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Chinese process safety management core elements and control measures

22.01.2017 | Aitao Zhou, Lingpeng Fan, Mingfei Ma, Bo Tao, Process Safety Progress, 2017

With the popularization and application of chemical process safety management (PSM) systems in the chemical industry, the use of such systems in China has become the focus of a large volume of research. In this article, 12 elements included in the current Chinese PSM system are divided into four ...


Effect of nitrogen doping on the catalytic activity of activated carbon and distribution of oxidation products in catalytic wet oxidation of phenol

21.01.2017 | Guo Yang, Honglin Chen, Hangdao Qin, Xiaoming Zhang, Yujun Feng, The Canadian Journal of Chemical Engineering, 2017

Abstract nitrogen‐containing functional groups were introduced into activated carbon (AC) by amination at high temperatures to investigate their effects on the catalytic activity and distribution of products in the catalytic wet air oxidation (CWAO) of phenol at 120 and 160 °C. The results ...


PEG‐based organic–inorganic hybrid coatings prepared by the sol–gel dip‐coating process for biomedical applications

21.01.2017 | Michelina Catauro, Ferdinando Papale, Giusi Piccirillo, Flavia Bollino, Polymer Engineering and Science, 2017

In the present work the application of functional coatings on metallic implants was proposed to delay implant failure by improving tissue tolerance and implant osseointegration. Three bioactive and biocompatible organic–inorganic hybrid nanocomposites, consisting of polyethylene glycol (PEG) ...


On detection of micro‐scale mass‐transport regimes in supercritical fluid extraction

20.01.2017 | Arthur A. Salamatin, Chemical Engineering & Technology, 2017

Abstract The problem of detecting supercritical fluid extraction regime on the particle scale level is discussed in the framework of a generalized multi‐parameter model, which includes shrinking‐core (SC) and broken‐intact‐cells (BIC) approaches as its limiting cases. The model explicitly ...


3‐D numerical simulations for polycondensation of poly(p‐phenylene terephthalamide) in twin screw extruder

19.01.2017 | Yuan Zong, Hao Tang, Ling Zhao, Polymer Engineering and Science, 2017

Poly(p‐phenylene terephthalamide) (PPTA) is a typical high‐performance fiber and usually synthesized by low temperature solution polycondensation in twin screw extruder. During the reactive extrusion, flow behavior, rheokinetics, and temperature are highly coupled, which makes it difficult to ...


Synergistic effects of silica nanoparticles and reactive compatibilizer on the compatibilization of polystyrene/polyamide 6 blends

19.01.2017 | Xianming Zhang, Menghan Sun, Wenxing Chen, Polymer Engineering and Science, 2017

This study examines the selective dispersion of nano‐SiO2 in polystyrene (PS) and polyamide 6 (PA6) blends. With the coupling assistance of 3‐methacryloylpropyl trimethoxysilane (MPS), nano‐SiO2 surfaces are grafted with PS chains of different molecular weights (SiO2–MPS–PS) or reactive random ...


PVP‐stabilized arsenic sulfide As4S4 nanocomposites probed with positron annihilation lifetime spectroscopy

19.01.2017 | O. Shpotyuk, A. Ingram, Y. Shpotyuk, Z. Bujňáková, P. Baláž, Polymer Engineering and Science, 2017

Atomic‐deficient nanostructurization in composites based on arsenic sulfide As4S4 polymorphs, such as (1) β‐As4S4, (2) realgar α‐As4S4, and (3) mixture of realgar, pararealgar, and intermediate χ‐phase subjected to high‐energy mechanochemical milling in polyvinylpyrrolidone (PVP) solution, are ...


Conductive inks based on methacrylate end‐capped poly(3,4‐ethylenedioxythiophene) for printed and flexible electronics

19.01.2017 | V. Sabatini, H. Farina, M.A. Ortenzi, Polymer Engineering and Science, 2017

A new synthesis of methacrylate end‐capped Poly(3,4‐ethylenedioxythiophene) (PEDOT) was performed: the polymer is soluble in common organic solvents, thus overcoming the well‐known technical problems related to the use of commercial PEDOT in different printing technologies, such as screen ...


Effect of organoclay incorporation and blending protocol on performance of PA6/ABS nanocomposites compatibilized with SANMA

19.01.2017 | L.D.C. Castro, A.D. Oliveira, M. Kersch, V. Altstädt, L.A. Pessan, Polymer Engineering and Science, 2017

The effect of organoclay incorporation and four different blending protocols on morphological, rheological, thermal, thermomechanical, and mechanical properties of PA6/ABS/SANMA/OMMT (55.0/35.0/5.0/5.0 wt%) nanocomposites was evaluated. As expected, even only with minor amounts of clay loading, ...


Rheological behavior of reaction mixtures during the graft copolymerization of cassava starch with acrylic acid

19.01.2017 | J.R. Witono, I.W. Noordergraaf, H.J. Heeres, L.P.B.M. Janssen, Polymer Engineering and Science, 2017

Literature data on the rheological behavior of a reaction mixture during the graft copolymerization of acrylic acid onto gelatinized starch are scarce. Yet, such information is important for process design. In this work, continuous torque recording was found to be a suitable method to monitor ...


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