Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene
The effect of different processing additives on the extrusion instabilities of high density polyethylene (HDPE) was investigated. The concentration of each processing additive was fixed at 0.05 wt%. Organoclay, boron nitride, and fluoropolymer reduced transient shear and extensional viscosities of H...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2015/190537 |
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| author | A. A. Adesina M. S. Nasser I. A. Hussein |
| author_facet | A. A. Adesina M. S. Nasser I. A. Hussein |
| author_sort | A. A. Adesina |
| collection | DOAJ |
| description | The effect of different processing additives on the extrusion instabilities of high density polyethylene (HDPE) was investigated. The concentration of each processing additive was fixed at 0.05 wt%. Organoclay, boron nitride, and fluoropolymer reduced transient shear and extensional viscosities of HDPE melt. Drop in extrusion pressure occurred during the extrusion experiment. The initial loss of glossiness in HDPE was restored with the addition of these additives. However, the fluoropolymer did not succeed in eliminating the stick-slip fracture. Despite the inclusion of the processing additives, gross-melt fracture in HDPE reappeared at apparent shear rate of 141 s−1. Both moment and distortion factor methods of analyses were employed and their findings support the observed visual trends of the extrudate surface. The quantifying tools indicated that combined organoclay and fluoropolymer reduced the pressure fluctuations and its performance surpassed that of the individual additives. |
| format | Article |
| id | doaj-art-9b921b0f78f740738bb37d3e70dd9fec |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-9b921b0f78f740738bb37d3e70dd9fec2025-02-03T01:10:35ZengWileyInternational Journal of Polymer Science1687-94221687-94302015-01-01201510.1155/2015/190537190537Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density PolyethyleneA. A. Adesina0M. S. Nasser1I. A. Hussein2Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaGas Processing Center, College of Engineering, Qatar University, P.O. Box 2713, Doha, QatarDepartment of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaThe effect of different processing additives on the extrusion instabilities of high density polyethylene (HDPE) was investigated. The concentration of each processing additive was fixed at 0.05 wt%. Organoclay, boron nitride, and fluoropolymer reduced transient shear and extensional viscosities of HDPE melt. Drop in extrusion pressure occurred during the extrusion experiment. The initial loss of glossiness in HDPE was restored with the addition of these additives. However, the fluoropolymer did not succeed in eliminating the stick-slip fracture. Despite the inclusion of the processing additives, gross-melt fracture in HDPE reappeared at apparent shear rate of 141 s−1. Both moment and distortion factor methods of analyses were employed and their findings support the observed visual trends of the extrudate surface. The quantifying tools indicated that combined organoclay and fluoropolymer reduced the pressure fluctuations and its performance surpassed that of the individual additives.http://dx.doi.org/10.1155/2015/190537 |
| spellingShingle | A. A. Adesina M. S. Nasser I. A. Hussein Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene International Journal of Polymer Science |
| title | Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene |
| title_full | Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene |
| title_fullStr | Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene |
| title_full_unstemmed | Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene |
| title_short | Comparative Analysis of the Effect of Organoclay, Boron Nitride, and Fluoropolymer on the Rheology and Instabilities in the Extrusion of High Density Polyethylene |
| title_sort | comparative analysis of the effect of organoclay boron nitride and fluoropolymer on the rheology and instabilities in the extrusion of high density polyethylene |
| url | http://dx.doi.org/10.1155/2015/190537 |
| work_keys_str_mv | AT aaadesina comparativeanalysisoftheeffectoforganoclayboronnitrideandfluoropolymerontherheologyandinstabilitiesintheextrusionofhighdensitypolyethylene AT msnasser comparativeanalysisoftheeffectoforganoclayboronnitrideandfluoropolymerontherheologyandinstabilitiesintheextrusionofhighdensitypolyethylene AT iahussein comparativeanalysisoftheeffectoforganoclayboronnitrideandfluoropolymerontherheologyandinstabilitiesintheextrusionofhighdensitypolyethylene |