Termomechanical Treatment of Recycled Polyethylene Terephthalate (PET) Refuse: A Way to Avoid its Waste

Alexandre Scari; Giovane Cipriano Júnior

doi:10.14295/vetor.v34i1.16312

Autores

Alexandre Scari Department of Mechanical Engineering, Federal University of Minas Gerais - UFMG, Belo Horizonte, Brazil
Giovane Cipriano Júnior Mechanical Engineer

DOI:

https://doi.org/10.14295/vetor.v34i1.16312

Palavras-chave:

Refugo de polietileno tereftalato (PET), Prensagem a quente, Furação e serramento, Propriedades mecânicas, Ensaio de compressão

Resumo

Durante o processo de reciclagem do polietileno terefitalato (PET), partículas com granulometria pequena (refugo) podem aderir ao parafuso das extrusoras e serem descartadas. Com o intuito de evitar este descarte, essa pesquisa realiza uma prensagem a quente deste refugo de modo a permitir o seu aproveitamento. Primeiro, determinou-se a duração ideal da prensagem a quente para este caso. Na sequência, o material resultante foi avaliado pelos processos de furação e serramento, e teve suas propriedades mecânicas obtidas por ensaios de compressão. O valor médio do modulo de elasticidade encontrado nos testes experimentais foi 1,13 GPa e, do limite de resistência, 68,5 MPa. Ainda, o material resultante apresentou performance satisfatória nos testes de furação e serramento.

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