| 单层及多层PP蜂窝膜驻极体的压电性 |
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| 引用本文： | 邱勋林,夏钟福,王飞鹏.单层及多层PP蜂窝膜驻极体的压电性[J].功能材料,2006,37(2):207-209. |
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| 作者姓名： | 邱勋林 夏钟福 王飞鹏 |
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| 作者单位： | 同济大学,波耳固体物理研究所,上海,200092;同济大学,波耳固体物理研究所,上海,200092;同济大学,波耳固体物理研究所,上海,200092 |
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| 基金项目： | 中国科学院资助项目
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德国大众汽车基金 |
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| 摘 要： | 经压力膨化处理后,以正逆压电系数d33测量研究了一种经无栅电晕充电的国产商用聚丙烯蜂窝膜(cellular PP,商品名PQ50)驻极体的压电性.经过优化工艺参数压力膨化处理后的PQ50蜂窝膜呈现600pC/N以上的准静态压电系数,这一量值约为PVDF相关系数的40倍.而通过将单层PQ50蜂窝膜驻极体粘贴形成合理的多层结构,得到的复合膜系压电系数d33高达2010pC/N,约为PZT压电陶瓷相应系数的3倍.从而为拓宽这类新一代的非极性孔洞聚合物压电功能膜应用领域,推动其应用进程提供了一定的理论和技术依据.
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| 关 键 词： | PP蜂窝膜 压电性 压力膨化技术 复合膜系 |
| 文章编号： | 1001-9731(2006)02-0207-03 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005-09-06 |
Piezoelectricity of single-layer and multi-layer cellular polypropylene film electret |
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| QIU Xun-lin,XIA Zhong-fu,WANG Fei-peng.Piezoelectricity of single-layer and multi-layer cellular polypropylene film electret[J].Journal of Functional Materials,2006,37(2):207-209. |
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| Authors: | QIU Xun-lin XIA Zhong-fu WANG Fei-peng |
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| Affiliation: | Pohl Institute of Solid State Physics,Tongji University,Shanghai 200092,China |
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| Abstract: | The piezoelectricity of a pressure-treated cellular PP(commercially available,trade name PQ50) film electret was studied by measurement of direct-piezoelectric and inverse-piezoelectric coefficient d_(33).The sample expanded with optimal parameters has a quasi-static piezoelectric coefficient d_(33) of up to 600pC/N,which is about 40 times higher than that of PVDF.While the hybrid multi-layer system by properly combining single-layer cellular PP film electret shows a quasi-static piezoelectric coefficient d_(33) as large as 2010pC/N,which is around 3 times of that of well-known PZT ceramics.The results are theoretically and technically helpful for promoting the application of cellular PP film electret. |
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| Keywords: | cellular PP piezoelectricity pressure expansion hybrid multi-layer system |
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