TY - JOUR
T1 - Fabrication and mechanical properties of carbon-fiber-reinforced polymer composites with lead-free piezoelectric nanoparticles
AU - Kurita, Hiroki
AU - Wang, Zhenjin
AU - Nagaoka, Hiroaki
AU - Narita, Fumio
N1 - Funding Information:
The authors greatly acknowledge the support of this work by the Japan Society for the Promotion of Science (JSPS), KAKENHI under Grant No. 19H00733 and the Japan Science and Technology Agency (JST), Matching Planner Program. They would also like to thank Nippon Chemical Industrial Co. Ltd. for providing piezoelectric nanoparticles.
Publisher Copyright:
© MYU K.K.
PY - 2020/7
Y1 - 2020/7
N2 - Wireless sensor networks (WSNs) are one of the key factors in realizing an Internet of Things (IoT) society. Piezoelectric materials that can convert mechanical energy into electric energy directly are highly promising as energy-harvesting materials for supplying power to wireless sensors. However, it is well known that lead zirconate titanate (PZT), which has the highest piezoelectric performance, is harmful to the environment. Moreover, the high density and brittleness of the piezoceramics hinder the fabrication of a long-life energy-harvesting device. In this study, we fabricated 0-3 structure piezoelectric composite materials consisting of lead-free piezoceramic nanoparticles, epoxy resin, and carbon-fiber-reinforced polymer (CFRP) and evaluated their mechanical properties. The maximum strain energy of the piezoelectric resin/CFRP composites was 20-40% larger than that of piezoelectric/epoxy composites. The maximum stress and flexural modulus of the lead-free piezoelectric potassium sodium niobate (KNN) nanoparticles/CFRP composite were approximately 5-10% larger than those of the barium titanate (BTO) nanoparticles/CFRP composite. Consequently, it is likely that better energy harvesting performance and mechanical properties can be obtained by using KNN nanoparticles than by using BTO nanoparticles.
AB - Wireless sensor networks (WSNs) are one of the key factors in realizing an Internet of Things (IoT) society. Piezoelectric materials that can convert mechanical energy into electric energy directly are highly promising as energy-harvesting materials for supplying power to wireless sensors. However, it is well known that lead zirconate titanate (PZT), which has the highest piezoelectric performance, is harmful to the environment. Moreover, the high density and brittleness of the piezoceramics hinder the fabrication of a long-life energy-harvesting device. In this study, we fabricated 0-3 structure piezoelectric composite materials consisting of lead-free piezoceramic nanoparticles, epoxy resin, and carbon-fiber-reinforced polymer (CFRP) and evaluated their mechanical properties. The maximum strain energy of the piezoelectric resin/CFRP composites was 20-40% larger than that of piezoelectric/epoxy composites. The maximum stress and flexural modulus of the lead-free piezoelectric potassium sodium niobate (KNN) nanoparticles/CFRP composite were approximately 5-10% larger than those of the barium titanate (BTO) nanoparticles/CFRP composite. Consequently, it is likely that better energy harvesting performance and mechanical properties can be obtained by using KNN nanoparticles than by using BTO nanoparticles.
KW - Bending strength
KW - Energy harvesting
KW - Piezoelectricity
KW - Polymer-matrix composites
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U2 - 10.18494/SAM.2020.2820
DO - 10.18494/SAM.2020.2820
M3 - Article
AN - SCOPUS:85090583055
VL - 32
SP - 2453
EP - 2462
JO - Sensors and Materials
JF - Sensors and Materials
SN - 0914-4935
IS - 7
ER -