Explanation
At room temperature or lower than the viscous flow temperature of materials, plastics, rubber, metal and other solids develop deformation with time under the action of low stress or self weight, and can not restore the original shape after stress removal. Its essence is the viscous sliding between molecules. The creep of plastics below the glass transition temperature also belongs to cold flow, which should be fully considered when using plastics. The cold flow of polylctrafluorocthylone is obvious. cold working is a forming method that utilizes the cold flow property of materials.
Classification
Organic polymer materials -> Polymer Science -> Polymer Physics