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← ScienceWithin polymer adhesives, which outcome prevents adhesive failure during high temperature creep?
A)Increased Van der Waals forces
B)Enhanced chain entanglement density
C)Elevated polymer cross-linking concentration✓
D)Amplified polymer chain alignment forces
💡 Explanation
Increased polymer cross-linking prevents chain slippage via covalent bond formation because this hinders polymer chain mobility under stress at elevated temperatures. Therefore, creep resistance increases, rather than chain slippage seen with weaker interactions.
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