PRODUKSI KARET SIR 20CV MENGGUNAKAN FORMULA HIDRAZIN HIDRAT DAN AMMONIUM SULFAT SEBAGAI ADITIF

Afrizal Vachlepi

Abstract


The main product of Indonesia natural rubber is SIR 20. The quality improvement can be done by converting the production of natural rubber SIR 20 to SIR 20 constant viscosity (SIR 20CV). The production of natural rubber SIR 20CV need the stabilizing agents among other a mixture of hydrazine hydrate and ammonium sulfate. The research purpose was to find out and to study the formulation and dosage of the mixture hydrazine hydrate and ammonium sulfate on the production of constant viscosity rubber. This research used factorial completely randomized design with the treatment factor consist of percentage of mixture hydrazine hydrate-ammonium sulfate (treatment A), additive dosage (treatment B) and control (HNS and blank/without additive). The treatment A consists of 50%:50% (A1), 70%:30% (A2), and 30%:70% (A3). The treatment B consists of 0.05% (B1), 0.10% (B2), 0.15% (B3) and 0.20% (B4). Parameters were latex coagulation condition, dry rubber content, and technical quality (initial plasticity/Po, plasticity retention index/PRI, Mooney viscosity/MV, stability viscosity index/SVI, volatile content and ash content). The analysis of technical quality was compared with requirements of SNI 06-1903-2000 about SIR. The results showed that the use of mixed additives of hydrazine hydrate and ammonium sulfate had a significant effect on the parameter pH of latex coagulation, dry rubber content, plasticity, Mooney viscosity, and viscosity stability index of the rubber SIR 20CV. The best treatment was obtained by the treatment of A3B1, which is 30% hydrazine hydrate and 70% ammonium sulfate with a dosage of 0.05%, because could produce natural rubber SIR 20CV with grade CV-70 in accordance with SNI 06-1903-2000.


Keywords


ammonium sulfate, hydrazine hydrate, quality, SIR 20CV

Full Text:

PDF (Indonesian)

References


Abednego, J. (1981). Pengetahuan Lateks dalam Pedoman Kursus Pengawasan Standard Indonesia Rubber’, in. Jakarta.

Achmadi, S.S., Cifriadi, A., dan Hidayah, M.N. (2015). Redistilat asap cair dari cangkang kelapa sawit dan aplikasinya sebagai koagulan karet alam. Jurnal Penelitian Karet, 33(2), 183-192.

Daik, R., Bidol, S. and Abdullah, I. (2007). Effect of molecular weight on the droplet size and rheological properties of liquid natural rubber emulsion. Malaysian Polymer Journal, 2(1), 29-38.

Direktorat Jenderal Perkebunan. (2015). Statistik perkebunan indonesia 2014-2016. Jakarta.

Ekphon, A., Ninchuewong, T., Tirawanichakul, S., and Tirawanichakul, Y. (2013). Drying model, shrinkage and energy consumption evaluation of air dried sheet rubber drying system for small enterprise.Advanced Materials Research, 622–623, pp. 1135-1139. doi: 10.4028/www.scientific.net/AMR.622-623.1135.

George, P.J and Jacob, C. (2000). Natural rubber agromanagement and crop processing. Rubber Research Institute of India.

Khongchana, P., Tirawanichakul, S., Tirawanichakul, Y., and Woravutthikhunchai, S. (2007). Effect of drying strategies on quality of STR 20 block rubbers. Journal of Agricultural Technology, 3(2), 151-171.

Kumar, R.R., Hussain, S.N., and Philip, J. (2007). Measurement of dry rubber content of natural rubber latex with a capacitive transducer. Journal of Rubber Research, 10(1), 17-25.

Maspanger, D. (2008). Sifat fisik karet.In Makalah Kursus Teknologi Barang Jadi Karet. Bogor: Balai Penelitian Teknologi Karet, 75-76.

Montha, S., Suwandittakul, P., Poonsrisawat, A., Oungeun, P., and Kongkaew, C. (2016). Maillard reaction in natural rubber latex : characterization and physical properties of solid natural rubber.

Hindawi Publishing Corporation, 2016, 1-6. http://dx.doi.org/10.1155/2016/7807524

Ng, M. X., Tham, T. C., Ong, S. P., and Law, C. L. (2015). Drying kinetics of technical specified rubber. Information Processing in Agriculture. China Agricultural University, 2(1), 64-71. doi: 10.1016/j.inpa.2015.05.001.

Rahman, N., Nugraheni, D.I., dan Febriyanti, L. (2002). Reaksi penjenuhan ikatan rangkap karet alam dalam fasa lateks pekat. Jurnal Penelitian Karet, 20(1-3), 1-10.

Sa, E.G., Rahman, N., Hidrogenasi, P., and Fasa, D. (2004). Pengaruh hidrogenasi dalam fasa lateks pada karet alam hevea brasiliensis. Jurnal Teknologi Industri Pertanian, 14(3), 80-86.

Solichin, M., dan Immanuel, V. (1991). Kajian pembuatan sit angin yang viskositasnya dimantapkan. Buletin Perkaretan, 7(2), 94-100.

Solichin, M., dan Setiadi, T. (1992). Pengaruh penambahan hidroksilamin netral sulfat dan lama pemeraman terhadap mutu lum mangkok. Buletin Perkaretan, 8(1), 17-25.

Solichin, M. (1995). Pemantapan viskositas Mooney karet alam dengan natrium fenolat, natrium metabisulfit dan asetaldehida. Universitas Gadjah Mada.

Syarifa, L.F., Agustina, D.S., dan Nancy, C. (2013). Evaluasi pengolahan dan mutu bahan olah karet rakyat (bokar) di Sumatera Selatan. Jurnal Penelitian Karet, 31(2), 139-148.

Tham, T.C., Hii, C.L., Ong, S.P., Abdullah, L.C., and Law, C.L. (2014). Technical review on crumb rubber drying process and the potential of advanced drying technique. Agriculture and Agricultural Science Procedia. Elsevier Srl, 2, 26-32. doi: 10.1016/j.aaspro.2014.11.005.

Vachlepi, A., Suwardin, D., Purbaya, M., dan Hanifarianty, S. (2014). Application of hydrazine compound to produce constant viscosity rubber. Majalah Polimer Indonesia, 17(1), 1-5.

Vachlepi, A., dan Suwardin, D. (2015a). Karakteristik mutu karet alam SIR 20CV menggunakan bahan pemantap hidrazine pada suhu penyimpanan 60C. Jurnal Dinamika Penelitian Industri, 26(2), 85-94.

Vachlepi, A., dan Suwardin, D. (2015b). Penggunaan garam ammonium dalam produksi karet viskositas rendah dari lateks. Jurnal Penelitian Karet, 33(2), 193-202.

Vachlepi, A., dan Suwardin, D. (2016). Inhibisi korosi oleh hidroksilamin netral sulfat termodifikasi terhadap baja karbon. Jurnal Biopropal Industri, 7(2), 53-61.

Zheleva, D. (2013). An attempt for correlation between Mooney viscosity and rheological properties of filled rubber compounds. Journal of Chemical Technology and Metallurgy, 48(3), 241-246.




DOI: http://dx.doi.org/10.28959/jdpi.v29i1.3485

Refbacks

  • There are currently no refbacks.


Copyright (c) 2018 Jurnal Dinamika Penelitian Industri

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.