Title:
Analysis of structural development during superdrawing of poly(ethylene terephthalate) fibers
Analysis of structural development during superdrawing of poly(ethylene terephthalate) fibers
dc.contributor.advisor | Wang, Youjiang | |
dc.contributor.advisor | Jacob, Karl I. | |
dc.contributor.author | Jain, Vibhor | en_US |
dc.contributor.committeeMember | Aneja, A.P. | |
dc.contributor.committeeMember | Garmestani, Hamid | |
dc.contributor.committeeMember | Thio, Yonathan S. | |
dc.contributor.committeeMember | Yao, Donggang | |
dc.contributor.department | Polymer, Textile and Fiber Engineering | en_US |
dc.date.accessioned | 2009-06-08T19:18:55Z | |
dc.date.available | 2009-06-08T19:18:55Z | |
dc.date.issued | 2009-01-09 | en_US |
dc.description.abstract | A comprehensive experimental study was conducted to determine the limitations in processing conditions for superdrawing. Experimental studies were carried out by uniaxial drawing tests at temperatures from 90 to 120°C and at strain rates ranging from 0.008/s to 0.425/s. Crystallinity and orientation of the drawn samples were evaluated using differential scanning calorimetry and birefringence measurements. This study revealed that increasing temperature from 110°C to 120°C leads to more crystallization at low strain rates (0.001/s), and less crystallization at high strain rates (0.1/s). Furthermore, it was shown for the first time that the mechanism of crystallinity development in PET undergoes a transition at draw temperature of 113°C and strain rate of 0.17/s. A new one-dimensional constitutive model was developed to predict the stress-strain behavior of PET fibers as they are drawn to very large draw ratios (up to 10) over a wide range of temperature (90-120°C) and strain rate (0.008-0.425/s). The model was based on the rubber elasticity theory and non-linear viscoelasticity. | en_US |
dc.description.degree | Ph.D. | en_US |
dc.identifier.uri | http://hdl.handle.net/1853/28185 | |
dc.publisher | Georgia Institute of Technology | en_US |
dc.subject | Superdrawing | en_US |
dc.subject | Stress-strain modeling | en_US |
dc.subject | Crystallization | en_US |
dc.subject | Fiber drawing | en_US |
dc.subject | PET | en_US |
dc.subject.lcsh | Stress-strain curves | |
dc.subject.lcsh | Calorimetry | |
dc.subject.lcsh | Fibers | |
dc.title | Analysis of structural development during superdrawing of poly(ethylene terephthalate) fibers | en_US |
dc.type | Text | |
dc.type.genre | Dissertation | |
dspace.entity.type | Publication | |
local.contributor.advisor | Jacob, Karl I. | |
local.contributor.corporatename | School of Materials Science and Engineering | |
local.contributor.corporatename | College of Engineering | |
relation.isAdvisorOfPublication | ebd9def1-d8d4-4f60-b2ef-0b4884c74b69 | |
relation.isOrgUnitOfPublication | 21b5a45b-0b8a-4b69-a36b-6556f8426a35 | |
relation.isOrgUnitOfPublication | 7c022d60-21d5-497c-b552-95e489a06569 |
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