Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2105
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dc.contributor.authorWong, Sim-Siong-
dc.contributor.authorAlsoy Altınkaya, Sacide-
dc.contributor.authorMallapragada, Surya K.-
dc.date.accessioned2016-08-15T08:43:40Z-
dc.date.available2016-08-15T08:43:40Z-
dc.date.issued2007-06-
dc.identifier.citationWong, S.-S., Alsoy, S., and Mallapragada, S. K. (2007). Multi-Zone drying schemes for lowering the residual solvent content during multi-component drying of semicrystalline polymers. Drying Technology, 25(6), 985-992. doi:10.1080/07373930701396741en_US
dc.identifier.issn0737-3937-
dc.identifier.issn0737-3937-
dc.identifier.urihttp://doi.org/10.1080/07373930701396741-
dc.identifier.urihttp://hdl.handle.net/11147/2105-
dc.description.abstractThe development of a glassy skin in multicomponent semicrystalline polymer systems limits the diffusion of solvents out of the system and increases residual solvent levels. Based on the results of a mathematical model that we had previously developed, we have proposed a multi-zone drying scheme aimed at lowering the residual solvent levels by taking into account the effect of interactions between the various solvents as predicted by the model. This article focuses on the application of this model to develop optimal drying schemes and to verify the effectiveness of these predictions using experimental techniques. The mathematical model developed previously to study the diffusion of multiple solvents and changes in the crystallinity of semicrystalline polymer systems during drying incorporates many features including Vrentas-Duda diffusion theory, solvent-induced crystallization kinetics, as well as glass transition effects and skinning of the film. The multi-zone drying system was developed by varying the drying temperature in each zone as well as changing the partial pressure of individual solvents during the drying process. The effectiveness of the multi-zone drying schemes predicted by the model was validated experimentally using thermogravimetric methods. The polymer-solvent system chosen was a poly(vinyl alcohol)-water-methanol system. Our experimental data suggested that the multi-zone drying schemes were superior to a single-zone drying system through direct comparison. Further examination of the mathematical model yielded individual solvent profiles and these data reaffirmed our conclusions that a multi-zone drying scheme has the ability to reduce the effect of solvent trapping and thus lower the overall residual solvent content.en_US
dc.description.sponsorshipNational Science Foundation for financial support through NSF-CTS0107168en_US
dc.language.isoenen_US
dc.publisherTaylor and Francis Ltd.en_US
dc.relation.ispartofDrying Technologyen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCrystallizationen_US
dc.subjectDryingen_US
dc.subjectModelingen_US
dc.subjectSemicrystalline polymersen_US
dc.subjectThermogravimetric analysisen_US
dc.titleMulti-Zone drying schemes for lowering the residual solvent content during multi-component drying of semicrystalline polymersen_US
dc.typeArticleen_US
dc.authoridTR2091en_US
dc.institutionauthorAlsoy Altınkaya, Sacide-
dc.departmentİzmir Institute of Technology. Chemical Engineeringen_US
dc.identifier.volume25en_US
dc.identifier.issue6en_US
dc.identifier.startpage985en_US
dc.identifier.endpage992en_US
dc.identifier.wosWOS:000247677200057en_US
dc.identifier.scopus2-s2.0-34250669588en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1080/07373930701396741-
dc.relation.doi10.1080/07373930701396741en_US
dc.coverage.doi10.1080/07373930701396741en_US
dc.identifier.wosqualityQ1-
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextopen-
crisitem.author.dept03.02. Department of Chemical Engineering-
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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