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.
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Showing 1 to 20 of 41 for “"melamine"”.
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Intumescent formulations incorporating melamine phosphate
… of both video and computer facilities, Melamine Phosphate production was scaled up from small to large laboratory scale, and then commercial scale production was considered. Samples produced at each stage were compared analytically, visually and in fire testing. The separation and drying …
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Melamine phosphate as a component of intumescent coatings
Melamine orthophosphate has been shown to exhibit variations in its chemical constitution, and crystal shape and size, dependent upon the method of production. These crystal types have been incorporated with epoxy resin to produce intumescent coatings, which have been tested on a small scale fire …
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Characterization and reduction of leakiness in melamine formaldehyde microcapsules
… with tackling three major challenges of melamine formaldehyde (MF) microcapsules for delivering of core materials: reducing the formaldehyde content in the formulation, modulate the mechanical properties and reducing the leakage of the core material through the microcapsules. Thus, to …
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Hydrogen Bond Template-Directed Synthesis of Recognition-Encoded Melamine Oligomers
… synthesis of recognition-encoded melamine oligomers (REMO). A copper-catalysed alkyne-azide cycloaddition (CuAAC) reaction between two REMO 3-mers, bearing 4-nitrophenol recognition units, an alkyne and an azide, was found to be templated by a complementary REMO 6-mer phosphine …
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Effects of dietary melamine and cyanuric acid in young Pekin ducks and weanling pigs
In 2007, melamine (MEL) and cyanuric acid (CYA) were added to feed ingredients in an attempt to artificially increase their crude protein and thus their momentary value. However, once ingested MEL and CYA can form insoluble compounds and precipitate in the kidneys, leading to decreased renal …
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Chelating compounds as potential flash rust inhibitors and melamine & aziridine cure of acrylic colloidal unimolecular polymers (CUPs)
… formulated into a clear coating with either a melamine (bake) or an aziridine (ambient cure) and then cured. The melamine system was solvent free, a near zero VOC and the aziridine system was very low to near zero VOC. The coatings were evaluated for their MEK resistance, adhesion, hardness, …
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Impact of carbon micro/mesoporosity on the adsorption behavior of small molecules
… of two model molecules, glucose (C6H12O6) and melamine (C3H6N6) onto three different wellcharacterized carbon substrates, two commercial carbon materials with very different properties, Darco KB-G (AC) and Vulcan XC-72R (VC), and a mesoporous carbon synthesized for this purpose. The adsorption …
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I. In vitro selection of aptamers for perchlorate and melamine II. Towards crystallization of DNAzymes III. A highly selective lead sensor based on a classic lead DNAzyme
… has been carried out to isolate aptamers for melamine, which has become a threat in food safety in the U.S. and China. Two aptamers have been isolated and characterized with high affinity and selectivity. A biosensor based on personal glucose is under development using one of the aptamers, …
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Characterization of mirco/nano mechanical and tribological properties of polymeric coatings deposited on steel
… polymeric coatings—polyurethane, 2K, and melamine—deposited on steel by analyzing the hardness, elastic modulus, and scratch resistance of each coating. This was accomplished by making indentation and scratch tests on each sample with a nano-indenter and analyzing the results with a …
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Computer control of a batch process for resin manufacture
… used in industry for the production of butylated melamine formaldehyde resins. For that purpose a pilot plant was built at Aston University that was interfaced with the Departmental Honeywell 316 Computer for data acquisition and control purposes. The computer control of the plant supplied an easy …
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ORGANIC MICROPOLLUTANTS ANALYSIS AND THEIR METROLOGICAL TRACEABILITY TO SI UNITS
… due to its toxicity, analysed in green tea; - melamine, a molecule commonly used in the plastic industry which became famous for its fraudulent use as adulterant of the protein content of milk in 2008. Ad hoc methods were developed for the extraction of these molecules from food samples and for …
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Phase selective flame-retardant laminates
… potentially synergistic FR systems – Boehmite/Melamine poly(zinc phosphate) (AlOOH/MPZnP), Aluminium diethylphosphinate/Melamine cyanurate (AlPi/MC), and Expandable graphite/Melamine polyphosphate) (EG/MPP) – were selected to enhance fire performance. Concentrating FRs in the top layer offers …
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Molekulių įspaudų technologijos taikymas melamino jutikliuose /
… the design of an electrochemical MIP sensor for melamine sensing. The relevance of this work is based on the lack of research and data to provide cheaper tools for sensitive, reliable, and fast food analysis. During the study, various electrochemical methods such as chronoamperometry, …
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Templated synthesis of synthetic oligomers
… oligomers. This thesis describes a new class of melamine oligomers composed of alternating triazine and piperazine units, which are equipped with phenol and phosphine oxide recognition groups. The order of the recognition groups defines the sequence of the oligomers. Complete sequence library of …
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Development of nitrogen doped resorcinol-formaldehyde gels for carbon capture
… Lewis acid-base interactions with CO2. Melamine (M) is used in order to incorporate Nitrogen (N) into the gel structure; and partially replace the Resorcinol (R) traditionally used, resulting in a Melamine-Resorcinol-Formaldehyde (MRF) gel. Repeatability is crucial to method development …
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Understanding The Mechanism Of Gaseous Iodine Capture Using Sodium-Loaded Carbon Foams
… synthesized from commercially available melamine formaldehyde sodium bisulfite foams. The foams were found to effectively capture iodine as sodium iodide in both a static iodine saturated environment and in a simulated off-gas environment with low concentrations of iodine, high gas …
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Economically motivated adulteration: implications for food protection and alternate approaches to detection
… for dairy products in China leading up to the melamine adulteration event was analyzed to evaluate the utility of this data for alerting to the potential for EMA in a food commodity. This analysis shed insight on variables that may be useful for tracking the production of global commodities for …
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Penetration of Carcinogen Across Porcine Esophagus and Applications of Disposable Pipette Extraction for Forensic Toxicology and Food Safety by Gas and Liquid Chromatography/Mass Spectrometry
… (BZDs) and steroids in urine, and toxins such as melamine and pesticides in various foods. The effects of menthol, ethanol and also acetaldehyde on the flux of NNN permeation across porcine esophageal tissue were studied using Franze diffusion cells. Using LC/MS/MS, the limit of detection (LOD) …
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Crystal Engineering of Pharmaceuticals: Modulating Physicochemical Properties of Active Ingredients by the Formation of Cocrystals
… drug, isoniazid, upon cocrystallisation with melamine, solubility has reduced as per high performance liquid chromatography assay, however, antimicrobial properties determined using REMA assay confirms that cocrystal anti-mycobacterial activity is not compromised. Next, caffeine-glutaric acid …
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