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Showing 1 to 20 of 23 for “"volatile organic compound (VOC)"”.
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Control of Volatile Organic Compound (VOC) Air Pollutants
A variety of methods exist to remove volatile organic compound (VOC) air pollutants from contaminated gas streams. As regulatory and public opinion pressures increase, companies are searching for more effective methods to control these emissions. This document is intended as a guide to help …
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Evaluation of Stain Blocking Primer Coatings with Low Volatile Organic Compound (VOC) Content and Effects of Drying Conditions on the Properties of Water Reducible Coatings for Polypropylene
… Air Resources Board (CARB) plans to reduce the volatile organic compound (VOC) limit of specialty primers, sealers, and undercoaters (SPSU), also referred to as stain blocking primers, from 350 g/L to 100 g/L in January of 2012. These coatings are primarily used as stain blocking primers over a …
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A Comparison of Solvent and Water-Borne Alkyd Coatings and the History of VOC Regulations in the United States
… have gone out of favor due to concerns over volatile organic compound (VOC) content. However, due to recent focus on renewable raw materials, alkyds are making a comeback in waterborne form. Water based alkyd coatings are known to have poor shelf stability and corrosion resistance, as well as …
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Ozone Decomposition and Acetone Oxidation on Manganese Oxide Catalysts
… in the oxidation of acetone, a typical volatile organic compound (VOC), and ozone decomposition. This topic is of great value because of environmental concerns of the elimination of the harmful VOCs and ozone. Manganese oxide was chosen because it is a well-known complete oxidation …
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Study of vapor/gas permeation using thin immobilized liquid membrane
… three approaches were used: evaporation of the a volatile solvent; acrylic acid-grafted hollow fibers providing a thin hydrophilic layer; pressurization technique. For removal of volatile organic compound (VOC), a thin ILM of silicone oil incorporated in the micropores of a hydrophobic hollow …
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Predictive Modeling of Volatile Organic Compound Measurements
… historical data. Intelligent applications using volatile organic compound (VOC) data have not been as heavily investigated as the aforementioned signals. This thesis takes a first principle approach to analyzing historic VOC data in order to make predictions about future VOC values. The central …
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UV-CURABLE PROTECTIVE COATING FOR THE INNER SURFACE OF STEEL PIPES
… the market, contributing to polluting and toxic volatile organic compound (VOC) emissions. UV-curable coatings offer a compelling solution with low environmental impact and efficient pro-duction processes that avoid VOC emissions, reduce energy consumption significantly, and lower product costs. …
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Ultrasonic Microscopy Analysis of Corrosion -- A Nondestructive Evaluation of Paint Weathering Effects <i>and</i> Synthesis and Characterization of Nanoscale Water-reducible Polymer Particles
… acrylic copolymers (PMMA-MAA) with zero volatile organic compound (VOC) were synthesized and characterized. Five controllable variables which were molecular weight, acid number, %solids of polymer dissolved in THF, extent of neutralization and flow rate of water reduction were applied in …
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Forest Isoprene Emissions: New Insights from a Novel Field Instrument
Isoprene is an important biogenic volatile organic compound (VOC) in natural systems. Its emission by certain species of plants depends on solar radiation levels and on temperature, as well as other factors. Once in the atmosphere, it is rapidly transported and oxidised, and the subsequent …
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Refractometry Studies of the Optical Properties of Polymer Films and the Development of Polymer Coated Refractive Index Sensors
… ∆d < 3-5%. The refractive indices of 29 common organic solvents as well as aqueous solutions of sodium chloride, sucrose, ethylene glycol, glycerol, and dimethylsulfoxide were measured at λ = 1550 nm. These measurements will be useful for future calibrations of near-infrared refractive index …
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The analysis of the entomological and chemical decomposition of human remains to ultimately assess the viability of the domestic pig as a substitute in forensic applications
… decomposition, primary dipteran colonizers, and volatile organic compound (VOC) production. Domestic pigs in Oshawa, Ontario, had rates of decomposition that were highly alike. Rates of insect colonization were rapid, with little to no delay. The production of 5 known apneumones showed no …
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Sources and sinks of selected trace gases in the tropospheric boundary layer of the eastern United States
… and global climate issues. In the first study, volatile organic compound (VOC) measurements collected at a marine and continental site in northern New England were compared and examined for evidence of regional VOC sources. Biogenic VOCs, including isoprene, monoterpenes, and oxygenated VOCs, …
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The Development of the Contaminant Exceedance Rating System (CERS) for Comparing Groundwater Contaminant Data
… the Environment[AFCEE]). Basewide groundwater volatile organic compound (VOC) data from Summer/Fall 2009 was utilized. ESRI¿¿ ArcGIS Version10.0 was used to map the resultant CERS Values, symbolized by their Ranking Categories. By implementing the CERS, the following were successfully …
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Ecological and evolutionary aspects of interactions between microbes coinfecting plants
… rates of electron transport. Infection status, inorganic nitrogen fertilizer, and rhizobia had significant effects on components of plant volatile organic compound (VOC) emissions, with nitrogen source significantly affecting overall VOC profile composition. Chapter 5 analyzes how reductions in …
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Processes for the Fabrication of SU-8 Structures and Sputtered Materials on Porous Glass for Electrospray Thruster Manufacturing
… the pores within the substrate are loaded with a volatile organic compound (VOC), allowing a structure to be fabricated on the substrate surface via photolithography, without the material entering the substrate’s pores. To regain the substrate’s porous structure, the VOC is removed …
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Reducing the air quality impacts of aircraft activity at airports
… exposure response to nitrogen oxide (NOx) and Volatile Organic Compound (VOC) emissions is quantified as a function of ambient NOx and VOC concentrations using ozone exposure isopleths. This is the first time that ozone exposure isopleths are created for all locations in the US, using emission …
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Low Cost Manufacturing and Performance Evaluation of Soy-based Polyurethane/E-glass Composites
… on releasing of styrene (considered a volatile organic compound-VOC) for open-molding composite processes such as hand layup and spray layup. Therefore, there is great interest among composite manufacturers to use styrene-free resins and low-cost closed molding processes. There is a …
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Development of a Novel Methodology for the Identification of VOC Emission Sources in Indoor Environments based on the Material Emission Signatures and Air Samples measured by PTR-MS
… air quality is the identification of indoor Volatile Organic Compound (VOC) emission sources to clearly pinpoint the sources of concern in a field condition. This study represents the first attempt in developing a new technique to find the sources that may be invisible or hidden based on the …
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Ganaspis kimorum as a classical biological control agent for Drosophila suzukii: from laboratory studies to field assessments
… and short range (Chapters 5-7). Olfactometry and volatile organic compound (VOC) analyses showed that parasitoids attraction toward the host was time-dependent (Chapter 5). While G. kimorum females were attracted by host’s cuticular hydrocarbons present in fruits infested with young larvae, they …
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Modification of a commercial poly (VDF-co-HFP) copolymer latex
… impart unique properties to organofluorine compounds. Flu-oropolymers exhibit a combination of desirable traits, including high thermal stability, low coefficient of friction, chemical inertness, oleo- and hydrophobicity, and low surface tension. Among the fluoropolymers, polyvinylidene fluoride …
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