Mass transfer of toluene vapor through protective polymer gloves
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| Title: | Mass transfer of toluene vapor through protective polymer gloves |
|---|---|
| Authors: | Cheng, Li-Hsin1,2, Chen, Ming-Jen1,2 chenmj2000@yahoo.com, Cheng, Wen-Hsi1, Lin, Ching-Ho2,3, Lai, Chin-Hsing2,3 |
| Source: | Journal of Membrane Science. Aug2012, Vol. 409-410, p180-190. 11p. |
| Subjects: | Mass transfer, Toluene, Regression analysis, Stress relaxation (Mechanics), Solvents, Empirical research, Sorption |
| Abstract: | Abstract: A series of solvent vapor permeation tests are conducted to investigate the diffusion of toluene vapor through two types of common chemical-resistant polymer gloves. The measured concentration–time data are fitted using a two-parameter regression equation, and an empirical mass flux model derived from the fitted concentration–time curve is proposed to explain the mass transfer behavior of toluene vapor through polymer gloves. The mass transfer behavior of toluene vapor through the tested polymers is initially dominated by case-II diffusion for the solvent sorption followed by anomalous diffusion. The mass transfer coefficient of toluene vapor in the polymers and the breakthrough time are found to vary as a function of the inlet surface concentration. Analogous desorption experiments reveal that desorption initially occurs by Fickian diffusion, followed by an anomalous diffusion, and finally by case-II diffusion. Although the initial rate of desorption is considerably faster than that of sorption, a low rate of desorption continues for many hours after solvent saturation. An investigation of the mechanical properties of new and artificially aged polymer gloves through stress relaxation experiments revealed that aging can have a pronounced effect on the mechanical properties with an associated change in the solvent vapor mass transfer behavior. [Copyright &y& Elsevier] |
| Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 75010974 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mass transfer of toluene vapor through protective polymer gloves – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cheng%2C+Li-Hsin%22">Cheng, Li-Hsin</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Ming-Jen%22">Chen, Ming-Jen</searchLink><relatesTo>1,2</relatesTo><i> chenmj2000@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Wen-Hsi%22">Cheng, Wen-Hsi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lin%2C+Ching-Ho%22">Lin, Ching-Ho</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Lai%2C+Chin-Hsing%22">Lai, Chin-Hsing</searchLink><relatesTo>2,3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Membrane+Science%22">Journal of Membrane Science</searchLink>. Aug2012, Vol. 409-410, p180-190. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Toluene%22">Toluene</searchLink><br /><searchLink fieldCode="DE" term="%22Regression+analysis%22">Regression analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+relaxation+%28Mechanics%29%22">Stress relaxation (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Solvents%22">Solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Empirical+research%22">Empirical research</searchLink><br /><searchLink fieldCode="DE" term="%22Sorption%22">Sorption</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: A series of solvent vapor permeation tests are conducted to investigate the diffusion of toluene vapor through two types of common chemical-resistant polymer gloves. The measured concentration–time data are fitted using a two-parameter regression equation, and an empirical mass flux model derived from the fitted concentration–time curve is proposed to explain the mass transfer behavior of toluene vapor through polymer gloves. The mass transfer behavior of toluene vapor through the tested polymers is initially dominated by case-II diffusion for the solvent sorption followed by anomalous diffusion. The mass transfer coefficient of toluene vapor in the polymers and the breakthrough time are found to vary as a function of the inlet surface concentration. Analogous desorption experiments reveal that desorption initially occurs by Fickian diffusion, followed by an anomalous diffusion, and finally by case-II diffusion. Although the initial rate of desorption is considerably faster than that of sorption, a low rate of desorption continues for many hours after solvent saturation. An investigation of the mechanical properties of new and artificially aged polymer gloves through stress relaxation experiments revealed that aging can have a pronounced effect on the mechanical properties with an associated change in the solvent vapor mass transfer behavior. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Membrane Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.memsci.2012.03.054 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 180 Subjects: – SubjectFull: Mass transfer Type: general – SubjectFull: Toluene Type: general – SubjectFull: Regression analysis Type: general – SubjectFull: Stress relaxation (Mechanics) Type: general – SubjectFull: Solvents Type: general – SubjectFull: Empirical research Type: general – SubjectFull: Sorption Type: general Titles: – TitleFull: Mass transfer of toluene vapor through protective polymer gloves Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cheng, Li-Hsin – PersonEntity: Name: NameFull: Chen, Ming-Jen – PersonEntity: Name: NameFull: Cheng, Wen-Hsi – PersonEntity: Name: NameFull: Lin, Ching-Ho – PersonEntity: Name: NameFull: Lai, Chin-Hsing IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 03767388 Numbering: – Type: volume Value: 409-410 Titles: – TitleFull: Journal of Membrane Science Type: main |
| ResultId | 1 |
