Effects of shearing conditions on crystalline orientation and relaxation in polyethylene
dc.contributor.author | Hsiue, E. S. | en_US |
dc.contributor.author | Robertson, Richard E. | en_US |
dc.contributor.author | Yeh, Gregory S. Y. | en_US |
dc.date.accessioned | 2006-04-28T16:40:42Z | |
dc.date.available | 2006-04-28T16:40:42Z | |
dc.date.issued | 1983-02 | en_US |
dc.identifier.citation | Hsiue, E. S.; Robertson, R. E.; Yeh, G. S. Y. (1983)."Effects of shearing conditions on crystalline orientation and relaxation in polyethylene." Polymer Engineering and Science 23(2): 74-78. <http://hdl.handle.net/2027.42/38107> | en_US |
dc.identifier.issn | 0032-3888 | en_US |
dc.identifier.issn | 1548-2634 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/38107 | |
dc.description.abstract | The effects of shearing conditions (i.e., shear temperature and shear rate) on the degree of orientation of polyethylene (Marlex 6006) and to what extent the induced orientation could be relaxed were examined in this study. Two types of samples were prepared: namely, SIC (shear-induced crystallization) and non-SIC samples. The SIC samples show induction times and possess a high degree of c -axis orientation along the shear direction. The induced orientation of SIC samples can be relaxed to a small extent but does not reach a steady value. Non-SIC samples do not show induction times and they show low degrees of c -axis orientation. The induced orientation of non-SIC samples can be relaxed to a steady state value with an activation energy of 90 kJ/mole. Our results also indicate that, when the shear temperature is at and above 145°C, polyethylene can be sheared up to 200X without introducing any significant molecular orientation even at very high shear rates. | en_US |
dc.format.extent | 541833 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Society of Plastics Engineers, Inc. | en_US |
dc.publisher | Wiley Periodiocals, Inc. | en_US |
dc.subject.other | Chemistry | en_US |
dc.subject.other | Chemical Engineering | en_US |
dc.title | Effects of shearing conditions on crystalline orientation and relaxation in polyethylene | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering and Macromolecular Research Center, University of Michigan Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering and Macromolecular Research Center, University of Michigan Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering and Macromolecular Research Center, University of Michigan Ann Arbor, Michigan 48109 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/38107/1/760230205_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/pen.760230205 | en_US |
dc.identifier.source | Polymer Engineering and Science | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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