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碩士 === 國立中央大學 === 機械工程學系 === 103 === Iron oxide magnetic microparticles and poly(dimethylsiloxane) (MMPs-PDMS) composite was successfully demonstrated as a simple and high-strength reversible magnetic bonding method in this study. Dark-field (optical inspection impossible) and light-field (optical i...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2015
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| Online Access: | http://ndltd.ncl.edu.tw/handle/02718118476713696356 |
| Summary: | 碩士 === 國立中央大學 === 機械工程學系 === 103 === Iron oxide magnetic microparticles and poly(dimethylsiloxane) (MMPs-PDMS) composite was successfully demonstrated as a simple and high-strength reversible magnetic bonding method in this study. Dark-field (optical inspection impossible) and light-field (optical inspection possible) MMPs-PDMS casting were presented. This study showed that microchannel geometries have limited influence on dark-field casting which is similar to standard PDMS casting. Light-field casting performance was highly related to microchannel geometries. Effects of the microchannel layout, and the gap between the cover-PDMS layer and micromold substrate were detail investigated. MMPs-PDMS magnetic bonding experiments showed that thin PDMS film incorporating an MMPs-PDMS layer can effectively reduce surface roughness and enhance MMPs-PDMS reversible magnetic bonding strength. A thin PDMS film-coated dark-field MMPs-PDMS device exhibited the greatest bonding strength of 110 KPa. For a light-field MMPs-PDMS device with a thin PDMS film, a magnetic bonding strength of 81 KPa can be achieved.
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