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11. 发明授权

US08237324B2 Bistable electroactive polymers 有权
标题翻译：双稳电活性聚合物
公开(公告)号：US08237324B2
公开(公告)日：2012-08-07
申请号：US12635674
申请日：2009-12-10
申请人： Qibing Pei , Zhibin Yu
发明人： Qibing Pei , Zhibin Yu
IPC分类号： H02N3/00 , H01L41/04
CPC分类号： H01L41/098 , H01L41/094 , H01L41/0986 , H01L41/193
摘要： A bistable electroactive polymer transducer is provided for electrically actuated deformation of rigid electroactive polymer members. The polymers have glass transition temperatures (Tg) above ambient conditions and turn into rubbery elastomers above Tg and have high dielectric breakdown strength in the rubbery state. They can be electrically deformed to various rigid shapes with maximum strain greater than 100% and as high as 400%. The actuation is made bistable by cooling below Tg to preserve the deformation. The dielectric actuation mechanism includes a pair of compliant electrodes in contact with a dielectric elastomer which deforms when a voltage bias is applied between the pair of electrodes. In some of the configurations, the dielectric elastomer is also a shape memory polymer. The deformations of such bistable electroactive polymers can be repeated rapidly for numerous cycles.
摘要翻译：提供双稳态电活性聚合物换能器用于刚性电活性聚合物构件的电致变形。聚合物具有高于环境条件的玻璃化转变温度（Tg），并变成高于Tg的橡胶状弹性体，并且在橡胶状态下具有高介电击穿强度。它们可以电变形为各种刚性形状，最大应变大于100％，高达400％。通过冷却低于Tg使致动双稳态以保持变形。电介质致动机构包括与电介质弹性体接触的一对柔性电极，当在该对电极之间施加电压偏压时，电介质弹性体变形。在一些配置中，介电弹性体也是形状记忆聚合物。这种双稳态电活性聚合物的变形可以快速重复多次。

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