Evaluation of antioxidant properties of a phosphorated cardanol compound on mineral oils (NH10 and NH20)

Studies on thermal-oxidative stability of a phosphorated antioxidant, synthesized from a natural and renewable resource cashew nut shell liquid (CNSL) was investigated, using a classical thermoanalytical method-thermogravimetric (TG/DTG) in air atmosphere. Its use as an antioxidant agent on the mine...

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Bibliographic Details
Published in:Fuel (Guildford) 2007-10, Vol.86 (15), p.2416-2421
Main Authors: Rios Façanha, Maria Alexsandra, Mazzetto, Selma Elaine, Beserra Carioca, José Osvaldo, de Barros, Glaucione Gomes
Format: Article
Language:English
Subjects:
Applied sciences
CNSL
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
Liquid petroleum product processing
Oxidative stabilization
Phosphorated antioxidant
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Summary:Studies on thermal-oxidative stability of a phosphorated antioxidant, synthesized from a natural and renewable resource cashew nut shell liquid (CNSL) was investigated, using a classical thermoanalytical method-thermogravimetric (TG/DTG) in air atmosphere. Its use as an antioxidant agent on the mineral oils NH10 and NH20 was evaluated in comparative studied with a commercial product (diphenyl phosphate – Aldrich). The addition of 1.2–2.0 wt% of phosphorated cardanol compound to the mineral oils has improved their thermal-oxidative stability on 14–18 °C, respectively. The occurrence of major thermal degradation events at higher temperatures ( T max) on additivated oils is an excellent indication of the phosphorated cardanol compound antioxidant properties.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2007.01.034