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Showing 1 to 20 of 113 for “"HDPE"”.
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Termékváltás fejlesztési lehetőségek vizsgálata a HDPE-2 üzemben
Titkosított diplomamunka Titkosítás ténye: Üzleti és bizalmas adatokat tartalmaz, melynek közzététele hátrányosan érintené a MOL Petrolkémia Zrt. tevékenységét. Titkosítás idejének várható lejárta: -
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Understanding Functional Silica Additives for HDPE Composite Materials
… silica additives on high-density polyethylene (HDPE) for the potential use as a liner material against corrosion in challenging environments such as oil and gas pipelines. The main body of work involves the analysis of the chemistry of Aerosil® grade pyrogenic silicas mainly A200, R8200, R9200, …
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Market development for recycled high density polyethylene (HDPE)
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1990.
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Long-Term Performance of HDPE Geomembranes as Landfill Liners
High density polyethylene (HDPE) geomembranes are normally used as part of a composite liner for waste containment facilities such as municipal solid waste (MSW) landfills and heap leach pads. Field conditions, which include physical stresses on the geomembrane, elevated operating temperatures, and …
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Microwave-assisted pyrolysis of HDPE using an activated carbon bed
… this procedure, using high density polyethylene (HDPE) as a model plastic. Initial tests with the batch input of HDPE produced a condensed pyrolysis oil comprising 35.5–45.3% aromatics, with the remainder primarily short-chain aliphatics. This oil was approximately three times lighter than that …
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Ageing of HDPE Geomembranes Used to Contain Landfill Leachate or Hydrocarbon Spills
The ageing of high density polyethylene geomembrane (GM) liners used to minimize advection and diffusion of contaminants in municipal solid waste landfill leachate and in hydrocarbon spills to the environment is examined. The evaluation of the ageing of GMs used in landfills involved four …
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Shape-Stabilization of PCM/HDPE Composites with 3D-Printing Applications for Battery Thermal Management
… properties of a novel shape-stabilized PCM/HDPE composite extruded filament. The extruded filament can then be used in a 3D printer for custom PCM/HDPE shapes. These custom PCM/HDPE shapes can be used to help reduce weight, energy consumption, and complexity of the thermal management of the …
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Thermochemical conversion of high-density polyethylene (HDPE) to value-added products using cobalt-based catalysts
… and society. High-density polyethylene (HDPE) covers 13% of the total waste plastic. Pyrolysis is a thermochemical method of treating plastic thermally under an inert atmosphere to convert HDPE into valuable products, such as wax, oil, gas, and char. The current thesis explores the …
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Advancing sustainability in additive manufacturing: material formulation and process development for recycled PET and PET/HDPE blend
… processes. The high-density polyethylene (HDPE) contamination in recycled PET (r-PET) in waste stream further complicates its reprocessing, limiting its application in high-performance materials, because of deteriorating of r-PET properties. to address the issue of reprocessing and …
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Estudio de prefactibilidad para la instalación de una planta procesadora de cascos plegables elaborados de plástico reciclado HDPE
… plegables elaborados de plástico reciclado HDPE. La demanda del proyecto en el año 5 es de 16 838 cascos en presentaciones de una caja. El público objetivo está conformado por las personas de 18 a 35 que pertenecen al NSE A y B con una captura de mercado de 46,1%. A la vez se estableció el …
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Effect of shelf-life and light exposure on acetaldehyde concentration in milk packaged in HDPE and PETE bottles
… packaged in glass, high density polyethylene (HDPE), amber PETE, clear PETE, and clear PETE with UV light block and was exposed to fluorescent light of 1100-1300 lux (100-120 FC) at 4oC for 18 days. Sensory and chemical analysis and was done on milk from all containers over a period of 18 days. …
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Quantitative Analysis of Antioxidants from High Density Polyethylene (HDPE) by off-line Supercritical Fluid Extraction Coupled High Performance Liquid Chromatography
… Ethanox® 330 from high density polyethylene (HDPE) followed by HPLC/UV analysis. The effects of temperature, modifier type, and modifier concentration were investigated. Once the optimal extraction conditions were determined, the extraction efficiency of Ethanox ® 330 as a single additive and …
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Processing and structure-property behavior of microporous polyethylene: from resin to final film
… microporous membranes from linear polyethylene (HDPE) was investigated in this dissertation. Two different HDPE resins with identical M̅<sub>n</sub> (14,600) values but different distributions (M̅<sub>w</sub>/M̅<sub>n</sub>=10.3, 15.1) were utilized for this study. In the extrusion process, the …
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High density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for solar disinfection of drinking water in northern region, Ghana
… feasibility of high density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for the solar disinfection of drinking water in the Northern Region of Ghana, in a process know as SOLAIR. This study is in line with the intention of Pure Home Water, a …
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Modulation of Hydroxyl Radical Reactivity and Radical Degradation of High Density Polyethylene
… literature concerning high density polyethylene (HDPE) degradation. Exposure to treated water systems is known to greatly reduce the lifetime of HDPE pipe. While there is no consensus on what leads to HDPE breakdown, evidence suggests oxidative processes are at play. The research which follows in …
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Partial discharge ageing of polymer insulation under combined AC and DC stress at elevated temperatures
… AC and DC voltages.;In thermoplastic materials, HDPE film and PP film were selected as the target material to study in this project. As the properties of HDPE are similar to those of XLPE, the data obtained from HDPE was regarded as a bench-mark. It was decided to use the thermo-electrical stress …
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Linking the Rheological Behavior to the Processing of Thermotropic Liquid Crystalline Polymers in the Super-cooled State
… and high density polyethylene (HDPE), using a single screw extruder. The blends were processed at a temperature of 260 oC which is 20 oC below Tm of the TLCP such that the thermal degradation of HDPE was minimized. Bottles were successfully produced from the blends containing 10, …
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Morphology and Mechanical Properties of High Density Polyethylene Exposed to Chlorinated Water
High density polyethylene (HDPE) is often used in applications that include both structural loads and oxidative environmental conditions. In this study, the effect of an oxidative environment on HDPE morphology and mechanical performance is evaluated. Extruded thin 70 micron HDPE samples …
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Studies of Environmental Stress Cracking of High Density Polyethylene Liner in Alkaline Surfactant Polymer Enhanced Oil Recovery Floods
… the increasing use of high density polyethylene (HDPE) pipes in EOR process, environmental stress cracking (ESC) poses a threat to the integrity of the pipe in ASP floods. In this research, the ESC behaviour of HDPE pipes was studied in ASP floods under conditions that simulated the EOR reality. …
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