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Relevant bibliographies by topics / HDPE

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Academic literature on the topic 'HDPE'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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Journal articles on the topic "HDPE"

1

Yang, Hong Wei, Shi Liang Yang, Chao Wu, Yi Wei Fei, and Xian Yong Wei. "The Applications of Direct Fluorinated HDPE in Oil & Gas Storage and Transportation." Advanced Materials Research 328-330 (September 2011): 2436–39. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.2436.

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Characteristics of elemental fluorine and carbon-fluorine bonds were analyzed. The barrier and oil-resistance properties of direct fluorination of HDOE were unveiled from molecule structure. The HDPE surface fluorination results in the increase of surface energy, cross link to some extent and shrinkage of polymer free volume.The application of direct fluorination of HDPE in oil in oil ＆ gas storage and transportation fields were reviewed, including oil and gas pipe,plastic petrol-tanks and HDPE impermeable membrane applied in oil tank foundation. After direct fluorination processing, the anti-corrosion and the permeability to hydrocarbons of HDPE pipes are strengthened. With the development of technology, it will be the trend that the multi-layer fuel tanks replace the single layer fuel tanks. The HDPE is applied as the outermost layer of multi-layer structure to ensure the processing property and the impact resistance in low temperature.

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Mizera, Ales, Lovre Krstulovic-Opara, Nina Krempl, Michaela Karhankova, Miroslav Manas, Lubomir Sanek, Pavel Stoklasek, and Alen Grebo. "Dynamic Behavior of Thermally Affected Injection-Molded High-Density Polyethylene Parts Modified by Accelerated Electrons." Polymers 14, no. 22 (November 16, 2022): 4970. http://dx.doi.org/10.3390/polym14224970.

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Polyethylenes are the most widely used polymers and are gaining more and more interest due to their easy processability, relatively good mechanical properties and excellent chemical resistance. The disadvantage is their low temperature stability, which excludes particular high-density polyethylenes (HDPEs) for use in engineering applications where the temperature exceeds 100 °C for a long time. One of the possibilities of improving the temperature stability of HDPE is a modification by accelerated electrons when HDPE is cross-linked by this process and it is no longer possible to process it like a classic thermoplastic, e.g., by injection technology. The HDPE modified in this way was thermally stressed five times at temperatures of 110 and 160 °C, and then the dynamic tensile behavior was determined. The deformation and surface temperature of the specimens were recorded by a high-speed infrared camera. Furthermore, two thermal methods of specimen evaluation were used: differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The result of the measurement is that the modification of HDPE by accelerated electrons had a positive effect on the dynamic tensile behavior of these materials.

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Aontee, Ajcharaporn, and Wimonlak Sutapun. "A Study of Compatibilization Effect on Physical Properties of Poly (Butylene Succinate) and High Density Polyethylene Blend." Advanced Materials Research 699 (May 2013): 51–56. http://dx.doi.org/10.4028/www.scientific.net/amr.699.51.

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The aim of this research is to improve compatibility of PBS/HDPE blend using HDPE-g-MAH as a compatibilizer. The effect of HDPE-g-MAH content on mechanical and thermal properties, and degree of crystallinity of PBS/HDPE/HDPE-g-MAH blend was investigated. The blends were prepared at PBS/HDPE weight ratio of 30/70 and HDPE-g-MAH was used at a content of 2, 4, 6 and 8 part per hundred of PBS and HDPE. The results showed that yield strength and stress at break of PBS/HDPE/HDPE-g-MAH blends insignificantly increased with adding HDPE-g-MAH more than 2 phr. In addition, addition of HDPE-g-MAH to the binary blends led to an increase of elongation at break while Young’s modulus of blends exhibited an insignificant change. The addition of HDPE-g-MAH into PBS/HDPE blend did not affect both flexural modulus and flexural strength. In addition, unnotched impact strength of the blends greatly increased with increasing HDPE-g-MAH content and PBS/HDPE blend containing 8 phr of HDPE-g-MAH were not fractured within the instrument limit. For thermal properties, the presence of HDPE-g-MAH did not affect degradation temperature of PBS domain and HDPE matrix. HDPE-g-MAH of 8 phr markedly influenced the degree of crystallinity of the PBS and HDPE.

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Abeysinghe, Sonali, Chamila Gunasekara, Chaminda Bandara, Kate Nguyen, Ranjith Dissanayake, and Priyan Mendis. "Engineering Performance of Concrete Incorporated with Recycled High-Density Polyethylene (HDPE)—A Systematic Review." Polymers 13, no. 11 (June 6, 2021): 1885. http://dx.doi.org/10.3390/polym13111885.

