Which process is disrupted when an epoxy adhesive's cross-linking density becomes too high during curing?

💡 Explanation

When cross-linking density is excessively high during epoxy curing, chain mobility decreases because the high concentration of covalent bonds creates rigid, constrained regions which generate internal stress. Therefore internal stress concentration results, rather than changed thermal conductivity, chemical resistance properties or vibrational damping which is related to viscoelasticity.

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