Avaliação da biodegradação de compósitos de poliéster e amido com fibra de coco verde em solo simulado e ambiente marinho

• Autor(a) principal: Souza, Renideivi Paula
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/15736
• topic: biodegradable polymer; composite; coconut fiber; Polímero biodegradável; Compósito; Fibra de coco verde; CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA::QUIMICA ORGANICA::POLIMEROS E COLOIDES

The use of biodegradable polymers is one of the ways to minimize the large volume discharges of polymer materials which tend to increase causing more damage to the environment. There are several methods for evaluation of polymer biodegradation which can contribute to the development of new biodegradable materials. In this dissertation was evaluated the biodegradation of a polymer composite commercial with matrix based on polyester and starch and green coconut fiber. Two methods were used, simulated soil and marine environment. The biodegradation of the composites was evaluated by mass loss, optical microscopy (OM), Scanning Electron Microscopy (SEM), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA) and Infrared Spectroscopy (FTIR). In addition, it was performed a comparison between the biodegradation of the material in both environments. The biodegradation rate of the marine environment is greater than the simulated ground