Data/hora: 22/06/2024 14:31:40

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 09/09/2003
Data da última atualização: | 01/03/2010
Autoria: | JOB, A. E.; ALVES, N.; ZANIN, M.; UEKI, M. M.; MATTOSO, L. H. C.; TERUYA, M. Y.; GIACOMETTI, J. A.
Afiliação: | Embrapa Instrumentação Agropecuária, São Carlos, SP.
Título: | Increasing the dielectric breakdown strength of poly(ethylene terephthalate) films using a coated polyaniline layer.
Ano de publicação: | 2003
Fonte/Imprenta: | Journal of Physics. D: Applied Physics, London, v. 36, p. 1414-1417, 2003.
Idioma: | Inglês
Conteúdo: | The dielectric strengthe of films made from poly(ethylene trerephthalate) (PET) coated with a thin layer of polyaniline (PANI) was studied. The PANI layer was deposited on the PET films by the "in situ" chemical polymerization method. The PANI layer of the PANI/PET films was undoped in NH4OH 0.1 M solution and re-doped with aqueous HC1 solution  under different pH values varying from 1 to 10. Electric breakdown measurements were performed by applying a voltage ramp and the results showed a dependence of the dielectric strength on the pH of the doping solution due to the changes in the electrical conductivity of the PANI layer. The dielectric strength of PET/PANI films treated under higher pH conditions showed an electric strength about 30% larges than the PET films, since it leads to a non-conductive PANI layer.
Palavras-Chave: | Material polimérico; PANI layer; PET films; Polímero; Polymer; Polymeric materials.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (8014-1) - UPC - SP - -- - PROCI-03.00058 -  - 2003.00058 - DIS