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dc.contributor.authorAbeykoon, C.
dc.contributor.authorPérez, P.
dc.contributor.authorKelly, Adrian L.
dc.date.accessioned2020-10-26T11:21:11Z
dc.date.accessioned2020-11-05T12:00:48Z
dc.date.available2020-10-26T11:21:11Z
dc.date.available2020-11-05T12:00:48Z
dc.date.issued2020-06
dc.identifier.citationAbeykoon C, Pérez P and Kelly AL (2020) The effect of materials' rheology on process energy consumption and melt thermal quality in polymer extrusion. Polymer Engineering and Science. 60(6): 1244-1265.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18156
dc.descriptionYesen_US
dc.description.abstractPolymer extrusion is an important but an energy intensive method of processing polymeric materials. The rapid increase in demand of polymeric products has forced manufactures to rethink their processing efficiencies to manufacture good quality products with low-unit-cost. Here, analyzing the operational conditions has become a key strategy to achieve both energy and thermal efficiencies simultaneously. This study aims to explore the effects of polymers' rheology on the energy consumption and melt thermal quality (ie, a thermally homogeneous melt flow in both radial and axil directions) of extruders. Six commodity grades of polymers (LDPE, LLDPE, PP, PET, PS, and PMMA) were processed at different conditions in two types of continuous screw extruders. Total power, motor power, and melt temperature profiles were analyzed in an industrial scale single-screw extruder. Moreover, the active power (AP), mass throughput, torque, and power factor were measured in a laboratory scale twin-screw extruder. The results confirmed that the specific energy consumption for both single and twin screw extruders tends to decrease with the processing speed. However, this action deteriorates the thermal stability of the melt regardless the nature of the polymer. Rheological characterization results showed that the viscosity of LDPE and PS exhibited a normal shear thinning behavior. However, PMMA presented a shear thickening behavior at moderate-to-high shear rates, indicating the possible formation of entanglements. Overall, the findings of this work confirm that the materials' rheology has an appreciable correlation with the energy consumption in polymer extrusion and also most of the findings are in agreement with the previously reported investigations. Therefore, further research should be useful for identifying possible correlations between key process parameters and hence to further understand the processing behavior for wide range of machines, polymers, and operating conditions.en_US
dc.language.isoenen_US
dc.rights© 2020 The Authors. Polymer Engineering & Science published by Wiley Periodicals, Inc. on behalf of Society of Plastics Engineers. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_US
dc.subjectPolymer extrusionen_US
dc.subjectPolymer rheologyen_US
dc.subjectPower factoren_US
dc.subjectProcess monitoringen_US
dc.subjectSpecific energy consumptionen_US
dc.subjectThermal stabilityen_US
dc.subjectTorqueen_US
dc.titleThe effect of materials' rheology on process energy consumption and melt thermal quality in polymer extrusionen_US
dc.status.refereedYesen_US
dc.date.Accepted2020-03-18
dc.date.application2020-04-11
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.identifier.doihttps://doi.org/10.1002/pen.25377
dc.date.updated2020-10-26T11:21:17Z
refterms.dateFOA2020-11-05T12:01:42Z


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