M. Romli
Agroindustrial Technology Department, Bogor Agricultural University, PO Box 220 Bogor 16002, Indonesia

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The Integration of Cleaner Production Indicators on the Environmental Performance Measurement System for the Indonesian Natural Rubber Industry Hasibuan, Sawarni; Gumbira-Sa’id, E.; Eriyatno, Eriyatno; Saillah, Illah; Honggokusumo, Suharto; Romli, M.
International Journal on Advanced Science, Engineering and Information Technology Vol 3, No 2 (2013)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

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Abstract

This study aims to identify the priority of the cleaner production implementation and integrate it in the design of a comprehensive environmental performance measurement system for natural rubber industry in Indonesia. Prioritizing the cleaner production on the production process of natural rubber is based on the case of 10 Indonesian crumb rubber companies using the Analytical Hierarchy Process. The comprehensive environmental performance measurement system in natural rubber industry, i.e. in crumb rubber industry, starts from the selection of key environmental performance indicators (KEPI) using the fuzzy independent preference evaluation method. The environmental performance measurement model is developed to assist users in evaluating the comprehensive environmental performance and condition of the key indicators. The weighting for each of the KEPI is performed by means of the expert choice software. The environmental performance measurement model is designed in the form of a environmental scorecard with traffic light facilities which can provide recommendations based on the performance achievement status of each KEPI. From the results of the model verification in the case of crumb rubber industry, several indicator statuses were found "not good", i.e. on the index of raw materials, solid waste load, water conservation, energy conservation, and environmental innovation indicators. The environmental performance ranking model is designed to evaluate the comprehensive environmental performance in different companies or at different assessment periods.
USING OF COMPATIBILIZER FOR IMPROVE MORPHOLOGiCAL PHYSICAL AND MECHANICAL PROPERTIES OF BIODEGRADABLE PLASTIC FROM THERMOPLASTIC-STRACH-POLYETYLENE BLENDS ., Waryat; Romli, M.; Suryani, A.; Yuliasih, I.; Johan, S.
Jurnal Sains Materi Indonesia Vol 14, No 3 (2013): April 2013
Publisher : BATAN

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Abstract

Plastics as packaging material is very likely and used many time. However, plastics waste can pollute environment because plastic difficult to biodegrade by microorganism. Effort to reduce dependent plastic is develop plastic that environment friendly from renewable resources by blending method. Problems encountered in the manufacture of biodegradable plastic are not compatible between hydrophilic/polar and hydrophobic/non-polar materials. To improve the compatibility between the twomaterial blend were added materials such as compatibilizer. The purpose of this study was to determine the effect of compatibilizer on the physical and mechanical properties of biodegradable plastics made from thermoplastic starch (TPS) and Linear Low Density PolyEthylene (LLDPE) blend. This study consited two steps, namely preparation of thermoplastic starch, and manufacturing process of biodegradable plastic. The plastic properties observed included morphological structure, melt flow rate, density, temperature melting, and mechanical properties. Morphological structure of biodegradable plastic become compatible and homogeneous with the using of compatibilizer with the marked spread of TPS into the polymer matrix. Compatibilizer is able to mediate between two materials which have characteristics different that is LLDPE (hydrophobic) and TPS (hydrophilic). Using of a compatibilizer made biodegradable plastic more compatible, homogeneous and good mechanical properties. Compatibilizer can improve surface adhesivitas between LLDPE and TPS blend. The presence of MA-g-LLDPE resulted greater physical and mechanical properties of biodegradabel plastic than without compatibilizer.Keywords: Compatibilizer, Thermoplastic starch, LLDPE, Biodegradable plastic
PENGGUNAAN COMPATIBILIZER UNTUK MENINGKATKAN KARAKTERISTIK MORFOLOGI, FISIK DAN MEKANIK PLASTIK BIODEGRADABEL BERBAHAN BAKU PATI TERMOPLASTIK-LLDPE Waryat, Waryat; Romli, M.; Suryani, A; Yuliasih, I; Johan, S
Jurnal Sains Materi Indonesia Vol 14, No 3: APRIL 2013
Publisher : BATAN

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Abstract

PENGGUNAAN COMPATIBILIZER UNTUK MENINGKATKAN KARAKTERISTIK MORFOLOGI, FISIK DAN MEKANIK PLASTIK BIODEGRADABEL BERBAHAN BAKU PATI TERMOPLASTIK-LLDPE. Plastik sebagai kemasan suatu produk sudah banyak dipakai dan digunakan dalamkurunwaktu lama.Namun, limbah plastik tersebut dapatmenimbulkan pencemaran lingkungan dikarenakan plastik sulit untuk terdegradasi olehmikroorganisme. Usaha untukmengurangi ketergantungan terhadap plastik salah satunya adanya penggunaan plastik ramah lingkungan dari bahan baku yang dapat diperbaruhi dengan metode blending. Permasalahan yang dihadapi dalampembuatan plastik biodegradabel berbahan baku campuran antara bahan alami dan sintetis adalah tidak kompetibel antara kedua bahan tersebut karena bahan alami bersifat hidrofilik/polar dan bahan sintetis bersifat hidrofobik/non polar. Untuk meningkatkan kompatibilitas antara kedua campuran itu perlu bahan ditambahkan seperti compatibilizer. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan compatibilizer terhadap sifat fisik danmekanik plastik biodegradabel berbahan baku campuran pati termoplastik dan Linear Low Density PolyEthylene (LLDPE). Penelitian ini dibagimenjadi dua tahap yaitu pembuatan pati termoplastik dan pembuatan plastik biodegradabel. Parameter yang diamati adalah morfologi permukaan plastik, kecepatan alir, densitas, titik leleh dan sifat mekanik. Struktur morfologi permukaan plastik biodegradabel LLDPE menjadi lebih kompatibel dan homogen dengan penggunaan compatibilizer dengan ditandai menyebarnya pati termoplastik (TPS) ke matriks polimer. Compatibilizer berperan sebagai penghubung bahan yang berbeda karakteristik antara LLDPE yang bersifat hidrofobik dan TPS yang bersifat hidrofilik. Penggunaan compatibilizermenjadikan plastik biodegradabel lebih kompatibel dan homogen serta dapat meningkatkan sifat fisik dan mekanik. Compatibilizer mampu meningkatkan adhesivitas permurkaan antara LLDPE dan TPS. Hal tersebut ditandai dengan kecenderungan meningkatnya karakteristik fisik dan mekanik plastik biodegrdabel dengan meningkatnya pemberian compatibilizer.