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Incorporating recycled plastic waste in concrete manufacturing is one of the most ecologically and economically sustainable solutions for the rapid trends of annual plastic disposal and natural resource depletion worldwide. This paper comprehensively reviews the literature on engineering performance of recycled high-density polyethylene (HDPE) incorporated in concrete in the forms of aggregates or fiber or cementitious material. Optimum 28-days’ compressive and flexural strength of HDPE fine aggregate concrete is observed at HDPE-10 and splitting tensile strength at HDPE-5 whereas for HDPE coarse aggregate concrete, within the range of 10% to 15% of HDPE incorporation and at HDPE-15, respectively. Similarly, 28-days’ flexural and splitting tensile strength of HDPE fiber reinforced concrete is increased to an optimum of 4.9 MPa at HDPE-3 and 4.4 MPa at HDPE-3.5, respectively, and higher than the standard/plain concrete matrix (HDPE-0) in all HDPE inclusion levels. Hydrophobicity, smooth surface texture and non-reactivity of HDPE has resulted in weaker bonds between concrete matrix and HDPE and thereby reducing both mechanical and durability performances of HDPE concrete with the increase of HDPE. Overall, this is the first ever review to present and analyze the current state of the mechanical and durability performance of recycled HDPE as a sustainable construction material, hence, advancing the research into better performance and successful applications of HDPE concrete.

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Buakaew, Wanikorn, Ruksakulpiwat Yupaporn, Nitinat Suppakarn, and Wimonlak Sutapun. "Effect of Compatibilizers on Mechanical and Thermal Properties of High Density Polyethylene Filled with Bio-Filler from Eggshell." Advanced Materials Research 699 (May 2013): 57–62. http://dx.doi.org/10.4028/www.scientific.net/amr.699.57.

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In this research work, the effect of compatibilizers on mechanical and thermal properties of ESP/HDPE composites was investigated. High density polyethylene grafted with maleic anhydride (HDPE-g-MA) and ethylene propylene rubber grafted with maleic anhydride (EPR-g-MA) were used to compatibilize the ESP/HDPE composites. The ESP/HDPE composite with and without the compatibilizes was prepared at 20 wt.% ESP. The volume average particle size of ESP was 20.35 µm. The compatibilized HDPE composites were prepared at 2, 5, 8 and 10 wt.% of HDPE-g-MA and at 2, 5, 8 and 10 wt.% of EPR-g-MA, as well. It was found that ultimate stress, yield strength, and elongation at break of the ESP/HDPE composites prepared with HDPE-g-MA increased with increasing HDPE-g-MA content. In addition, Young’s modulus was maximum at 8 wt.% HDPE-g-MA. The composites filled with HDPE-g-MA had improved impact strength with increasing HDPE-g-MA content. On the other hand, the composites with EPR-g-MA showed a decrease in tensile properties and impact strength when increasing EPR-g-MA content. The impact strength of the HDPE composites compatibilized with EPR-g-MA decreased with increasing EPR-g-MA content. In addition, degree of crystallinity of the composites with EPR-g-MA was higher than that of the composite with HDPE-g-MA. Furthermore, compatibilizing ESP/HDPE composites with either HDPE-g-MA or EPR-g-MA did not influence HDPE and ESP decomposition temperatures, HDPE melting temperature and HDPE crystallization temperature.

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Aontee, Ajcharaporn, and Wimonlak Sutapun. "Effect of Blend Ratio on Phase Morphology and Mechanical Properties of High Density Polyethylene and Poly (Butylene Succinate) Blend." Advanced Materials Research 747 (August 2013): 555–59. http://dx.doi.org/10.4028/www.scientific.net/amr.747.555.

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In this work, the effect of HDPE and PBS blend ratio on mechanical properties and phase morphology of the blend was investigated. HDPE/PBS blends were prepared at HDPE content of 20, 30, and 40 wt.% via melt mixing process and then molded using an injection machine. HDPE/PBS blend was an immiscible blend with a type of dispersed in matrix morphology and coalescence phase morphology depending on HDPE content. The blend morphology of 20 wt.% HDPE/PBS blend was a type of spherical domain dispersed in the PBS matrix. As increase HDPE content, the dispersed HDPE particles became larger and the shape turned into worm-like and elongated structure. In addition, at 40 wt.% HDPE, coalescence phase morphology was obtained. It was found that the PBS blends containing 30-40 wt.% HDPE did not show yield point; they exhibited brittle failure behavior. For tensile properties, yield strength and stress at break of HDPE/PBS blend gradually decreased with increasing HDPE content. However, addition of HDPE into PBS matrix resulted in an increase of Youngs modulus of the PBS blend. Impact strength of the blends was much lower than that of neat PBS but the impact strength of the blend insignificant changed with 30-40 wt.% HDPE comparing to that with 20 wt.% HDPE.

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Suksiripattanapong, Cherdsak, Khanet Uraikhot, Sermsak Tiyasangthong, Nattiya Wonglakorn, Wisitsak Tabyang, Sajjakaj Jomnonkwao, and Chayakrit Phetchuay. "Performance of Asphalt Concrete Pavement Reinforced with High-Density Polyethylene Plastic Waste." Infrastructures 7, no. 5 (May 17, 2022): 72. http://dx.doi.org/10.3390/infrastructures7050072.

