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Multiwall carbon nanotube modified vinylester and vinylester – based hybrid resins

2005; Elsevier BV; Volume: 37; Issue: 9 Linguagem: Inglês

10.1016/j.compositesa.2005.09.003

1878-5840

O. Gryshchuk, J. Karger‐Kocsis, Ralf Thomann, Zoltán Kónya, Imre Kiricsi,

Conducting polymers and applications

Purified, catalytic chemically vapor deposited multiwall carbon nanotubes (MW-CNT) were incorporated in vinylester (VE), vinylester-urethane (VEUH) and vinylester/epoxy (VE/EP) systems in up to 2 wt% amount. The MW-CNT dispersion was studied by transmission electron microscopy (TEM). The electrical conductivity, thermomechanical, fracture mechanical and failure properties of the related nanocomposites were investigated. It was found that the MW-CNT of very high aspect ratio and thus prone for nesting can be only partly disintegrated. The effect of MW-CNT on the electrical conductivity was much larger than on the fracture mechanical performance. As MW-CNT can be treated as a flexible reinforcement its reinforcing efficiency is likely better in tough than in brittle thermosets.