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Fabrication of polyvinyl chloride based nanocomposite nanofiltration membrane: investigation of SDS/Al2O3 nanoparticle concentration and solvent ratio effects

21-Jul-2015 | E. Bagheripour, A. R. Moghadassi, S. M. Hosseini, Asia-Pacific Journal of Chemical Engineering, 2015

Abstract In the current research polyvinylchloride‐based nanocomposite nanofiltration membranes were prepared by using of sodium dodecyl sulfate (SDS) as additive, aluminum oxide (Al2O3) nanoparticles as inorganic filler and dimethylacetamide (DMAC)/tetrahydrofuran (THF) as solvents via phase ...

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Impact of electrospinning process parameters on the measured current and fiber diameter

17-Jul-2015 | Siavash Sarabi‐Mianeji, Jennifer Scott, Danny J.Y.S. Pagé, Polymer Engineering and Science, 2015

In this article, polycaprolactone (PCL) nanofibres were processed by electrospinning using a 3:1 ratio of tetrahydrofuran to methanol as solvent. The solvent choice was motivated by the possibility of greener alternatives to the halogenated compounds most often used for electrospinning. The ...

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Photoelectrocatalytic oxidation of methyl orange on TiO2 nanotubular anode using a flow‐cell

03-Jul-2015 | María José Martín de Vidales, Laura Mais, Cristina Sáez, Pablo Cañizares, Frank C. Walsh, Manuel A. Rodrigo, Christi ..., Chemical Engineering & Technology, 2015

Abstract Methyl orange from water was removed by photocatalytic anodic oxidation method using a titanium dioxide array surface. The coating was prepared by anodising a titanium plate using NH4F as electrolyte followed by heat treatment to render a photocatalytic surface under UV light. SEM ...

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Solvent extraction of phenol from aqueous solution with benzyl 2‐ethylhexyl sulfoxide as a novel extractant

03-Jul-2015 | Shixiong Wang, Deqiang Shi, Ruisi Yang, Yan Xu, Hong Guo, Xiangjun Yang, The Canadian Journal of Chemical Engineering, 2015

In this paper, we synthesized a novel structure of sulfoxide, benzyl 2‐ethylhexyl sulfoxide (BSO), and evaluated its performance for extracting phenol. The influences of several variables on phenol extraction were investigated, including equilibrium time, pH value, temperature, and salts in the ...

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Performances of poly(vinylidene fluoride‐co‐hexafluoropropylene) ultrafiltration membranes modified with poly(vinyl pyrrolidone)

30-Jun-2015 | P. Kanagaraj, A. Nagendran, D. Rana, T. Matsuura, S. Neelakandan, R. Revathi, N. Pandiyarajan, Polymer Engineering and Science, 2015

The structure and performance of modified poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVdF‐co‐HFP) ultra‐filtration membranes prepared from casting solutions with different concentrations of poly(vinyl pyrrolidone) (PVP) were investigated in this study. Membrane properties were studied in ...

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Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles

30-Jun-2015 | Marija Lučić Škorić, Nedeljko Milosavljević, Maja Radetić, Zoran Šaponjić, Marija Radoičić, Melina Kalagasidis Krušić, Polymer Engineering and Science, 2015

An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross‐linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized ...

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Development of an extrusion die with rollers for foaming polymers

22-Jun-2015 | Boris V. Kichatov, Alexey M. Korshunov, Polymer Engineering and Science, 2015

Ideas concerning the use of a flat slot die with rollers in the technology of extrusion foaming of polymers are developed. Based on the experimental study of low‐density polyethylene foaming with isobutane, dependences of the cell density and foam density on the polymer solution viscosity, gap ...

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Explicit Determinations of the Colebrook Equation for the Flow Friction Factor by Statistical Analysis

16-Jun-2015 | Amir Heydari, Elhameh Narimani, Fatemeh Pakniya, Chemical Engineering & Technology, 2015

Abstract The implicit Colebrook equation is considered as a fundamental equation for estimating the friction factor for turbulent flows in pipes. A large number of simple and accurate explicit approximations cover just a limited area of turbulent regime inside rough or smooth pipes. Here, ...

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Application of two analytical approaches for the solution of the population balance equations: Particle breakage process

10-Jun-2015 | A. Hasseine, S. Senouci, M. Attarakih, H.‐J. Bart, Chemical Engineering & Technology, 2015

Abstract The population balance equation (PBE) has been used to model variety of particulate systems. However, few cases of analytical solutions for the breakage process exist, where most of these solutions are for the batch stirred vessel. The analytical solutions of the PBE for particulate ...

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Enhancing allyl alcohol selectivity in the catalytic conversion of glycerol; influence of product distribution on the subsequent epoxidation step

10-Jun-2015 | Luke Harvey, Gizelle Sánchez, Eric M. Kennedy, Michael Stockenhuber, Asia-Pacific Journal of Chemical Engineering, 2015

Abstract Conversion of glycerol to allyl alcohol in a flow reactor and subsequent conversion to glycidol in a batch reactor are discussed in this paper. To increase reaction selectivity in the glycerol to allyl alcohol reaction, the catalyst was modified with alkali metal salts. The treatment ...

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