This paper reviews recent developments and challenges of (Ba,Sr)TiO₃/polymer functional composites. The microstructure of barium-strontium titanate (Ba,Sr)TiO₃(BST)/polymer composites with different polymer matrices and the nature of the interface between the BST and polymer matrix is critical in the final dielectric properties. The effects of concentration, particle size and BST filler shape on the dielectric properties of BST/polymer composites are discussed. A theoretical model for the dielectric constants of ceramic/polymer composites and the fabrication of BST/polymer composites are described briefly. The development of a dielectric tunability for the BST/polymer composites is summarized. A dielectric tunability theoretical model is proposed based on our previous research results and the effects of several factors on the dielectric tunability of the composites are discussed, which contributes to a prediction of the dielectric tunability of the composites and provides important theoretical and research significance for future work.

本文综述了(Ba,Sr)TiO ₃ /聚合物功能复合材料的最新发展和挑战。钛酸锶钡(Ba,Sr)TiO ₃的微观结构具有不同聚合物基质的 (BST)/聚合物复合材料以及 BST 和聚合物基质之间的界面性质对最终介电性能至关重要。讨论了浓度、粒径和 BST 填料形状对 BST/聚合物复合材料介电性能的影响。简要描述了陶瓷/聚合物复合材料的介电常数的理论模型和 BST/聚合物复合材料的制备。总结了 BST/聚合物复合材料的介电可调性的发展。基于我们先前的研究成果，提出了介电可调理论模型，并讨论了几个因素对复合材料介电可调性的影响，