Friction Optimization of Talc Powder-Reinforced Elastomers for Prosthetic Foot Application

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Abstract

Patients with lower limb amputation usually use prosthetic feet. Elastomeric material is an important part of prosthetic feet since it can determine their safety and lifetime. The elastomeric material should have high friction for safety, and at the same time it should have low wear for a longer lifetime. This research is aimed to study the optimum formulation of talc-powder-reinforced silicone elastomer to obtain high friction during sliding contact. The Taguchi orthogonal array L9 formula is used to achieve the aforementioned goal. The experiments use multiple parameters, namely, the type of silicone, the type of surface texture, the amount of catalyst, and the amount of talc powder. The results show that the combination of RTV 683, a smooth texture, 4% of catalyst, and 60% of talc powder is the most optimum composition to obtain the highest frictional force. It has a higher friction force in comparison with the imported products, and, at the same time, it has comparable wear with the imported products. The hardness of the optimized materials is comparable with the imported products. However, the tensile and tear strengths of the optimized materials need to be improved.

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APA

Khafidh, M., Suryawan, D., Kistriyani, L., Naufal, M., & Ismail, R. (2023). Friction Optimization of Talc Powder-Reinforced Elastomers for Prosthetic Foot Application. Prosthesis, 5(1), 88–99. https://doi.org/10.3390/prosthesis5010007

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