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Preparation of microcellular low-density PMMA nanocomposite foams : Influence of different fillers on the mechanical, rheological and cell morphological properties

Title data

Okolieocha, Chimezie ; Beckert, Fabian ; Herling, Markus M. ; Breu, Josef ; Mülhaupt, Rolf ; Altstädt, Volker:
Preparation of microcellular low-density PMMA nanocomposite foams : Influence of different fillers on the mechanical, rheological and cell morphological properties.
In: Composites Science and Technology. Vol. 118 (August 2015) . - pp. 108-116.
ISSN 0266-3538
DOI: https://doi.org/10.1016/j.compscitech.2015.08.016

Abstract in another language

Poly(methyl methacrylate) (PMMA) nanocomposites were prepared by incorporating talc, carbon black (CB) and thermally reduced graphite oxide (TRGO) respectively. At a loading content of 5 wt %, the fillers were well dispersed within the PMMA matrix with the exception of CB. As expected, the inclusion of the respective fillers led to an increase of the tensile modulus at the expense of tensile strength and elon-gation at break compared to neat PMMA. The addition of TRGO (5 wt %) increased the dynamic complex shear viscosity (h*) and storage modulus (G /) of PMMA by one order of magnitude compared to talc and CB at the same concentration. Van Gurp-Palmen-plot further revealed the formation of filler network only for CB and TRGO particles. Physisorption measurements showed that TRGO and CB fillers were more CO 2-phillic in comparison to talc and may have contributed to increasing the amount of CO 2 retention as confirmed by sorption measurements. These features were exploited to prepare closed-cell microcellular low-density PMMA nanocomposite foams via batch-foam process.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I > Chair Anorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Faculties > Faculty of Engineering Science > Chair Polymer Engineering > Chair Polymer Engineering - Univ.-Prof. Dr.-Ing. Volker Altstädt
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 Anorganic Chemistry I
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Polymer Engineering
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 29 Mar 2018 07:28
Last Modified: 29 Mar 2018 07:28
URI: https://eref.uni-bayreuth.de/id/eprint/43141