The project studies the ability to withstand the pull of bioplastics made from the flesh of the
tamarind seeds and fruit seeds. Objective To study the production of bioplastics in the flesh of fruits, seeds and tamarind seeds have the ability to withstand tensile forces. The starch from the flesh of the tamarind seeds and fruit seeds mixed with rubber, copper (II) carbonate, ammonia concentration. And a solution of sulfuric acid diluted to new substances by the ratio between the meat of seeds per timber is 1: 1 and 1: 2 and then dried at 45 ° C for 36 hours be cut to size. 5x6 cm, then put to the test by hanging scales, tensile springs and weight gain by sandbags. The results showed that bioplastics from the flesh of the tamarind seeds have the ability to withstand high tensile strength than the flesh of the fruit seeds. The rubber will increase the ability to withstand higher tensile strength.
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