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7.386 Aktuelle Fachpublikationen aus der Branche Verfahrenstechnik

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Salinity tolerance, adsorption, and emulsification properties of nonylphenol alkyl sulphonates derived from bi‐component linear alpha olefin

18.03.2017 | Ruixia Niu, Daqiang Wang, Biao Long, Hua Song, Chao Wang, Jingling Wang, Junyao He, The Canadian Journal of Chemical Engineering, 2017

Abstract A series of bi‐component nonylphenol alkyl sulphonate surfactants with different alkyl chains (C12/n‐NPAS, n = 8, 10, 14, 16) were synthesized through sulphonation‐alkylation‐neutralization, using mixture of linear alpha olefins as raw materials. The chemical structures were ...

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Blends of polylactic acid with thermoplastic copolyester elastomer: Effect of functionalized terpolymer type on reactive toughening

17.03.2017 | Vidhya Nagarajan, Amar K. Mohanty, Manjusri Misra, Polymer Engineering and Science, 2017

This study is an attempt to explore the effectiveness of thermoplastic copolyester elastomer (TPCE) as a toughening agent for improving the impact strength of PLA. Biobased Hytrel® thermoplastic copolyester of polyether glycol and polybutylene terephthalate was selected as the TPCE of choice for ...

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Experimental and numerical investigations of evaluation criteria and material parameters' coupling effect on polypropylene scratch

16.03.2017 | Jianwei Zhang, Han Jiang, Chengkai Jiang, Guozheng Kang, Qianhua Kan, Yonghua Li, Polymer Engineering and Science, 2017

Nine PP systems were synthesized to investigate the coupling effect of elastic modulus and yield strength on its scratch behavior. Adopting an integrated approach of scratch test and finite element simulation, the tangential force, the residual scratch depth and the groove shoulder area are ...

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Fatigue crack propagation in triblock copolymer toughened epoxy nanocomposites

16.03.2017 | Andreas Klingler, Bernd Wetzel, Polymer Engineering and Science, 2017

This study systematically investigates the influence of a Polymethylmethacrylate‐block‐Polybutylacrylate‐block‐Polymethylmethacrylate (PMMA‐b‐PBuA‐b‐PMMA) triblock copolymer (BCP) on the flexural properties, the static fracture toughness and especially the resistance to fatigue crack propagation ...

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Influence of the soft segment nature on the thermomechanical behavior of shape memory polyurethanes

16.03.2017 | Míriam Sáenz‐Pérez, José Manuel Laza, Jorge García‐Barrasa, José Luis Vilas, Luis Manuel León, Polymer Engineering and Science, 2017

Shape‐memory polyurethanes (SMPUs) represent a highly interesting class of materials due to their applications in different sectors such as biomedical, textile, and aerospace. Moreover, it is possible to synthesize a variety of polyurethanes with different molecular architectures just choosing ...

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Influence of aliphatic and aromatic isocyanates on the properties of polyether‐ester polyol based PU adhesive system

16.03.2017 | Manjeet Malik, Raminder Kaur, Polymer Engineering and Science, 2017

This study has been conducted with an emphasis to develop a biobased polyol from canola oil by transesterification reaction followed by epoxidation and ring opening reaction with an intention to insert hydroxyl group at unsaturation sites. The products obtained were characterized by nuclear ...

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Composites made from a soybean oil biopolyurethane and cellulose nanocrystals

16.03.2017 | Veronica L. Mucci, Aiga Ivdre, Juan M. Buffa, Ugis Cabulis, Pablo M. Stefani, Mirta I. Aranguren, Polymer Engineering and Science, 2017

Cellulose nanocrystals (CNC) obtained by acidic hydrolysis from microcrystalline cellulose were dispersed in a biopolyurethane matrix to prepare composite films. The polyurethane was prepared from a hydroxylated soybean oil (SO‐OH) and a polymeric diphenyldiisocyanate (pMDI), using a organotin ...

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Membrane‐Supported Multichannel Microfluidic Solvent Extraction System

15.03.2017 | Carolin Prechtl, Manfred Kraut, Matthias Franzreb, Gerald Brenner-Weiß, Roland Dittmeyer, Chemical Engineering & Technology, 2017

Abstract Although microfluidic solvent extraction (µSX) is a recent field in separation, its application is still limited to single‐channel microfluidic devices. However, the industrial application of microheat exchangers has already proven that parallelization of microchannels is an important ...

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Simulation and experimental research on coarse coal slime particles' separation in inclined tapered diameter separation bed

14.03.2017 | Cheng Sheng, Chenglong Duan, Yuemin Zhao, Chenyang Zhou, Yong Zhang, The Canadian Journal of Chemical Engineering, 2017

ABSTRACT A novel inclined tapered diameter separation bed (ITDSB) was designed for the beneficiation of coarse coal slime. Computational fluid dynamics (CFD) coupled with the discrete element method (DEM) was explored to study particle separation and the effect of underscreen water on ...

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Large Eddy Simulation Investigation of an Industrial Cyclone Separator Fitted with a Pressure Recovery Deswirler

14.03.2017 | Dzmitry Misiulia, Anders Gustav Andersson, Tord Staffan Lundström, Chemical Engineering & Technology, 2017

Abstract A cyclone fitted with a deswirler of original design has been investigated by means of large eddy simulation. Installation of the deswirler reduces significantly the positive static pressure near the wall as well as the negative static pressure in the central region. It also decreases ...

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