Microwave irradiation-based rapid curing of PDMS for microfluidic applications

Katare, Prateek; Gorthi, Sai Siva

doi:10.1007/s10404-020-02348-0

Cited by 2 publications

(2 citation statements)

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“…[30] The interest in this methodology increased in recent years since some authors have been successfully applied methods using commercial microwave ovens to achieve fast PDMS curing envisaging microfluidic applications. [31][32][33] The silicone used in this study is cross-linked by Ptcatalysed hydrosilylation reaction, that is, carried out at Si H bonds have an exponential increase when the temperature is raised from 55 C to 75 C; the reaction is completed in nearly 5 minutes, as reported by Bhattacharya and coworkers. [34] Therefore, it is reasonable to state that that PDMS crosslinking can be completed within 10 minutes, as observed in this study and that the process is accelerated by the heating effect provided by microwave irradiation.…”

Section: Silicone/pmma Blends Characterizationmentioning

confidence: 59%

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Microwave‐assisted processing of silicone/PMMA blends for maxillofacial prostheses

Anjos

Revoredo

Galembeck

2020

Polymer Engineering & Sci

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Maxillofacial prostheses replace soft tissues that were lost due to disease or trauma, providing the restoration of the original anatomy and protecting the injured tissue. Silicone is the most widely used material, but the crosslinking process usually takes 24 hours to be completed. In this study, silicone/poly (methyl-methacrylate) blends were prepared at room temperature and assisted by microwave irradiation. The samples were characterized by confocal Raman microscopy and scanning electron microscopy/energy-dispersive X-ray spectroscopy. The microwave-assisted crosslinking is completed within 10 minutes and leads to better adhesion between silicone and PMMA than samples processed at room temperature. The methodology was adapted for the fabrication of prostheses for 50 patients with an average lifetime of 3 years, which is higher than the averages reported earlier in the literature (6-24 months).

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