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    Biobased Additives as Biodegradability Enhancers with Application in TPU-Based Footwear Components

    Isabel Patrícia Fernandes1, Mariana Barbosa1, Joana Soares Amaral2, Vera Pinto3, José Luís Rodrigues3, Maria José Ferreira3, Maria Filomena Barreiro1*

    Journal of Renewable Materials, Vol.4, No.1, pp. 47-56, 2016, DOI:10.7569/JRM.2015.634126

    Abstract Among the wide variety of materials employed in the manufacture of shoes, thermoplastic polyurethanes (TPUs) are one of the most widely used. Given its widespread use, and associated waste management problems, the development of more biodegradable and evironmentally compatible solutions is needed. In this work, a polyester-based TPU used in the footwear industry for outsoles production was modifi ed by compounding with lignin, starch and cellulose at content of 4% (w/w). The biodegradability was evaluated by using agar plate tests with the fungi Aspergillus niger ATCC16404, the Gram-negative bacteria Pseudomonas aeruginosa ATCC9027 and an association of both (consortium), and soil… More >

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