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Calculation of solubility parameter using perturbed-chain SAFT and cubic-plus-association equations of state / Zhi-Yong Zeng in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9663–9669 Titre : Calculation of solubility parameter using perturbed-chain SAFT and cubic-plus-association equations of state Type de document : texte imprimé Auteurs : Zhi-Yong Zeng, Auteur ; Yuan-Yuan Xu, Auteur ; Wang Li-jun, Auteur Année de publication : 2009 Article en page(s) : p. 9663–9669 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Solubility  Pparameter  Perturbed-Chain  Association  equations  of  state Résumé : Starting from the original definition of the solubility parameter, two models are developed to calculate the solubility parameter utilizing Perturbed-Chain SAFT and Cubic-Plus-Association equations of state, respectively. C3∼C12 n-alkanes and C1∼C5 1-alcohols,which represent the nonassociative and associative compounds, respectively, were investigated mainly over wide ranges of temperature and pressure. Solubility parameters calculated by two models are in good agreement with Hansen solubility parameters (HSP) and the results of Monte Carlo simulation for all of these selected molecules. It is also found that the solubility parameter increases monotonically with increasing pressure, and decreases with increasing temperature for all of these studied molecules. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800811f [article] Calculation of solubility parameter using perturbed-chain SAFT and cubic-plus-association equations of state [texte imprimé] / Zhi-Yong Zeng, Auteur ; Yuan-Yuan Xu, Auteur ; Wang Li-jun, Auteur . - 2009 . - p. 9663–9669. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9663–9669 Mots-clés : Solubility  Pparameter  Perturbed-Chain  Association  equations  of  state Résumé : Starting from the original definition of the solubility parameter, two models are developed to calculate the solubility parameter utilizing Perturbed-Chain SAFT and Cubic-Plus-Association equations of state, respectively. C3∼C12 n-alkanes and C1∼C5 1-alcohols,which represent the nonassociative and associative compounds, respectively, were investigated mainly over wide ranges of temperature and pressure. Solubility parameters calculated by two models are in good agreement with Hansen solubility parameters (HSP) and the results of Monte Carlo simulation for all of these selected molecules. It is also found that the solubility parameter increases monotonically with increasing pressure, and decreases with increasing temperature for all of these studied molecules. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800811f

Experimental research on tribological properties of Mn0.78Zn0.22Fe2O4 magnetic fluids / Wang Li-jun in Transactions of the ASME . Journal of tribology, Vol. 130 n°3 (Juillet 2008) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 130 n°3 (Juillet 2008) . - 5 p. Titre : Experimental research on tribological properties of Mn0.78Zn0.22Fe2O4 magnetic fluids Type de document : texte imprimé Auteurs : Wang Li-jun, Auteur ; Guo Chu-wen, Auteur ; Ryuichiro Yamane, Auteur Année de publication : 2008 Article en page(s) : 5 p. Note générale : Tribology Langues : Anglais (eng) Mots-clés : Tribology  Friction  Wear  Particulate  matter  Magnetic  fluids  Nanoparticles  Turbines  Lubricating  oils Résumé : The synthesis and application of nanometer-sized particles have received considerable attention in recent years because of their different physical and chemical properties from those of the bulk materials or individual molecules; however, few experimental investigations on the tribological properties of lubricating oils with and without nanoferromagnetic particles have been performed. This work investigates the tribological properties of Mn0.78Zn0.22Fe2O4 nanoferromagnetic as additive in 46# turbine oil using a four-ball friction and wear tester. It is shown that the 46# turbine oil containing Mn0.78Zn0.22Fe2O4 nanoparticles has much better friction reduction and antiwear abilities than the base oil. The 46# turbine oil doped with 6wt%Mn0.78Zn0.22Fe2O4 nanoparticles show the best tribological properties among the tested oil samples, and PB value is increased by 26%, and the decreasing percentage of wear scar diameter is 25.45% compared to base oil. En ligne : http://tribology.asmedigitalcollection.asme.org/article.aspx?articleid=1468074 [article] Experimental research on tribological properties of Mn0.78Zn0.22Fe2O4 magnetic fluids [texte imprimé] / Wang Li-jun, Auteur ; Guo Chu-wen, Auteur ; Ryuichiro Yamane, Auteur . - 2008 . - 5 p. Tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 130 n°3 (Juillet 2008) . - 5 p. Mots-clés : Tribology  Friction  Wear  Particulate  matter  Magnetic  fluids  Nanoparticles  Turbines  Lubricating  oils Résumé : The synthesis and application of nanometer-sized particles have received considerable attention in recent years because of their different physical and chemical properties from those of the bulk materials or individual molecules; however, few experimental investigations on the tribological properties of lubricating oils with and without nanoferromagnetic particles have been performed. This work investigates the tribological properties of Mn0.78Zn0.22Fe2O4 nanoferromagnetic as additive in 46# turbine oil using a four-ball friction and wear tester. It is shown that the 46# turbine oil containing Mn0.78Zn0.22Fe2O4 nanoparticles has much better friction reduction and antiwear abilities than the base oil. The 46# turbine oil doped with 6wt%Mn0.78Zn0.22Fe2O4 nanoparticles show the best tribological properties among the tested oil samples, and PB value is increased by 26%, and the decreasing percentage of wear scar diameter is 25.45% compared to base oil. En ligne : http://tribology.asmedigitalcollection.asme.org/article.aspx?articleid=1468074