This research is a synthetic sponge rubber is reinforced with carbon from corn to find suitable conditions of reinforcement that affect the physical properties density with strength and sponge rubber mixing charcoal from corn cobs. A SHOR SCALE A DUROMETER
Found that the appearance of a sponge that has a very porous to harshest sponge swell is good and the density of activated charcoal from corn, the addition of powdered activated carbon from corn, 15% sponge is strong and growing trend. Based on the amount of coal dust fills the cob.