发明名称 |
METHOD FOR MANUFACTURING POLYMERIC PIEZOELECTRIC FILM AND POLYMERIC PIEZOELECTRIC FILM |
摘要 |
A method for producing a polymer piezoelectric film, comprising: a process of moving and stretching a crystalline polar polymer sheet in contact with a conductive stretching roller having a diameter of at least 30 mm and a surface friction coefficient which has been reduced to such a level as to allow a relative displacement of the crystalline polar polymer sheet in contact with the conductive stretching roller: and a step in the process of applying a polarization voltage between an electrode disposed opposite to the crystalline polar polymer sheet and the conductive stretching roller to polarize the crystalline polar polymer sheet. As a result, it is possible to stably produce a polymer piezoelectric film exhibiting stable piezoelectricity over a large area. Especially, it is possible to obtain polymer piezoelectric film exhibiting a temperature-dispersion peak temperature of d31 piezoelectricity coefficient at least 120° C. and surface scratches extending in one direction. |
申请公布号 |
HK1135510(A1) |
申请公布日期 |
2012.12.28 |
申请号 |
HK20100101999 |
申请日期 |
2010.02.25 |
申请人 |
KUREHA CORPORATION |
发明人 |
MORIYAMA, NOBUHIRO;NAKAMURA, KEN'ICHI;SUZUKI, KAZUYUKI;SUZUKI, KEITAROU |
分类号 |
H01L41/08;H01L;H01L41/193;H01L41/22;H01L41/257;H01L41/45 |
主分类号 |
H01L41/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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