Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/journal/polimeros/article/doi/10.1590/0104-1428.2033
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

TLC/IR (UATR) off-line coupling for the characterization of additives in EPDM rubber compositions

Damazio, Denis; Campos, Eunice Aparecida; Diniz, Milton Faria; Mattos, Elizabeth da Costa; Dutra, Rita de Cássia Lazzarini

Downloads: 0
Views: 1031

Abstract

The knowledge of the components that constitutes a rubber composition is important to justify the properties of the final device, particularly when it comes to elastomeric compositions used in the aerospace industry. The development of methodologies that can detect components, specially the smallest proportion of the rubbers composition is a constant challenge and an important gap in the studies of this nature. Therefore, methodologies by using standard techniques and/or of last generation are important in rubber industry and research laboratories, aiming application in related research. In this context, this study shows the coupling/association techniques (off-line) of thin layer chromatography and infrared spectroscopy (TLC/IR), being the IR spectra obtained by universal attenuated total reflection (UATR), applied to the analysis of additives in rubber compositions of ethylene-propylene-diene rubber (EPDM). Two EPDM compositions, a kind of eluent system and Gibbs' reagent, as developer, were used. Basically, all organic components were detected by this methodology, being possible to suggest that it can be applied for detecting additives of similar chemical structures, even though it's presents in small amounts in the composition.

Keywords

additives, EPDM, TLC/IR off-line coupling, UATR.

References

1. Crompton, R., & Crompton, T. R. (2007). Determination of additives in polymers and rubbers. Southport: Smithers Rapra Publishing.

2. Dutra, R. C. L. (1996). Aplicação de técnica TLC-IR em estudos de separação, identificação e quantificação de aditivos em borrachas. Polímeros: Ciência e Tecnologia, 6(2), 26-31. Retrieved in 13 February 2015, from http://revistapolimeros.org.br/files/v6n2/v6n2a01.pdf

3. Striegel, M. F., & Hill, J. (1996). Thin-layer chromatography for binding media analysis (Scientific Tools for Conservation). Los Angeles: Getty Conservation Institute. Retrieved in 13 February 2015, from http://hdl.handle.net/10020/gci_pubs/thin_layer_chromatography

4. Smith, A. L. (1979). Applied infrared spectroscopy. New York: John Wiley & Sons.

5. Sanches, N. B., Cassu, S. N., Diniz, M. F., Dutra, R. C. L. (2014). Characterization of additives typically employed in EPDM formulations by using FT-IR of gaseous pyrolyzates. Polímeros: Ciência e Tecnologia, 24(3), 269-275. http://dx.doi.org/10.4322/polimeros.2014.066.

6. Santos, R. P., Oliveira, M. S., Mattos, E. C., Diniz, M. F., & Dutra, R. C. L. (2013). Study by FT-IR technique and adhesive properties of vulcanized EPDM modified with plasma. Journal of Aerospace Technology and Management, 5(1), 65-74. http://dx.doi.org/10.5028/jatm.v5i1.162.

7. Santos, R. P., Oliveira, M. S. Mattos, E. C.; Diniz, M. F.; Dutra, R. C. L. (2012). Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas. Polímeros: Ciência e Tecnologia, 22(5), 440-446. http://dx.doi.org/10.1590/S0104-14282012005000065.

8. Dutra, R. C. L., & Montenegro, A. M. C. (1987). Análise de aditivos em borrachas. In: Anais do I Seminário de Caracterização de Sistemas Poliméricos. Rio de Janeiro.

9. He, W., Shanks, R., & Amarasinghe, G. (2002). Analysis of additives in polymers by thin-layer chromatography coupled with Fourier transform-infrared microscopy. Vibrational Spectroscopy, 30(2), 147-156. http://dx.doi.org/10.1016/S0924-2031(02)00024-3.

10. Cserháti, T., Forgács, E., Candeias, M., Vilas-Boas, L., Bronze, R., & Spranger, I. (2000). Separation and tentative identification of the main pigment fraction of raisins by thin-layer chromatography-fourier transform infrared and high-performance liquid chromatography-ultraviolet detection. Journal of Chromatographic Science, 38(4), 145-150. http://dx.doi.org/10.1093/chromsci/38.4.145. PMid:10766480.

11. Liu, J., Zhou, F., Guo, R., Jiang, Y., Fan, X., He, A., Zhai,Y., Weng, S., Yang, Z., Xu,Y., Noda, I., Wu, J. (2014). Analysis of an alanine/arginine mixture by using TLC/FTIR technique. Journal of Spectroscopy, 2014, 1-4. http://dx.doi.org/10.1155/2014/925705.

12. American Society for Testing and Materials – ASTM. (2013). ASTM D3568-03: standard test methods for rubber: evaluation of EPDM (Ethylene Propylene Diene Terpolymers) including mixtures with oil. West Conshohocken. Reapproved 2009.

13. Wake, W. C., Tidd, B. K., & Loadman, M. J. R. (1983). Analysis of rubber and rubber-like polymer. 3rd ed. New York: Applied Science.

14. Bukhina, M. F., Morozov, Y. L., van de Ven, P. M., & Noordermeer, J. W. M. (2003). Mould fouling of EPDM rubber compounds. KGK Kautschuk Gummi Kunststoffe, 56(4), 172-183. Retrieved in 13 February 2015, from: http://www.kgk-rubberpoint.de/ai/resources/e907ea3cdb1.pdf

15. Wolfang, W. (1987). Tópicos de espectroscopia no infravermelho. São José dos Campos: ITA.
588371d27f8c9d0a0c8b4a9a polimeros Articles
Links & Downloads

Polímeros: Ciência e Tecnologia

Share this page
Page Sections