Examinando por Autor "Zuleta Gil, Alejandro Alberto"

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    Development and characterization of a biocomposite material reinforced with a novel cañaflecha fiber in a matrix of green banana flour and PLA
    (Universidad de los Andes, 2025-01-09) Barajas López, Laura Gabriela; Porras Holguin, Niyireth Alicia; Arias Tapias, Mary Judith; Zuleta Gil, Alejandro Alberto; Ríos Ratkovich, Nicolás
    This work focused on the study of the chemical, physical, thermal and morphological properties of 5 native fibers from the Caribbean region and the study of their potential use as reinforcement in green composite materials. The cañaflecha (Gynerium sagittatum), iraca (Carludovica palmata), enea (Typha latifolia), junco (Juncus ramboi) and majagua colorá (Pseudobombax septenatum) fibers, were selected because their use in mechanical applications by the communities of the region is widely evidenced, such as in the construction of houses and in the construction of loading tools. However, there are really few studies or none on the actual mechanical properties of these materials and their characterization. In addition, based on the fiber that exhibits the best mechanical properties a composite material is developed from thermoplastic starch obtained from green banana flour (Musa paradisiaca), the TPS is mixed with PLA in a 60:40 ratio and the morphological, physicochemical, mechanical and thermal properties of the mixture are evaluated by varying the type of organic compatibilizer, citric acid (AC) or tartaric acid (AT) and the percentage of fiber reinforcement (15 or 30%).