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This research investigates the possibility of using high-density polyethylene (HDPE) plastic waste to improve the properties of asphalt concrete pavement. HDPE plastic waste contents of 1, 3, 5, and 7% by aggregate weight were used. HDPE plastic waste=stabilized asphalt concrete pavement (HDPE-ACP) was evaluated by performance testing for stability, indirect tensile strength, resilient modulus (MR), and indirect tensile fatigue (ITF). In addition, microstructure, pavement age, and CO2 emissions savings analyses were conducted. The performance test results of the HDPE-ACP were better than those without HDPE plastic waste. The optimum HDPE plastic waste content was 5%, offering the maximum MR, ITF, and pavement age. Scanning electron microscope images showed that the excessive HDPE plastic waste content of 7% caused a surface rupture of the sample. Improvements in the pavement age of the HDPE-ACP samples were observed compared with the samples with no HDPE plastic waste. The highest pavement age of the HDPE-ACP sample was found at an HDPE plastic waste content of 5% by aggregate weight. The CO2 emissions savings of the sample was 67.85 kg CO2-e/m3 at the optimum HDPE plastic waste content.

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Tuan, Vu Manh, Da Woon Jeong, Ho Joon Yoon, SangYong Kang, Nguyen Vu Giang, Thai Hoang, Tran Ich Thinh, and Myung Yul Kim. "Using Rutile TiO2Nanoparticles Reinforcing High Density Polyethylene Resin." International Journal of Polymer Science 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/758351.

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The TiO2nanoparticles were used as a reinforcement to prepare nanocomposites with high density polyethylene (HDPE) by melt blending process. The original TiO2(ORT) was modified by 3-glycidoxypropyltrimethoxysilane (GPMS) to improve the dispersion into HDPE matrix. The FT-IR spectroscopy and FESEM micrographs of modified TiO2(GRT) demonstrated that GPMS successfully grafted with TiO2nanoparticles. The tensile test of HDPE/ORT and HDPE/GRT nanocomposites with various contents of dispersive particles indicated that the tensile strength and Young’s modulus of HDPE/GRT nanocomposites are superior to the values of original HDPE and HDPE/ORT nanocomposites. At 1 wt.% of GRT, the mechanical properties of nanocomposites were optimal. In DSC and TGA analyses, with the presence of GRT in the nanocomposites, the thermal stability significantly increased in comparison with pure HDPE and HDPE/ORT nanocomposites. The better dispersion of GRT in polymer matrix as shown in FESEM images demonstrated the higher mechanical properties of HDPE/GRT nanocomposites to HDPE/ORT nanocomposites.

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Fan, Wei Hua, Ren Jie Wang, Yu Kun Liu, Kai Guo, Jin Zhou Chen, and Jing Wu Wang. "Study on the MFR of HDPE/E-TMB Blends." Applied Mechanics and Materials 200 (October 2012): 411–15. http://dx.doi.org/10.4028/www.scientific.net/amm.200.411.

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HDPE/E-TMB and HDPE/E-SMB blends are prepared by thermal mechanical blending of toughening master batch (E-TMB) with HDPE and simple blending master batch (E-SMB) with HDPE, respectively. The difference of the melt flow rate between HDPE/E-TMB and HDPE/E-SMB blends was studied. The effects of the elastomer ratios and the ratios of matrix resin to elastomer of E-TMB, the types and the amount of anti-crosslinker of E-TMB, the elastomer content of HDPE/E-TMB blends on the melt flow rate (MFR) of HDPE/E-TMB blends were discussed.

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Blom, H. P., J. W. Teh, and A. Rudin. "iPP/HDPE blends: Interactions at lower HDPE contents." Journal of Applied Polymer Science 58, no. 6 (November 7, 1995): 995–1006. http://dx.doi.org/10.1002/app.1995.070580605.

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Dissertations / Theses on the topic "HDPE"

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Al-Ati, Tareq. "Oxygen permeation of virgin HDPE films versus recycled HDPE films /." Online version of thesis, 1994. http://hdl.handle.net/1850/11875.

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Sejas, Orellana Alain Osvaldo. "Internacionalización de productos de HDPE." Tesis, Universidad de Chile, 2011. http://www.repositorio.uchile.cl/handle/2250/111452.

