Title:
Determination of Polymer Film Development through Surface Characterization Studies

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dc.contributor.advisor Banerjee, Sujit
dc.contributor.author Fike, Gregory Michael en_US
dc.contributor.committeeMember Hess, Dennis W.
dc.contributor.committeeMember Preet Singh
dc.contributor.committeeMember Patterson, Timothy
dc.contributor.committeeMember Deng, Yulin
dc.contributor.department Chemical Engineering en_US
dc.date.accessioned 2005-07-28T17:56:08Z
dc.date.available 2005-07-28T17:56:08Z
dc.date.issued 2005-04-01 en_US
dc.description.abstract Unexpectedly, it was found that when a waterborne polyacrylate adhesive was placed on carbon steel it was not tacky; this was not the case for the same adhesive placed on stainless steel. It was determined that the surface energy, as measured with liquid contact angles, of the adhesive films is significantly different between the two films, with the non-tacky film having a higher surface energy. Atomic force microscopy (AFM) showed that the non-tacky surface has a higher roughness which minimizes the contacting area between the film and a contacting surface. Analysis of the heating of the carbon steel coupon with infrared thermography shows a non-uniform temperature profile at the surface. This experimental data is corroborated using a 2-D heat transfer model that incorporates the heat transfer characteristics of the various components of carbon steel. Surface driven flow, or Marangoni convection, can develop from temperature gradients and are known to cause increased roughness in polymer films. IR thermography measurements of the adhesive film during drying shows larger temperature differences for the films on carbon steel than on stainless steel. These larger temperature differences induce greater Marangoni convection, which result in the rougher surfaces on carbon steel that were measured with AFM. The effect of lowering the tack of a polyacrylate film has significant impact in the dryer section of a paper machine. This effect was quantified using the Web Adhesion Drying Simulator, which is a laboratory-scale apparatus that measures the energy required to pull the sheet from a metal surface. By substituting the adhesive-on-stainless steel with the less-sticky adhesive-on-carbon steel surface, the energy required to pull the sheet from the metal surface was reduced significantly and the picking associated with the test was nearly eliminated. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 9856858 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/6879
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Stickies en_US
dc.subject WADS
dc.subject Paper recycling
dc.subject Pressure sensitive adhesive (PSA)
dc.title Determination of Polymer Film Development through Surface Characterization Studies en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Banerjee, Sujit
local.contributor.corporatename School of Chemical and Biomolecular Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication c7c678e2-25fb-4158-949e-b6e3f8c14d97
relation.isOrgUnitOfPublication 6cfa2dc6-c5bf-4f6b-99a2-57105d8f7a6f
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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