Produção Nacional
Revisado por pares
Effect of carbon nanotubes functionalization on properties of their nanocomposites with polycarbonate/poly(acrylonitrile‐butadiene‐styrene) matrix
2021; Wiley; Volume: 138; Issue: 21 Linguagem: Inglês
10.1002/app.50471
ISSN1097-4628
AutoresJonas Eichelberger Granada, Guilherme Kurz Maron, César Augusto Gonçalves Beatrice, Nelson M. Larocca, Eduardo Ceretta Moreira, José Henrique Alano, Luiz Antônio Pessan, Ruth Marlene Campomanes Santana, Neftalí Lênin Villarreal Carreño, Amanda Dantas de Oliveira,
Tópico(s)Polymer Nanocomposite Synthesis and Irradiation
ResumoAbstract In this work, a comparative study evaluating the influence of different functionalization of carbon nanotubes on the properties of nanocomposites with polymeric matrix was performed. A 50/50 wt% polycarbonate (PC)/poly(acrylonitrile‐butadiene‐styrene) (ABS) blend was used as polymeric matrix of the nanocomposites. The comparison was made between nanocomposites reinforced with covalently functionalized multiwall carbon nanotubes (MWCNTf) and MWCNTf/nanoclay hybrid functionalization. The effect on the mechanical and morphological properties of the nanocomposites was evaluated through tensile and Izod impact tests and scanning electron microscopy and transmission electron microscopy (TEM) analyses. The thermal characterization of PC/ABS blends and nanocomposites was performed by differential scanning calorimetry (DSC). Results showed that both methods of functionalization of MWCNTs increased the stiffness and impact resistance of the nanocomposites. TEM micrographs indicated the preferred location of the reinforcements in the SAN phase of ABS. Results from DSC indicated an increase in the thermal resistance of the nanocomposites.
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