Efeito do rácio de r-PET extrudido no filamento

Efeito do rácio de r-PET extrudido no filamento

Andres González Hernández / Roberto Bautista García / Rodolfo Barragan Ramirez

103,56 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Ciencia, ingeniería y tecnología medioambientales
ISBN:
9786209273230
103,56 €
IVA incluido
Disponible

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No México, o PET é a principal fonte de contaminação, do solo à água. A estratégia de reutilização de resíduos urbanos faz parte dos objectivos estabelecidos nos Objectivos de Desenvolvimento Sustentável da agenda 2030. A economia circular incentiva a valorização da reutilização de resíduos, como as garrafas PET urbanas pós-consumo. O PET é um material residual muito abundante e pode ter potencial para ser utilizado na impressão 3D. No entanto, o PET sofre de degradação hidrolítica e rigidez em temperaturas de arrefecimento variáveis, promovendo a não fluidez do material durante a extrusão. Por outro lado, o PP é um polímero leve, flexível e com elevada resistência ao impacto. Por estas razões, o presente trabalho tem como objetivo formular misturas de r-PET/v-PP (10,30 e 50%) a partir de resíduos de garrafas PET pós-consumo, extrudidas em filamentos (3mm de diâmetro) para estudar a densidade, a estrutura cristalina e a deformação plástica instantânea por ensaio de impacto, a fim de aumentar a fluidez do PET na extrusão e diminuir a fragilidade no processo de arrefecimento no filamento.

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