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Design of polymeric binders to improve the properties of magnesium phosphate cement
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SYSNO ASEP 0541635 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Design of polymeric binders to improve the properties of magnesium phosphate cement Author(s) Zárybnická, Lucie (UTAM-F) RID, SAI, ORCID
Machotová, J. (CZ)
Mácová, Petra (UTAM-F) RID, SAI, ORCID
Machová, Dita (UTAM-F) RID, ORCID, SAI
Viani, Alberto (UTAM-F) RID, ORCID, SAIArticle number 123202 Source Title Construction and Building Materials. - : Elsevier - ISSN 0950-0618
Roč. 290, July (2021)Number of pages 10 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords magnesium phosphate cement ; acrylic latex ; self-crosslinking ; emulsion polymerization Subject RIV JJ - Other Materials OECD category Materials engineering R&D Projects GA20-01280S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UTAM-F - RVO:68378297 UT WOS 000659370300010 EID SCOPUS 85103934667 DOI 10.1016/j.conbuildmat.2021.123202 Annotation In the context of reducing the environmental impact of cement manufacturing, magnesium phosphate cements raise interest as alternative binders in construction, for immobilization of wastes, and recycling purposes. Their use in applications is somehow limited by short setting time, brittleness and low water resistance, this calls for the use of additives. Two polymer additives were designed adopting emulsion polymerization, an environmentally friendly solution to make available polymers as water-based latex dispersions. The composites containing 5 wt% of polymer, exhibited better elastic behaviour, with up to twice the toughness of the reference sample and of a sample produced with commercial styrenebutadiene rubber latex. Moreover, the additives reduced the apparent porosity, promoted phosphate crystallization, modified the size and shape of crystals, and effectively retarded the reaction, extending working time. The acrylic emulsion developing keto-hydrazide self-crosslinking reaction imparted better properties to the composite, thanks to the synergistic effect with the MPC setting reaction. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.conbuildmat.2021.123202
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