In this temperature range, only the PET phase could
crystallize; when the composite sample is cooled from the melt state to 200 or 180[degrees]C, the PET molecular chains could arrange into crystals, and the melted PVDF phase, acting as the continuous phase, surrounds the crystallized PET phase, as shown in Fig.
The former contain a low-Ca pyroxene and the latter can
crystallize nepheline.
Dicalcium phosphate dihydrate (DCPD), Ca[HPO.sub.4]*2[H.sub.2]O, occurs as the mineral brushite and
crystallizes in the monocinic space group Ia with unit cell parameters a = 5.812(2) [Angstrom], b = 15.180(3) [Angstrom], c = 6.239(2) [Angstrom] and [beta] = 116.42(3)[degrees], Z = 4 (41).
While all rubbers become glass-like at a sufficiently low temperature, only certain rubbers
crystallize.
It's frequently sold as creamed honey because it tends to
crystallize. Macadamia nut honey, on the other hand, is very slow to
crystallize.
The reduced mobility and the bulky nature of the ring also influence the ability of the polymer to
crystallize as it cools.
A single strong diffraction was found in WAXD patterns for all the samples under study, indicating that nylon 11 11
crystallizes into the [gamma]-form from melt independent of crystallization temperature.
Looking at these portraits up close is like looking into a pool of roses; if we step back, the face of a man or woman
crystallizes; at other distances the image is no longer clear, as if it were buried under soft ripples of water; and when see from across the room, the image is transformed, surprisingly, into a focused depiction of a specific individual.
BKG Bruckmann & Kreyenborg Granuliertechnik, part of the Kreyenborg group, showed a new pelletizer that
crystallizes PET with no external heat source, using only the retained heat from pelletizing.
