Dispersing Carbon Nanotubes in Phenolic Resin using an Aqueous Solution

Autor(es)

Botelho, Edson C. ^{[1, 2]} ; Edwards, Elilton R. ^[2] ; Bittmann, Birgit ^[1] ; Burkhart, Thomas ^[1]

Afiliação do(s) autor(es)

^[1] Inst Verbundwerkstoffe GmbH, D-67663 Kaiserslautern - Germany

^[2] Univ Estadual Sao Paulo, Dept Mat & Tecnol, BR-12516410 Guaratingueta, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Brazilian Chemical Society; v. 22, n. 11, p. 2040-2047, NOV 2011.
• Citações Web of Science: 4

Resumo

The ability to control the carbon nanotube (CNT) dispersion in polymers is considered the key to most applications of nanotube/polymer composites. The carbon nanotube dispersion into water with different surfactants, as well as its incorporation into phenolic resins, was investigated. Ultrasonication of liquid suspensions was used to prepare stable dispersions. In order to evaluate the best surfactant to be used, light scattering and UV-Visible spectroscopy were employed. The structure of CNT reinforced of phenolic resin was analyzed in function of the concentration and type of surfactant, sonication power and time. It was also evaluated the influence in the dispersion by using the glass temperature transition properties being obtained by dynamic mechanical analyses and impact energy. (AU)

• Processo FAPESP: 09/06335-9 - Processamento e caracterização de compósitos poliméricos com nanotubos de carbono com aplicações aeroespaciais
• Beneficiário: Edson Cocchieri Botelho
• Modalidade de apoio: Bolsas no Exterior - Novas Fronteiras