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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 65 for “"polymeric matrix"”.
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Structure-property relationships from molecular simulation of polymeric matrix composites
… and tailorable mechanical properties that polymeric matrix composites can provide. However, the number of filler types, surface functionalities, and filler orientations in composites reinforced with nano and macroscale fillers leads to a complicated and lengthy trial and error experimental …
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The role of the fiber/matrix interphase in the static and fatigue behavior of polymeric matrix composite laminates
… “phase” between the bulk fiber phase and bulk matrix phase in a polymeric matrix composite. This finite-thickness region — termed the interphase — possesses mechanical, physical, and chemical properties that are distinct from the fiber and matrix constituents. Thus, the interphase embodies the …
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Encapsulated metal hydride and carbon particles in polymeric matrix- an approach to enhances hydrogen storage properties of metal hydrides
… the Encapsulated LaNi5 and Carbon Particles in Polymeric Matrix for Hydrogen Storage Application. The structure of LaNi5 was maintained while partial replacement of La by Ce to develop La0.6Ce0.4Ni5. The metal-polymer composites are an effective approach to protect the metal hydrides from oxygen …
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Fabrication and Gas Permeation Studies on Polyimide/Layered-Aluminum Phosphate Nanocomposite Membranes
… phosphate with a large aspect ratio into a polymeric matrix. The aluminum phosphate has eight membered rings, which could potentially serve as a size selective medium. A hexafluorinated polyimide, 6FDA-6FpDA-8%-DABA, was used as the polymeric matrix. The polyimide and the aluminum phosphate …
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Polyelectrolyte multilayers as nanostructured templates for inorganic synthesis
… of inorganic matter embedded within a soft polymeric matrix on the nanometer length scale are an important class of materials with potential application in optoelectronics and photonics, magnetic media, and batteries and fuel cells. In addition to the component material properties, the …
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Advanced Electrohydrodynamic Atomisation Engineered Microneedle Coatings
… here shows the successful coating of MNs with polymeric dye composites using Electrohydrodynamic atomisation (EHDA). Initially the rheological behaviours of polymeric solutions and morphological characterisation was carried out. This was followed by Quality by Design (QBD) implementation for …
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Multifunctional Graphene-Based Nanomaterials for Removal of Diverse Water Contaminants
… control, as well as the inclusion of GO into a polymeric matrix to develop a new class of nanocomposite for contaminant removal. A novel technique to remove biofouling by laser irradiating biofouled graphene-coated membrane surfaces was developed. A laser beam was used to heat the graphene …
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Antimicrobial and antioxidant active packaging incorporated with hop (Humulus lupulus L.) extract: development, characterization and application in meat product
… of the extract logged into distinct sites in the polymeric matrix, with the potassium salts of β-acids located majorly inside the PLA sheets and the propylene glycol on the outer surface. Sheets added with 5% of hop β-acids significantly improved the inhibitory effects towards non-sporulated …
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Mechanics of Composite Hydrogels
… – which consist of fillers in a swollen polymeric matrix – are ubiquitous structural components of biological materials, biomedical devices, food, and consumer products. The mechanical properties of composite hydrogels are pivotal for their respective applications, and are governed by …
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PREPARATION AND CHARACTERIZATION OF AN ELECTROSPUN GELATIN/DENDRIMER HYBRID NANOFIBER DRESSING
… electrospun to mimic the natural extracellular matrix (ECM). Gelatin is biocompatible, biodegradable, non-toxic, and easily available. The antibiotic, doxycycline, has the ability to inhibit matrix metalloproteinases. Matrix metalloproteinases, which occur in excess in chronic wounds, degrade …
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Integrated array-on-a-chip for genotyping
… of bead types are sequentially spotted onto a polymeric matrix (or gel pad) on the surface of a glass chip. The spotted beads are firmly immobilized to the gel pad, acquiring spatial codes (or addresses) that allow them to be identified. Beads can further be immobilized onto hundreds or …
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Dispersion and dissolution kinetics of API particles in pharmaceutical hot melt extrusion
… elementary step, along with the melting of the polymeric excipient that precedes it, and mixing which accelerates the dissolution process. A major concern in pharmaceutical HME is the thermal degradation of the API. To avoid overexposure of API to heat while ensuring complete dissolution of the …
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Mode I Delamination Fracture Characterization of Polymeric Composites under Elevated Temperature
… of the major failure modes seen in the laminated polymeric matrix composite (PMC). Accurate prediction of delamination initiation and propagation is important for the design and analysis of robust composite structures. Existing experimental methodologies that are based on linear elastic fracture …
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Epoxy matrix composite strain sensing and cure monitoring
… which permits the state of cure of an epoxy matrix to be monitored, when the sensor is embedded in a polymeric matrix composite. By using a glass rod with a retroreflecting end for the target fiber in the EFPI sensor, the intensity of the light reflected depends on the refractive index of the …
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Energy absorption in Ni-Mn-Ga/ polymer composites
… materials made from Terfenol-D particles in a polymeric matrix could solve the issue of the brittleness while retaining a large fraction of the strain output of the alloy. At first glance a similar approach could be used to solve the brittleness issue of Ni-Mn-Ga, but the low blocking force of …
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From molecular Au(I) complexes to subnanoclusters and nanoparticles: study of the influence of secondary interactions in (photo)catalytic systems
… through their deposition on carbon-based matrixes. Everything constitutes a relevant strategy for the design of more efficient and durable catalytic systems. First, the catalytic ability of the polymeric complex [Au(C-CPh)]n in the A3 coupling reaction for the obtention of propargylamines …
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Entwicklung von Polymermembranen für die Abtrennung von Kohlendioxid aus Gasströmen
… for selective separation of carbon dioxide with polymeric membranes is based upon the fact that amino groups in aqueous matrices facilitate the transportation of carbon dioxide. Therefore polymethacrylates and polyacrylates with different amino groups in side chains, polymers based on …
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Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
… are required to enhance the adhesion of filler-polymeric matrix. In this research, 4,4'-Methylene diphenyl diisocyanate (MDI) was used as modifying agent of graphite. The effect of modification on chemical structure, mechanical properties, adhesive toughness and morphology of epoxy composite …
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Non-invasive drug delivery to the posterior segment of the eye: Development of formulation strategies and evaluation of ocular distribution and pharmacological activity
… we have used melt cast technology to develop a polymeric matrix film system to deliver Hesperetin (HT), a bioflavanoid, to the posterior segment of the eye. The film is 4 mm x 2 mm in dimension and 0.2 to 0.4 mm in thickness. When the HT-film was tested in vivo in anesthetized rabbit model, HT …
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