Hot-embossing of microstructures on addition-curing polydimethylsiloxane films

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Abstract

To our knowledge no known technologies or processes are commercially available for embossing microstructures and sub-micron structures on elastomers like silicones in large scale production of films. The predominantly used technologies to make micro-scale components for micro-fluidic devices and microstructures on PDMS elastomer are 1) reaction injection molding 2) UV lithography and 3) photolithography, which all are time-consuming and not suitable for large scale productions. A hot-embossing process to impart micro-scale corrugations on an addition curing vinyl terminated PDMS (polydimethyl siloxane) film, which is thermosetting elastomer, was established based on the existing and widely applied technology for thermoplasts. We focus on hot-embossing as it is one of the simplest, most cost-effective and time saving methods for replicating structures for thermoplasts. Addition curing silicones are shown to possess the ability to capture and retain an imprint made on it 10-15 minutes after the gel-point at room temperature. This property is exploited in the hot-embossing technology. © 2013 SPIE.
Original languageEnglish
Title of host publicationProceedings of SPIE : The International Society for Optical Engineering
Number of pages16
PublisherSPIE - International Society for Optical Engineering
Publication date2013
ISBN (Print)9780819494702
DOIs
Publication statusPublished - 2013
EventElectroactive Polymer Actuators and Devices - Town & Country Resort and Convention Center, San Diego, California, United States
Duration: 10 Mar 201314 Mar 2013

Conference

ConferenceElectroactive Polymer Actuators and Devices
LocationTown & Country Resort and Convention Center
CountryUnited States
CitySan Diego, California
Period10/03/201314/03/2013
SeriesProceedings of SPIE, the International Society for Optical Engineering
Volume8687
ISSN1605-7422

Keywords

  • Conducting polymers
  • Curing
  • Elastomers
  • Electroactive polymer actuators
  • Microchannels
  • Microstructure
  • Photolithography
  • Plastic films
  • Reaction injection molding
  • Technology
  • Thermosets
  • Silicones

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