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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 20 of 43 for “"Nanofiller"”.
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Mg-Al Layered Double Hydroxide: A Potential Nanofiller and Flame-Retardant for Polyethylene
… layered double hydroxide (LDH) as a potential nanofiller and flame-retardant for polymers with special reference to polyethylene. LDH is a mixed hydroxide of di- and trivalent metal ions that crystallizes in the form of mineral brucite. The basic reason for selecting LDH or more specifically …
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Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites.
… reduction on the extracted solid phase nanofiller S3 and nanofiller S4 was 98.6% and 98.5% respectively after demulsification. The demulsified spent oil-based drilling fluid solid extracts were below OSPAR regulation of less than 1% oil on cutting by weight. However, recycling of the …
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Controlling Cocontinuous Polymer Blends with Nanofillers Jammed at the Interface
… to control and optimize the phase morphology, nanofillers have been localized and jammed at the interface as an effective method to suppress the coarsening and stabilize the cocontinuous structure during annealing. However, the mechanisms involved in the morphology stabilization by interfacial …
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Coarse-grained simulations to predict structure and properties of polymer nanocomposites
… interfacial areas between the host polymer and nanofiller. This unique feature, due to the size of the nanofiller, is understood to be the cause of enhanced mechanical, electrical, optical, and barrier properties observed of PNCs, relative to the properties of the unfilled polymer. This …
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Mechanisms of Enhancing Solid Polymer Electrolytes Using Nanofillers and Ionic Liquid for Applications in Flexible Lithium Ion Batteries
… is the influence of selected additives including nanofillers, and ionic liquids on the performance of the polymer electrolytes and flexible lithium ion batteries. The effect of nanofillers on ion conductivity of polymer electrolytes is investigated using a continuum, bulk level approach. Based on …
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Optical and thermal characteristics of thin polymer and polhedral oligomeric silsesquioxane (POSS) filled polymer films
… (POSS) derivatives may be useful as a nanofiller in nanocomposite formulations to enhance thermal properties. As a model system, thin films of trisilanolphenyl-POSS (TPP) and two different molar mass PtBA were prepared as blends by Y-type Langmuir-Blodgett film deposition. For …
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Advanced Rheological Characterization of Nanofilled Materials for Automotive Applications
… rheological behavior arising from addition of nanofillers, especially in strong shear and extensional flows. In this thesis, these challenges are addressed through design of a rapid characterization protocol for the extensional rheology of such material systems, as well as a comprehensive …
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Viscoelastic and fracture behaviour of polyolefin based nanocomposites
… correlations between fitting parameters and nanofiller surface area. For as concern tensile dynamic mechanical properties, the introduction of the nanofiller lead to an increase of dynamic moduli (Eâ€TM and Eâ€TMâ€TM) and to a lowering of tanÎ ́ values, especially when high surface area …
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PHOTOACTIVE HYBRID GRAPHENE-BASED POLYMERIC MATERIALS FOR WATER PURIFICATION
… polymer nanocomposites, being used as an active nanofiller and support of freestanding devices as well. Owing to the possibility of significant improvement as co-catalyst, graphene materials are widely used in combination with polymer-based photocatalysts becoming appealing in water purification …
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Use of Rheology to Assess Structures in Polymer Nanocomposites
… with improved dispersion-states and properties. Nanofillers such as undoped and nitrogen-doped multi-walled carbon nanotubes (MWCNTs) and organically modified clays as well as more recently developed nanofillers such as graphene nanoribbons (GNRs) were employed for this purpose. In this context, …
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Interfacial Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Amphiphiles and Polymer Blends: Thermodynamics, Morphology, and Rheology
… systems. By treating POSS derivatives as ideal nanofiller for studying confinement effects on filled polymer systems, amphiphilic poly(dimethylsiloxane) (PDMS) derivatives with different polar functional groups are studied as blends with TiBuP and octaisobutyl-POSS at A/W to resolve one of the …
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Nano-filled Epoxy: Mechanical and Fire Behavior and Modeling of Nanocomposite Columns Under Fire
… Diglycidyl Ether of Bisphenol A epoxy. The nanofillers used are montmorillonite nanoclays and carbon nanofibers. Three types of nanocomposites are manufactured: epoxy-clay, epoxy-carbon nanofiber, and epoxy-clay-carbon nanofiber nanocomposites. Fracture tests performed include Izod impact …
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Schichtsilicate als effiziente Bausteine für funktionelle Nanokomposite
… ratio and the mechanical properties of the nanofiller, as well as its compatibilization with and texturizing within the polymer matrix. Firstly, an important issue was the synthesis of a highly pure, coarse-grained layered silicate that fulfilled the requirements as nanofiller. A combination …
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Design and characterization of aromatic thermosetting copolyester resin for polymer matrix nanocomposites
… copolyester resin enriched with various forms of nanofiller particles. The molecular weight and crosslinking functionality of precursor oligomers during condensation polymerization reaction regulate thermal-mechanical properties of self-generated foam morphologies. Aluminum foam layered aromatic …
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Nanocomposite Dispersion: Quantifying the Structure-Function Relationship
… the relationships between the composition of the nanofiller, matrix chemistry, processing procedures and resulting dispersion is a necessary step to tailor the physical properties. A method is presented that incorporates high-contrast imaging, an emerging scanning electron microscopy technique to …
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Two-Dimensional Titanium Carbide MXene for Lithium-ion Conductive Solid-state Electrolytes
… (2D) titanium carbide (Ti3C2Tx) MXene as a nanofiller. 2D Ti3C2Tx MXene was synthesized using a mild etching approach involving low-toxicity acids, enabling a safer and more environmentally friendly alternative to traditional synthesis methods. The resulting MXene was characterized using …
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Unexplored Dimensions of Processing Phase Inversion during Polymer Melt Blending
… reaction, and the addition of an inorganic nanofiller on the processing-phase inversion. Microscopic techniques, such as SEM or optical imaging, have been primarily used to characterize the different morphologies that occur during the inversion. In this thesis, we analyze the torque …
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Towards Mechanical Reinforcement in Polymer Layered Silicates Nanocomposites of the Second Generation
This dissertation focuses on the optimization of nanofillers based on synthetic layered silicates for preparation of nanocomposites with improved mechanical reinforcement. The mechanical characterization was done in collaboration with the Polymer Engineering Department at Bayreuth University in the …
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Microfabrication of conductive polymer nanocomposite for sensor applications
… carbon nananotubes (MWCNTs) as a conductive nanofiller. To achieve uniform distribution of carbon nanotubes within the polymer, an optimized dispersion process was developed, featuring a strong organic solvent—chloroform, which dissolved PDMS base polymer easily and allowed monodispersion of …
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Surface Characterization of Siloxane, Silsesquioxane, and Maleic Anhydride Containing Polymers at Air/Liquid Interfaces
… composites. The utility of POSS as a potential nanofiller in blends with polymers such as poly(dimethylsiloxane) (PDMS) and poly(vinylacetate) (PVAc) was explored using surface pressure-area per monomer isotherms (P-A) and BAM. Substantial morphological differences are seen between polymer …
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