Piezo and Dielectric Properties of PHB-PZT Composite

Autor(es)

Malmonge, J. A. ^[1] ; Malmonge, L. F. ^[1] ; Fuzari, Jr., G. C. ^[1] ; Malmonge, S. M. ^[2] ; Sakamoto, W. K. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, UNESP, Depto Fis & Quim, BR-15385000 Ilha Solteira, SP - Brazil

^[2] Univ Estadual Campinas, Fac Engn Mecan, LABIOMEC, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Polymer Composites; v. 30, n. 9, p. 1333-1337, Sept. 2009.
• Área do conhecimento: Engenharias - Engenharia de Materiais e Metalúrgica
• Citações Web of Science: 6
• Assunto(s): Materiais não metálicos Materiais cerâmicos Cerâmica piezoelétrica Capacitores Semicondutores Chumbo

Resumo

Flexible piezoelectric composite films made of poly (3-hydroxybutyrate) (PHB) in powder form and lead zirconate titanate (PZT) ceramic powder were obtained by mixing both powders and pressing at 1808C. The effect of PZT on PHB crystallization was investigated using differential scanning calorimetry (DSC). The relative dielectric constant and dielectric loss factor were analyzed by dielectric spectroscopy and the a-relaxation of amorphous phase of PHB was observed. After suitable polarization, the composite film displayed piezoelectric activity indicating the possibility of using that material as a sensor. (AU)

• Processo FAPESP: 01/13187-4 - Sensores piezo e piroeletricos inteligentes.
• Beneficiário: Walter Katsumi Sakamoto
• Modalidade de apoio: Auxílio à Pesquisa - Regular