Abstract
In this paper, a series of calcium copper titanate/multi-walled carbon nanotubes (MWCNTs)/polyarylene ether nitriles composite films were obtained by ultrasonic shocking under the condition of constant temperature water bath (80 °C). The composite films were characterized by scanning electron microscope, differential scanning calorimetry (DSC), thermogravimetric analysis. It is confirmed that the MWCNTs were combined with the matrix well and the composite films possess excellent thermal stability. The glass transition temperatures of the composite films obtained from DSC curves were in a range of 224–230 °C. The initial decomposition temperatures and the maximum decomposition rate temperatures were all above 480 °C. Besides, the dielectric and mechanical characterizations showed that the composite films possess excellent dielectric properties and flexibility. When the content of MWCNTs reached 6 wt%, the dielectric constant of the composite film increased to 35 (1 kHz), yet the dielectric loss is just 0.38 (1 kHz). Moreover, the composite films cannot break even though they were cured into columns of several layers, indicating the outstanding flexibility.
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