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3140 results

PROFILING PARTICLE SURFACE BY HANSEN PARAMETERS TO PREDICT PARTICLE-PARTICLE AND PARTICLE-LIQUID INTERACTION

Author
Lerche D., Rodriguez L., Sobisch T., Süß S., Segets D., Peukert W.
Year
2018
Source
XVI th International Conference on Surface Forces, Book of Abstracts
Language
English
Pages
36
  • 1694
  • Hansen Parameters
  • HSP
  • HDP
14 more
  • particles
  • pigments
  • Carbon Black
  • ZnO quantum dots and CNT
  • surface modified/decorated
  • LUMiSizer
  • LS
  • LUMiReader PSA
  • LRPSA
  • Suspensions and emulsions
  • Surface properties are crucial for dispersion process of powders and agglomerated/aggregated disperse phases
  • e.g. pigments
  • catalyzers
  • Hildebrandt solubility parameter
More details
Edition
Abstract O10
Location
Kazan, Russia, August 20-25, 2018
Internal reference
1694

Quantification of wastewater dewaterability for understanding sludge dewatering and fouling during membrane bioreactor operation

Author
Samuel James Skinner
Year
2018
Source
Thesis
Language
English
Pages
1-385
  • 1829
  • LF
  • LRX
  • LUMiFuge
14 more
  • LUMiReader X-Ray
  • LS
  • LUMiSizer
  • calcite and sewage sludge samples
  • settling velocity needs to be measured by an analytical centrifuge
  • Photo-analytical centrifuges
  • Transmission profiles
  • coagulated or flocculated mineral suspension
  • Transient centrifugal settling
  • Equilibrium centrifugal settling
  • calcium carbonate suspensions (Omyacarb 2)
  • Elastic Rebound Test
  • Multiple-speed equilibrium centrifugation test
  • Dewaterability parameter determination
More details
Edition
Submitted in total fulfilment of the requirement for the Degree of Doctor of Philosophy
Location
Particulate Fluids Processing Centre Department of Chemical and Biomolecular Engineering Melbourne School of Engineering The University of Melbourne, Australia
Internal reference
1829
Open publication

Quantifying Surface Properties of Silica Particles by Combining Hansen Parameters and Reichardt’s Dye Indicator Data

Author
Claudia Stauch, Sebastian Süß, Robert Luxenhofer, Bernard P. Binks, Doris Segets, and Karl Mandel
Year
2018
Source
Part. Part. Syst. Charact.
Language
English
Pages
1800328
  • AC measurements were carried out with a LUMiSizer LS 651
  • HSP
  • HDP
  • To obtain quantitative understanding of the effects of a chemisorbed organic modification on the surface of particles
5 more
  • the use of Reichardt’s dye (RD) and Hansen solubility parameter (HSP) is discussed
  • whereby the S should be understood in terms of “similarity” rather than solubility as dispersibility is in focus. Silica nanoparticles modified to different extents with a medium chain silane including completely hydrophilic and hydrophobic particles are chosen. During spray-drying such particles form fully redispersible micro-raspberry
  • Nanostructured micro-raspberry powders (0.5 wt%) of SiO2-NPs superstructures. After qualitative estimations of the particles’ polarity based on measuring both immersion time and ability of modified particles to stabilize oil–water emulsions
  • surface properties are quantified by HSP and RD
  • analytical centrifugation
More details
Edition
2018
Internal reference
1775
Open publication

Quantifying the contact electrification of aerosolized insulating particles

Author
Stefano Alois, Jonathan Merrison, Jens Jacob Iversen, Jörn Sesterhenn
Year
2018
Source
Powder Technology
Language
English
Pages
106-113
  • LUMiSizer
  • LS
  • 1862
  • Contact electrification
10 more
  • Insulating particles
  • Tribo-electrification
  • Electronegativity
  • Aerosol
  • particle size distribution of the particle samples
  • psd
  • psa
  • TiO2
  • titanium dioxide
  • non-spherical
More details
Edition
332
Internal reference
1862
Open publication

