Content
Applied Rheology Editors: Publishing Services: Website: Email:
Peter Fischer & Martin Kröger Kerschensteiner Verlag http://www.appliedrheology.org
[email protected]
Editorial
229
Conferences & Workshops
230
News
231
Book Review Polymer Physics – Applications to Molecular Association and Thermoreversible Gelation Fumohiko Tanaka
235
Papers Interpretation of T-Bar Tool Measurements for Yield Stress Materials V.J. Anderson and G.H. Meeten Design of a New Spoon-thick Consistency Oral Nutrition Supplement Using Rheological Similarity with a Swallow Barium Test Feed Edmundo Brito-de la Fuente, N. Staudinger-Prevost, L.A. Quinchia, C. Valencia, P. Partal, J.M. Franco, Crispulo Gallegos
55370
53365
Rheology of Titania Pigment Slurry Saeed Farrokhpay
55285
Storage Instability of Fly Ash Filled Natural Rubber Compounds Thanunya Saowapark, Pongdhorn Sae-oui, Narongrit Sombatsompop, Chakrit Sirisinha
55414
Conference Report I The International Conference on Bio-Based Polymers and Composites 2012 (BiCoPo 2012) Balázs Imre
268
Conference Report II Flocculated Suspensions: From Microstructure to Macroscopic Behavior Paul Acker, Xavier Chateau, Guillaume Ovarlez, Fabrice Toussaint
269
Conference Report III 13th International Conference on Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2012) H. Ibrahim Unal and Ozlem Erol
272
Conference Report IV International Workshop on Nonequilibrium Thermodynamics (IWNET 2012) and 3rd Lars Onsager Symposium David Taj and Thierry Savin
274
Schools & User Group Meetings
277
Jobs
277
Buyers’ Guide
279
Applied Rheology Volume 22 · Issue 5
227
Editorial
Flow of Multiphase Systems. Peter Fischer and Martin Kröger This issue of Applied Rheology features four scientific papers, four conference reports and one book review. In the first paper, V.J. Anderson and G.H. Meeten from Schlumberger Cambridge Research in Cambridge review the “Interpretation of T-Bar Tool Measurements for Yield Stress Materials” [1]. The authors discuss the data recovery and treatment for yielding materials, a problem widely discussed over the years for a number of rheometric flow conditions [2 – 4]. In the contribution by Edmundo Brito-de la Fuente, N. Staudinger-Prevost, L.A. Quinchia, C. Valencia, P. Partal, J.M. Franco, and Crispulo Gallegos the swallowing of food by patients suffering from aspiration pneumonia is addressed [5]. The authors establish a correlation between the ready-to-use food supplements and model fluids containing Barium as contrast enhancer towards a detailed understanding of the swallowing problems in dysphagic patients. Similar food model systems addressing textural properties were recently discussed by Koliandris et al. [6]. In “Rheology of Titania Pigment Slurry” Saeed Farrokhpay from the University of South Australia investigates the influence of different additives such as polyacrylic acid and modified polyacrylamides of the flow properties of highly concentrated suspensions [7] also seen for gypsum and silica slurries [8, 9]. The final contribution by Thanunya Saowapark, Pongdhorn Sae-oui, Narongrit Sombatsompop, and Chakrit Sirisinha analyses the influence of fly ashes as reinforcing fillers in polymeric systems [10]. Depending of the surface properties of the filler, the viscoelastic properties of the melt can be enhances or suffer from chemical poisoning as recently reported by Meng et al. and Kirchberg et al. [11, 12]. The conference reports summarize the “The International Conference on Bio-Based Polymers and Composites 2012 (Siófok, Hungary)”, the workshop on “Flocculated Suspensions: From Microstructure to Macroscopic Behavior (Champs sur Marne, France)”, the “13th International Conference on Electrorheological Fluids and Magnetorheological Suspensions (Ankara, Turkey)”, and the “International Workshop on Nonequilibrium Thermodynamics and 3rd Lars Onsager Symposium (Røros, Norway)”. The book review is on “Polymer Physics – Applications to Molecular Association and Thermoreversible Gelation” by Fumohiko Tanaka.
REFERENCES [1]
Anderson VJ, Meeten GH: Interpretation of T-bar tool measurements for yield stress materials, Appl. Rheol. 22 (2012) 55370 [2] Kelessidis VC, Hatzistamou V, Maglione R: Wall slip phenomenon assessment of yield stress pseudoplastic fluids in Couette geometry, Appl. Rheol. 20 (2010) 52656 [3] Barnes H: The 'Yield stress myth?' paper – 21 years on, Appl. Rheol. 17 (2007) 43110 [4] Reeve P: Yield Stress: a predictive tool for determining suspending properties? Appl. Rheol. 20 (2010) 33009 [5] Brito-de la Fuente E, Staudinger-Prevost N, Quinchia LA, Valencia C, Partal P, Franco JM, Gallegos C: Design of a new spoon-thick consistency oral nutrition supplement using rheological similarity with a swallow barium test feed, Appl. Rheol. 22 (2012) 53365 [6] Koliandris A-L, Rondeau E, Hewson L, Hort J, Taylor AJ, Cooper-White J, Wolf B: Food grade Boger fluids for sensory studies Appl. Rheol. 21 (2011) 13777 [7] Farrokhpay S: Rheology of titania pigment slurry, Appl. Rheol. 22 (2012) 55285 [8] Sinha-Ray S, Srikar R, Lee CC, Li A, Yarin AL: Shear and elongational rheology of gypsum slurries, Appl. Rheol. 21 (2011) 63071 [9] Metin C, Bonnecaze R, Nguyen Q: Shear Rheology of Silica Nanoparticle Dispersions, Appl. Rheol. 21 (2011) 13146 [10] Saowapark T, Sae-oui P, Sombatsompop N, Sirisinha C: Storage Instability of Fly Ash Filled Natural Rubber Compounds, Appl. Rheol. 22 (2012) 55414 [11] Meng Y, Otaigbe J: Mechanism of unexpected viscosity decrease of polymer melts by low-Tg inorganic phosphate glass during processing, Appl. Rheol. 21 (2011) 42654 [12] Kirchberg S, Ziegmann G: Effect of Spherical Iron Silicon (FeSi) icroparticles on the Viscosity Behaviour of Polypropylene Melt, Appl. Rheol. 21 (2011) 35495
Applied Rheology Volume 22 · Issue 5
229
