Magnetic microparticle-polydimethylsiloxane composite for reversible microchannel bonding
| Autor: | Yueh Pu Lee, Chia Wen Tsao |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Composite number Iron oxide 02 engineering and technology 01 natural sciences Article chemistry.chemical_compound microchannel General Materials Science Composite material Microparticle Materials of engineering and construction. Mechanics of materials Organic and Soft Materials (Colloids Liquid Crystals Gel Polymers) Microchannel Polydimethylsiloxane magnetic microparticle 010401 analytical chemistry technology industry and agriculture reversible bonding equipment and supplies 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry TA401-492 polydimethylsiloxane (pdms) 0210 nano-technology human activities TP248.13-248.65 Biotechnology |
| Zdroj: | Science and Technology of Advanced Materials, Vol 17, Iss 1, Pp 2-11 (2016) Science and Technology of Advanced Materials |
| ISSN: | 1878-5514 1468-6996 |
| DOI: | 10.1080/14686996.2016.1140301 |
| Popis: | In this study, an iron oxide magnetic microparticles and poly(dimethylsiloxane) (MMPs-PDMS) composite material was employed to demonstrate a simple high-strength reversible magnetic bonding method. This paper presents the casting of opaque-view (where optical inspection through the microchannels was impossible) and clear-view (where optical inspection through the microchannel was possible) MMPs-PDMS. The influence of the microchannel geometries on the casting of the opaque-view casting was limited, which is similar to standard PDMS casting. Clear-view casting performance was highly associated with the microchannel geometries. The effects of the microchannel layout and the gap between the PDMS cover layer and the micromold substrate were thoroughly investigated. Compared with the native PDMS bonding strength of 31 kPa, the MMPs-PDMS magnetic bonding experiments showed that the thin PDMS film with an MMPs-PDMS layer effectively reduced the surface roughness and enhanced MMPs-PDMS reversible magnetic bonding strength. A thin PDMS film-coated opaque-view MMPs-PDMS device exhibited the greatest bonding strength of 110 kPa, and a clear-view MMPs-PDMS device with a thin PDMS film attained a magnetic bonding strength of 81 kPa. |
| Databáze: | OpenAIRE |
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