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← ScienceWhat outcome reduces effectiveness of epoxy adhesives under strain?
A)Chain scission at bond interfaces*✓
B)Covalent network cross-linking extends
C)Van der Waals forces become dominant
D)Hydrogen bonding between chain segments
💡 Explanation
Chain scission breaks the epoxy's polymer chains at the adhesive bond interface, lowering the material's resistance to tearing because mechanical stress exceeds bond strength, therefore interface separation occurs catastrophically rather than distributed strain across volume.
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