Thermal properties of high density polyethylene composites with natural fibres: Coupling agent effect

Autor(es)

Araujo, J. R. ^[1] ; Waldman, W. R. ^[2] ; De Paoli, M. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Quim, BR-13084970 Campinas, SP - Brazil

^[2] Univ Estadual Norte Fluminense, Lab Ciencias Quim CCT, BR-28013602 Rio De Janeiro, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Polymer Degradation and Stability; v. 93, n. 10, p. 1770-1775, OCT 2008.
• Citações Web of Science: 172

Resumo

High density polyethylene composites with curaua fibres Were prepared using an intermeshing co-rotating extruder and two different coupling agents. The thermal stability of the components was studied by thermogravimetric and differential scanning analysis, as well as by the oxidation induction time. Maleic anhydride grafted polyethylene, used as coupling agent, affected the composite stability more markedly than did poly(ethylene-co-vinyl acetate). However, oxidation induction times were analogous for composites with and without coupling agents. Results also indicated that a higher fibre-matrix interaction precludes the crystallinity enhancement caused by the fibre. (C) 2008 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 04/15084-6 - Materiais poliméricos de baixo impacto ambiental
• Beneficiário: Marco-Aurelio de Paoli
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 06/58342-0 - Compositos de polietileno de alta densidade reforcados com fibra de curaua obtidos por extrusao/injecao.
• Beneficiário: Joyce Rodrigues de Araújo
• Modalidade de apoio: Bolsas no Brasil - Mestrado