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Magíster en Gestión para la Globalización
Como líder en la producción de tuberías plásticas en Chile, Vinilit S.A. desea evaluar una posible expansión de su línea de productos de tuberías de HDPE para la minería. En particular, la línea de productos para la minería, comprende tuberías de polietileno de alta densidad o HDPE, con diámetros que van desde 20 a 1200 mm de diámetro. El objetivo principal de esta Tesis, es determinar el mercado más apropiado para dicha expansión dentro de Sudamérica, junto con la mejor estrategia de entrada al mercado seleccionado. Para esto, se consideraron tanto los factores internos de la industria, como aquellos de nivel nacional y regional que puedan afectar el resultado de la iniciativa. Con este fin, lo primero fue seleccionar el país objetivo, evaluando variables macroeconómicas y características individuales de países de la región. Se concluye que Perú es la mejor alternativa por su menor inestabilidad, mayor tamaño de industria minera y no presencia de empresas pertenecientes al mismo consorcio de Vinilit comercializando estos productos. Luego, dada la naturaleza internacional del negocio, se realizó un análisis de los escenarios político, económico y social del país seleccionado, para determinar los efectos de estos en la inversión. En este sentido, la inestabilidad y baja transparencia del país, hacen necesario contar con apoyo de una empresa local. Tras la evaluación financiera del proyecto, se pudo apreciar que el costo de producción es el factor más crítico para la iniciativa, ya que esto, junto con la alta agresividad de la industria, hacen presente el riesgo de episodios de guerra de precios. Entonces, se hace muy importante diferenciar horizontalmente el producto dentro de sus competidores como un producto de alta calidad. Por otra parte, debido a la alta inversión requerida para el proyecto, se recomienda realizarla en dos etapas. Vale destacar, que la primera puede continuar sin necesidad de implementar la segunda, aunque con menores retornos esperados. Lo anterior, reduce el riesgo del proyecto, ya que se puede decidir si invertir en la segunda etapa a la vista de los resultados de la primera. Finalmente, en vista de los antecedentes estudiados, se puede concluir que el mercado se encuentra en expansión y que la inestabilidad de Perú es tal, que puede ser manejada por un socio local. Considerando además, flujos positivos y un plan de inversión divisible en dos etapas independientes, se recomienda proceder con la iniciativa.

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Ashraf, Ghulam S. K. "Valorisation of chemically contaminated HDPE." Thesis, Brunel University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367858.

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Mohammed, Tan I. "Properties of silane-crosslinked HDPE." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234047.

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Sejas, Orellana Alain Osvaldo. "Internacionalización de Productos de HDPE." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/102772.

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Soto, Juan José, and Danilo Sacandi. "Producción de geomembranas de HDPE." Bachelor's thesis, Universidad Nacional de Cuyo. Facultad de Ciencias Aplicadas a la Industria, 2017. http://bdigital.uncu.edu.ar/9328.

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El trabajo contiene el análisis y la evaluación técnico económica de la fabricación de geomembranas de polietileno de alta densidad a nivel industrial. El estudio realizado alcanza el nivel de prefactibilidad. El producto es un bien de consumo intermedio, utilizándoselo en un importante número de aplicaciones en obras de impermeabilización. El consumo nacional se encuentra cubierto en su mayor porcentaje por productos importados de países sudamericanos, siendo Chile, Colombia y Brasil los más representativos, mientras que en el ámbito local son pocas las empresas que desarrollan este tipo de producto, lideradas por IPESA S.A y Coverfilm S.A. La calidad del producto estará garantizada al trabajar bajo estándares establecidos en las normas GM 13, IRAM 78032 e IRAM 78028, siendo estos aspectos fundamentales para competir lealmente en el mercado y lograr la aceptación de los clientes. Los objetivos de este estudio son: realizar un estudio de pre-factibilidad técnica y económica de la instalación y puesta en marcha de una fábrica de producción de geomembranas de HDPE mediante la técnica de extrusión y conformado por burbuja; identificar y justificar la necesidad del uso de las geomembranas de HDPE en función de la variedad de aplicaciones que poseen; determinar la probable demanda futura de las geomembranas de HDPE en Argentina; analizar la oferta de las materias primas en el país y en el exterior, de manera de determinar la viabilidad de obtenerlas en el mercado interno o acudir a su importación; analizar y precisar la localización más conveniente para la instalación de la planta de producción; seleccionar la tecnología más conveniente en función de la capacidad de producción, costos de adquisición y características del producto a obtener; analizar costos de inversión, operación y fabricación de Geomembranas de HDPE; determinar competitividad en el mercado interno con el fin de sustituir importaciones; determinar un marco legal que permita tener un respaldo para la aplicación del proyecto; contribuir a la concientización en la preservación del medio ambiente y mejora en el manejo de los recursos naturales.
Fil: Soto, Juan José. Universidad Nacional de Cuyo. Facultad de Ciencias Aplicadas a la Industria.
Fil: Sacandi, Danilo. Universidad Nacional de Cuyo. Facultad de Ciencias Aplicadas a la Industria.

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Patzelt, Petr. "Creepová životnost vysokomolekulárního polyethylenu (HDPE)." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2019. http://www.nusl.cz/ntk/nusl-401905.

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The theoretical part of the thesis deals with the summary of material properties and testing parameters that influence SCG process. The experimental part is aimed on the comparison of different condition effects on the process of FNCT and PENT. Chosen temperatures for PENT were 70; 80 and 90 °C and the applied nominal stress 2,0; 2,4 and 2,8 MPa. In the case of FNCT the chosen temperatures were the same and the ligamental stress was 4 MPa for all used environments which were: water, Arkopal N110 solution and Dehyton PL solution. In addition, several experiments were measuered under applied nominal stresses 3; 4; 5; 6; 8 a 10 MPa and at 80 °C in Arkopal N110 solution. The morphology of crack surfaces was studied afterwards. The obtained data were used for evaluaion by a five parameter equation.

