Electrical and Piezoelectric Behavior of Polyamide/PZT/CNT Multifunctional Nanocomposites
Electrical and Piezoelectric Behavior of Polyamide/PZT/CNT Multifunctional Nanocomposites
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DOI：
10.1002/adem.201300519
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发表时间：
2014-08-01
影响因子：
3.6
通讯作者：
Lacabanne, Colette
中科院分区：
文献类型：
--
作者：
Carponcin, Delphine;Dantras, Eric;Lacabanne, Colette
采用挤出法制备了三相聚酰胺 11 (PA 11)/锆钛酸铅 (PZT)/碳纳米管 (CNT) 复合材料。研究了无机颗粒对导电复合材料电性能的影响以及导电颗粒对有机/无机复合材料铁电性能的影响。无机颗粒不会改变碳纳米管电渗流路径的建立，无论是渗流阈值还是达到绝缘体-导电转变之上的电导率。仅添加0.2%体积的CNT即可提高两相PA 11/PZT复合材料的介电常数。这种三相复合材料可用于增强驱动、能量收集和阻尼性能。
Three-phase polyamide 11 (PA 11)/lead zirconate titanate (PZT)/carbon nanotubes (CNT) composites are elaborated by extrusion. The influence of inorganic particles on the electrical properties of conductive composites and the influence of conductive particles on the ferroelectric properties of organic/inorganic composites are both studied. Inorganic particles do not modify the establishment of the electrical percolation path of CNTs either regarding the percolation threshold value or the conductivity reached above this insulator-conductive transition. The dielectric permittivity of two-phase PA 11/PZT composites is improved with the addition of only 0.2% in volume of CNTs. This three-phase composite could be proposed for actuation, energy harvesting and damping performances enhancement.