Highlights
New Lab Equipment Enhances Our Research Capabilities
Date: February 2024
We’re excited to announce the addition of another measuring Peltier plate and a brand new Peltier hood for our rotational rhometers. This will significantly enhance our ability to measure material properties under stable temperature conditions, ranging from below room temperature up to 220°C.
Treesearch and FibRe online seminar series
Date: November 2023
Roland presents some of our recent research on measuring and modeling the behaviour of wood fiber composites and predicting the orientation of wood fibers in the extrusion process.
Moderator: Prof. Anette Larsson (Chalmers).
See the full lecture:
Check out our 2022 Gallery of Fluid Motion entry!
Watch Roland talk about ‘Combining rheology and small-angle X-ray scattering at the MAX IV Laboratroy in Lund’
Date: November 2022
A new rheometer has been commissioned at the CoSAXS breamline at MAX IV. An overview of the general uses of rheo-SAXS, what can be currently done at MAX IV and a few new experiments that we already performed, will be presented in this seminar.
Moderator: Dr. Anastasia Riazanova (KTH).
Watch the webinar here or directly on Youtube.
On the cover of Journal of Applied Polymer Science
Date: January 2023
Our work is featured on the cover of JAPS - Volume 140, Issue 1-2! About the cover: The photo shows complex extrudate patterns captured inline during the extrusion of polymer melts. Due to a disturbance at the die exit, the extrudate formed large undulations in addition to the surface instabilities.
Trivia: the photo is about 10 years old, taken while Roland was a postdoctoral researcher in the group of Prof. Manfred Wilhelm at the Karlsruhe Institute of Technology.
Read our JAPS article here.
Watch Roland talk about ‘Cellulose Nanocrystals in simple and not so simple flows’
Date: April 2022
In this Tandem Webinar held by Chalmers Area of Advance Materials Science, Roland and Prof. Jan Lagerwall (University of Luxembourg) talked about ‘Perspectives on Nanocrystals’:
Cellulose nanocrystals in simple and not so simple flows (Prof. Roland Kádár, Chalmers)
Using liquid crystal phase separation to fractionate cellulose nanocrystals (Prof. Jan Lagerwall, University of Luxembourg)
Moderator: Prof. Leif Asp (Chalmers).
Watch the webinar here or directly on Chalmers Play.
On the cover of Journal of Rheology
Date: September 2021
Our work is featured on the cover of Journal of Rheology - Volume 65, Issue 5! About the cover: Cellulose nanocrystals (CNCs) in water self-assemble into liquid crystalline orders that create beautiful patterns when observed through polarized light imaging. The cover images represent space-time visualizations of the birefringence patterns observed during shear hysteresis loop tests through combined rheology - polarized light imaging of CNC water suspensions. 4-5 wt% are biphasic CNC suspensions while 6-8 wt% are liquid crystalline.
Read our Journal of Rheology article on the thixotropy of cellulose nanocrystal suspensions here while the cover can be downloaded from here.
On the supplementary cover of ACS Nano
Date: July 2021
Our work is featured on the supplementary cover of ACS Nano - Volume 15, Issue 5! About the cover: Cellulose nanocrystals (CNCs) are 1D lyotropic nanoparticles that form a liquid-crystalline phases in water. This photo shows alignment of CNCs in a suspension, visualized by shear induced polarized light imaging combined with rheological characterization. It is one of the hyphenated rheological techniques for CNC characterization we discuss in this review.
To download the ACS Nano cover click here and to read the review article click here.
A new benchmark for antibacterial surfaces created in our lab!
Date: March 2021
Antibacterial surfaces created in our lab can prevent infections killing 99.9999% of bacteria which try to attach, a 10 000-fold improvement over the previous benchmark. The surfaces are based on graphite nanoplatelets embedded in polyethylene, a cheap and viable potential solution to a problem which affects millions, costs huge amounts of time and money, and accelerates antibiotic resistance. The graphite nanoplatelets pierce and damage the cell membrane, killing the bacteria, see the illustration above. The key it to control the morphology of the nanocomposite through processing flows.
Read our Small article here.
Other press releases: ScienceDaily, New Atlas, AZO Nano, The Medical News, Silicon Republic, Engineers Online, Nanowerk, My News Desk, Forskning.se, EurekAlert!, Phys.org, etc.
Illustration: Yen Strandqvist.
