier systems with significantly improved mechanical properties.
    • The developed strategy demonstrates the potential of upcycled materials in high-performance coating applications.