Future Events

Heraeus seminar 2019

Wetting on soft or microstructured surfaces

Bad Honnef, 11 – 13 April 2019

 

The seminar will bring together experts and early stage researchers (PhD students and postdocs) interested in the understanding of the wetting of soft or microstructured surfaces. We aim at discussing in depth the latest progress and current challenges in the characterization and modelling of such surfaces. In particular, the interplay of static and dynamic wetting properties with substrate topography and softness will be deliberated.

 

We aim to discuss:

  • How to understand contact angle hysteresis of drops on soft or microstructured surfaces.
  • How can we tune contact angle hysteresis?
  • What determines the friction of droplets moving over soft or microstructured surfaces?
  • What kind of dissipation mechanism determine the motion of droplets?
  • How does contact line friction couple to the reorganisation of the contact line?
  • How does the motion of drops depend on the shape of the wetting ridge, the softness of the substrate or the viscosity of a lubricating film?
  • How do lubricant infused surfaces withstand shear stresses?

 

 

Venue:

Physikzentrum Bad Honnef
Hauptstraße 5
53604 Bad Honnef

Past Events

School on “Wetting and modeling of lubricant impregnated surfaces”, 19-20 November 2018

LubISS school on “Wetting and modeling of lubricant impregnated surfaces” was held on 19 -20 November 2018, at the Max Planck Institute for Polymer Research in Mainz, Germany. Below you can find a group picture of the participants and a short description of the event.

 

 

© MPI-P

 

 

Topic:

Textured substrates infiltrated with a lubricant form a new class of functional surfaces, known as lubricant-infused slippery surfaces. They are promising candidates for low adhesive, anti-icing and anti-fouling surfaces.

To design durable slippery surfaces, a better understanding of the interplay between the physical and chemical interactions among the surface topography, the lubricating film and the droplet under static and flow conditions is essential. After an introduction on how to chemically modify surfaces, the basic concepts to model wetting of smooth, and rough surfaces will be introduced.

This includes advancing, receding contact angles, tilting angles, and lateral adhesion forces. The consequences of a lubricating film will be discussed, including the Neumann triangle, spreading coefficient, capillary forces and elastic forces. Different mechanisms of adhesion will be introduced. Analytical and numerical methods to describe adhesion are going to be presented, including mesoscopic (Lattice Boltzmann method) and macroscopic (scaling analysis and lubrication theory) approaches.

 

Speakers

Prof. Jochen Gutmann Department of Physical Chemistry, University of Duisburg (Germany), 4 hours

“Introduction to surface modification”

Prof. David Quéré         Physics and Mechanics of Heterogeneous Media Laboratory, ESPCI (France), 4 hours

“Modeling wetting using scaling analysis”

Prof. Jacco Snoeijer      Physics of Fluids group, University of Twente (The Netherlands), 4 hours

“Lubrication and elastocapillarity”

Prof. Julia Yeomans      Department of Physics, University of Oxford (United Kingdom), 4 hours

“An introduction to the theory of wetting”and “Lattice Boltzmann simulations and their applications”

 

 

Please find below the schedule and the flyer of the school:

Program of the 2nd LubISS school

Flyer of the 2nd LubISS school

 

Travel information:

Please visit the Max Planck Institute for Polymer Research page for travel information

or download the following file:

Public Transport (Mainz)

 

Please find here a list of possible accommodation in Mainz:

Accommodation in Mainz

 

Mid-term meeting, 21 November 2018

The mid-term meeting is an assessment of all aspect (scientific, training, management, networking, etc.) described in the Grant Agreement (Annex I- Description of the Action). Besides of that, it will give the possibility to establish a constructive dialogue between the network participants and the REA Project Officer Caroline Peters.

 

Please find below the preliminary schedule:

Program of the mid-term meeting

Progress meeting in Twente

The University of Twente in Enschede (The Netherlands) will host the next LubISS progress meeting. It will take place from 12-14 June 2018.

Please find below the schedule:
Program of Twente meeting

Venue:

Universität Twente
5, Drienerlolaan
NL-7522 NB Enschede

European Colloid and Interface Science conference

The LubISS network is organizing together with the Collaborative Research Center 1194 and the Marie Sklodowska-Curie Innovative Training Networks (MSCA-ITN) “COWET” a wetting session during the European Colloid and Interface Science (ECIS) annual conference, which will take place from 3 – 8 September, 2017 in Madrid, Spain.

The wetting session entitled “Wetting and Superhydrophobic Surfaces” will be held from 5 – 7 September, 2017.

The annual ECIS Conference is a major event for the colloid science community. The primary goal of this conference is to bring together all major disciplines of colloids and interfaces, enabling participants to exchange knowledge, communicate each other the results of their recent research, and to network with colleagues for new collaborations. The ECIS 2017 will cover fundamental and applied advances in the fields of interfaces, dispersed systems, wetting, complex fluids, micro-and nano-engineered materials, upconversion nanoparticles, ion specific effects, self-assembly of surfactants, polymers and proteins, and advances in theory and instrumentation.

LubISS school no. 1

Methods to fabricate, chemically modify and characterize LubISS

Mainz, 11 – 13 April 2018

 

This school will provide theoretical and practical knowledge on key fabrication, chemical modification and characterization techniques.

The school is going to start with an introduction in wetting and on lubricant impregnated surface.  An overview of the synthetic approaches for fabrication of LubISS will be given. Complementary lectures will be given on chemical modification by grafting from and grafting to techniques of polar and non-polar molecules, gels and polyelectrolytes. The theoretical knowledge of the synthetic approaches will be deepened by hands-on training on dip and spray coating, chemical modification of the surface by chemical vapour deposition of semifluorinated silanes or chemical binding of hydro- or organogels at surfaces. ESRs will be familiarized with different microscopic techniques (laser scanning confocal, interference, and video microscopy), contact angle and interfacial tension measurements, spectroscopic characterization techniques and (lateral) adhesion force measurements.

 

ITN LubISS – School program

 

Lab program

 

Venue:

This school will take place in room 1.003 at the Max Planck Institute for Polymer Research, in Mainz, Germany.
Max Planck Institute for Polymer Research
Ackermannweg 10
D-55128 Mainz

Please note
This school is reserved for the members of the LubISS network. As a registered member of the Zsigmondy Colloquium 2018, you are welcome to attend the general session on Wednesday, April 11, 2018.

LubISS kick-off meeting, 18 – 20 January, 2017

LubISS kick-off meeting was held on 18 -20 January 2017, at the Max Planck Institute for Polymer Research in Mainz, Germany.

 

 

Below you can find pictures of the participants (from left to right):

Armelle Gas, David Quéré, Detlef Lohse, Doris Vollmer, Georg Dürr, Hans-Jürgen Butt, Jacco Snoeijer, Johanna Lahti, Julia Yeomans, Maria D’Acunzi, Petri Sorsa, Philipp Baumli, Stefan Seeger und Jochen Stefan Gutman.

 

Photographer: © Roland Bednarz

 

Please find here the Programm of the LubISS kick-off meeting.