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Browsing by Author "Salehiyan, Reza"

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Characterization of polypropylene/polystyrene boehmite alumina nanocomposites: Impact of filler surface modification on the mechanical, thermal, and rheological properties

Author: Malwela, Thomas ; Khumalo, VM ; Salehiyan, Reza ; Ray, Suprakas S Date: Jul 2018 The influences of surface treatment and the concentration of boehmite alumina (BA) particles on polypropylene and polystyrene (PS) (80/20) blends produced via melt compounding were examined. The results show that p-toluene sulfonic acid-treated ... Read more
A comparative study of the effects of cone-plate and parallel-plate geometries on rheological properties under oscillatory shear flow

Author: Yong Song, H ; Salehiyan, Reza ; Li, X ; Hak Lee, S ; Hyun, K Date: Nov 2017 In this study, the effects of cone-plate (C/P) and parallel-plate (P/P) geometries were investigated on the rheological properties of various complex fluids, e.g. single-phase (polymer melts and solutions) and multiphase systems (polymer blend ... Read more
The distribution of nanoclay particles at the interface and their influence on the microstructure development and rheological properties of reactively processed biodegradable polylactide/poly(butylene succinate) blend nanocomposites

Author: Salehiyan, Reza ; Ray, Suprakas S ; Sinha Roy, Jayita ; Ojijo, Vincent O Date: Aug 2017 The present work investigates the distribution of nanoclay particles at the interface and their influence on the microstructure development and non-linear rheological properties of reactively processed biodegradable polylactide/poly(butylene ... Read more
Ductility improvements of PLA-based binary and ternary blends with controlled morphology using PBAT, PBSA, and nanoclay

Author: Nofar, M ; Salehiyan, Reza ; Ciftci, U ; Jalali, A ; Durmus, A Date: Feb 2020 In this study, binary and ternary immiscible blends of polylactide (PLA) with poly[(butylene adipate)-co-terephthalate] (PBAT) and poly[(butylene succinate)-co-adipate] (PBSA) were prepared through an injectionmolding (IM) process. Blend ... Read more
Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites

Author: Salehiyan, Reza ; Nofar, M ; Malkappa, Kuruma ; Ray, Suprakas S Date: Sep 2020 This article reports the effects of the characteristics and selective localization of nanofillers on the morphology development and rheological properties of melt-processed polylactide/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blend ... Read more
Effect of the mode of nanoclay inclusion on morphology development and rheological properties of nylon6/ethylevinyl-alcohol blend composites

Author: Bandyopadhyay, Jayita ; Ray, Suprakas S ; Salehiyan, Reza ; Ojijo, Vincent O ; Khoza, Mary N ; Wesley-Smith, James Date: Sep 2017 During melt extrusion of nanocomposites, nanoparticles can be incorporated either directly or through the masterbatch, which brings up a simple question of how the mode of nanoparticle inclusion affects the morphology and hence the rheological ... Read more
Influence of nanoclay localization on structure–property relationships of polylactide-based biodegradable blend nanocomposites

Author: Salehiyan, Reza ; Ray, Suprakas S Date: May 2018 This article highlights the recent research achievements regarding the development of nanoclay-containing biodegradable composites of polylactide (PLA)-based immiscible blends. The structure–property relationships of particular blends, namely, ... Read more
Influence of nanoparticles and their selective localization on the structure and properties of polylactide-based blend nanocomposites

Author: Nofar, M ; Salehiyan, Reza ; Ray, Suprakas S Date: Jun 2021 This article critically reviews the influence of different nanoparticle localization on the final structure-property relationships of polylactide (PLA)-based blend nanocomposites. The effects of kinetics and thermodynamic parameters on the ... Read more
Kinetically controlled localization of carbon nanotubes in polylactide/poly(vinylidenefluoride) blend nanocomposites and their influence on electromagnetic interference shielding, electrical conductivity, and rheological properties

Author: Salehiyan, Reza ; Nofar, M ; Ray, Suprakash S ; Ojijo, Vincent O Date: Jul 2019 This study illustrates the effects of the kinetic parameters [processing time, polyvinylidene fluoride (PVDF) viscosity, carbon nanotube (CNT) aspect ratio, and processing method] on the CNT migration and consequently the viscoelastic properties, ... Read more
Mechanism of thermal degradation-induced gel formation in polyamide 6/ethylene vinyl alcohol blend nanocomposites studied by time-resolved rheology and hyphenated thermogravimetric analyzer Fourier transform infrared spectroscopy mass spectroscopy: Synergistic role of nanoparticles and maleicanhydride-grafted polypropylene

