Crack Bridging Mechanism for Glass Strengthening by Organosilane Water-Based Coatings
Renaud Briard (SVI), Caroline Heitz (SVI), Etienne Barthel (SVI)
TL;DR
This study demonstrates that organosilane water-based coatings can significantly strengthen glass by crack face bridging, with a highly cross-linked film exhibiting excellent adhesion and mechanical properties.
Contribution
It introduces a novel crack bridging mechanism for glass strengthening using an epoxysilane/aminosilane coating from aqueous solutions.
Findings
The coating has a Young's modulus of 6 GPa.
Crack face bridging accounts for 75% of reinforcement.
The film shows high cross-linking and good adhesion.
Abstract
We used an epoxysilane/aminosilane coating deposited from an aqueous solution to strengthen flat glass. We studied film formation, interfacial and mechanical properties of the film. The film is highly cross-linked with a 6 GPa Young's modulus and good adhesion. Our results suggest that crack face bridging accounts for most of the 75 % reinforcement in this system.
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