Roland elected President of the Nordic Rheology Society
Date: August 2020
The new board of the Nordic Rheology Society (see photo below) was voted in at the annual business meeting of the society, in conjunction with NRC 2022. The mandate is for a four year term, between 2020-2024.
New unique test opportunities to be developed at Max IV
Date: Jan 2020
In a cooperation project between Chalmers and MAX IV we will develop a new rheometer system as sample environment for the synchrotron facility at MAX IV. Our aim is to develop a few niche world-first rheological testing techniques for the CoSAXS and ForMAX beamlines.
Other press releases: Big Science Sweden
Annual European Rheology Conference, April 13-15, 2021
Almost as usual. Due to the ongoing pandemic…
… the Annual European Rheology Conference 2021 (AERC 2021) was held in the metaverse where participants met as customized avatars. Avatars could then walk around in the conference center and interact with colleagues almost like in real life. The conference was unique in two respects: (i) it was the first AERC held in Cyberspace and (ii) for the first time in the history of the European Society of Rheology (ESR) the organizing committee of an AERC was composed of pan-European volunteers.
More than 500 participants from 38 countries took part in the unique rheology event.
Conference chair: Roland Kádár (Chalmers, Sweden) Conference co-chair: Mats Stading (RISE, Sweden); Conference secretary: Olli-Ville Laukkanen (RWTH Aachen, Germany)
Organizing commmittee: Peter Fischer (ETH Zürich, Switzerland), Alexandra Aulova (University of Lubljana, Slovenia), Maria Teresa Cidade (Universidade NOVA de Lisboa, Portugal), George Petekidis (University of Crete IESL-FORTH, Greece), Johanna Andersson (RISE, Sweden), Christian Clasen (KU Leuven, Belgium), Jan Engmann (Nestlé Research, Switzerland), Anke Lindner (ESPCI and Paris University, France), Mario Minale (Università della Campania “Luigi Vanvitelli”, Italy), Daphne Weihs (Technion-Israel Institute of Technology, Israel).
Invited speakers: Sébastien Manneville (Ecole Normale Supérieure de Lyon/CNRS, France), Veronique Trappe (University of Fribourg, Switzerland), Michel Cloitre (Weissenberg awardee, CNRS, France)
Gold Sponsors: Anton Paar, TA Instruments
Silver Sponsors: Physics of Fluids, Nestlé, Tetra Pak, ThermoFisher Scientific
29th Nordic Rheology Conference, in Cyberspace, August 25-26, 2020
In a time when the covid-19 pandemic threatens all scientific meetings…
… we found a way to bring people together in a unique environment. In a first of its kind in the rheology world, the conference was held in the metaverse, where participants could customize a look-alike avatar and interact with other participants in a well designed virtual world.
Conference chair: Mats Stading Conference co-chair: Roland Kádár;
Organizing committee: Jessica Twedmark, Johanna Andersson, Simon Ingelsten
Invited speakers: Natalie Germann (Technical University of Munich, Germany), Daniel Read (University of Leeds, UK)
Gold Sponsors: BillerudKorsnäs, Chalmers Area of Advance Materials Science, RISE Research Institutes of Sweden, The Research Council Formas, Gothenburg City
Silver Sponsors: Tetra Pak
Bronze Sponsors: TA Instruments, Lantmännen, Anton Paar, Rheo Filament, Coloplast
28th Nordic Rheology Conference, Gothenburg, August 21-23, 2019
An international success: 125 participants from 17 nations enjoyed the event hosted at Chalmers University of Technology, Gothenburg, Sweden.
Conference chair: Roland Kádár; Conference co-chair: Mats Stading;
Organizing committee: Jessica Twedmark, Patricia Lopez Sanchez, Anna Ström, Carina Schultz and Agne Swerin
Invited speakers: Gareth McKinley (MIT, USA), Paula Moldenaers (KU Leuven, Belgium), Alaind Dufresne (Grenoble INP, France), Daniel Söderberg (KTH, Sweden)
Gold Sponsors: BillerudKorsnäs, Chalmers Area of Advanec Materials Science, RISE Research Institutes of Sweden, The Research Council Formas, Gothenburg City
Silver Sponsors: Tetra Pak
Bronze Sponsors: TA Instruments, Lantmännen, Anton Paar, Rheo Filament, Coloplast
