Nickel niobate (NiNb₂O₆) was used to modify the barium titanate (BaTiO₃) ceramics, the obtained NiNb₂O₆‐BaTiO₃ ceramics possess better dielectric performances than that of raw BaTiO₃. By adding NiNb₂O₆‐BaTiO₃ into poly(arylene ether nitriles) (PEN) polymer, a series of NiNb₂O₆‐BaTiO₃/PEN composite films with different NiNb₂O₆‐BaTiO₃ contents were prepared via solution casting method. The morphology, thermal, mechanical, dielectric properties, and flexibility of the obtained NiNb₂O₆‐BaTiO₃/PEN composite films were investigated detailedly. As the filler content increases, the tensile modulus of NiNb₂O₆‐BaTiO₃/PEN composite films increases gradually, while the tensile strength decreases. Thermal and flexibility analysis shows that the addition of the NiNb₂O₆‐BaTiO₃ fillers does not affect the thermal and flexibility properties endowed by the PEN matrix. The dielectric constant of the composites almost linearly increases from 3.7 (1 kHz) to 15.3 (1 kHz) as the filler content increases from 0 to 40 wt%. Besides, results show that NiNb₂O₆‐BaTiO₃/PEN composites exhibit higher dielectric constant than that of BaTiO₃/PEN. The as‐prepared NiNb₂O₆‐BaTiO₃ will be a more promising filler to prepare polymer‐ceramic composites for organic film capacitors.

中文翻译：

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NiNb2O6-BaTiO3 /聚亚芳基醚腈复合薄膜电介质，具有优异的柔韧性和高介电常数，适用于有机薄膜电容器

用铌酸镍（NiNb ₂ O ₆）对钛酸钡（BaTiO ₃）陶瓷进行改性，所得的NiNb ₂ O ₆－BaTiO ₃陶瓷具有比原始BaTiO ₃更好的介电性能。通过将NiNb ₂ O ₆ ‐BaTiO _3添加到聚（亚芳基醚腈）（PEN）聚合物中，可以得到一系列具有不同NiNb ₂ O ₆ ‐BaTiO ₃的NiNb ₂ O ₆ ‐BaTiO ₃ / PEN复合膜。内容物通过溶液流延法制备。详细研究了所得NiNb ₂ O ₆ -BaTiO ₃ / PEN复合膜的形貌，热，机械，介电性能和柔韧性。随着填料含量的增加，NiNb ₂ O ₆ -BaTiO ₃ / PEN复合膜的拉伸模量逐渐增加，而拉伸强度降低。热和挠性分析表明，添加了NiNb ₂ O ₆ -BaTiO ₃填料不会影响PEN基质赋予的热和柔韧性。随着填料含量从0到40 wt％的增加，复合材料的介电常数几乎从3.7（1 kHz）线性增加到15.3（1 kHz）。结果表明，NiNb ₂ O ₆－BaTiO ₃ / PEN复合材料的介电常数高于BaTiO ₃ / PEN。制备好的NiNb ₂ O ₆ -BaTiO ₃将成为制备有机薄膜电容器用聚合物陶瓷复合材料的更有前途的填料。