枝晶簇四方相钛酸钡的制备及其电场响应性能的研究

为了提高BaTiO3粒子在含水复合弹性体中的电场响应能力,本文采用简单的水热合成法,在不引入任何表面活性剂的情况下,仅通过对反应温度和溶液pH值的调控获得了新颖形貌的钛酸钡粒子。通过借助X射线衍射(XRD)、拉曼光谱(Raman)、扫描电子显微镜(SEM)及接触角(Contact Angle)测量等手段对粒子的微观结构和表面特性进行表征发现:该粒子为高纯四方相枝晶簇结构,具有良好的亲水性,而且在含水复合弹性体中对电场具有优良的响应能力。

Preparation and Electric-field Response Behavior of Tetragonal Barium Titanate Crystal Druse

In order to improve the barium titanate (BaTiO₃) particles response to electric field in hydrous elastomers, a simple surfactant-free hydrothermal method was used to synthesize the new BaTiO₃, only by regulating the reaction temperature and pH of the solution. The particle was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and contact angle (CA). The results show that the BaTiO₃ crystal druse is in highly pure tetragonal phase and has a good hydrophilicity. The crystal druse possesses finer electric-field response performances when it is dispersed in the gelatin aqueous elastomers.