Caracterización de biofilms de poda de olivo influencia del plastificante
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2024-01-15
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Jaén: Universidad de Jaén
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Los envases fabricados a partir de derivados del petróleo se están sustituyendo cada vez más por envases poliméricos de base biológica. La fabricación de este tipo de envases requiere un previo estudio de los biofilms de acetato de celulosa (AC), esta procedente de restos vegetales, en este estudio de la poda de olivo, y aunque es muy prometedor el uso de acetato de celulosa como material, necesita la adición de plastificantes para que sus propiedades se asemejen a polímeros derivados del petróleo. Este trabajo tiene como objetivo observar la influencia del plastificante citrato de trietilo (TEC), y optimizar el efecto del mismo con la utilización de diferentes porcentajes (0, 5, 10, 20 y 40%) añadidos al AC, para una posterior elección de la mejor relación AC-TEC tras comparar los resultados obtenidos. Las películas se caracterizaron mediante análisis de FT-IR, DRX, DSC, ensayo de absorción de agua y ensayos de tracción.
Packaging made from petroleum derivatives is increasingly being replaced by bio-based polymeric packaging. The manufacture of this type of packaging requires a previous study of the biofilms of cellulose acetate (AC), which comes from plant remains, in this study from olive pruning, and although the use of cellulose acetate as a material is very promising, it needs the addition of plasticizers so that its properties resemble those of petroleum-derived polymers. The aim of this work is to observe the influence of the plasticizer triethyl citrate (TEC), and to optimise its effect by using different percentages (0, 5, 10, 20 and 40%) added to the AC, in order to subsequently choose the best AC-TEC ratio after comparing the results obtained. The films were characterised by FT-IR, XRD, DSC, water absorption and tensile tests.
Packaging made from petroleum derivatives is increasingly being replaced by bio-based polymeric packaging. The manufacture of this type of packaging requires a previous study of the biofilms of cellulose acetate (AC), which comes from plant remains, in this study from olive pruning, and although the use of cellulose acetate as a material is very promising, it needs the addition of plasticizers so that its properties resemble those of petroleum-derived polymers. The aim of this work is to observe the influence of the plasticizer triethyl citrate (TEC), and to optimise its effect by using different percentages (0, 5, 10, 20 and 40%) added to the AC, in order to subsequently choose the best AC-TEC ratio after comparing the results obtained. The films were characterised by FT-IR, XRD, DSC, water absorption and tensile tests.