Peningkatan ketahanan oksidasi karet alam melalui pengikatan antioksidan 4-aminodifenilamina secara kimia

Hani Handayani, Dadi R. Maspanger, Cynthia L Radiman


Natural rubber is very important in supporting the Indonesian economy from non-oil sector. However, natural rubber is not resistant to oxidation. Various attempts have been made to overcome the weaknesses; one of them is the addition of antioxidants as additives in the manufacture of rubber goods. However, it has the disadvantage of mechanical technique, including antioxidant blooming, resulting in failed products and decrease in antioxidants ability. The aim of this research is to improve the resistance of natural rubber from oxidation through the chemically-bound antioxidant into epoxidized latex. Fresh latex was deproteinized using 0.06 phr papain. Latex was epoxidized using formic acid and hydrogen peroxide at 70°C with stirring speed of 700 rpm for 3 hours. Then the 4-Aminodiphenylamine (4-ADPA) antioxidant was added with three variations mole percent of 4-ADPA between 0.025 to 0.1 mol/100 grams of rubber, and four variations in temperature were applied (between 27-80°C). The results showed that the optimum condition for the binding was at 27°C at a dose of antioxidants as much as 0.1 mol/100 grams of rubber. The analysis of FTIR spectra revealed that the binding of 4-ADPA into the epoxidized latex was as much as 1.93 phr. The Rheometer curve analysis showed that the natural rubber bound 4-ADPA was more resistant to ageing based on the value of R300.

Keywords: latex, antioxidant, epoxidation, 4-ADPA, natural rubber oxidation.

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Barra, G. M., Crespo, J. S., Bertolino, J. R., Soldi, V., & Pires, A. T. N. (1999). Maleic anhydride grafting on EPDM: qualitative and quantitative determination. Journal of the Brazilian Chemical Society, 10(1), 31-34,

Chakraborty, S., Kar, S., Ameta, R., Dasgupta, S., & Mukhopadhyay, R. (2010). Quantitative application of FTIR in rubber. Rubber World: The Technical Service Magazine for The Rubber Industry, 241(4): 33-39.

Deptan. (2016). Basis Data Statistik Pertanian. Diakses tanggal 26 September 2016.

Faturrahman, M. I., Handayani, H., & Kuncoro, I. (2011). Pengembangan modifikasi karet alam tahan minyak/pelumas. Laporan akhir Kerjasama Penelitian. Pusat Penelitian Karet, Bogor.

Khang, T. H., & Ariff, Z. M. (2011). Vulcanization kinetics study of natural rubber compounds having different formulation variables. Journal of Thermal Analysis and Calorimetry, 109(3), 1545-1553,

Klinpituksa, P., Hamad, A., Nakason, C., & Kaesaman, A. (2011). Natural rubber bound-4-aminodiphenylamine antioxidant for rubber formulation improvement. Science Journal Ubon Ratchathani University, 2(1), 66-71.

Phinyocheep, P., Phetphaisit, C. W., Derouet, D., Campistron, I., & Brosse, J. C. (2005). Chemical degradation of epoxidized natural rubber using periodic acid: Preparation of epoxidized liquid natural rubber. Journal of applied polymer science, 95(1), 6-15,

Phinyocheep, P. & Boonjairaak, K. (2006). Investigation on hydrogenation and epoxidation of natural rubber in latex stage. Department of Chemistry, Faculty of Science, Mahidol University, Bangkok.

Phinyocheep, P. (2014). Chemical modification of natural rubber for improved performance. In S. Kohjiya & Y. Ikeda (Eds.). Chemistry, manufacture and applications of natural rubber (pp. 68-110). Cambridge, United Kingdom: Woodhead Publishing.

Wibowo, T. Y., Rusmandana, B., & Astuti, A. (2014). Degradasi cincin oksiran dari epoksi asam oleat dalam suatu sistem reaksi katalis cair. Jurnal Teknologi Pertanian, 14 (1), 29-34.



Copyright (c) 2016 Hani Handayani, Dadi R. Maspanger, Cynthia L. Radiman

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