Lasisiirtymällä
Lasisiirtymällä, often translated as "glass transition," is a phenomenon observed in amorphous materials, most notably in polymers and glasses, where a gradual transition occurs from a hard, brittle, glassy state to a softer, more flexible, rubbery or viscous state. This transition is not a sharp melting point like that seen in crystalline solids but rather a temperature range where the material's mechanical and thermal properties change significantly.
The molecular explanation for the glass transition lies in the restricted motion of polymer chains or molecular
The Tg is a crucial parameter in determining the suitability of a material for a particular application.