Título: Manufacture of a custom-made AFO orthosis based on abaca nonwoven composite (Musa textilis) and resin

Autor(es): MORA MUÑOZ ELSA SULAY, POSSO PASQUEL JOSE RAFAEL, VACA SIERRA TULIA NOHEMI, JUAN RIVERA YEPEZ

Fecha de publicación: 03-may-2024

Resumen: Orthoses are devices designed to provide support, stability, and correction to the ankle and foot. This research focuses on the manufacturing of a mold for a prototype orthosis aimed at developing a low-cost manufacturing methodology. There are a large number of materials that can be used in an orthopedic device, and in this experimentation, a composite material of 80 g/cm2 abaca nonwoven fiber, epoxy resin, and polyester was used. The experimental planning was executed with a 22 factorial design with a total of 12 experimental runs, and parameters such as the effect of resin type and nonwoven fabric were evaluated. The response variables were tensile strength (TS) and flexural strength (FS), and the samples were prepared according to the procedure described in ISO 1421:1998 (tensile strength). The TS was evaluated using the Titan 5 James Heal Dynamometer, while the FS was evaluated according to the procedure in ASTM D7264 using the three-point bending test technique on the AUTOGRAPH ma- chine. The statistical analysis was performed using Statgraphics Centurion soft- ware. It was demonstrated that there is a significant difference in tensile and flexural strength when changing the levels of resin type and nonwoven fabric. This research concludes that it is feasible to manufacture orthoses with natural abaca fibers together with thermosetting plastic resins such as polyester and epoxy.

Palabras clave: Abaca, Musa Textilis, Nonwoven, Orthosis

ISSN: 23673370

Tipo publicación: Artículo