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Shelley, R. M. "Development of HDPE fuel tanks." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/11033.

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Plastics fuel tanks have been used successfully abroad ; metal counterparts are still predominant in this country plastics tanks have to satisfy stringent performance regulations : low temperature impact tests ; permeability ; and fire resistance. Blow moulded high density polyethylene (HDPE) fuel tanks have superior strength to mass ratio compared with metal equivalents (the density of steel is about 8000 kg/m3 compared with HDPE, which has a density of under 1000 kg/m3 ). HDPE will tend to drip in a fire situation, thus reducing explosion risk. HDPE is the chosen material because it possesses inherent properties suitable for the blow moulding process : it has a high viscosity at low stresses ; and is highly inert. Rotational moulded HDPE fuel tanks can also be considered. However, these are shown to have inferior properties when compared with blow moulded tanks ; attraction of rotational moulding is the cheapness of equipment. Petrol immersion was found to enhance impact properties of HDPE, although yield stresses were lowered slightly. The thickness distributions of blow moulded fuel tanks were found to vary ; this is because of the present difficulty of predicting parison behaviour with respect to time. Thickness is important because of impact strength and permeation considerations. Impact properties of fuel tanks were assessed ; peak force of impact was found to be heavily dependent on thickness (raised to the power 1.1) and temperature of mould in the blow moulding process (a low mould temperature led to inferior properties). Pinch-offs were found to be particularly detrimental to impact properties. Cooling behaviour was investigated. With the aid of a cooling model for blow mouldings, it was found that a warm mould (40·C) could be used with internal air circulation to obtain a cooling time the same as that with a cold mould and no air circulation. Thus optimising mechanical strength and maintaining economic viability. Welding of injection moulded fittings to the main blow moulded body of the fuel tank was found to be faulty, in all of the tanks examined ; many weld failures have been reported in use. This work determines optimum welding conditions for HDPE grades, these are Rigidex H060-45P and Lupolen 426l-A.

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Hegni, Tonje. "Validering av materialmodell for polypropylen (HDPE)." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18801.

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Denne rapporten tar for seg validering av en hyperelastisk – viscoplastisk material modell som tidligere har blitt implementert i elementmetode koden LS – Dyna. Materialet som er evaluert er polyetylen (HDPE) som er levert av det tyske firmaet SIMONA. Material parameterne som er satt inn i den konstitutive material modellen er funnet fra eksperimentell testing og kalibrering.Modellen er validert ved å sammenligne resultater av to veldefinerte eksperimentelle tester ved numeriske forutsigelser. Det har blitt utført tester på plate med hull. Platene har en mer kompleks geometri grunnet hullet i platen, og vil derfor gi mer komplekse spenning og tøynings tilstander. I tillegg har platene veldefinerte randbetingelser. Disse har en mer komplisert sammensetning av trykk og strekk og vil derfor være mer realistiske, da en virkelig komponent brukt i industrien vil bli utsatt for både trykk og strekk samt påført last av ulike hastigheter. De eksperimentelle og simulerte testene er sammenlignet og evaluert i valideringskapittelet. Modellen fanger opp de viktigste egenskapene observert i testene.

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Soliman, Ahmed M. "Re-rounding of Deflected HDPE Pipes." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1555005546013105.

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Books on the topic "HDPE"

1

Müller, Werner W. HDPE geomembranes in geotechnics. Berlin: Springer, 2007.

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Center, Turner-Fairbank Highway Research, ed. Stress cracking of HDPE geogrids. McLean, VA (6300 Georgetown Pike, McLean 22101-2296): U.S. Dept. of Transportation, Federal Highway Administration, Research and Development, Turner-Fairbank Highway Research Center, 1998.

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Victor, Elias, United States. Federal Highway Administration. Offices of Research and Development., and Turner-Fairbank Highway Research Center, eds. Stress cracking potential of HDPE geogrids. McLean, Va: U.S. Dept. of Transportion, Federal Highway Administration, Research and Development, 1998.

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Hsuan, Y. G. HDPE pipe: Recommended material specifications and design requirements. Washington, DC: National Academy Press, 1999.

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Koerner, Robert M. Stress cracking behavior of HDPE geomembranes and its prevention. Cincinnati, OH: Environmental Protection Agency, Risk Reduction Engineering Laboratory, 1993.

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Anderson, Keith W. ADS HDPE sewer pipe: I-90 Third Lake Washington Bridge maintenance facility. [Olympia, Wash.]: Washington State Dept. of Transportation, 1994.

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HDPF, ed. HDPF. Luzern: Quart Verlag, 2017.

