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 8 of 8 for “"Barrier film"”.
-
Development of micro-scale and automated membrane extraction systems for water analysis
… and reproducible results. The concept of using a barrier film as a means of providing a diffusional barrier on the membrane fiber was developed. It was found to play an important role by protecting the organic acceptor from migration, resulting in much less acceptor loss. The analytes were …
-
Hydrate formation and adhesion on low surface energy materials
… by promoting the formation of a cyclopentane barrier film between the hydrate and the solid surface. The presence of this liquid film depends on the spreading coefficient of cyclopentane on the solid in the presence of water. Through a systematic modification of the surface chemistry of the …
-
Design, fabrication and testing of low-cost vacuum insulated packaging
… bounded by inner and outer bags of high-barrier film. A vacuum chamber and sealing apparatus were constructed in order to fabricate these evacuated Perlite packages, and a microcontroller-based temperature-logging sensor was developed and built for in-situ temperature measurement over …
-
Instrumentation For the Study of Tantalum Diffusion Barriers Between Silicon Substrates and Copper Films
… diffuse into silicon; therefore, a diffusion barrier between silicon and copper is needed. Currently tantalum and tantalum nitride are two materials that have been successfully used as diffusion barriers, but a detailed study of the physical properties that affect their diffusion blocking …
-
Formulation of Biodegradable Polysaccharide Blend as Replacement of Single-use Plastics
… end of life, specifically as a biodegradable film that exhibits similar materials properties as typical plastics. However, these materials can be difficult to process and achieve suitable mechanical properties. The primary goal of this research was to develop and optimize a …
-
Permeability and Flammability Study of Composite Sandwich Structures for Cryogenic Applications
… for properties modifications and developing barriers. The main effort will be extended to tank wall’s internal skin design. The main requirements for internal composite stack are: • introduction of barrier film (e.g. honeycomb material paper sheet) to reduce the wall permeability to …
-
Thermal properties of granular silica aerogel for high-performance insulation systems
… a vacuum would require the incorporation of a barrier film into the panel system, some analyses were done into the thermal bridging potential and gas diffusion requirements of such a film. Additionally, physical prototyping was done to explore how the film would be incorporated into the …
-
Designing High Performing Durable Bio-Based Coatings for Packaging Applications
… polymers can form strong, high-performance films but are limited by moisture sensitivity and brittleness. Through chemical modification, compositional design, and controlled processing, this work demonstrates how their barrier and mechanical properties can be tuned to control and improve …