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Special Characteristics Of Corn Starch

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Special Characteristics Of Corn Starch

November 21, 2021
Latest company case about Special Characteristics Of Corn Starch

There is a strange characteristic of corn starch with water: it will harden by rapid impact, but it will not be affected by slow impact. The corn starch and water are mixed and stirred in a weight ratio of about 3:2, and the amount of water is increased or decreased as the case may be. The shear thickening fluid, called "o-cleavable" oobleck, is a non-Newtonian fluid.

Demonstration method

1. Pour out about 5mL of this finished product into the palm of your hand. Use your hands to pry the original liquid process into a pellet-shaped solid ball. After about half a second, the ball will quickly melt. "When it comes back to the liquid state, it can be repeated to demonstrate this special property.

2. Put about 50~100mL of finished product in the disposable paper cup. Use disposable paper cup or plastic cup for light weight and convenient operation. Gently tilt the paper cup to the participants to watch the liquid finished product inside the paper cup. Participants can be impressed by the quick action of the finished product in the paper cup to the audience.

3. Place about 50~100mL of finished product in the disposable paper cup. Gently tilt the paper cup to the participant to watch the liquid product inside the paper cup, then reverse the disposable cup but quickly shake it up and down for a distance. Back to the right, at this time, because the non-Newtonian fluid produces strength against the rapid shear changes, the finished product in the cup does not spill.

4. Place a few liters of finished product in a large shallow basin. Participants can quickly run through the finished product in the shallow basin without sinking. If the walking speed is slow, it will sink into the finished product.

5. Place 50~100mL of the finished product on the sound horn diaphragm of the upward facing sound, and activate the low-frequency sound wave vibration of a certain volume and the distortion molding change of the observable process product.

 

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