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作者:... Nicolas Hengl , Frédéric Pignon , Geneviève Gésan-Guiziou
来源:[J].Journal of Membrane Science(IF 4.093), 2020, Vol.595
摘要:Abstract(#br)The influence of filtration membrane resistance on colloidal filter cake swelling after the filtration pressure release is discussed in frame of filtration-consolidation theory. It is argued that in the case of reversibly compressible filter cake, the solid pressure ...
作者:Frédéric Pignon , Joana L. M. Silveira ...
来源:[J].Polymers(IF 1.687), 2015, Vol.7 (5), pp.777-803DOAJ
摘要:This review covers the preparation, characterization, properties, and applications of methylcelluloses (MC). In particular, the influence of different chemical modifications of cellulose (under both heterogeneous and homogeneous conditions) is discussed in relation to the physica...
作者:Frédéric Pignon , Félix Armando Soltero Martínez
来源:[J].Polymers(IF 1.687), 2016, Vol.8 (8)DOAJ
摘要:Molecular weight, stiffness, temperature, and polymer and ionic concentrations are known to widely influence the viscosity of polymer solutions. Additionally, polymer molecular weight—which is related to its dimensions in solution—is one of its most important characteristics...
作者:Frédéric Pignon , Joana L. M. Silveira ...
来源:[J].Polymers(IF 1.687), 2014, Vol.6 (12), pp.2961-2973DOAJ
摘要:The interfacial interactions of four methylcelluloses having the same average degree of substitution and distribution of methyl groups, but different molar masses, are studied at ambient temperature and at very low polymer concentrations. Firstly, the surface tension σ at th...
作者:... Christine Lancelon-Pin , Lewis Sharpnack , Frédéric Pignon
来源:[J].Colloids and Surfaces A: Physicochemical and Engineering Aspects(IF 2.108), 2020, Vol.584Elsevier
摘要:Abstract(#br)The structural organization of the concentration polarization layer (CPL) during the cross-flow membrane separation process of anisometric aqueous suspensions of colloidal cellulose nanocrystals and beidellite clay particles has been characterized by in situ tim...
作者:Frédéric Pignon , Marianne Impéror-Clerc
来源:[J].Ultrasonics - Sonochemistry(IF 3.516), 2018, Vol.41, pp.327-336Elsevier
摘要:Abstract(#br)In this paper, the disintegration of starch (waxy and standard starch) granules into nanosized particles under the sole effect of high power ultrasonication treatment in water/isopropanol is investigated, by using wide methods of analysis. The present work aims at a ...
作者:Frédéric Pignon , Albert Magnin ...
来源:[J].Rheologica Acta(IF 1.626), 2009, Vol.48 (5), pp.563-578Springer
摘要:Abstract(#br)The structure and orientation dynamics of sepiolite clay fibers about 1,000 nm long and 10 nm thick, suspended in an aqueous poly(ehtylene oxide) matrix of 10 5 g/mol molecular mass, have been studied under control extensional and shear flow. A new extensional f...
作者:Fabrice Saint-Michel , Frédéric Pignon , Albert Magnin
来源:[J].Rheologica Acta(IF 1.626), 2005, Vol.44 (6), pp.644-653Springer
摘要:Abstract(#br)This article considers the rheometric properties of mixtures containing a micron-sized mineral filler of calcium carbonate (CaCO 3 ) in a polymer matrix gelled by adding colloidal silica (CS). These mixtures, consisting of a polymer matrix (polyols, catalysts, surfac...
作者:Frédéric Pignon , Emir Tsabet
来源:[J].Rheologica Acta(IF 1.626), 2008, Vol.47 (1), pp.63-73Springer
摘要:Abstract(#br)We study the transient response to simple shear of aqueous dispersions of Laponite clay particles and poly(ethylene oxide) at concentrations for which shear induces structure in the form of a network of polymer–clay bonds. We examine the effects of shear on the ...
作者:Frédéric Pignon , Bruno Jean
来源:[J].Cellulose(IF 3.476), 2019, Vol.26 (13-14), pp.7619-7634Springer
摘要:Abstract(#br)The effect of sonication on a highly concentrated commercial suspension of cellulose nanocrystals (CNCs) and the resulting rheological properties have been investigated. Rheology and structural analysis techniques (atomic force microscopy, small-angle X-ray scat...

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