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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"polymer-silica"”.
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Untersuchung der Wechselwirkung von Polymer/Silica-Mischungen mit Festkörper-NMR
… von pyrogenen und gefällten Kieselsäuren (Silica) mit unterschiedlichen Styrol-Butadien-Copolymerisaten (SBR) mittels Festkörper-NMR. Die transversale Relaxationszeit T2 der spezif. chemischen Gruppen von extrahierten Mischungen wurden in Relation zu den entsprechenden Zeiten der reinen …
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Characteristics and modeling of the fracture properties of polymer-silica microparticulate composites via macroscopic scratch tests
… inclusion content on the material properties of polymer-silica microcomposites, both experimentally and theoretically. A wax mixture with spherical glass bead inclusions is developed as a model material. The hardness and fracture toughness of composites containing 0%, 5%, 10%, and 20% spherical …
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Novel Low Dielectric Constant Thin Film Materials by Chemical Vapor Deposition
… 90% confidence level. A low dielectric constant polymer, poly(tetrafluoro-p-xylylene) (VT-4), was synthesized by chemical vapor deposition from 4,5,7,8,12,13,15,16-octafluoro-[2.2]-paracyclophane (DVT-4). The main motivation was to find a cheaper alternative to poly( alpha, alpha , alpha ', alpha …
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Comprehensive Study of Semicontinuous Emulsion Polymerisation Processes for Producing Nanoparticles
Semicontinuous emulsion polymerisation offers flexibility and versatility for manufacturing colloids for a wide range of applications. The technique has been studied since 1950s, however, its importance has only recently realized as evidenced by increasing attentions it has received in recent …
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Stress development in particulate, nano-composite and polymeric coatings.
… of pendular rings between the particles. Silica nanocomposite coatings were fabricated from suspension of nano sized silicon dioxide particles (20 nm) and polyvinyl alcohol (PVA) polymer. The stress in silica nano-composite goes through maximum as the amount of polymer in the coating …
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Surface Characteristics of Silica Polyamine Composites
… were to explore the surface characteristics of silica polyamine composites (SPC) by elucidating coordination environments, measuring surface stability, and comparisons with analogous materials. Application of SPC materials as supports for heterogeneous catalysts was also investigated. Analytical …
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Surface Characteristics of Silica Polyamine Composites
… were to explore the surface characteristics of silica polyamine composites (SPC) by elucidating coordination environments, measuring surface stability, and comparisons with analogous materials. Application of SPC materials as supports for heterogeneous catalysts was also investigated. Analytical …
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Phosphorus-Containing Polymers, Their Blends, and Hybrid Nanocomposites with Poly(Hydroxy Ether), Metal Chlorides, and Silica Colloids
Phosphorus-containing high performance polymers have been extensively studied during the last 10 years. These materials are of interest for a variety of optical and fire resistant properties, as well as for their ability to complex with the inorganic salts. This dissertation has focused on the …