ISSN:
0887-6266
Keywords:
polymer blend
;
extrusion
;
light scattering
;
optical microscopy
;
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A light-scattering photometer with optical microscope for in-line studies during polymer processing is described. The instrument utilizes a commercial twin-screw extruding device that feeds molten polymer into a narrow slit die equipped with sapphire optical windows. The flow rate through the die is controlled via the feed rate, screw rate, and a by-pass valve. The optics for light scattering and microscopy can be switched back and forth via simple translation of a rail-mounted optical platform without realignment, allowing efficient in situ morphological studies in both real and reciprocal space. Extruded polystyrene/polyethylene blends and melts are used to demonstrate the performance and versatility of the instrument. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 2935-2943, 1997
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
Permalink
