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Showing 1 to 20 of 54 for “"High Density Polyethylene (HDPE)"”.

  1. Market development for recycled high density polyethylene (HDPE)

    Siskind, EstherMassachusetts Institute of Technology1990

    Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1990.

    mit Repository record

  2. Thermochemical conversion of high-density polyethylene (HDPE) to value-added products using cobalt-based catalysts

    Kalia, RadhikaSchulich School of Engineering2025

    … concerns for the environment 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 …

    calgary Repository record

  3. Quantitative Analysis of Antioxidants from High Density Polyethylene (HDPE) by off-line Supercritical Fluid Extraction Coupled High Performance Liquid Chromatography

    Pinto, Angela MarieVirginia Tech1997

    … extraction of the antioxidant 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 ® …

    vt Repository record

  4. High density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for solar disinfection of drinking water in northern region, Ghana

    Yazdani, ImanMassachusetts Institute of Technology2007

    … is to investigate the technical 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 …

    mit Repository record

  5. Multimodal Polyethylene-Graphene Nanocomposite via Melt Extrusion

    Ahmad, Ibrahim Ali Ibrahim AliUniversity of Cambridge2019

    The production of an innovative, high-performance graphene-based multimodal-high-density polyethylene (HDPE)polymer nanocomposite using cost-effective techniques was pursued in this study. This study reports on the reinforcement of high molecular weight multimodal-high-density polyethylene HDPE by …

    cambridge Repository record

  6. The use of thin polymeric coatings to prevent fretting corrosion and metallic contact in steel-on-steel systems

    Day, Kent AllenVirginia Polytechnic Institute and State University1986

    … chloride (PVDC), polyvinyl chloride (PVC), low-density polyethylene (LOPE), high-density polyethylene (HDPE), polysulfone (PSO) and polystyrene (PS). These polymers were applied as thin films to a steel disk which was in turn fretted by a normally-loaded steel sphere. The experimental …

    vt Repository record

  7. THE EFFECTS OF RECYCLED WASTE ON CONCRETE MIXTURE PROPERTIES

    Hadbawi, Noral2022

    … concrete mix design. Three types of plastics, High-Density Polyethylene -HDPE, Ultra-High Molecular Weight Polyethylene -UHMWPE, Polyethylene Terephthalate -PET, and a Grind/ Crumb rubber were evaluated to be used in a concrete mixture to determine the physical and mechanical properties. There …

    kennesaw Repository record

  8. Predictive Modeling of Metal-Catalyzed Polyolefin Processes

    Khare, Neeraj PrasadVirginia Tech2003

    … the Ziegler-Natta polymerization to produce high-density polyethylene (HDPE) and polypropylene (PP). It also provides a model for the solution polymerization of ethylene using a metallocene catalyst. Existing modeling efforts do not include physical properties or phase equilibrium in their …

    vt Repository record

  9. Processing and properties of composites based on high density polyethylene and thermotropic liquid crystalline polymers

    Wesselingh, MarjanVirginia Tech1995

    … the processing and properties of composites of high density polyethylene (HDPE) and thermotropic liquid crystalline polymers (TLCPs). Strands of HDPE reinforced with TLCPs were generated using a novel dual extruder mixing technique. It was shown that the strength and modulus of the strands …

    vt Repository record

  10. Síntese e caracterização de filmes de polietileno/poli(álcool vinílico) contendo nanopartículas de negro de fumo e sílica

    Vieira, Pedro Henrique da CostaUniversidade Federal do Rio de Janeiro2016

    High density polyethylene (HDPE) is widely used in the production of automobile fuel tanks due to low density and processability, despite being permeable to organic solvents. In order to improve their barrier properties, the aim of this work was study the synthesis and characterization of HDPE and …

    brazil-uerj Repository record

  11. Advancing sustainability in additive manufacturing: material formulation and process development for recycled PET and PET/HDPE blend

    Bozorgnia Tabary, Seyed Amir AliUniversity of Ontario Institute of Technology2025

