Breaking the Adhesive Bond between Dialyll Phthlate, Barco Bond 185 and PBX 9501
- 1 West Texas A & M University, Canyon, Texas, USA
- 2 West Texas A & M University, Canyon, Texas, USA
- 3 West Texas A & M University, Canyon, Texas, USA
- 4 West Texas A & M University, Canyon, Texas, USA
- 5 West Texas A & M University, Canyon, Texas, USA
- 6 CNS Pantex, Amarillo, Texas, USA
- 7 CNS Pantex, Amarillo, Texas, USA
Abstract
Use of epoxy as an adhesive is a common practice. The most common applications are permanent sealants. Epoxies have a wide range of operating temperatures, and are very resistance to adhesive failure. When a need to remove this adhesive arises, it is not always easily accomplished especially if the part has excessive adhesive. To maintain fidelity of the parts attached by epoxy, a project evaluating several methods of epoxy removal was conducted. Methods evaluated included low wavelength, near-ultraviolet radiation, solvent dissolution, and thermal cycling. The UV method failed to demonstrate a repeatable dissociation. The solvent study did result in dissociation of bonds, but introduced chemicals that could make subsequent chemical analysis of parts suspect. Thermal cycling showed a high repeatability for dissociation of bonds and may prove to be relatively inexpensive to implement.
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