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A5 Physical Aging

Title

Below Tg, the polymer slowly relaxes toward equilibrium by the same Tool-Narayanaswamy mechanism as in M03 Glass (full reuse), becoming denser, stiffer, and more brittle with storage time without chemical change.

ID:4489

gphysics.net - Dr. Willy H. Gerber
Palos Verdes, Costa de Corral, Chile