Layer-by-layer deposition of copper and phosphorus compounds to develop flame-retardant polyamide 6/montmorillonite hybrid composites
Authors:
- Tomasz M. Majka,
- Monika Witek,
- Paulina Radzik,
- Karolina Komisarz,
- Agnieszka Mitoraj,
- Krzysztof Pielichowski
Abstract
Nowadays, increasing attention is devoted to the search for polymeric composite materials that are characterized by reduced flammability. In this work, the layer-by-layer (LbL) technique was applied to form multilayered protective coatings for polyamide 6/montmorillonite (PA6/MMT) hybrid nanocomposites. This time, the double layers LbL deposition was used in order to improve the thermal properties or flammability of PA6 materials. Our goal was to check how five, 10, and 15 triple-layer deposition onto the surface of PA6 and PA6/MMT composites influenced these relevant properties. For this reason, disodium H-phosphonate, sodium montmorillonite, and iodo-bis(triphenylphosphino)copper were used for polyelectrolyte solution preparation. It was found that the LbL method could be successfully used to improve the flammability characteristics of polyamide 6-based composites. Nevertheless, the deposition of the copper complex should be combined with other flame retardants—preferentially containing phosphorus—which enable synergistic effects to occur. Moreover, microscopic observations confirmed that the surfaces on which the formation of interwoven fibrous crystal structures was observed had a tendency to protect the entire material against the destructive effects of heat, contributing, among other things, to reduce the maximum point of heat release rate (PHRR).
- Record ID
- CUT206a62da1e8942cfbad821e065bd4768
- Publication categories
- ;
- Author
- Journal series
- Applied Sciences-Basel, ISSN 2076-3417, Monthly
- Issue year
- 2020
- Vol
- 10
- No
- 14
- Pages
- [1-20]
- Article number
- 5007
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 18-20; Bibliografia (liczba pozycji) - 41; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 10, Iss. 14, Spec. Iss.
- Substantive notes
- Special Issue: Synthesis, Characterization and Application of Hybrid Composites
- Keywords in English
- PA6, montmorillonite, flammability, surface modification, thermal properties, flame retardants, hybrid composites, chemical engineering
- DOI
- DOI:10.3390/app10145007 Opening in a new tab
- URL
- https://www.mdpi.com/2076-3417/10/14/5007/htm Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT206a62da1e8942cfbad821e065bd4768/
- URN
urn:pkr-prod:CUT206a62da1e8942cfbad821e065bd4768
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.