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All Journal Advance Sustainable Science, Engineering and Technology (ASSET)
Putra Bagas Veryanto
Universitas Islam Indonesia
Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Toward Durable Prosthetic Feet: Mechanical and Tribological Evaluation of Polyurethane Elastomers Muhammad Khafidh; Putra Bagas Veryanto; Donny Suryawan; Rifky Ismail; Alfiana Fitri Istiqomah; Budi Setiyana; Deni Fajar Fitriyana; Jayatin
Advance Sustainable Science Engineering and Technology Vol. 8 No. 4 (2026): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i4.2981

Abstract

Elastomeric materials play a crucial role in determining the durability, comfort, and service life of prosthetic feet. Although various elastomers have been explored for this application, systematic evaluation of polyurethane formulations that integrate mechanical and tribological performance remains limited. This study investigates two types of polyurethane elastomers (A70 and A80) with different polyol–isocyanate ratios to identify an optimal formulation for prosthetic foot applications. Mechanical properties were evaluated through tensile, tear, hardness, and density tests, while friction and wear behavior were assessed using a pin-on-disk tribometer. A commercial prosthetic foot elastomer available in the Indonesian market was used as a benchmark. The results show that A80-based formulations generally provide superior tensile and tear strength compared to A70 variants. Among all specimens, A80-3 exhibits the lowest wear volume and stable friction performance, while maintaining hardness comparable to the commercial product. Although its density remains higher than the benchmark, the improved wear resistance indicates potential for extended service life. These findings offer practical guidance for durability-oriented material selection in the development of cost-efficient prosthetic feet.
Co-Authors Alfiana Fitri Istiqomah Budi Setiyana Donny Suryawan Fitriyana, Deni Fajar Jayatin Muhammad Khafidh Rifky Ismail