Adhesive Bonding for Shelters

摘要

As a result of work done over the past several years with adhesives in general and shelter adhesives in particular, a testing scheme for evaluating candidate shelter adhesives has been developed and generally accepted by the shelter industry. This includes agreement upon the types of tests, test conditions, and test specimens which will be utilized to evaluate candidate adhesives. The work undertaken in this program was aimed at identifying adhesives which have the capability of retaining a substantial portion of their structural integrity after prolonged exposure to the combined effects of elevated temperature and high humidity, and also to evaluate the effects of several adherend surface preparation variables upon the interfacial durability of bonded joints. Seven adhesives were evaluated for their lap shear, peel, and stress-durability characteristics. No single adhesive ranked high in all categories but a relative ranking of the adhesives was developed, based on their relative performance in all of the tests.