Rasche Identifizierung von Nanomaterialien mittels Zentrifugationsanalyse

Author
Christian Ullmann, Frank Babick, Michael Stintz, Dora Mehn, Douglas Gilliland, Wendel Wohlleben
Year
2018
Source
Jahrestreffen der ProcessNet-Fachgruppen Mehrphasenströmungen (MPH), Wärme- und Stoffübertragung (WSUE), Computional Fluid Dynamics (CFD), Hochtemperatur - technik (HTT), Abfallbehandlung und Wert- stoffrückgewinnung (AuW), Kristallisation (KRI) und Partikelmesstechnik (PMT)
Language
German
Pages
387-388
  • 2529
  • optischen Küvettenzentrifuge
  • LUMiSizer
  • LS
4 more
  • PSD
  • PSA
  • Partikelgrößenverteilung
  • Korngrößenverteilung
More details
Edition
Kurzfassungen
Location
Bremen, GER, 6. – 9. März 2018
Internal reference
2529
Open publication

Redox electrolytes for non-flow electrochemical energy storage

Author
Juhan Lee
Year
2018
Source
Dissertation
Language
English
Pages
1-207
  • LUMiSizer
  • LS
  • 1883
  • measure the effective particle size of the activated carbon
4 more
  • a sedimentation analysis technique
  • psa
  • psd
  • particle size distribution
More details
Location
Naturwissenschaftlich-Technische Fakultät der Universität des Saarlandes, Germany
Internal reference
1883
Open publication

Relationship between shear energy input and sedimentation properties of exopolysaccharide-producing Streptococcus thermophilus strains

Author
Florian Häffele, Susann Mende, Doris Jaros, Harald Rohm, Hermann Nirschl
Year
2018
Source
Separation and Purification Technology
Language
English
Pages
21-26
  • LUMiSizer
  • LS
  • Analytical centrifugation
  • Sedimentation behavior
4 more
  • Starter cultures
  • Exopolysaccharides
  • Shear forces
  • capsular exopolysaccharides (EPS)
More details
Edition
Volume 202
Internal reference
1583
Open publication

Reologické vlastnosti a stabilita kosmetických emulzí

Author
Petra Škramlíková
Year
2018
Source
Sborník Anotací
Language
Czech
Pages
148
  • LUMiSizer
  • LS
  • 2138
  • cosmetics
5 more
  • Tato práce pojednává o reologii a stabilitě kosmetických emulzí v závislosti na složení. Ke sledování vlastností byly použity následující metody: analýza obrazu
  • měření tokových vlastností
  • distribuce velikosti částic a přímého měření stability pomocí přístroje LUMiSizer bylo porovnáno 15 emulzí. cosmetic emulsions
  • stabilit
  • rheology
More details
Location
Studentská Vedecka Konference VSCHT Praha, Czech Republic, 22.11.2018
Internal reference
2138

Revealing the Physico-Chemical Basis of Organic Solid-Solid Wetting Deposition: Casimir-Like Forces, Hydrophobic Collapse, and the Role of the Zeta Potential

Author
Alexander Eberle,Thomas Markert, and Frank Trixler
Year
2018
Source
Journal of the American Chemical Society
Language
English
Pages
1327-1336
  • Particle size measurements
  • psa
  • psd
  • LUMiSizer
10 more
  • LS
  • 1863
  • Particle size distributions of γQAC - dispersions
  • cumulative distributions of the analyzed γQAC dispersions as a function of the particle size
  • Median particle size (equivalent diameter) of powdered γQAC
  • dispersed in different dispersing agents
  • solid-solid wetting • self-assembly • zeta potential • quinacridone • DLVO • fluctuation-induced forces • Casi-mir-like forces • dewetting in hydrophobic confinement
  • Supramolecular self-assembly at the solid-solid interface enables the deposition and monolayer formation of insoluble organic semiconductors under ambient conditions. The underlying process
  • termed as the Organic Solid-Solid Wetting Deposition (OSWD)
  • a highly oriented pyrolytic graphite (HOPG) as the substrate and dispersed crystalline particles of the organic semiconductor gamma quinacridone (γQAC) as the adsorptive
More details
Edition
140 (4)
Internal reference
1863
Open publication

Reversible Switching and Recycling of Adaptable Organic Microgel Catalysts (Microgelzymes) for Asymmetric Organocatalytic Desymmetrization

