Advertisement

Journal of Materials Science

, Volume 43, Issue 6, pp 1869–1879 | Cite as

Comparison of microstructural and physical properties of two petroleum waxes

  • Maria Petersson
  • Ingrid Gustafson
  • Mats Stading
Article

Abstract

Microstructural and physical properties of two petroleum waxes, petrolatum and microcrystalline wax, were characterized in this work. Petroleum waxes are known to be hydrophobic and can be used in applications where a good moisture barrier is needed. In order to achieve a better understanding of different inherent properties of a wax, the two waxes in this work were characterized with infrared spectroscopy, confocal laser scanning microscopy, differential scanning calorimetry, rheology and X-ray diffraction. It was concluded from the results of infrared spectroscopy that the two waxes consisted only of saturated alkanes. Confocal laser scanning microscopy showed that the petrolatum sample had a more open microstructure with coarse crystals separated from each other than the microcrystalline wax, which appeared to have a more network-like crystalline structure consisting of somewhat finer crystals. Both waxes crystallized over a broad temperature range. Their crystallization characteristics were quite different, however, probably owing to a different oil content. According to modulated differential scanning calorimetry and rheological measurements the microcrystalline wax crystallized through a two-step process, whereas the petrolatum crystallized through only one step.

Keywords

Rheological Measurement Petrolatum Modulate Differential Scanning Calorimetry Water Vapour Barrier Confocal Laser Scanning Microscopy Analysis 

Notes

Acknowledgements

We would like to thank the Knowledge Foundation through its graduate school YPK for financial support. Paula Olofsson and Maud Langton are also gratefully acknowledged for their valuable comments on the interpretation of the CLSM micrographs and Niklas Lorén for valuable discussions. Mats Stading gratefully acknowledges funding from the EU project NovelQ and Vinnova (The Swedish Governmental Agency for Innovation Systems).

References

  1. 1.
    MacLaren FH (1951) Tappi 34:462Google Scholar
  2. 2.
    Warth AH (1956) The chemistry and technology of waxes. Reinhold Publishing Corporation, New YorkGoogle Scholar
  3. 3.
    Bennett H (1975) Natural and synthetic waxes. Chemical Publishing Company, Inc., New YorkGoogle Scholar
  4. 4.
    Srivastava SP, Handoo J, Agrawal KM, Joshi GC (1993) J Phys Chem Solids 54:639CrossRefGoogle Scholar
  5. 5.
    Nowak MJ, Severtson SJ (2001) J Mater Sci 36:4159. doi: https://doi.org/10.1023/A:1017908703339 CrossRefGoogle Scholar
  6. 6.
    Nozaki K, Hikosaka M (2001) In: Garti N, Sato K (eds) Crystallization processes in fats and lipid systems. Marcel Dekker Inc., New York, p 151Google Scholar
  7. 7.
    Fox RC (1958) Tappi 41:283Google Scholar
  8. 8.
    Salame M, Steingiser S (1977) Polym-Plast Technol Eng 8:155CrossRefGoogle Scholar
  9. 9.
    Le Roux JH, Loubser NH (1980) S Afr J Sci 76:157Google Scholar
  10. 10.
    Basson I, Reynhardt EC (1992) Chem Phys Lett 198:367CrossRefGoogle Scholar
  11. 11.
    Pavia DL, Lampman GM, Kriz GS (1996) Introduction to spectroscopy. A guide for students of organic chemistry. Saunders College Publishing, USAGoogle Scholar
  12. 12.
    Lu X, Redelius P (2006) Energy & Fuels 20:653CrossRefGoogle Scholar
  13. 13.
    Loth C (2004) In: Diploma thesis. Chalmers University of TechnologyGoogle Scholar
  14. 14.
    Sauer BB, Kampert WG, Neal Blanchard E, Threefoot SA, Hsiao BS (2000) Polymer 41:1099CrossRefGoogle Scholar
  15. 15.
    Edwards RT (1958) Tappi 41:267Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Maria Petersson
    • 1
    • 2
    • 3
  • Ingrid Gustafson
    • 1
  • Mats Stading
    • 2
    • 3
  1. 1.SCA Hygiene Products ABGothenburgSweden
  2. 2.SIK – The Swedish Institute for Food and BiotechnologyGothenburgSweden
  3. 3.Department of Materials and Manufacturing TechnologyChalmers University of TechnologyGothenburgSweden

Personalised recommendations