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首页> 外文期刊>Journal of Applied Polymer Science >Copper Phthalocyanine Oligomer Grafted Acrylic Elastomer Nanocomposites with High Dielectric Constants
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Copper Phthalocyanine Oligomer Grafted Acrylic Elastomer Nanocomposites with High Dielectric Constants

机译：高介电常数的铜酞菁低聚物接枝丙烯酸弹性体纳米复合材料

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摘要

For many applications of dielectric elastomer (DE) actuators, it is desirable to endow the DE with a high dielectric constant (ε), high breakdown field, and good flexibility. In this study, a high-e nanocomposite acrylic elastomer (ACM)-g-copper phthalocyanine (CuPc) was fabricated, in which the CuPc oligomer was grafted onto the backbone of ACM. This grafted composite exhibited several benefits over the physically blended one. Transmission electron microscopy micrographs indicated that the size of the grafted CuPc was in the range 15-30 nm, which was more than 25 times smaller than that of the simply blended one. At room temperature, ε of ACM-g-CuPc (with 15 wt % CuPc) reached 303 at 100 Hz. The remarkable enhancement in the dielectric response could be attributed to the greatly strengthened exchange coupling effect and the Maxwell-Wagner-Sillars polarization mechanism.
机译：对于介电弹性体（DE）致动器的许多应用，希望赋予DE高介电常数（ε），高击穿场和良好的挠性。在这项研究中，制备了高电子含量的纳米复合丙烯酸弹性体（ACM）-g-铜酞菁（CuPc），其中将CuPc低聚物接枝到ACM的骨架上。与物理共混的复合材料相比，这种接枝的复合材料具有多种优势。透射电子显微镜显微照片表明，接枝的CuPc的尺寸在15-30nm范围内，比简单混合的CuPc的尺寸小25倍以上。在室温下，ACM-g-CuPc（含15 wt％CuPc）的ε在100 Hz时达到303。介电响应的显着增强可归因于大大增强的交换耦合效应和麦克斯韦-瓦格纳-西勒斯极化机制。

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