Author
Ruediger Borrmann, Volodymyr Palchyk, Andrij Pich, and Magnus Rueping
Year
2018
Source
ACS Catal.
Language
English
Pages
7991–7996
  • LUMiFuge
  • LF
  • LUMiSizer
  • LS
4 more
  • asymmetric desymmetrization; bifunctional sulfonamides; cinchona alkaloids; switchable colloidal catalyst; temperature-responsive microgel
  • sedimentation velocities
  • velocity
  • 1724
More details
Edition
8 (9)
Internal reference
1724
Open publication

Review of: Aggregation of silica nanoparticles directed by adsorption of lysozyme

Author
LUM
Year
2018
Source
Dispersion Letters Review
Language
English
Pages
1
  • 1796
  • silica nanoparticles; adsorption; globular protein; agglomeration; zeta potential; turbidity; cryoTEM; SAXS; analytical centrifugation; LUMiSizer
  • LS
  • SiO2
More details
Edition
R20
Internal reference
1796
Open publication

Rheological Characterization of Solids Phase in Biomass Processes of Disc-Stack Centrifuges

Author
Carl Häggmark, Staffan Königsson
Year
2018
Source
Chem. Eng. Technol.
Language
English
Pages
2289–2297
  • Angle of repose
  • Biomass processing
  • Centrifuge solids rheology
  • Solids phase viscosity
9 more
  • Squeeze flow
  • LUMiSizer
  • LS
  • biotech
  • Solids Particle Settling Velocity
  • Experimental Techniques for Rheological Characterization of Disc-Stack Centrifuge Biomass Solids
  • Alfa Laval Tumba AB
  • 1777
  • Tellerzentrifuge
More details
Edition
41, No. 12
Internal reference
1777
Open publication

Role of lipid phase composition and cell surface hydrophobicity in high pressure inactivation of Lactobacillus plantarum in emulsions

Author
Thomas Anton Kafka
Year
2018
Source
Dissertation.
Language
English
Pages
1-196
  • LUMiFuge
  • LS
  • LUMiSizer
  • 1692
12 more
  • Characterization of emulsion stability by multisample analytical centrifugation
  • Phase separation stability of all used (O/W)-emulsions
  • phase separation kinetics
  • In this thesis
  • both the role of fat and cell surface hydrophobicity (CSH) in High Hydrostatic Pressure (HHP)-mediated inactivation of spoilage-associated Lactobacillus (L.) plantarum and the role of wall teichoic acids (WTAs) in CSH were investigated. This chapter provides a comprehensive overview with basic knowledge
  • widely accepted principles
  • and latest scientific insights about the HHP inactivation of microorganisms
  • the use of emulsions as model system
  • the spoilage-associated genus Lactobacillus and CSH
  • biotech
  • food preservation
  • nutrition
More details
Location
Fakultät Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt der Technischen Universität München
Internal reference
1692
Open publication

Salt enhanced solvent relaxation and particle surface area determination via rapid spin-lattice NMR

Author
Laura N.Elliott, Richard A.Bourne, Ali Hassanpour, John L.Edwards, StephenSutcliffe, Timothy N.Hunter
Year
2018
Source
Powder Technology
Language
English
Pages
458-467
  • Settling measurements
  • LUMiSizer
  • LS
  • sedimentation rate of the dispersions
3 more
  • particle coagulation and changes in particle size distributions. Calcite and TiO2 dispersions
  • Suspension settling rates under centrifugation were also used to elucidate changes in particle aggregation for TiO2 and calcite
  • 1788
More details
Edition
333
Internal reference
1788
Open publication

Sedimentation analysis of magnetorheological fluids stabilized by amphiphilic compounds studied by analytical centrifuge

Author
J. Smilek, M. Lastuvkova, K. Vlachova, L. Oharek, A. Kargerova, O. Machacek and J. Roupec
Year
2018
Source
32 nd Conference of The European Colloid and Interface Society
Language
English
Pages
225
  • LUMiSizer
  • LS
  • magnetorheological (MR) fluids
  • suppression of iron particles sedimentation
2 more
  • possibility of MR fluids stabilization by addition of amphiphilic compounds (surface active agents
  • span 80
More details
Edition
Book of Abstracts PP3.10
Location
Ljubljana, Slovenia, 2 nd - 7 th September 2018
Internal reference
1714
Open publication

Separation behaviour of particles in biopolymer solutions in dependence on centrifugal acceleration: Investigation of slow structuring processes in formulations

