Production of controlled networks and morphologies in toughened thermosetting resins using real-time, in-situ cure monitoring

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dc.contributor.authorBrown, Janis Michelleen
dc.contributor.committeechairWard, Thomas C.en
dc.contributor.committeememberMcGrath, James E.en
dc.contributor.committeememberWilkes, Garth L.en
dc.contributor.committeememberLoos, Alfred C.en
dc.contributor.committeememberKander, Ronald C.en
dc.contributor.departmentMaterials Engineering Scienceen
dc.date.accessioned2014-03-14T21:23:04Zen
dc.date.adate2005-11-10en
dc.date.available2014-03-14T21:23:04Zen
dc.date.issued1994-04-04en
dc.date.rdate2005-11-10en
dc.date.sdate2005-11-10en
dc.description.abstractChemical and physical changes occur during the processing of toughened thermosetting resins. A number of properties are related to the type and sequence of these changes. There is a need for the development of in-situ real-time sensors to follow these changes. Once these sensors are developed, they can be used to preferentially select networks and/or morphologies by feedback-controlled "intelligent" processing. A practical, durable, inexpensive Fourier Transform NearInfrared (FTNIR) fiber optic sensor was developed and the cure of a model toughened cyanate as well as a commercial paste adhesive was followed with this sensor In the near-infrared. The design was suitable for many applications. A mold was designed to incorporate the fiber sensor for composite applications. The growth of the normalized triazine (crosslink) peak appeared to follow second order kinetics. The normalized peak reflected chemical as well as physical changes. Analysis of the individual peaks showed significant physical effects. Conversion based on triazine concentration did not follow second order kinetics.en
dc.description.degreePh. D.en
dc.format.extentxvi, 200 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11102005-141112en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11102005-141112/en
dc.identifier.urihttp://hdl.handle.net/10919/40306en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1994.B769.pdfen
dc.relation.isformatofOCLC# 30932810en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1994.B769en
dc.subject.lcshFourier transform opticsen
dc.subject.lcshGums and resinsen
dc.subject.lcshThermosetting plasticsen
dc.titleProduction of controlled networks and morphologies in toughened thermosetting resins using real-time, in-situ cure monitoringen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineMaterials Engineering Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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