Research of Improving the Surface Roughness of IPMC by Using PDMS and Its Application in Deformable Mirror
Date Issued
2012
Date
2012
Author(s)
Tsai, Shih-An
Abstract
Ionic polymer metallic composite (IPMC) is a composite material that could perform a bending deformation in an electric field produced by a small bias voltage. A necessary roughening process is generally included in the conventional IPMC fabrication. The roughening process brought several advantages, such as better adhesion and actuation performance. However, the resulted large surface roughness becomes an obstacle in some IPMC applications, especially deformable mirror.
In this thesis, we preserve the roughening process and advance an additional fabrication using polydimethylsiloxane (PDMS) to improve the surface roughness as well as other properties of IPMC. The root-mean-square surface roughness is lowered to 28 nm, and the surface-improved IPMC could be successfully actuated under a 3-volt bias voltage. We also find that the duration under atmosphere is 15 times longer than that of the non-improved IPMC. The effect of the surface-improved fabrication on reflectance, surface scattering content, resistance and actuation performance are discussed as well. At last, we adopt the surface-improved method to realize a patterned IPMC deformable mirror, and the deformation is measured.
Subjects
IPMC
Deformable Mirror
roughness
duration.
Type
thesis
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