* fines accumulation on 140 to pan sieves is an ongoing process arising from either grain attrition or stable fine
agglomerates.
Additional heat in this area-300[deg.]C is not uncommon-an prevent secondary
agglomerates. Figure 3 compares micrographs of 5-micrometer microtome cuts of 20% phthalocyanine blue dispersed in polypropylene in a 60-mm twin-screw extruder at 100-rpm screw speed, 90 lbs/hr, and at 220[deg.]C and 300[deg.]C barrel temperatures in the melting zone.
After 30 min of stirring,
agglomerates thus obtained were separated by filtration and dried.
Mean particle size and
agglomerates density from optical microscope images were analyzed to evaluate the MWCNT dispersion.
Relevant
agglomerates for carbon black, however, have been shown to be over five microns in size.
of Wisconsin, discussed particle and
agglomerate size distributions and their relationship to clay and fines in reused green sand.
CNTs tend to form
agglomerates (14), (16), (23), (27).
A rubber sample is placed in a guillotine sample cutter and cut with a razor blade, exposing the peaks and valleys due to the undispersed carbon black
agglomerates. The fresh-cut surface is then placed under the Xi-100 objective and quickly scanned.
Grain size distribution, organics present in binders and
agglomerates are among the factors that could reduce strength and curing rates.
When the CNTs concentration reaches 10 wt%, formation of several large
agglomerates of 600-800 nm in size is observed.
The rate of dissolution of the drug from the
agglomerates or compacts thereof can be improved and modified by using suitable excipients during the process of preparation of agglomeration.