Structural and mechanical impact of synthetic clay in composite foams made via high-internal phase emulsions

Title data

Mayr, Lina ; Simonyan, Arsen ; Breu, Josef ; Wingert, Josef Maxwell:
Structural and mechanical impact of synthetic clay in composite foams made via high-internal phase emulsions.
In: Polymer Composites. Vol. 42 (2021) Issue 1 . - pp. 353-361.
ISSN 1548-0569
DOI: https://doi.org/10.1002/pc.25830

Official URL:

Abstract in another language

Impacts of organophilic clay on open cell foams created from high-internal phase emulsion templating were explored. Improving mechanical properties such as compression modulus by fillers is typically most challenging to realize. We investigated the effect of two different fillers: synthetic hectorite organophilized with a custom-made organo-cation and commercial organophilic montmorillonite. Contrary to the montmorillonite, the hectorite could significantly improve the foam mechanics, up to four times for foams with a relative density of 4.1%. Investigation of bulk mechanics and the morphology of foams led to the conclusion that the foam mechanics improvement is not due to a reinforcement of the struts. Instead, the organophilic hectorite might act as a Pickering emulsifier in addition to the molecular surfactants to achieve a more consistent structure, which in particular possesses more uniform strut thickness and improved mechanical properties.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	clay; composites; foams; OPEN-CELL FOAM; SSHEAR-STIFF; ELASTIC PROPERTIES; RELATIVE DENSITY; NANOCOMPOSITES; NANOPLATELETS; MORPHOLOGY; FILLER; PMMA
Institutions of the University:	Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Colloids for Electrochemical Energy storage Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Colloids for Electrochemical Energy storage > Chair Chair Inorganic Colloids for Electrochemical Energy storage - Univ.-Prof. Dr. Josef Breu
Result of work at the UBT:	No
DDC Subjects:	500 Science > 540 Chemistry
Date Deposited:	25 Oct 2022 08:01
Last Modified:	20 Sep 2024 11:42
URI:	https://eref.uni-bayreuth.de/id/eprint/72511