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Flexible piezoelectric composite material with high damping performance and preparation method thereof
The invention belongs to the field of piezoelectric functional materials, and discloses a flexible piezoelectric composite material with high damping performance and a preparation method thereof. The preparation method comprises the following steps that (1) piezoelectric ceramic powder is prepared; (2) template freezing casting is carried out on the piezoelectric ceramic powder to prepare piezoelectric ceramic with a three-dimensional porous structure, wherein a template used in the template freezing casting is a camphene refrigerant, and the solidification treatment temperature adopted in the template freezing casting is 5-35 DEG C; (3) the piezoelectric ceramic with the three-dimensional porous structure is covered with a polymer solution so as to obtain piezoelectric composite ceramic; and (4) vacuum degassing is carried out, and then solidification is carried out so as to obtain the flexible piezoelectric composite material. The flexible piezoelectric composite material and the preparation method thereof have the advantages that a key module refrigerant adopted in the preparation method is improved, camphene is used as the refrigerant and can be rapidly solidified at the temperature of 5-35 DEG C, and compared with a common template which usually needs expensive liquid nitrogen low temperature for rapid solidification in the prior art, the preparation process is greatly simplified.
本发明属于压电功能材料领域，公开了一种具有高阻尼性能的柔性压电复合材料及其制备方法，该制备方法是：(1)制备压电陶瓷粉体；(2)对压电陶瓷粉体进行模板冷冻铸造，制备得到三维多孔结构的压电陶瓷；其中，模板冷冻铸造所使用的模板为莰烯冷冻剂，模板冷冻铸造所采用的凝固处理温度为5℃～35℃；(3)将聚合物溶液覆盖三维多孔结构的压电陶瓷，得到压电复合陶瓷；(4)真空除气后固化，即可得到柔性压电复合材料。本发明通过对制备方法所采用的关键模块冷冻剂进行改进，以莰烯作为冷冻剂可以在5℃～35℃下快速凝固，与现有技术通常需要昂贵的液氮低温以快速固化的普通模板相比，大大简化了制备工艺。
Flexible piezoelectric composite material with high damping performance and preparation method thereof
The invention belongs to the field of piezoelectric functional materials, and discloses a flexible piezoelectric composite material with high damping performance and a preparation method thereof. The preparation method comprises the following steps that (1) piezoelectric ceramic powder is prepared; (2) template freezing casting is carried out on the piezoelectric ceramic powder to prepare piezoelectric ceramic with a three-dimensional porous structure, wherein a template used in the template freezing casting is a camphene refrigerant, and the solidification treatment temperature adopted in the template freezing casting is 5-35 DEG C; (3) the piezoelectric ceramic with the three-dimensional porous structure is covered with a polymer solution so as to obtain piezoelectric composite ceramic; and (4) vacuum degassing is carried out, and then solidification is carried out so as to obtain the flexible piezoelectric composite material. The flexible piezoelectric composite material and the preparation method thereof have the advantages that a key module refrigerant adopted in the preparation method is improved, camphene is used as the refrigerant and can be rapidly solidified at the temperature of 5-35 DEG C, and compared with a common template which usually needs expensive liquid nitrogen low temperature for rapid solidification in the prior art, the preparation process is greatly simplified.
本发明属于压电功能材料领域，公开了一种具有高阻尼性能的柔性压电复合材料及其制备方法，该制备方法是：(1)制备压电陶瓷粉体；(2)对压电陶瓷粉体进行模板冷冻铸造，制备得到三维多孔结构的压电陶瓷；其中，模板冷冻铸造所使用的模板为莰烯冷冻剂，模板冷冻铸造所采用的凝固处理温度为5℃～35℃；(3)将聚合物溶液覆盖三维多孔结构的压电陶瓷，得到压电复合陶瓷；(4)真空除气后固化，即可得到柔性压电复合材料。本发明通过对制备方法所采用的关键模块冷冻剂进行改进，以莰烯作为冷冻剂可以在5℃～35℃下快速凝固，与现有技术通常需要昂贵的液氮低温以快速固化的普通模板相比，大大简化了制备工艺。
Flexible piezoelectric composite material with high damping performance and preparation method thereof
一种具有高阻尼性能的柔性压电复合材料及其制备方法
JIANG SHENGLIN (author) / YANG YING (author) / LU JUNLING (author) / ZHANG GUANGZU (author) / LI JING (author)
2021-08-31
Patent
Electronic Resource
Chinese
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