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Capillary suspensions: a novel route for versatile, cost efficient and environmentally friendly material design

Objective

A wide variety of materials including coatings and adhesives, emerging materials for nanotechnology products, as well as everyday food products are processed or delivered as suspensions. The flow properties of such suspensions must be finely adjusted according to the demands of the respective processing techniques, even for the feel of cosmetics and the perception of food products is highly influenced by their rheological properties. The recently developed capillary suspensions concept has the potential to revolutionize product formulations and material design. When a small amount (less than 1%) of a second immiscible liquid is added to the continuous phase of a suspension, the rheological properties of the mixture are dramatically altered from a fluid-like to a gel-like state or from a weak to a strong gel and the strength can be tuned in a wide range covering orders of magnitude. Capillary suspensions can be used to create smart, tunable fluids, stabilize mixtures that would otherwise phase separate, significantly reduce the amount organic or polymeric additives, and the strong particle network can be used as a precursor for the manufacturing of cost-efficient porous ceramics and foams with unprecedented properties.
This project will investigate the influence of factors determining capillary suspension formation, the strength of these admixtures as a function of these aspects, and how capillary suspensions depend on external forces. Only such a fundamental understanding of the network formation in capillary suspensions on both the micro- and macroscopic scale will allow for the design of sophisticated new materials. The main objectives of this proposal are to quantify and predict the strength of these admixtures and then use this information to design a variety of new materials in very different application areas including, e.g., porous materials, water-based coatings, ultra low fat foods, and conductive films.

Field of science

  • /engineering and technology/materials engineering/coating and films

Call for proposal

ERC-2013-StG
See other projects for this call

Funding Scheme

ERC-SG - ERC Starting Grant

Host institution

KATHOLIEKE UNIVERSITEIT LEUVEN
Address
Oude Markt 13
3000 Leuven
Belgium
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 578 792,38
Principal investigator
Erin Crystal Koos (Prof.)
Administrative Contact
Wannes Heirbaut (Mr.)

Beneficiaries (2)

KATHOLIEKE UNIVERSITEIT LEUVEN
Belgium
EU contribution
€ 578 792,38
Address
Oude Markt 13
3000 Leuven
Activity type
Higher or Secondary Education Establishments
Principal investigator
Erin Crystal Koos (Prof.)
Administrative Contact
Wannes Heirbaut (Mr.)
KARLSRUHER INSTITUT FUER TECHNOLOGIE
Germany
EU contribution
€ 910 825,22
Address
Kaiserstrasse 12
76131 Karlsruhe
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Kristine Bentz (Dr.)