Author
T.Sobisch, D.Lerche
Year
2018
Source
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Language
English
Pages
74-81
  • Dispersion structuring
  • Aging
  • Sedimentation velocity distribution
  • Apparent viscosity
7 more
  • Flocculation
  • Rheology
  • allows to determine apparent viscosity
  • characteristic for centrifugal separation process
  • LUMiSIzer
  • LS
  • Separation behaviour of 0.2% m/m silica dispersions as function of pectin concentration and RCA
More details
Edition
536
Internal reference
1499
Open publication

Separation membrane for secondary battery and electrochemical element to which it is applied

Author
ダ・キョン・ハン ソン・ヒョン・イ ドン・ウク・スン ジェ・アン・イ
Year
2018
Source
JP7055464B2
Language
Japanese
  • 2783
  • The present invention relates to a separation film for a secondary battery and an electrochemical element to which the separation film is applied
  • and more specifically
  • eliminates an increase in resistance after coating the separation film that occurs when a large amount of dispersion resin for dispersing an inorganic substance is used. Therefore
9 more
  • the present invention relates to a separation film for a secondary battery capable of reducing the amount of dispersion resin used and the amount of dispersant used
  • and an electrochemical element to which the separation film is applied. Rechargeable secondary batteries are electric vehicles (EVs)
  • hybrid electric vehicles (HEVs)
  • and plugs
  • which are presented as measures to solve air pollution in existing gasoline vehicles and diesel vehicles that use fossil fuels. It is attracting attention as a power source for devices that require high output and large capacity
  • including in-hybrid electric vehicles (Plug-In HEV). The particle settling speed was measured over time using a dispersion analyzer
  • LUMiSizer
  • LS
  • energy storage
More details
Edition
Patent
Internal reference
2783
Open publication

Separator fabrication method, separator fabricated thereby, and electrochemical element comprising same separator

Author
LG Electronics
Year
2018
Source
Justia Patents
Language
English
  • 2853
  • LG Electronics
  • LUMiSIzer
  • LS
9 more
  • Sedimentation rate (μm/s) A dispersion stability analyzer (Lumisizer LS651) was used to determine the sedimentation rate of the slurry particles in the slurry for forming a porous coating layer. A method for manufacturing a separator
  • including the steps of: (S1) preparing a dispersion containing inorganic particles dispersed in a first solvent and a first binder polymer dissolved in the first solvent; (S2) preparing a binder polymer solution containing a second binder polymer dissolved in a second solvent
  • and mixing the binder polymer solution with the dispersion so that a combined weight of the inorganic particles and the first binder polymer in the dispersion may be 1.5-8 times of a weight of the second binder polymer in the binder polymer solution; and (S3) applying the resultant mixture to at least one surface of a porous polymer substrate
  • followed by drying
  • to form a porous coating layer on the porous polymer substrate. Also
  • a separator obtained by the method and an electrochemical device including the same.The present disclosure relates to a separator that may be used for an electrochemical device
  • such as a lithium secondary battery
  • a method for manufacturing the same
  • and an electrochemical device including the same. energy storage
More details
Edition
Patent # 11,450,921
Internal reference
2853
Open publication

Shear treatment of starter culture medium improves separation behavior of Streptococcus thermophilus cells

Author
Doris Jaros, Susann Mende, Florian Häffele, Carsten Nachtigall, Hermann Nirschl, Harald Rohm
Year
2018
Source
Engineering in Life Sciences
Language
English
Pages
62–69
  • Sedimentation velocity distribution was measured with a LUMiSizer
  • LS
  • biotech
More details
Edition
18, Issue 1
Internal reference
1536
Open publication

Silica nanoparticle network induced by micro-phase separation considering surface wettability

Author
Chika Takai, Hidenori Nagamine, Masayoshi Fuji
Year
2018
Source
International Conference & Workshop Dispersion Analysis & Materials Testing 2018
Language
English
Pages
1-2
  • 1508
  • Micro-phase separation
  • Cellulose acetate
  • Nanoparticle network
4 more
  • Hansen parameter
  • HSP
  • particle dispersibility in the selected 26 organic solvents were examined from sedimentation profile obtained by LUMiSizer
  • LS
More details
Edition
Abstracts
Location
Berlin, Germany, 29-30 January 2018
Internal reference
1508
Open publication

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