New Videos Showcase Student Research
LAS VEGAS—Zinc phosphate pretreatments, sodium chloride diffusion, and internal coatings stress are on the research agendas of the coating industry's next generation.
Now, the student researchers behind those efforts offer a summary of their work in a new series of videos produced by Technology Publishing Co.
The students originally presented their work over the course of three days at the first annual Poster Sessions at SSPC 2015 in Las Vegas.
The sessions invited college and graduate students to show their current or previous research; three students discussed their work for Technology Publishing.
Internal Primer Stress
Joel Devin Clark, a student in the University of Southern Mississippi's School of Polymers and High Performance Materials, gave TPC a rundown of his poster, "Measurement of Internal Coating Stresses of MIL-PRF-23377 Top Coated with MIL-PRF-85285."
Joel Devin Clark explains his work on the internal stress of an epoxy-amine primer applied to bare steel.
The poster was co-authored by fellow students Richard C. Ferguson and James W. Rawlins.
In this study, the internal stress of an epoxy-amine primer applied to bare steel was studied through a number of wet and dry cycles. To better understand the effect of internal coatings stress and adhesion, the authors wanted to change the adhesion to the substrate while holding the coating constant.
Scratching the Pretreatment Surface
Abigail Helbling, from the Corrosion Engineering department at the University of Akron, looked at an aspect of zinc phosphate coatings in "Electrochemical Characterization of Pretreatment on Two Alloys, Considering Scratch and Intact Layers."
The poster was co-authored by Nathaniel Sutton.
A zinc phosphate pretreatment was tested on scratched and intact samples of aluminum and steel substrates, and the research observed the first stage of coating breakdown.
A zinc phosphate pretreatment was tested on scratched and intact samples of aluminum and steel substrates in research presented by Abigail Helbling.
The authors were motivated to test aluminum because it is starting to replace steel in some applications.
Robert C. Bennett's work aimed to understand how sodium chloride affects water uptake into a film and how it interacts with corrosion-inhibiting pigments—important considerations in developing the next generation of anticorrosive coatings.
"Understanding the Effects of NaCl Concentration on Zinc Phosphate Pigment Morphology and Composition by Advection Through Phenoxy Thermoplastic Free Films" was co-authored by Greg Curtzwiler, Christina Konecki, Dilhan Fernando and James W. Rawlins. All are students at the University of Southern Mississippi's School of Polymers and High Performance Materials.
Robert C. Bennett's work aimed to understand how sodium chloride affects water uptake into a film and how it interacts with corrosion-inhibiting pigments.
Coating free films were immersed in aqueous sodium chloride solutions, and the team studied how ions diffused out of the system and into the liquid.
The research also analyzed how different levels of sodium chloride content changed the morphology of zinc phosphate crystals.
Videos for the Poster Presentations and more can be viewed for free here.