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Green, Vivian. Monitoring in TG-HDP. [Chiang Mai]: Thai-German Highland Development Programme, 1991.

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United States. National Aeronautics and Space Administration., ed. Collaborative observations of HDE 332077. [Washington, DC: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. Collaborative observations of HDE 332077. [Washington, DC: National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "HDPE"

1

Gooch, Jan W. "HDPE." In Encyclopedic Dictionary of Polymers, 358. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5815.

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2

Bashford, David. "High Density Polyethylene (HDPE)." In Thermoplastics, 151–62. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1531-2_18.

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Morton-Jones, David H., and John W. Ellis. "Chemical Effluent Pipe in HDPE." In Polymer Products, 270–94. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4101-4_24.

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Ortiz, Angel, Cordélia M. F. Escanhoela, Michelle Gomes, Rene R. Oliveira, Francisco R. V. Díaz, and Esperidiana A. B. Moura. "Comparison between HDPE/Clay and HDPE/Piassava Fiber/Clay Treated by Electron-Beam Radiation." In Characterization of Minerals, Metals, and Materials 2013, 423–32. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118659045.ch49.

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Beerbaum, H., and W. Grellmann. "Bruchverhalten und Morphologie von HDPE-Werkstoffen." In Deformation und Bruchverhalten von Kunststoffen, 165–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-58766-5_13.

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Mohanty, S., and S. K. Nayak. "Rheological Characterization of Jute/HDPE Composites." In Advanced Materials and Processing IV, 279–82. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-466-9.279.

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Bouaziz, M. A., M. A. Guidara, M. Dallali, C. Schmitt, E. Haj Taieb, and Z. Azari. "Collapse Analysis of Longitudinally Cracked HDPE Pipes." In Design and Modeling of Mechanical Systems—III, 559–68. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_54.

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Zeinolebadi, Ahmad. "HDPE/PA Microfibrillar Composites Under Load-Cycling." In In-situ Small-Angle X-ray Scattering Investigation of Transient Nanostructure of Multi-phase Polymer Materials Under Mechanical Deformation, 83–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35413-7_6.

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Lee, Kyong-Hwan. "Thermal and Catalytic Degradation of Waste HDPE." In Feedstock Recycling and Pyrolysis of Waste Plastics, 129–60. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470021543.ch5.

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Piromanski, B., A. Chegenizadeh, N. Mashaan, and H. Nikraz. "HDPE Effect on Rutting Resistance of Binder." In Environmental Science and Engineering, 19–32. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94234-2_2.

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Conference papers on the topic "HDPE"

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McKelvey, David, Gary Menary, Peter Martin, and Shiyong Yan. "Thermoforming of HDPE." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY AND AWAM INTERNATIONAL CONFERENCE IN CIVIL ENGINEERING (IGNITE-AICCE’17): Sustainable Technology And Practice For Infrastructure and Community Resilience. Author(s), 2017. http://dx.doi.org/10.1063/1.5008069.

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Deepthi, M. V., P. Sampathkumaran, S. Seetharamu, S. Vynatheya, and R. R. N. Sailaja. "Development of HDPE/silicon nitride nanocomposites using HDPE-g-dibutyl maleate as compatibilizer." In 2012 IEEE 10th International Conference on the Properties and Applications of Dielectric Materials (ICPADM). IEEE, 2012. http://dx.doi.org/10.1109/icpadm.2012.6318959.

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Moita, Krista M., Marisa R. Boyce, Raffi J. Moughamian, and Marshall P. McLeod. "HDPE Electrofusion Fitting Installation Challenges." In Pipelines 2019. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482506.047.

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de Sequeira, Thais Pereira, Marysilvia Ferreira da Costa, and Celio Albano da Costa Neto. "Fatigue Precracking Methodology for HDPE." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24692.

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With the discovery of new reservoirs of petroleum and gas in ultra deep-water, the offshore exploration conditions are becoming tougher. Structural polymers applied in these conditions may be resisted because of the high offshore/subsea exigencies. As an example, the application of High Density Polyethylene (HDPE) as a thermoplastic jacket in subsea umbilicals which the existence of cracks can impair its performance. The long-term behavior of this material is not well established and it is not known how the fracture behavior and fatigue crack opening and growth are. This knowledge is quite important because it enables to determine safer conditions of operation. Therefore, the crack opening and growth of HDPE will be evaluated using Tension Tests and Dynamical-Mechanical Analysis (DMA) to find relevant mechanical parameters. In addition, a crack opening and growth methodology is formulated and used to calculate KIC value of HDPE considering the Linear Elastic Fracture Mechanics.

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Gunesegeran, Kishan, Rajkumar Annamalai, Muhammad Izzat Nor Ma'arof, Nurharniza Abdul Rahman, and Narendran Nadarajan. "High-density polyethylene (HDPE) tiles." In INTERNATIONAL CONFERENCE OF MATHEMATICS AND MATHEMATICS EDUCATION (I-CMME) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0110960.