    … accumulation of plastic waste, particularly polyethylene terephthalate (PET), presents a major environmental challenge due to inefficient recycling and sorting processes. The high-density polyethylene (HDPE) contamination in recycled PET (r-PET) in waste stream further complicates its …

    uoit Repository record

  12. Development of Commercial Applications for Recycled Plastics Using Finite Element Analysis

    Narasimhamurthy, Nanjunda2005

    … plastics blends are: pop bottles made of PolyethyleneTeraphthalate (PET), milk jugs made of High-Density Polyethylene (HDPE), Vinyl seats made of Poly Vinyl Chloride (PVC) and small amount of Polypropylene (PP) and Urethane, electronic scrap made of engineering resins like …

    byu Repository record

  13. Investigating sources of microplastics and effects of plastic pollution on biofilm function in the Huron River

    Baker, Sadie2024

    … if plastic surfaces alter biofilm function. High-density polyethylene (HDPE) had the greatest negative impact on metabolic diversity of the biofilms, while polypropylene (PP) had the greatest negative impact on metabolic response. The results of this experiment suggest that plastic substratum …

    emich Repository record

  14. The Effect of Matrix Molecular Weight on the Dispersion of Nanoclay in Unmodified High Density Polyethylene

    Chu, DavidVirginia Tech2006

    … montmorillonite (MMT) in non polar, unmodified high density polyethylene (HDPE) was examined. Polymer layered silicate (PLS) nanocomposites were compounded using three unmodified HDPE matrices of differing molecular weight and an organically modified MMT in concentrations ranging from 2 wt% to 8 …

    vt Repository record

  15. Polyolefin plastomers in composites for flooring applications

    Bani-Hani, Manar1998

    … a significant amount of post-consumer polyethylene(PC-PE) while maintaining adequate physical properties. Two types of PC-PE are tested in this research work: the first one is a linear low density polyethylene (LLDPE), and the second is a high density polyethylene (HDPE). The DSC …

    concordia Repository record

  16. Degradação termocatalítica de misturas de poliolefinas e biomassa

    Oliveira, Raiana Tomazini deUniversidade Federal do Rio de Janeiro2016

    … the valorization of these waste, as it allows high yields of fuels and raw materials to be obtained for the benefit of the petrochemical industry.Pyrolysis of waste polypropylene (PP) and waste high density polyethylene (HDPE) were carried out in a fixed bed reactor in order to evaluate the …

    brazil-uerj Repository record

  17. Controlling Light-Induced Flavors in 2% Milk

    Amin, Kemia NicoleVirginia Tech2016

    … efficacy of light protecting additives (LPA) in high-density polyethylene (HDPE) was studied for protection against light-induced oxidation of high-temperature short-time (HTST) 2% milk under fluorescent (1882±993 lux) and LED light (915±150 lux). Milk quality measures included oxidation level, …

    vt Repository record

  18. Effect of shelf-life and light exposure on acetaldehyde concentration in milk packaged in HDPE and PETE bottles

    van Aardt, MarleenVirginia Tech2000

    … the product. Whole milk was 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 …

    vt Repository record

  19. Investigation into the mechanical response and microstructure evolution of high density polyethylene, under conditions applicable to the injection stretch blow moulding process

    McKelvey, DavidQueen's University Belfast2018

    High density polyethylene (HDPE) is extensively used for a variety of containers but these containers are currently made by extrusion blow moulding (EBM) and not injection stretch blow moulding (ISBM), on a large-scale production basis. Therefore, there is currently a gap in the market for …

    qu-belfast Repository record

  20. An Investigation of the Plastic Pallet Industry in the United States in 2018

    Bugledits, DorinaVirginia Tech2020

    … manufactured by the respondents were made with high pressure injection molding (63%) using high density polyethylene (HDPE) resin (68%). Close to 50% of the pallets had reinforcement beams and 12% had fiberglass reinforcement. Although most plastic pallets were manufactured using virgin resin, …

    vt Repository record

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