Data/hora: 24/09/2024 08:37:11

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