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← ScienceWhich consequence results when excessive torsional stress fractures epoxy-resin adhesive?
A)Reduced interfacial frictional lock✓
B)Increased material dielectric strength
C)Enhanced covalent bond crosslinking
D)Improved hydrogen bond stabilization
💡 Explanation
Fracture reduces interlocking of adhesive surfaces, because covalent bond scission during crack propagation via GRIFFITH CRACK THEORY diminishes adhesion and thus friction; therefore, interfacial friction decreases rather than dielectric strength increasing, given stable environments.
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