Influence of carbon nanotube concentration and sonication temperature on mechanical properties of HDPE/CNT nanocomposites

Autor(es)

Ferreira, F. V. ^[1] ; Menezes, B. R. C. ^[1] ; Franceschi, W. ^[1] ; Ferreira, E. V. ^[2] ; Lozano, K. ^[3] ; Cividanes, L. S. ^[1] ; Coutinho, A. R. ^[4] ; Thim, G. P. ^[1]

Afiliação do(s) autor(es)

^[1] Technol Inst Aeronaut ITA, Dept Aeronaut & Mech Engn, Sao Jose Dos Campos, SP - Brazil

^[2] Fed Univ Parana UFPR, Dept Stat, Curitiba, Parana - Brazil

^[3] Univ Texas Rio Grande Valley, Mech Engn Dept, Edinburg, TX - USA

^[4] Methodisth Univ Piracicaba, Lab Carbon Mat, Santa Barbara Doeste, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES; v. 25, n. 9, p. 531-539, 2017.
• Citações Web of Science: 15

Resumo

Carbon nanotube (CNT) reinforced high-density polyethylene (HDPE) composites were prepared by a melt mixing procedure. The mechanical properties were analyzed using a central composite design where key factors were CNT concentration and sonication temperature during the sample preparation process. The results indicated that the optimum values were 0.8wt% for the concentration of CNT and 55 degrees C for the sonication temperature. The samples obtained at optimal conditions were systematically studied. Nanoindentation analysis showed an increase of 43% in Vickers hardness of the nanocomposite when compared to pure polymer. The improvement on the mechanical property is related to changes in the thermo-physical and viscoelastic properties of the nanocomposite. (AU)

• Processo FAPESP: 13/20218-0 - Nanocompósito CNT/PEAD: efeito da funcionalização com alcanos
• Beneficiário: Filipe Vargas Ferreira
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 14/17492-6 - Efeito da funcionalização de CNTs com alcanos de diversos tamanhos nas propriedades do nanocompósito CNT/PEAD
• Beneficiário: Gilmar Patrocínio Thim
• Modalidade de apoio: Auxílio à Pesquisa - Regular