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← ScienceWhich consequence results when thermal stress exceeds epoxy's limit?
A)Adhesive bond strength fatally decreases✓
B)Volatile outgassing increases negligibly
C)Glass transition peaks substantially lower
D)Coefficient of expansion rate remains stable
💡 Explanation
When the system undergoes excessive thermal stress, chain scission occurs because the heat energy breaks the covalent bonds within the epoxy polymer, therefore the bond strength decreases rather than remaining constant or only slightly reducing outgassing.
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