Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"Cellulose Acetate Butyrate"”.
-
Surface coating deterioration studies
… carried out, the polymers being polypropylene, cellulose acetate butyrate, polystyrene, polyethylene terephthalate and polycarbonate. Each of the samples was examined using infra-red spectroscopy in the transmission mode.
-
Lyocell Fiber-Reinforced Cellulose Ester Composites - Surface and Consolidation Considerations, and Properties
… the polymer composite system consisting of cellulose acetate butyrate (CAB) and high modulus, continuous, regenerated cellulose fiber (lyocell). Of particular concern were both the interfacial adhesion between the fiber and matrix and the consolidation process in the manufacture of these …
-
Blends of Biodegradable Thermoplastics With Lignin Esters
… Among the biodegradable thermoplastics were cellulose acetate butyrate (CAB), poly-hydroxybutyrate (PHB), poly-hydroxybutyrate-co-valerate (PHBV), and a starch-caprolactone blend (SCL). Lignin esters included acetate (LA), butyrate (LB), hexanoate (LH), and laurate (LL). Blend characteristics …
-
Lyocell Fiber-Reinforced Cellulose Ester Composites-Manufacturing Considerations and Properties
… prepared using high modulus lyocell fibers and cellulose acetate butyrate (CAB). Two reinforcement fiber types: fabric and continuous fiber tow were used. Fabric had advantages of uniform alignment and easier processing, but lacked the use as a unidirectional reinforcement and a continuous …
-
Cellulose-based fibers from liquid crystalline solutions
Solutions of cellulose esters with different concentrations in dimethylacetamide (DMAc) and with different types of substituents were studied in relation to their liquid crystalline (LC) solution behavior. Classical LC behavior was revealed for all solutions. Critical polymer concentration …
-
Synthesis of New Pullulan Derivatives for Drug Delivery
… (ASD) of CLA with promising carboxyl-containing cellulose derivatives, both as macro and nanoparticles. This approach was intended to improve CLA solubility in neutral media, to protect it from acid degradation, and thereby increase its uptake from the small intestine and ultimately its …
-
Synthesis and Characterization of Drug-Containing, Polysaccharide-Based Nanoparticles for Applications in Oral Drug Delivery
… were investigated. In this thesis, several novel cellulose derivatives and a pullulan derivative were studied. Among these polymers, carboxymethyl cellulose acetate butyrate (CMCAB)-drug nanoparticles were investigated in detail. Previous work has shown that the presence of different chemical …
-
TEMPO-oxidized Nanocelluloses: Surface Modification and use as Additives in Cellulosic Nanocomposites
… polysaccharides. TEMPO-oxidized nanocelluloses (TONc) of high surface charge and measuring 3 to 5 nm in width have been recently prepared from TEMPO-oxidized pulp. This study examines as-produced and surface-hydrophobized TONc as reinforcing additives in cellulosic polymer matrices. …
-
Secondary interactions in blends of lignin and cellulose derivatives: composite morphology and properties
… the morphology of solvent cast hydroxypropyl cellulose (HPC) films. These techniques revealed the existence of three phases in the bulk material: 1) an amorphous phase, 2) a crystalline phase, and 3) a phase of intermediate order which arises as a consequence of liquid crystal mesophase …
-
Separation of liquid mixtures by membranes.
… liquid sorption experiments were performed for cellulose acetate butyrate (CAB)/ethyl alcohol/n-heptane system. An interaction force constant characterizing the interaction between the feed species and the membrane was generated and incorporated in the transport equations based on a pore model. …