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A study of the recycling and stability of flexographic photopolymer plates

Authors

  • Cristina C. Cordeiro,

    1. Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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  • Adriano M. Bernardin,

    1. Departamento de Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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  • Luciano Da Silva,

    1. Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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  • Márcio A. Fiori,

    1. Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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  • R. Benavides,

    1. Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna H. 140, Saltillo, Coahuila, México
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  • Leonardo W. Oenning,

    1. Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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  • Marcos M. S. Paula

    Corresponding author
    1. Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
    • Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma 88806-000, Santa Catarina, Brazil
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Abstract

Flexographic photopolymer plates have a wide range of commercial applications despite the fact that recycling of such materials is difficult. In consequence, there is a large bulk of leftover material around the world. In this research, the photopolymer plate waste products, identified as styrene-butadiene rubber (SBR)/polyester are blended into common polypropylene (PP) and ethylenevinylacetate (EVA) resins at different loading percentages. PP and EVA are used as the polymer matrix and the recovered styrene-butadiene rubber (SBR) material as the filler. Evaluation of the mechanical, spectroscopic, thermal and chemical properties, as well as morphology, is done by means of scanning electron microscopy (SEM). Mechanical results show that elongation strongly depends on the matrix polymer: the greater the amount of solid-sheet photopolymer (SSP), the smaller the elongation. No specific interactions were detected; however, thermal degradation and transitions were displaced, suggesting some miscibility. More homogeneity is seen for EVA blends, with no significant chemical attack detected. It is possible to reuse these recycled materials in blends with PP and EVA resins. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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