EFFECT OF AGAR AND KAPPA-CARRAGEENAN ON THERMAL AND MECHANICAL PROPERTIES OF THERMO PLASTIC STARCH (TPS)

Akbar Hanif Dawam Abdullah (Research Unit for Clean Technology- Indonesian Institute of Sciences, Kampus LIPI Gd. 50, Jl. Cisitu-Sangkuriang, Bandung, 40135)
Putri Putih Puspa Asri (Research Unit for Clean Technology- Indonesian Institute of Sciences, Kampus LIPI Gd. 50, Jl. Cisitu-Sangkuriang, Bandung, 40135)
Rossy Choerun Nissa (Research Unit for Clean Technology- Indonesian Institute of Sciences, Kampus LIPI Gd. 50, Jl. Cisitu-Sangkuriang, Bandung, 40135)
Dina Fransiska (Research Center for Marine and Fisheries Product, Processing and Biotechnology, Ministry of Marine Affairs and Fisheries Republic of Indonesia Jl. KS Tubun Petamburan VI, Tanah Abang, Jakarta Pusat, 10260)
Nurhayati Nurhayati (Research Center for Marine and Fisheries Product, Processing and Biotechnology, Ministry of Marine Affairs and Fisheries Republic of Indonesia Jl. KS Tubun Petamburan VI, Tanah Abang, Jakarta Pusat, 10260)
Agusman Agusman (Research Unit for Clean Technology- Indonesian Institute of Sciences, Kampus LIPI Gd. 50, Jl. Cisitu-Sangkuriang, Bandung, 40135)
Hari Eko Irianto (Research Center for Marine and Fisheries Product, Processing and Biotechnology, Ministry of Marine Affairs and Fisheries Republic of Indonesia Jl. KS Tubun Petamburan VI, Tanah Abang, Jakarta Pusat, 10260)
Panji Priambudi (Research Center for Marine and Fisheries Product, Processing and Biotechnology, Ministry of Marine Affairs and Fisheries Republic of Indonesia Jl. KS Tubun Petamburan VI, Tanah Abang, Jakarta Pusat, 10260)
Sri Marliah (Research Unit for Clean Technology- Indonesian Institute of Sciences, Kampus LIPI Gd. 50, Jl. Cisitu-Sangkuriang, Bandung, 40135)

Jurnal Sains Materi Indonesia
Vol 22, No 1: OCTOBER 2020

Effect of Agar and kappa-Carrageenan on Thermal and Mechanical Properties of Thermo Plastic Starch (TPS) Thermoplastic starch needs to be blend with other materials because of its limited properties. In order to gain the desired properties, the interaction between the added component (filler, plasticizer, second polymer, etc) must be concerned as it can affect the performances of the final product. Thermoplastic starch has been successfully made with mixing and compression molding with the addition of agar and kappa-carrageenan. The effect of the added material has been studied with FTIR, Tensile, DSC, and TGA to investigate their mechanical and thermal properties. The FTIR spectrum has shown the shifting around the methyl group (C-H), a carboxyl group (C-O), and a hydroxyl group (O-H). Thermal analysis results presented different patterns in melting and degradation behavior. The tensile strength value did not show significant improvement with the presence of agar and kappa-carrageenan. It is shown that the addition of agar and kappa-carrageenan affects thermal behavior but does not significantly impact the mechanical properties.