Crystallization, cold linear

FIG. 3-6. A polished and etched surface of a piece of cold-drawn copper bar, showing the small crystal grains which compose the ordinary metal. Magnification 200 X (200-fold linearly). The small round spots are gas bubbles. (From Dr. S. Kyropoulos.)... 

The cold crystallization peak temperature decreases linearly with increasing PTT content form 180°C for pure PEN to 65for pure PTT. 

Fig. 3. Two populations of lamellae in a linear polyethylene (Rigidex 140/60) crystallized for 3 h at 128°C, then quenched into cold water. The thicker layers formed at 128°C and have established a framework within which the thin lamellae formed on quenching. Replica of etched cut surface.

---