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由碳酸钡、钛酸丁酯和乳酸制得钛酸钡多晶相.WAXD和TEM 分析表明, 该钛酸钡具有典型的钙钛矿结构, 粒径为30～50 nm . 此钛酸钡纳米粉被成功地分散于聚酰胺酸中并制得聚酰亚胺(TDPA/ODA) 杂化材料. TEM 和AFM 表明低含量 (< 1% BaTiO3) 的杂化膜, 无机物是以< 50 nm的球状颗粒均匀分散于聚酰亚胺基体中, 高含量 (如30% ) 杂化膜是具有光滑表面的韧性薄膜. 后者介电常数与压电常数比纯聚酰亚胺提高了近一倍.
Barium titanate polycrystal phase was prepared from barium carbonate, butyl titanate and lactic acid .WAXD and TEM analysis showed that the barium titanate possesses the typical perovskite structure with particle size of 30-50 nm. Powders were successfully dispersed in polyamic acid and prepared polyimide (TDPA / ODA) hybrid materials. TEM and AFM showed low content (<1% BaTiO3) Of the spherical particles uniformly dispersed in the polyimide matrix, a high content (eg, 30%) of the hybrid film is a tough surface with a ductile film, the latter dielectric constant and piezoelectric constant than pure polyimide increased nearly Times