The Influence of Intercalated Graphite on the Mechanical
Properties of Phenolic Resins
R. R. S. Barnasky, R. A. Gouvêa, N. L. V. Carreño, S. S. Cava
Curso de Engenharia de Materiais, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas
R. Félix da Cunha, 809, CEP 96010-000, Pelotas, RS, Brazil
Phenolic resins are famous because of their thermal property, mechanical and dimensional
stability[1],[2].Samples of phenolic resins of Novolac® kind were prepared adding 10wt% of
intercalated graphite aiming to improve its mechanical resistance to compression. The
graphite intercalated was prepared using the method described by the literature [3], and the test
of compression was realized using an INSTRON ElectroPlus™ machine. The results showed
a significant increase on the resistence of compression of the phenolic resin sample that used
10% of intercalated graphite, when compared to the sample without aditive. The sample
without additive, with density of 1,22g/cm³, supported a pression of 6.11 Mpa. The sample
with graphite, with density of 1.33 g/cm³, resisted to a load of 11.80 MPa, with a great
increase of 93% on its mechanical property. In the future we pretend to study the influence of
other forms of carbon on the properties of the phenolic resins.
Keywords: phenolic resin, intercalated graphite.
Work supported by: CNPq, Finep, Fapergs and AEB
[1] P.E. FERRARI, M.C. REZENDE, Carbono Polimérico: Processamento e Aplicação,
Polímeros: Ciência e Tecnologia, 22-30, 1998.
[2] Z. DA-PENG and F. HONG, Mechanical and High-Temperature Properties of Glass
Fibers Reinforced Phenolic Composites, J. Reinf. Plast. Compos., 2008, 27, 13, 1449-1460,
2008.
[3] CHEN, G; WU, D; WENG, W; WU, C. Exfoliation of graphite flake and its
nanocomposites, Carbon (UK), Vol. 41, 619-621, 2003.
[email protected]; Félix da Cunha, 809; 96010-000; Pelotas-RS; Brazil