Fast underwater bonding to polycarbonate using photoinitiated cyanoacrylate

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Authors

Cloete, William Edward
Focke, Walter Wilhelm

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Publisher

Elsevier

Abstract

Rapid underwater bonding of clear polycarbonate to metal or plastic substrates at temperatures approaching 0 °C was studied. Bonding was achieved within minutes using ethyl 2-cyanoacrylate gel cured using the photoinitiator (dibenzoylferrocene) with a blue-LED light source. The optimum initiator concentration varied from 0.3% to 0.1 wt % for adhesive films 0.5 to 1.2 mm thick, respectively. The polymerisation rate shows a negative temperature dependence making it highly suitable for cold environments. The ultimate shear strength of the bonds was temperature independent and ranged from 1 MPa for metallic to 5 MPa for plastic substrates, respectively.

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Keywords

Cyanoacrylates, Destructive testing, Thermal analysis, Cure/hardening, Plastics

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Citation

Cloete, WE & Focke, WW 2010, 'Fast underwater bonding to polycarbonate using photoinitiated cyanoacrylate', International Journal of Adhesion and Adhesives, vol. 30, no. 4, pp. 191-254. [http://www.sciencedirect.com/science/journal/01437496]