Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation

Zeolite nanocrystals were used as proactive agents to extend the lifetime of commercial lubricants by protecting the performance additives from depletion and adsorbing the acid formed during oxidation. The nanosized zeolites were introduced into four lubricants and subjected to oxidation (90 °C and...

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Autores principales: Zaarour, Moussa, El Siblani, Hussein, Arnault, Nicolas, Boullay, Philippe, Mintova, Svetlana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6747958/
https://www.ncbi.nlm.nih.gov/pubmed/31484294
http://dx.doi.org/10.3390/ma12172830
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author Zaarour, Moussa
El Siblani, Hussein
Arnault, Nicolas
Boullay, Philippe
Mintova, Svetlana
author_facet Zaarour, Moussa
El Siblani, Hussein
Arnault, Nicolas
Boullay, Philippe
Mintova, Svetlana
author_sort Zaarour, Moussa
collection PubMed
description Zeolite nanocrystals were used as proactive agents to extend the lifetime of commercial lubricants by protecting the performance additives from depletion and adsorbing the acid formed during oxidation. The nanosized zeolites were introduced into four lubricants and subjected to oxidation (90 °C and 150 °C). A strong affinity towards protection of zinc dialkyldithiophosphate (ZDDP) additive was demonstrated by (31)P NMR (nuclear magnetic resonance) and FTIR (fourier-transform infrared) spectroscopy even after heating at 150 °C for 24 h. FTIR profiles of lubricants aged in the presence of LTL (Linde Type L zeolite) showed lower oxidation degree while the formed oxidation products (aldehydes, ketones, and acids) were adsorbed on the zeolite crystals acting as scavengers.
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spelling pubmed-67479582019-09-27 Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation Zaarour, Moussa El Siblani, Hussein Arnault, Nicolas Boullay, Philippe Mintova, Svetlana Materials (Basel) Article Zeolite nanocrystals were used as proactive agents to extend the lifetime of commercial lubricants by protecting the performance additives from depletion and adsorbing the acid formed during oxidation. The nanosized zeolites were introduced into four lubricants and subjected to oxidation (90 °C and 150 °C). A strong affinity towards protection of zinc dialkyldithiophosphate (ZDDP) additive was demonstrated by (31)P NMR (nuclear magnetic resonance) and FTIR (fourier-transform infrared) spectroscopy even after heating at 150 °C for 24 h. FTIR profiles of lubricants aged in the presence of LTL (Linde Type L zeolite) showed lower oxidation degree while the formed oxidation products (aldehydes, ketones, and acids) were adsorbed on the zeolite crystals acting as scavengers. MDPI 2019-09-03 /pmc/articles/PMC6747958/ /pubmed/31484294 http://dx.doi.org/10.3390/ma12172830 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zaarour, Moussa
El Siblani, Hussein
Arnault, Nicolas
Boullay, Philippe
Mintova, Svetlana
Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title_full Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title_fullStr Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title_full_unstemmed Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title_short Zeolite Nanocrystals Protect the Performance of Organic Additives and Adsorb Acid Compounds during Lubricants Oxidation
title_sort zeolite nanocrystals protect the performance of organic additives and adsorb acid compounds during lubricants oxidation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6747958/
https://www.ncbi.nlm.nih.gov/pubmed/31484294
http://dx.doi.org/10.3390/ma12172830
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