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← ScienceWhich consequence results when epoxy adhesive thermally degrades?
A)Reduced structural bond strength✓
B)Increased electrical conductivity
C)Enhanced chemical resistance
D)Improved thermal expansion matching
💡 Explanation
Thermal degradation causes chain scission within the epoxy polymer, reducing cross-linking density. Reduced chain entanglement weakens mechanical bonds, therefore the structural bond strength decreases rather than resistance or conductivity. Chain scission dominates at elevated temperatures.
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