6533b7d3fe1ef96bd1260004

RESEARCH PRODUCT

A unique microstructure of the fiber networks deposited from foam-fiber suspensions

Harri KiiskinenJussi TimonenJukka KetojaAhmad M. Al-qararahAxel EkmanTuomo HjeltAntti Koponen

subject

BubbleMaterials scienceAqueous solutionta114PoreFiber networkBubbleFiber networkStructureMicrostructureFoamCharacterization (materials science)X-rayCellulose fiberColloid and Surface ChemistrystrenghtFiberStrengthComposite materialMaterial propertiesX-ray tomography

description

Abstract Fiber networks can be formed using aqueous foam as the suspending medium. The mean bubble size of the foam affects the resulting pore-size distribution of the fiber network. The foam–fiber interactions cause in particular an increase in the proportion of large micropores of the network, in comparison with the fiber networks that result from traditional water forming at a similar material density. Experiments were carried out for two different types of cellulose fiber, and characterization of the resulting pore structure was based on X-ray microtomography of the resulting fiber networks. The unique pore structure obtained with foam forming was reflected in various macroscopic properties of the networks, which provides an intriguing opportunity to control the material properties of fiber networks via the selection of their forming.

10.1016/j.colsurfa.2015.07.010https://doi.org/10.1016/j.colsurfa.2015.07.010