Carboxymethylcellulose Acetate Butyrate Water-Dispersions as Renewable Wood Adhesives

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dc.contributor.authorParis, Jesse Lorenen
dc.contributor.committeechairFrazier, Charles E.en
dc.contributor.committeememberRoman, Marenen
dc.contributor.committeememberEdgar, Kevin J.en
dc.contributor.departmentWood Science and Forest Productsen
dc.date.accessioned2014-03-14T20:43:47Zen
dc.date.adate2010-09-09en
dc.date.available2014-03-14T20:43:47Zen
dc.date.issued2010-08-05en
dc.date.rdate2012-02-07en
dc.date.sdate2010-08-19en
dc.description.abstractTwo commercial carboxymethylcellulose acetate butyrate (CMCAB) polymers, high and low molecular weight (MW) forms, were analyzed in this study. High-solids water-borne dispersions of these polymers were studied as renewable wood adhesives. Neat polymer analyses revealed that the apart from MW, the CMCAB systems had different acid values, and that the high MW system was compromised with gel particle contaminants. Formulation of the polymer into water-dispersions was optimized for this study, and proved the "direct method", in which all formulation components were mixed at once in a sealed vessel, was the most efficient preparation technique. Applying this method, 4 high-solids water dispersions were prepared and evaluated with viscometry, differential scanning calorimetry, dynamic mechanical analysis, light and fluorescence microscopy, and mode I fracture testing. Thermal analyses showed that the polymer glass transition temperature significantly increased when bonded to wood. CMCAB dispersions produced fairly brittle adhesive-joints; however, it is believed toughness can likely be improved with further formulation optimization. Lastly, dispersion viscosity, film formation, adhesive penetration and joint-performance were all dependent on the formulation solvents, and moreover, these properties appeared to correlate with each other.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-08192010-124830en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08192010-124830/en
dc.identifier.urihttp://hdl.handle.net/10919/34644en
dc.publisherVirginia Techen
dc.relation.haspartParis_JL_T_2010.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectadhesive penetrationen
dc.subjectmode I fracture testingen
dc.subjectCarboxymethylcellulose acetate butyrateen
dc.subjectCMCABen
dc.subjectviscosityen
dc.subjectwood adhesivesen
dc.subjectdynamic mechanical analysisen
dc.titleCarboxymethylcellulose Acetate Butyrate Water-Dispersions as Renewable Wood Adhesivesen
dc.typeThesisen
thesis.degree.disciplineWood Science and Forest Productsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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