Yuli, Darni and Febrina, Yohana Dewi and Lia, Lismeri (2017) Modification of Sorghum Starch-Cellulose Bioplastics with Sorghum Stalks Filler. Modification of Sorghum Starch-Cellulose Bioplastics with Sorghum Stalks Filler, 12 (1). pp. 22-30. ISSN 1412-5064
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Abstract
This study evaluated the modification of bioplastics production by various ratios of sorghum starch and cellulose from red seaweed eucheuma spinossum, and the use of glycerol as plasticizer and sorghum stalks as filler. Solid-liquid matrix transition should be far over the operating temperature of gelatinization and extracted at 95oC in order to avoid the loss of conductivity. The analyzed variables were starch and cellulose seaweed eucheuma spinossum and the addition of variation of filler. Sorghum stalk addition expected to affect the mechanical and physical properties of bioplastics. A thin sheet of plastic (plastic film) was obtained as results that have been tested mechanically to obtain the best condition for the formulation of starch-cellulose 8.5:1.5 (g/g). From the result of morphological studies, the fillers in the mixture composites were more randomly in each product and the addition of filler can increase mechanical properties of bioplastics. Chemical modification had a major effect on the mechanical properties. The phenomena of degradation and thermo-plasticization were visible by chemical changes observed in FTIR spectrum results. Keywords: bioplastics, sorghums starch, cellulose, filler.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Kimia |
| Depositing User: | LIA LISMER |
| Date Deposited: | 28 Sep 2017 02:17 |
| Last Modified: | 28 Sep 2017 02:17 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/3964 |
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