The Effect of Adherend Flexibility on Adhesive Strength.
ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)
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Relative strengths of super epoxy adhesive joints on metal and non-elastomeric polymer adherends having various flexibilities have been measured using a modified cleavage test. The relationship found between joint strength and deformation of the adherend surface under load was substantially independent of the nature of the surface high adhesive strengths were obtained only on rigid surfaces. Joint strengths were much more sensitive to changes in the flexibility of the adherend than to the same relative changes in adhesive flexibility obtained by heating or after immersion in water.
- Adhesives, Seals and Binders