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← ScienceWhich structural collapse occurs when epoxy adhesive degrades?
A)Interface hydrogen bonding decreases severely✓
B)Chain scission dominates crosslinking buildup
C)Entanglement controls surface energy
D)Crystallinity initiates fracture propagation
💡 Explanation
Adhesive failure develops because reduced interface *hydrogen bonding* increases interfacial stress, causing crack initiation, therefore a loss of structural integrity happens; rather than matrix failure in other composites showing brittle fracture.
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