PZT / MWNTs / EP Piezoelectric Damping Composites Conductivity and Dynamic Mechanical Analysis

Abstract:

According to piezoelectricity and electrical conductivity theory, the ternary system piezoelectric damping composites containing piezoelectric ceramic powder (PZT) / multi-walled carbon nanotubes (MWNTs) / epoxy resin (EP) were developed. Through the conductive and mechanical performance test of composites, the paper showed the piezoelectric damping energy dissipation mechanism of polymer composites. Results indicated that: the loss factor of materials would increase with the increasing of PZT content. When the content of PZT exceeded a certain value, tanδ would increase dramatically. When the content of MWNTs is 2%, tanδ reached a high value. This meant composites played the role of shock absorbing by conducting electricity from piezoelectric effect of PZT to external circuit.

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 70-74
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.70
• Online since: March 2013
• Authors: Chong Guang Zang, Xian Peng Cao
• Keywords: Epoxy Resin (ER), Multi-Walled Carbon Nanotube (MWCNT), Piezoelectric Ceramic Powder, Piezoelectric Composites

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