Inkjet printing as a fabrication method for hydrophobic surfaces

Liisa Hakola, Kim Eiroma, Jali Heilmann, Hannu Linna, Terho Kololuoma, Harri Harma

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Inkjet printing is an ideal manufacturing method for challenging applications. It is compatible with many kinds of fluids and substrates and it enables accurate deposition of nonconventional inks. This paper presents the use of inkjet printing to fabricate hydrophobic surfaces. Hydrophobic surfaces are needed for example in diagnostic applications for screening purposes, but also other uses can be found. Inkjet printed hydrophobic surfaces have been demonstrated. Two different inks have been manufactured - one amorphous fluoropolymer (Teflon) and one polydimethylsiloxane (PDMS) based - and inkjet printed on a polystyrene substrate. The first ink produced a contact angle of approximately 116° and the second one 108° thus indicating a hydrophobic surface. Several methods were also tested to increase the contact angle to near 180°, but most likely the high solvent content in the inks prevented this.
    Original languageEnglish
    Title of host publication23rd International Conference on Digital Printing Technologies 2007
    Subtitle of host publicationTechnical Program and Proceedings
    Place of PublicationSpringfield, VA, USA
    PublisherThe Society for Imaging Science and Technology, IS&T
    Pages925-927
    ISBN (Print)0-89208-273-9
    Publication statusPublished - 2007
    MoE publication typeA4 Article in a conference publication
    Event23rd International Conference on Digital Printing Technologies: Digital Fabrication 2007 - Anchorage, United States
    Duration: 16 Sep 200721 Sep 2007

    Conference

    Conference23rd International Conference on Digital Printing Technologies
    Country/TerritoryUnited States
    CityAnchorage
    Period16/09/0721/09/07

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