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Musto, Thomas M., Glenn R. Frazee, and Michael P. H. Marohl. "Evaluation of ASME Class 3 HDPE Flanged Joints." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65990.

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In the design of piping systems, there are many options for transitioning between HDPE and metallic piping. One common option is the use of flanged joints. As a result of the visco-elastic nature of HDPE, the use of HDPE-to-metallic flanged joints requires special design considerations. When HDPE-to-metallic flanged joints are used in ASME Class 3 systems, the design is further complicated by the requirements provided in the ASME B&PV Code, Section III for flanged joint analysis. This paper examines the differences between HDPE piping flanged joints and metallic piping flanged joints, including consideration of industry guidance and available industry testing results. The paper provides a proposed methodology for evaluating ASME Class 3 HDPE-to-metallic flanged joints and HDPE-to-HDPE flanged joints, including the determination of required bolt torque values and the determination of the maximum internal pressure that the joint can resist without experiencing leakage.

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Shi, Jianfeng, Yuhua Cao, Di Jiao, Fa Yu, Yu Li, Jiayin Jiang, and Jinyang Zheng. "Comparison of Technical Standards Between Buried and Above Ground Polyethylene Pipe in the Application of Nuclear Power Plant." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84477.

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Abstract High-density polyethylene (HDPE) pipes have been used in essential service water (ESW) systems of nuclear power plants (NPP) for years. Some NPPs use buried HDPE pipes, while some others use above ground (gallery-installed) HDPE pipes, and this paper will discuss the differences in the design methods of these two construction methods in related technical standards. The design requirements and related load types of buried and above ground HDPE pipes in safety-related Class 3 service water or cooling water piping systems are compared. Pipeline models under different load types are introduced, including model assumption, material simplification, boundary conditions, interactions, etc. The differences in design loads are summarized, i.e., soil and surcharge load, negative internal pressure, flotation due to flood of buried HDPE pipe, and axial forces due to different supporting or fixing methods of above ground HDPE pipe. The design methods of buried and above ground HDPE pipeline are discussed and compared, i.e., design of mechanical load, temperature load, non-repeated anchor movements and seismic load. A case study is presented by using different technical standards of buried and above ground HDPE pipes. This work can provide a reference for the selection of HDPE pipes for safety-related Class 3 service water or cooling water piping systems in different NPPs.

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Kim, Young Seok, Jung Kwang Yoon, and Young Ho Kim. "Analysis of ASME Class 3 Buried HDPE Piping Systems Related to Code Case N-755-1." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97226.

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This paper proposes an analysis method for Section III, Division 1, Class 3 buried High Density polyethylene (HDPE) piping system in the nuclear power plants (NPP). Although HDPE pipe would yield at high temperature (limited to 140°F), it may be suitable for the areas prone to earthquakes; owing to its comparable ductility and flexibility. Thus, the buried HDPE piping may be applicable for the safety related Essential Service Water (ESW) system in the NPPs. Despite some limitations to buried HDPE piping, the piping could be designed based on ASME Code Case [1]. Generally, codes and standards including ASME Code Case [1] do not provide load combinations for the design of both buried steel piping and HDPE piping. Meanwhile, EPRI Report [4] provides load combinations including thermal expansion effects and seismic loads with detailed seismic criteria for polyethylene pipe. In this paper, load cases and load combinations for buried HDPE piping are suggested for implementation of reference documents and a buried HDPE piping system is analyzed referring to EPRI Report [4] to evaluate stress, force, and moment using a piping stress analysis program. Additionally, this paper will recommend the design procedure in accordance with ASME Code Case [1] using an example of buried HDPE piping analysis. An investigation of soil spring coefficients and the design considerations for hydrostatic tests are suggested for the enhanced analysis of buried HDPE piping.

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Pettigrew, I. G. "Advanced Ultrasonic Inspection of HDPE Welds." In Offshore Technology Conference-Asia. Offshore Technology Conference, 2014. http://dx.doi.org/10.4043/25065-ms.

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Pettigrew, I. G. "Advanced Ultrasonic Inspection of HDPE Welds." In Offshore Technology Conference-Asia. Offshore Technology Conference, 2014. http://dx.doi.org/10.2118/25065-ms.

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Reports on the topic "HDPE"

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Tkac, Peter, Vakhtang Makarashvili, Kevin Quigley, Sergey Chemerisov, George Vandegrift, and James Harvey. Irradiation of HDPE Bottles. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1157512.

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Willis, Elisha Cade. Thermal characterization of commercial HDPE and UHMWPE. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1469514.

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Phifer, Mark A. Scoping study. High density polyethylene (HDPE) in salstone service. Office of Scientific and Technical Information (OSTI), February 2005. http://dx.doi.org/10.2172/1237316.

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DeSmith, Matthew. Changes to the morphology and coefficient of thermal expansion in HDPE and UHMWPE following irradiation-based crosslinking. Office of Scientific and Technical Information (OSTI), September 2022. http://dx.doi.org/10.2172/1887095.

