Assessment and Non-Destructive Evaluation of the Influence of Residual Solvent on a Two-Part Epoxy-Based Adhesive Using Ultrasonics
, Edgar Viamontes 1, Eduardo Salazar 1, Mariana Ontiveros 1, Cristian Pantea 2, Eric S. Davis 2, Tommy Rockward 2, Dwayne McDaniel 1 and Benjamin Boesl 1,*Round 1
Reviewer 1 Report
The article “Assessment and non-destructive evaluation of the influence of residual solvent on a two-part epoxy based adhesive using ultrasonics” by Seisdedos et al. provides a ultrasonic testing method to non-destructively evaluate the properties of epoxy. The influence of residual solvents on epoxyl has been studied by FTIR, TGA and single lap-shear. The influence of residual solvents on the sound speed was also carefully discussed. The scientific aspect of the paper is solid and well described and the application itself can be interesting for the targeted audience. However, it is better to provide the experimental Young’s modulus of epoxy containing different contents of residual solvent, and to compare experimental and predictive values evaluated by this proposed ultrasonic testing. It is important for the non-destructive evaluation. I recommend to a minor revision.
Author Response
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Reviewer 2 Report
It is a paper with many determinations and equipment used presenting a set of investigations carried out under controlled laboratory conditions. For completeness and validation, the experiments dedicated to the in-service work should be carried out, in-situ.
Otherwise, with a few minor additions, the paper is of interest to researchers first, and to fieldworkers second.
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Author Response
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