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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 14 of 14 for “"oxygen barrier"”.
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Development of a Humidity-Resistant Coating to Impart High Oxygen Barrier Performance to Food Packaging Films
<p>Oxygen barrier coatings have the potential to greatly extend the lifetime of certain food products by incorporating them into existing food packaging. Present technologies face definite challenges of maintaining high performance, while attaining simple and inexpensive preparation methods. The …
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Improved Properties of Poly (Lactic Acid) with Incorporation of Carbon Hybrid Nanostructure
… low glass transition temperature and poor gas barrier properties to restrict the application on hot contents packaging and long-term food packaging. The objectives of this research are: (a) to reduce coagulation of graphene oxide/single-walled carbon nanotube (GOCNT) nanocomposite in …
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Novel Biodegradable Poly (Glycolic Acid) Dual-Layer Packaging System Using Spray Coating
Polymer films are essential barriers for food and consumer packaging, but because they are durable, they contribute to accumulating waste that infiltrates ecosystems, enters food chains as microplastics, and overwhelms disposal systems. This research responds by developing a biodegradable packaging …
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Oxidation barrier and light protective packaging properties for controlling light induced oxidation in milk
… of light protective additives (LPA) with a high oxygen barrier package under fluorescent and LED lighting conditions simulating a retail refrigerated dairy case. The extent of oxidation in 2% milk packaged in polyethylene terephthalate (PET) packages with different light interference properties …
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The blending and permeability of polymers for packaging applications
… develop a material with optimal water vapour and oxygen barrier properties. The effect of compatibilizers on phase dispersion has been investigated using three commercial Polybond's, PB3002, PB1001, and PB3009. Three compatibilizers prepared in-house were also used as, maleic anhydride(MA) grafted …
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Triplet-Triplet Annihilation Upconversion in Solid-State Organic-Inorganic Ureasil Polymer Hosts
… without any special treatment, including deoxygenation. Detailed analysis of the structure-function trends revealed that while a low glass transition temperature is required to promote TTA-UC molecular collisions, a higher inorganic content is the primary factor that determines the UC …
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Development of Cellulose-Titanium dioxide-Porphyrin Nanocomposite Films with High-barrier, UV-blocking, and Visible Light-Responsive Antimicrobial Features
… from quality-deteriorating factors, including oxygen, light irradiation, and foodborne pathogenic microorganisms (e.g., Escherichia coli). There has been a growing interest in employing ultra-porous metal-organic frameworks (MOF) with visible light-responsive antibacterial mechanisms to …
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ECO-SUSTAINABLE PACKAGING MATERIALS FOR THE FOOD INDUSTRY (ECOPACKMAT)
… behavior, high stiffness, and excellent oxygen barrier performance makes microfibrillated cellulose the ideal substrate for producing eco-friendly stand-alone films for the preservation of oxygen-sensitive foods (Chapter IV). At last, cellulose nanocrystals can be expediently used as …
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Designing High Performing Durable Bio-Based Coatings for Packaging Applications
… processing, this work demonstrates how their barrier and mechanical properties can be tuned to control and improve barrier and mechanical performance of renewable polymers. Chapter 2 presents a fully biodegradable multilayer structure composed of a cellulose nanocrystal–chitin nanofiber …
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Mass transport in polymers
… of the permeability in the composite materials. Oxygen scavenging systems can overcome lack of barrier properties in common polymers that forbids their application in sensitive applications as food packaging. The final goal of obtaining a membrane almost impermeable to oxygen leads to …
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ANALYSIS AND DEVELOPMENT OF MIRABILIS EXPANSA (RUIZ AND PAV.) STANDL.; FOR POTENTIAL AS A NEW ROOT CROP OUTSIDE THE ANDES
… previous chapters. The results show that valved oxygen barrier bags, designed for clothing storage, with a small number of oxygen absorbers, can retain conditions for sufficient periods to treat specimens for pests. This allows the bags to be used as inexpensive nitrogen chambers, to treat …
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From Quantum Mechanical Restrictions to Everyday Applications: Programmable Tags using Organic Phosphorescence
… materials the presence of adjacent molecular oxygen leads to a complete vanishing of phosphorescence, this emission can locally be tuned by manipulating the respective oxygen concentration. It is shown that a very elegant, non-contact way of achieving that is by using light of different …