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Thermal, spectroscopic and rheological study of mineral base lubricating oils

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Abstract

The thermal degradation process of mineral base lubricating oils was studied in this work by means of thermal, spectroscopic and rheologic analysis. The lubricating oils were degraded at temperatures varying from 150 to 210°C, and for degradation times from 1 to 48 h. After the degradation, the lubricating oils were characterized by X-ray fluorescence, IR and NMR spectroscopies, rheological properties and thermal analyses (TG/DSC). The spectroscopic analyses determined the oxidation reaction products. TG curves indicate that the thermal stability of lubricating oils is below 161°C. TG curves in air present three mass loss stages, whereas in nitrogen there are only two mass loss steps. DSC analyses in air indicate two highly exothermic peaks related to hydrocarbon oxidation and combustion processes, while in nitrogen only two endothermic peaks were observed. The decrease in the degradation temperature led to a decrease of the lubricant viscosity.

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References

  1. MS M Souza (2000) Quim. Deriv. 20 382

    Google Scholar 

  2. KS Pedersen HP Ronningsen (2003) Energy Fuel 17 321 Occurrence Handle10.1021/ef020142+ Occurrence Handle1:CAS:528:DC%2BD3sXptVSitQ%3D%3D

    Article  CAS  Google Scholar 

  3. JM Perez (2000) Thermochim. Acta 357 47 Occurrence Handle10.1016/S0040-6031(00)00367-1

    Article  Google Scholar 

  4. C Keskin MV Kök (2001) Thermochim. Acta 369 143 Occurrence Handle10.1016/S0040-6031(00)00765-6

    Article  Google Scholar 

  5. CD Gamlin NK Dutta NR Choudhury D Kehoe J Matisons (2002) Thermochim. Acta 392 357 Occurrence Handle10.1016/S0040-6031(02)00121-1

    Article  Google Scholar 

  6. JCO Santos AG Souza IMG Santos MM Conceição MA Silva EV Sobrinho VJ Fernandes Jr FSM Sinfrônio (2005) J. Therm. Anal. Cal. 79 461 Occurrence Handle10.1007/s10973-005-0085-z Occurrence Handle1:CAS:528:DC%2BD2MXkt1Chsb8%3D

    Article  CAS  Google Scholar 

  7. WF Bowman GW Stachowiak (1996) Lubr. Eng. 52 745 Occurrence Handle1:CAS:528:DyaK28XmslOgsLw%3D

    CAS  Google Scholar 

  8. JCO Santos AG Souza MM Conceição MFS Trindade SL Porto AS Araújo S Prasad IMG Santos (2004) J. Therm. Anal. Cal. 75 419 Occurrence Handle10.1023/B:JTAN.0000027128.62480.db Occurrence Handle1:CAS:528:DC%2BD2cXisVGqu7o%3D

    Article  CAS  Google Scholar 

  9. DL Pavia GM Lampman GS Kriz et al. (1997) Introduction to Spectroscopy Harcourt Brace College Publishers New York 510

    Google Scholar 

  10. RM Silverstein GC Bassler TC Morrill et al. (1991) Spectrometric Identification of Organic Compounds, 5th Ed. John Wiley New York 300

    Google Scholar 

  11. RE Kauffman AS Feng KR Karasek (2000) Tribol. T. 43 677 Occurrence Handle1:CAS:528:DC%2BD3cXntVOlurg%3D

    CAS  Google Scholar 

  12. RS Lehrle R Duncan Y Liu IW Parsons M Rollinson G Lamb D Barr (2002) J. Anal. Appl. Pyrolysis 64 207 Occurrence Handle10.1016/S0165-2370(02)00032-3 Occurrence Handle1:CAS:528:DC%2BD38XmsVWitL4%3D

    Article  CAS  Google Scholar 

  13. JCO Santos MGO Santos JP Dantas MM Conceição PF Athaide-Filho AG Souza (2005) J. Therm. Anal. Cal. 79 283 Occurrence Handle10.1007/s10973-005-0050-x Occurrence Handle1:CAS:528:DC%2BD2MXkt1Ciu7g%3D

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Unidade Acadêmica de Educação, CES, UFCG, Olho D’água da Bica, Cuité, Brazil, 58175-000, Paraíba

    J. C. O. Santos

  2. Unidade Acadêmica de Engenharia Química, CCT, UFCG, Campina Grande, Brazil, 58109-970, Paraíba

    L. N. Lima

  3. Departamento de Química, CCEN, UFPB, João Pessoa, Brazil, 58059-900, Paraíba

    Iêda M. G. Santos & A. G. Souza

Authors
  1. J. C. O. Santos
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  2. L. N. Lima
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  3. Iêda M. G. Santos
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  4. A. G. Souza
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Correspondence to J. C. O. Santos.

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Santos, J.C.O., Lima, L.N., Santos, I.M.G. et al. Thermal, spectroscopic and rheological study of mineral base lubricating oils. J Therm Anal Calorim 87, 639–643 (2007). https://doi.org/10.1007/s10973-006-7773-1

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  • DOI: https://doi.org/10.1007/s10973-006-7773-1

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