Which outcome occurs in a polymer composite when subjected to humidity cycling near fiberglass transition temperature?

💡 Explanation

When a polymer composite cycles through humidity near fiberglass transition temperature, hydrolysis weakens the ester bonds in the matrix because water diffuses and reacts with ester linkages, reducing interfacial bonding strength. Therefore hydrolysis decreases bonding adhesion, unlike oxidation increasing strength, crystallization suddenly changing thermal properties, or sublimation significantly reducing weight.

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