| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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A., Ahmad Ramazani S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Falcaria vulgaris leaves extract as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid mediacitations
- 2021Thermal Degradation Kinetics and Modeling Study of Ultra High Molecular Weight Polyethylene (UHMWP)/Graphene Nanocompositecitations
- 2019Mechanical, rheological and oxygen barrier properties of ethylene vinyl acetate/diamond nanocomposites for packaging applicationscitations
- 2019In-situ polymerization of UHMWPE using bi-supported Ziegler-Natta catalyst of MoS2 Oxide/MgCl2 (Ethoxide type)/TiCl4/TiBA
- 2018In-situ preparation and characterization of ultra-high molecular weight polyethylene/diamond nanocomposites using Bi-supported Ziegler-Natta catalystcitations
- 2016Preparation and investigation of tribological properties of ultra-high molecular weight polyethylene (UHMWPE)/graphene oxidecitations
- 2015Effects of nano graphene oxide as support on the product properties and performance of Ziegler–Natta catalyst in production of UHMWPEcitations
- 2015LDPE/EVA/graphene nanocomposites with enhanced mechanical and gas permeability propertiescitations
- 2015Investigation of thermomechanical properties of UHMWPE/graphene oxide nanocomposites prepared by in situ Ziegler–Natta polymerizationcitations
Places of action
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article
Effects of nano graphene oxide as support on the product properties and performance of Ziegler–Natta catalyst in production of UHMWPE
Abstract
The synthesis of mono‐ and bi‐supported Ziegler–Natta catalysts using magnesium etoxide Mg(OEt)<sub>2</sub> and graphene oxide (GO) as catalyst support for production of Ultra High Molecular Weight Polyethylene (UHMWPE) is reported in this investigation. Nano‐graphene oxide was prepared by the modified Hummer's method and its structure was analyzed by XRD and FTIR indicating the presence of hydroxyl groups on graphene oxide and the formation of an exfoliated structure. The activity of TiCl<sub>4</sub>/Mg(OEt)2, TiCl<sub>4</sub>/Mg(OEt)<sub>2</sub>‐GO, and TiCl<sub>4</sub>/GO catalysts in terms of grams of PE produced per mmol of Ti per hour was experimentally obtained for catalysts with different ratios of co‐catalyst (triisobutylaluminium) to TiCl<sub>4</sub>. For all three series of catalysts, the activity curve showed an optimum point at a specific Al/Ti molar ratio. Catalyst activity was highest for TiCl<sub>4</sub>/Mg(OEt)<sub>2</sub> and lowest for TiCl<sub>4</sub>/GO. The characterization of UHMWPE products indicated that the viscosity average molecular weight (Mv) was highest for the polymer produced by TiCl<sub>4</sub>/Mg(OEt)<sub>2</sub> and lowest for the polymer produced by TiCl<sub>4</sub>/GO. Furthermore, thermogravimetric analysis (TGA), dynamic mechanical thermal analysis (DMTA), and mechanical tensile testing were conducted on the prepared polymers indicating that the polymer produced by TiCl<sub>4</sub>/GO had the highest thermal and mechanical properties, while these properties were at their minimum for polymers produced by TiCl<sub>4</sub>/Mg(OEt)<sub>2</sub>.