Chemical modification had a major effect on the mechanical properties. 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. A thin sheet of plastic (plastic film) was obtained as a result that have been tested mechanically to obtain the best condition for the formulation of starch-cellulose 8.5:1.5 (g/g).
Sorghum stalk could be expected to affect the mechanical and physical properties of bioplastics. The analyzed variables were starch and cellulose seaweed Eucheuma spinossum and the addition of variation of filler. Solid-liquid matrix transition should be far over the operating temperature of gelatinization and extracted at 95 oC in order to avoid the loss of conductivity. This study evaluated the feasibility of bioplastics production by various ratio of sorghum starch and cellulose from red seaweed Eucheuma spinossum, and the use of glycerol as plasticizer and sorghum stalks as filler.
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