ISSN:
0032-3888
Schlagwort(e):
Chemistry
;
Chemical Engineering
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
The behavior and appearance of ABS compounds in rheometers correlate with certain surface characteristics of extruded sheet. Three reometers were studied, each demonstrating the increase of viscosity with time of a destabilized compound over a standard ABS. This behavior shows as low gloss areas on the sheet from the destabilized compound vs uniform gloss for the standard. The Instron Capillary Rheometer proved the useful since extrudates produced can discriminate between compounds at given temperatures on the basis of gloss. The relative gloss of material tested is duplicated on extrusion as measured by a 600 Gardner glossmeter. Dynamic conditions affecting viscosity can also be predicted by the Brabender Plastigraph. Correlations developed, along with the usual physical measurements, permit appaisal of ABS compounds before commercial extrusion.
Zusätzliches Material:
11 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pen.760060215
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