Effect of extrusion on the mechanical and rheological properties of a reinforced poly(lactic acid): Reprocessing and recycling of biobased materials

Peinado, V. ; Castell, P. ; García, L. ; Fernández, A.

Resumen: The aim of this research paper is to study the behaviour of a common used biopolymer (Poly(Lactic Acid) (PLA)) after several reprocesses and how two different types of additives (a melt strength enhancer and a nanoadditive) affect its mechanical and rheological properties. Systematic extraction of extrudate samples from a twin-screw compounder was done in order to study the effect in the properties of the reprocessed material. Detailed rheological tests on a capillary rheometer as well as mechanical studies on a universal tensile machine after preparation of injected specimens were carried out. Results evidenced that PLA and reinforced PLA materials can be reprocessed and recycled without a remarkable loss in their mechanical properties. Several processing restrictions and specific phenomena were identified and are explained in the present manuscript.

Idioma: Inglés

DOI: 10.3390/ma8105360

Año: 2015

Publicado en: MATERIALS 8, 10 (2015), 7106-7117
ISSN: 1996-1944

Factor impacto JCR: 2.728 (2015)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 63 / 271 = 0.232 (2015) - Q1 - T1

Factor impacto SCIMAGO: 0.83 - Materials Science (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/PTQ-12-05223

Tipo y forma: Article (Published version)

Área (Departamento): Química Analítica (Departamento de Química Analítica)