Method for Hydrolytically Stable Bonding of Silicone Elastomers to Plastics

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Active devices such as pumps and mixers have been fabricated in plastic-PDMS hybrid devices. By utilizing functionalized bis-silane primers, bond strength between Polycarbonate or PMMA and PDMS improved in dry and aqueous environments. Plastic-primer-PDMS layers exposed to acid and base solutions at 70° C. for 2 hours showed no signs of delamination at 30 psi for pH −1 to 15 and 60 psi for pH 0 to 15. A peristaltic pump fabricated in polycarbonate achieved consistent flow rates up to peristaltic cycle frequencies of 10 Hz in water, 1OM HCl, and 1OM NaOH solutions.

Researchers

Rajeev Ram / Kevin Lee / Harry Lee

Departments: Dept of Electrical Engineering & Computer Science
Technology Areas: Chemicals & Materials: Catalysis & Synthesis, Composites, Polymers / Industrial Engineering & Automation: Manufacturing & Equipment
Impact Areas: Advanced Materials

  • method for hydrolytically stable bonding of elastomers to substrates
    United States of America | Granted | 9,422,409

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