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A New Method to Identify PCA Oil Type through Solvent Extraction and Separation Skills in a SBR Vulcanizate

SBR 가황물에서 용매추출 및 분리에 의한 PCA 오일 Type 확인법

  • Received : 2011.12.05
  • Accepted : 2012.01.31
  • Published : 2012.03.31

Abstract

More than 3 wt% of polycyclic aromatics (PCAs) in process oil is known to cause skin cancer. The criterion of distinguishing between low PCA oil and high PCA oil is based on 3 wt% of PCA. High PCA oil is called as a carcinogen like distillate aromatic extract (DAE). Low PCA oil is considered as safety oils like treated distillate aromatic extract (TDAE), mild extract solvate (MES), and paraffinic oil. Four types of process oils such as DAE, TDAE, MES, and paraffinic oil purified by solvent extraction and separation skills from SBR vulcanizates were measured by FT-IR techniques. The effects of rubber chemicals such as N-1,3-dimethylbutyl-N'-phenyl-p-phenylnenediamine (HPPD), polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (TMDQ), paraffin wax as antidegradants, and processing aid like Structol 40MS on paraffinic oil from SBR vulcanizates were also studied. The type of low or high PCA was identified by the relative abundance of absorbance at the aromatic substitution patterns of 864, 810, and $754cm^{-1}$ and at the paraffinic or naphthenic pattern of $721cm^{-1}$.

Acknowledgement

Supported by : Korea Specialty Chemical Industry Association

References

  1. International Agency for Research on Cancer Monographs "Evaluation of carcinogenic risk", Lyon, France, 32 (1983).
  2. International Agency for Research on Cancer: Mineral Oils. In: IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Humans, Lyon, France, 33, 148, April (1984).
  3. V. Null, "Safe process oils for tires with low environmental impact", Kautscbuk Gummi Kunststoffe, 52, 799 (1999).
  4. Commission Directive 93/72/EEC of 1 September 1993, 19th ATP of Council Directive 67/548/EEC, Q.J. L258, 29 (1993).
  5. Council Directive 90/394/EEC of 28/6/1990 on the protection of workers from the risks related to the exposure of carcinogen at work.
  6. U. Duus, J. Ahlbom, I. Anderson, "Toxic oil in rubber tires". KEMI National Chemicals Inspectorate, Solna, 6 (1994).
  7. Naphthenics, 2/95.
  8. CONCAWE Report 94/51, "The use of dimethyl sulphoxide (DMSO) extract by the IP346 method as an indicator of the carcinogenicity of lubricant base oil and distillate Aromatic extracts"
  9. A. B. Samsuri, "Effects of process oil on the elastic constant $C_{1}$ and strength properties of the black-filled natural rubber", ACS 145th Meeting, 52 (1994).
  10. R. W. Keller, "Oxidation and ozonation of rubber", Rubber Chem. Technol., 58, 637 (1985). https://doi.org/10.5254/1.3536082
  11. P. J. Dimauro, H. L. Paris, and M. A. Faith, "Wax protection", Rubber Chem. Technol., 52, 973 (1979). https://doi.org/10.5254/1.3535259