Author: Salehiyan, Reza ; Bandyopadhyay, Jayita ; Ray, Suprakas S Date: May 2019 In this study, polyamide 6 (PA) is blended with ethylene vinyl alcohol (EVOH) to yield packaging materials with a balance of mechanical and gas barrier properties. However, the formation of gel-like structures in both polymers because of ... Read more
Nanostructured Immiscible Polymer Blends: Migration and Interface

Author: Ray, Suprakas S ; Salehiyan, Reza Date: Sep 2019 Nanostructured Immiscible Polymer Blends: Migration and Interface covers a wide range of nanoparticle types, emphasizing the mechanisms and parameters involved in the migration of nanofillers inside immiscible polymer blends. This book explores ... Read more
Processing of polymer blends, emphasizing: Melt compounding: influence of nanoparticles on blend morphology and rheology; reactive processing in ternary systems; morphology -property relationships; performance application challenges; and opportunities and future trends

Author: Salehiyan, Reza ; Ray, Suprakas S Date: Oct 2018 This chapter discusses the structure-properties of immiscible polymer blends, focusing on the effects of compatibilization. It has been discussed that the morphology of immiscible blends governs their final properties and thus end-use ... Read more
Processing-driven morphology development and crystallization behavior of immiscible polylactide/poly(vinylidene fluoride) blends

Author: Salehiyan, Reza ; Ray, Suprakas S ; Ojijo, Vincent O Date: Aug 2018 Processing‐driven morphology development and crystallization behavior of immiscible polymer blends are of high significance for the development of polymeric materials with controllable properties. This study correlates processing‐induced ... Read more
Rheology of poly (lactic acid)-based systems

Author: Nofar, M ; Salehiyan, Reza ; Ray, Suprakas S Date: Mar 2019 Being commercialized in 1992, poly (lactic acid) (PLA) has been considered for biomedical applications and as a reliable substitute for a wide range of commodity and engineering applications where noncompostable petroleum-based polymers are ... Read more
Rheology–microstructure relationships in melt-processed polylactide/poly(vinylidene fluoride) blends

Author: Salehiyan, Reza ; Ray, Suprakas S ; Stadler, FJ ; Ojijo, Vincent O Date: Dec 2018 In this study, small amplitude oscillatory shear tests are applied to investigate the rheological responses of polylactide/poly(vinylidene fluoride) (PLA/PVDF) blends and to correlate their viscoelastic properties with the morphological ... Read more
Rubber nanocomposites: Processing, structure–property relationships, applications, challenges, and future trends

Author: Salehiyan, Reza ; Ray, Suprakas S Date: Oct 2018 This chapter discusses the roles of different nanoparticle types such as clays, CNTs, and graphene-based materials in the rubber manufacturing processes. It is shown that nanoparticles not only reinforce rubber matrices, but they can also ... Read more
Shear-induced carbon nanotube migration and morphological development in polylactide/poly(vinylidene fluoride) blend nanocomposites and their impact on dielectric constants and rheological properties

Author: Salehiyan, Reza ; Nofar, M ; Makwakwa, Dimakatso M ; Ray, Suprakas S Date: Apr 2020 Polymer composites featuring high dielectric constants are known to be useful materials for the development of modern transducers, piezo- and thermal-sensors, and energy storage devices. In this study, blend nanocomposites of carbon nanotube ... Read more
Supramolecular poly(cyclotriphosphazene) functionalized graphene oxide/polypropylene composites with simultaneously improved thermal stability, flame retardancy, and viscoelastic properties

Author: Malkappa, Kuruma ; Salehiyan, Reza ; Ray, Suprakas S Date: Jul 2020 A novel crosslinkable supramolecular poly(cyclotriphosphazene) functionalized graphene oxide (FGO) is synthesized and melt-processed with polypropylene (PP), which results in a PP composite with simultaneously improved flame retardancy, ... Read more
Thermo-oxidative degradation study of melt-processed polyethylene and its blend with polyamide using time-resolved rheometry

Author: Salehiyan, Reza ; Malwela, Thomas ; Ray, Suprakas S Date: May 2017 Time-resolved mechanical spectroscopy (TRMS) was conducted to study the thermo-oxidative degradation of linear low density polyethylene (LLDPE) samples with different thermal histories and their blends with a polyamide (PA6) in the melt state. ... Read more
Tuning the conductivity of nanocomposites through nanoparticle migration and interface crossing in immiscible polymer blends: A review on fundamental understanding

Author: Salehiyan, Reza ; Ray, Suprakas S Date: Oct 2018 This article critically reviews the detailed fundamental understanding of the influence of conductive nanoparticle migration on the localization, and hence, electrical conductivity of immiscible polymer blend nanocomposites. Three types of ... Read more

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