Busca avançada
Ano de início
Entree
(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.)

Antistatic-reinforced biocomposites of polyamide-6 and polyaniline-coated curaua fibers prepared on a pilot plant scale

Texto completo
Autor(es):
Araujo, J. R. [1] ; Adamo, C. B. [2] ; Costa e Silva, M. V. [1] ; De Paoli, M. -A. [2]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Inst Nacl Metrol Qualidade & Tecnol, Div Metrol Mat, BR-25250020 Duque De Caxias, RJ - Brazil
[2] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Polymer Composites; v. 34, n. 7, p. 1081-1090, JUL 2013.
Citações Web of Science: 14
Resumo

Curaua fibers were used with success as a reinforcing agent in polyamide-6, however, for several applications, an antistatic dissipation property is also desirable and the incorporation of an intrinsically conducting polymer is a suitable way to promote this. The novelty of this work is the simultaneous introduction of these two properties, antistatic and reinforcement, using one filler, obtained by depositing polyaniline on the surface of short curaua fibers. Nearly 5-30 wt% of these modified fibers were dispersed by extrusion in polyamide-6, the composites were injection molded and characterized by electrical, mechanical, morphological, and rheological properties. The tensile strength of the polyamide-6 composites reinforced with 5 and 30 wt% of polyaniline coated curaua fibers, was 56% higher and 23% lower than the values obtained for pure polyamide-6, respectively. Also, the composite reinforced with 5 wt% of fibers, when processed with lower shearing rates, showed conductivity in the range of antistatic materials, 4 Scm-1. Scanning electronic microscopy and infrared spectroscopy showed an improvement in interfacial adhesion in PA-6/CF-PAni composites. The composite prepared with 5 wt% of polyaniline coated curaua fibers gave the best balance between the electrical and the mechanical properties. Extrusion and injection molding methods used here are suitable for continuous large scale production. POLYM. COMPOS., 34:1081-1090, 2013. (c) 2013 Society of Plastics Engineers (AU)

Processo FAPESP: 10/17804-7 - Compósitos poliméricos
Beneficiário:Maria Isabel Felisberti
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 08/53059-4 - Células solares orgânicas e híbridas baseadas em nanotubos de carbono e fulerenos modificados
Beneficiário:Luiz Carlos Pimentel Almeida
Linha de fomento: Bolsas no Brasil - Doutorado