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dc.contributor.advisorValentín, Ricky
dc.contributor.authorBlagg, Amanda
dc.date.accessioned2018-09-25T18:41:04Z
dc.date.available2018-09-25T18:41:04Z
dc.date.issued2012
dc.identifier.urihttps://hdl.handle.net/20.500.11801/968
dc.description.abstractIn this present work, chitosan thin films were synthesized via two synthesis techniques: sol casting and spin coating. Subsequently, silver nanoparticles or carbon black particles were incorporated into the polymeric matrix at various loadings. Produced films were characterized by optical microscopy and profilometry to investigate the morphological properties of the films; Fourier transform infrared spectroscopy and X-ray diffraction to confirm the presence of chitosan in all films; and UV-vis to confirm the presence of the silver nanoparticles. In addition, thermal degradation and thermo mechanical analyses were conducted to establish the temperature range in which produced composites can be used. The average degradation temperature and the average glass transition temperature were determined to be 292±5 °C and 82±8 °C, respectively. Therefore these films may be used at temperatures up to 70 °C without any significant change in mechanical properties, and at temperatures up to 280 °C before experiencing degradation.en_US
dc.description.sponsorshipEngineering Research and Development Center of the Army Corps of Engineers, the Center for Education and Training in Agriculture and Related Sciences and the UPRM-BioSEI.en_US
dc.language.isoenen_US
dc.subjectThermomechanical characterizationen_US
dc.subject.lcshChitosan--Synthesis.en_US
dc.subject.lcshChitosan--Mechanical properties.en_US
dc.subject.lcshNanoparticles.en_US
dc.subject.lcshThermal stresses.en_US
dc.subject.lcshChitosan--Thermomechanical treatment.en_US
dc.subject.lcshComposite materials--Thermomechanical properties.en_US
dc.subject.lcshComposite materials--Effect of temperature on.en_US
dc.subject.lcshSilver--Thermomechanical properties.en_US
dc.titleSynthesis and thermo-mechanical characterization of bare and composite chitosan filmen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2012 Amanda Blaggen_US
dc.contributor.committeePerales-Pérez, Oscar Juan
dc.contributor.committeeRomán, Felix R.
dc.contributor.representativeBriano, Julio
thesis.degree.levelM.S.en_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.type.thesisThesisen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.description.graduationSemesterSummeren_US
dc.description.graduationYear2012en_US


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    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

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