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← ScienceWhich outcome arises when an epoxy adhesive fails?
A)Network chains undergo chain scission✓
B)Hydrogen bond energy increases sharply
C)Crystallinity substantially increases overall
D)Van der Waals forces become insignificant
💡 Explanation
Network chain scission becomes significant because mechanical stress leads to the breaking of covalent bonds within the epoxy polymer network. Therefore, adhesive strength decreases rather than increasing crystallinity or altering intermolecular forces without chain destruction.
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