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← ScienceWhich consequence results when moisture weakens epoxy-amine thermoset polymer?
A)Increased glass transition temperature
B)Hydrolytic cleavage of ester linkages
C)Swelling and reduced adhesion✓
D)Enhanced crosslinking within the matrix
💡 Explanation
Moisture induces swelling and reduced adhesion because water molecules disrupt hydrogen bonds between the epoxy and hardener, weakening intermolecular forces via this process. Therefore adhesion is lower, rather than increased crosslinking or altering transition temperature because of disrupted hydrogen bonds.
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