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Crawford, Susan L., Stephen E. Cumblidge, Steven R. Doctor, Thomas E. Hall, and Michael T. Anderson. Technical Letter Report - Preliminary Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/934406.

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(Archived), Irina Ward, and Farah Abu Saleh. PR-473-144506-R01 State of the Art Alternatives to Steel Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), December 2017. http://dx.doi.org/10.55274/r0011459.

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This report is a literature review of several non-metallic material systems often used as alter-natives to steel pipelines. The pipeline systems reviewed are high density polyethylene (HDPE), fiberglass reinforced plastic (FRP), flexible composite and thermoplastic liners. This report is not intended to be a detailed guide or design manual on the use of the referenced materials for pipeline applications, rather an overall evaluation on the current state of these systems. Significant industry literature and documentation already exists on the design, manufacturing, installation, and operation of these pipelines. This information currently resides in pipe manufacturer's manuals and various industry standards and guides published by organizations such as ASTM International (ASTM), American Petroleum Institute (API) American Water Works Association (AWWA), and International Organization for Standardization (ISO). In Canada, the oil and gas industry pipeline code, CSA Z662-2015 (Canadian Standards Association, 2015). Users should frequently consult the manufacturers of the pipe products in use or under consideration for use for clarification and suggestions regarding the best practices, considerations and applications of the materials in question. In addition, pipeline operators should be aware of the applicable regulatory requirements in the jurisdictions they are operating within.

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Ozkan, Istemi, and Qishi Chen. PR-244-094511-R01 Technology Readiness Evaluation of FAST-Pipe. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), October 2012. http://dx.doi.org/10.55274/r0010990.

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FAST Pipe is a new pipeline technology that was developed by ConocoPhillips Company (ConocoPhillips). It has been proposed as an alternative to high strength steel (grade X80 or higher) for high pressure gas transmission pipelines. FAST Pipe is manufactured by tightly wrapping multiple layers of dry fibreglass (or other fibres like carbon fibre) circumferentially around a conventional steel pipe and then covering the fibreglass with a thermoplastic jacket, such as a high density polyethylene (HDPE) coating. By utilizing the steel pipe to carry axial and bending loads and the fibreglass to augment the pressure carrying capacity of the steel pipe, FAST Pipe offers performance and cost advantages. ConocoPhillips has made a substantial effort to experimentally and analytically assess the feasibility and performance of FAST Pipe. PRCI has set up an industry Steering Committee (SC) to provide input and enable peer review to address the technical challenges as well as research and development objectives for obtaining regulatory approval for this new technology. The objective of this project was to assist PRCI's SC to achieve the goals of assessing technology readiness, identifying requirements for obtaining regulatory approval, and developing short and long term plans to meet these requirements.

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Niehof, J., Brian Larsen, and Denis Nadeau. dbprocessing HDEE project report. Office of Scientific and Technical Information (OSTI), February 2022. http://dx.doi.org/10.2172/1846898.

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Greer, J. T., and Chi-mon Hi. Hydroforming Design and Process Advisor (HDPA). Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/770421.

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Agudelo Urrego, Luz María, Chatuphat Savigamin, Devansh Gandhi, Ghadir Haikal, and Antonio Bobet. Assessment of Pipe Fill Heights. Purdue University Press, 2023. http://dx.doi.org/10.5703/1288284317612.

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The design of buried pipes, in terms of the allowable minimum and maximum cover heights, requires the use of both geotechnical and structural design procedures. The geotechnical procedure focuses on estimating the load on the pipe and the compressibility of the foundation soil. The focus of the structural design is choosing the correct cross-section details of the pipe under consideration. The uncertainties of the input parameters and installation procedures are significant. Because of that, the Load Resistance Factor Design (LRFD) method is considered to be suitable for the design of buried pipes. Furthermore, the interaction between the pipe structure and surrounding soil is better captured by implementing soil-structure interaction in a finite element numerical solution technique. The minimum cover height is highly dependent on the anticipated traffic load, whereas the maximum cover height is controlled by the section properties of the pipe and the installation type. The project focuses on the determination of the maximum cover heights for lock-seam CSP, HDPE, PVC, polypropylene, spiral bound steel, aluminum alloy, steel pipe lock seam and riveted, steel pipe and aluminum arch lock seam and riveted, non-reinforced concrete, ribbed and smooth wall polyethylene, smooth wall PVC, vitrified clay, structural plate steel or aluminum alloy pipe, and structural plate pipe arch steel, or aluminum alloy pipes. The calculations are done with the software CANDE, a 2D plane strain FEM code that is well-accepted for designing and analyzing buried pipes, that employs the LRFD method. Plane strain and beam elements are used for the soil and pipe, respectively, while interface elements are placed at the contact between the pipe and the surrounding soil. The Duncan-Selig model is employed for the soil, while the pipe is assumed to be elastic. Results of the numerical simulations for the maximum fill for each type and size of pipe are included in the form of tables and figures.

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