Rheological behavior of binary aqueous solutions of poly(ethylene glycol) of 1500 g·mol-1 as affected by temperature and polymer concentration

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDe Sá Costa, Bernardo
dc.creatorDos Reis Coimbra, Jane Sélia
dc.creatorMartins, Márcio Areîdes
dc.creatorGarcia-Rojas, Edwin Elard
dc.creatorTelis-Romero, Javier
dc.creatorDe Oliveira, Eduardo Basílio
dc.date2014-05-27T11:28:55Z
dc.date2016-10-25T18:47:23Z
dc.date2014-05-27T11:28:55Z
dc.date2016-10-25T18:47:23Z
dc.date2013-04-11
dc.date.accessioned2017-04-06T02:20:28Z
dc.date.available2017-04-06T02:20:28Z
dc.identifierJournal of Chemical and Engineering Data, v. 58, n. 4, p. 838-844, 2013.
dc.identifier0021-9568
dc.identifier1520-5134
dc.identifierhttp://hdl.handle.net/11449/75101
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75101
dc.identifier10.1021/je300712j
dc.identifierWOS:000317553600002
dc.identifier2-s2.0-84876231631
dc.identifierhttp://dx.doi.org/10.1021/je300712j
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895850
dc.descriptionThe rheological behavior of poly(ethylene glycol) of 1500 g·mol -1(PEG1500) aqueous solutions with various polymer concentrations (w = 0.05, 0.10, 0.15, 0.20 and 0.25) was studied at different temperatures (T = 283.15, 288.15, 293.15, 298.15 and 303.15) K. The analyses were carried out considering shear rates ranging from (20 to 350) s-1, using a cone-and-plate rheometer under controlled stress and temperature. Classical rheological models (Newton, Bingham, Power Law, Casson, and Herschel-Bulkley) were tested. The Power Law model was shown suitable to mathematically represent the rheological behavior of these solutions. Well-adjusted empirical models were derived for consistency index variations in function of temperature (Arrhenius-type model; R2 > 0.96), polymer concentration (exponential model; R2 > 0.99) or the combination of both (R 2 > 0.99). Additionally, linear models were used to represent the variations of behavior index in the functions of temperature (R2 > 0.83) and concentration (R2 > 0.87). © 2013 American Chemical Society.
dc.languageeng
dc.relationJournal of Chemical and Engineering Data
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBinary aqueous solutions
dc.subjectConsistency index
dc.subjectExponential models
dc.subjectHerschel-Bulkley
dc.subjectPolymer concentrations
dc.subjectPower law model
dc.subjectRheological behaviors
dc.subjectRheological models
dc.subjectPolymers
dc.subjectRheology
dc.subjectSolutions
dc.subjectPolyethylene glycols
dc.titleRheological behavior of binary aqueous solutions of poly(ethylene glycol) of 1500 g·mol-1 as affected by temperature and polymer concentration
dc.typeOtro


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