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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Elastomer Composite Based on EPDM Reinforced with Polyaniline Coated Curaua Fibers Prepared by Mechanical Mixing

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Autor(es):
Araujo, Joyce R. [1] ; Adamo, Cristina B. [2] ; Rocha, Werickson F. C. [1] ; Costa e Silva, Marcos V. [1] ; Carozo, Vitor [1, 3] ; Calil, Vanessa L. [1] ; De Paoli, Marco-A [2]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Inst Nacl Metrol Qualidade & Tecnol Inmetro, Div Metrol Mat, BR-25250020 Rio De Janeiro - Brazil
[2] Univ Estadual Campinas, Inst Quim, BR-13083970 Sao Paulo - Brazil
[3] Univ Fed Rio de Janeiro, Dept Engn Met & Mat, BR-21941972 Rio De Janeiro - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of Applied Polymer Science; v. 131, n. 7 APR 5 2014.
Citações Web of Science: 5
Resumo

Curaua fibers were used to reinforce elastomeric matrices with polyaniline (PAni) synthesized directly on the fiber surfaces to produce antistatic-reinforced composites. In this work, composites of poly(ethylene-co-propylene-co-diene) with curaua fibers coated with PAni were prepared by mechanical mixing in a counter-rotating twin rotor internal mixer. Then, mechanical and electrical properties of these composites were correlated to Raman and Fourier transformed infrared spectra (FTIR) using chemometric data analyze, such as principal component analysis (PCA) and hierarchical cluster analysis (HCA). Raman spectra showed correlation with electrical properties of conductive composites while FTIR spectra showed good correlation with mechanical properties. EPDM reinforced with PAni coated curaua fibers presented higher tensile strength and modulus than EPDM reinforced with pristine curaua fibers, indicating that the reinforcement effect was obtained. Chemical interaction between the phases occurs with formation of hydrogen bonding between the aminic nitrogens of PAni and the carbonyl groups of lignin of the fibers. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40056. (AU)

Processo FAPESP: 10/17871-6 - Preparação de um material elastomérico condutor a partir de compósitos de EPDM e fibras de Curauá recobertas com polianilina
Beneficiário:Cristina Battesini Adamo
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 10/17804-7 - Compósitos poliméricos
Beneficiário:Maria Isabel Felisberti
Linha de fomento: Auxílio à Pesquisa - Temático