NFC /MFC Porous Structures

Development of microfibrillated cellulose-based porous materials in consideration of industrial relevant processes (CelPorMat)
Picture: The light-weight material absorbs the oil spill, remains floating on the water surface and can then be recovered.

The objective of this project is to engineer cellulose-based porous materials, which can be used for various sorption applications for liquids. By tailoring the porosity and surface chemistry of these novel three-dimensional cellulosic structures, the hydrophilicity and oleophilicity of the final product will be tuned and optimized. The development and engineering of the sorbents take place with regard to industrial relevant processes and scalability.





Weidmann Fiber Technology (Wicor Holding AG)

Otto Nylén / Stefan Truniger


ETH Zurich, Laboratory of Food Process Engineering 

Prof. Erich Windhab

Judith Wemmer


Funding: Commission for Technology and Innovation CTI



Figure 2 and 3: Cellulose pulp fibers are converted first into a NFC water-suspension and processed by fitration to form a dense NFC membrane. This was investigated by means of SEM microscopy, nitrogen adsorption, mercury intrusion and thermoporometry
Figure 4: Superhydrophobic NFC membrane modified with chlorosilane showing water repellence behaviour.
Figure 2: representation of a designed flow through ALD reactor