Search Results - "Barzegari, Reza"
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The effect of injection molding conditions on the morphology of polymer structural foams
Published in Polymer engineering and science (01-05-2009)“…This study investigates the relations between processing conditions and morphology of injection molded structural foams. The samples were produced by adjusting…”
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Journal Article Conference Proceeding -
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In-situ visualization of polypropylene crystallization during extrusion
Published in Polymer testing (01-02-2014)“…Crystallization is a critical phenomenon that governs the morphology and the properties of a semi-crystalline polymer. In this study, a visualization chamber…”
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Crystallization of hard segment domains with the presence of butane for microcellular thermoplastic polyurethane foams
Published in Polymer (Guilford) (30-01-2014)“…This paper presents the effects of dissolved butane on the crystallization of hard segment (HS) and its effects on enhancement of cell nucleation to…”
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In situ fibrillation of CO2-philic polymers: Sustainable route to polymer foams in a continuous process
Published in Polymer (Guilford) (02-08-2013)“…In this study, in situ polymer–fibrillar blends of polypropylene (PP)/polytetrafluoroethylene (PTFE) are prepared. Dynamic oscillatory shear experiments…”
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Flexural behavior of asymmetric structural foams
Published in Journal of applied polymer science (05-09-2009)“…Asymmetric structural foams were prepared by compression molding to study the flexural properties of these sandwich structures with different layer thickness…”
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The effect of density profile on the flexural properties of structural foams
Published in Polymer engineering and science (01-09-2007)“…In this study, a comparison is made on the models available to predict the flexural modulus of structural polymer foams. Skin thickness and density profile in…”
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Mechanical and rheological behavior of highly filled polystyrene with lignin
Published in Polymer composites (01-03-2012)“…The mechanical, rheological, and morphological properties of polystyrene (PS)/lignin blends over a wide range of lignin content (0–80 wt%) have been studied in…”
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Journal Article -
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Geographical accessibility to the hemodialysis centers in Ardabil, Iran
Published in Journal of nephropharmacology (01-07-2022)“…Introduction: Hemodialysis patients should receive hemodialysis three times per week and 140- 160 times annually. The financial and temporal costs of…”
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Thermal Analysis of Highly Filled Composites of Polystyrene with Lignin
Published in Polymers & polymer composites (01-07-2013)“…This paper focuses on the thermal properties of polystyrene/lignin composites over a wide range of lignin content. Blending with and without a compatibilizer…”
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Prediction of the Shear Modulus of Polymer Structural Foams
Published in Journal of cellular plastics (01-11-2009)“…In this work, a model is proposed to predict the shear modulus of structural polymer foams. The calculations include morphological parameters such as skin…”
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Density Graded Linear Medium Density Polyethylene Foams Produced under a Temperature Gradient with Expancel Microbeads
Published in Cellular polymers (01-07-2011)“…In this work, density graded foams were produced using linear medium density polyethylene as the matrix and different grades of Expancel microbeads. Local…”
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Polyethylene Foams Produced under a Temperature Gradient with Expancel and Blends Thereof
Published in Cellular polymers (01-09-2010)“…Thermoplastic polymer foams can be produced using expandable beads like Expancel microbeads. In this work, density graded polyethylene foams were produced by…”
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Tensile Modulus Prediction of Structural Foams using Density Profiles
Published in Cellular polymers (01-09-2008)“…In this study, the tensile moduli of LDPE structural foams are related to their density profiles measured by X-ray densitometry. A review of the most important…”
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Ranking the Critical Success Factors for Hospital Information Systems Using a Fuzzy Analytical Hierarchy Process
Published in Computers, informatics, nursing (01-10-2023)“…The design, development, and maintenance of hospital information systems face major challenges, which ultimately cause failures of these information systems…”
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Compression Molding of Polyethylene Foams Under a Temperature Gradient: Morphology and Flexural Modulus
Published in Cellular polymers (01-07-2009)“…For any type of polymer foam, it is well known that careful control of the processing temperature has an important effect on final morphology. In this work,…”
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Conference Proceeding Journal Article -
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Characterization of hard-segment crystalline phase of poly(ether-block-amide) (PEBAX®) thermoplastic elastomers in the presence of supercritical CO2 and its impact on foams
Published in Polymer (Guilford) (07-04-2017)“…The effects of the saturation temperature and high-pressure dissolved CO2 on the crystallization behavior of polyether-block-amide (Pebax®) containing various…”
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Visualization of polypropylene's strain-induced crystallization under the influence of supercritical CO2 in extrusion
Published in Polymer (Guilford) (28-07-2017)“…We investigated polypropylene (PP)'s strain-induced crystallization behavior under the influence of supercritical carbon dioxide (CO2) in extrusion by using…”
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