24 strips of laminate were cut such that they were of equal size and were able to fit through the neck of a scintillation vial. Each of these laminate strips were then soiled by melting a single bead of jowatherm 288.60 hot-melt adhesive onto the surface. The coupons were then allowed to soak for 3 hours, with observations being taken every hour. A 1 rating denotes most or complete de-adhesion of the adhesive from the substrate, while a 0 rating means some of or none of the adhesive was de-adhered from the substrate. Once these values were obtained, a HSPiP Solvency sphere was generated to further examine the solubility of the target adhesive.
Toluene, Xylenes, 1,3-Dioxolane, Thiophene, and Anisole were effective at or before the 1 hour mark for de-adhering the adhesive from the laminate. Acetone and Ethyl Acetate were effective at the 2 hour mark, and Diethyl Carbonate was effective at the 3 hour mark. Based on these results, a sphere was generated and the next experiment will utilize solvent blends generated through the solvent optimizer.