压力膨化处理和充电方法对PP蜂窝膜压电性的影响

功能材料, 2005, 36(3): 402-407.

1.同济大学,波耳固体物理研究所,上海,200092

2.同济大学,波耳固体物理研究所,上海,200092

3.同济大学,波耳固体物理研究所,上海,200092

基金项目: 德国大众汽车基金(I/77365) 国家自然科学基金(50073016)

Influences of pressure treatment and charging method on the piezoelectricity of cellular polypropylene film

以压力膨化技术处理改性商用SHD50型聚丙烯蜂窝膜(PP Cellular),它们的压电d33系数可达193pC/N,比未经处理的样品提高了约2个数量级.利用点电晕充电,接触法充电和动态压电d33系数测量研究了上述2种不同充电方法对SHD50膜压电性的影响.

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