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What Makes Kinetic Sand Work?

Published in Science of Materials 2 mins read

Kinetic Sand's unique properties come from the polymer chains within silicone oil coating each sand particle.

Here's a more detailed look at how it works:

How Kinetic Sand Achieves Its Flow and Stickiness

  • Silicone Oil Coating: Each grain of sand is coated with silicone oil.
  • Polymer Chains: The silicone oil contains polymer chains.
  • Adhesion: These polymer chains create an attraction that makes the sand particles stick to each other. This allows you to mold and shape Kinetic Sand.
  • Limited Surface Adhesion: While the sand sticks to itself, the silicone oil coating prevents it from sticking to other surfaces.
  • Temporary Shapes: The sand holds its shape temporarily, because the attraction between grains is limited and will eventually lose the molded shape over time.

Here's a summary of these points:

Feature Description
Silicone Oil Coating Each sand particle is coated with silicone oil.
Polymer Chains The silicone oil contains polymer chains.
Self-Adhesion Polymer chains cause sand particles to stick together.
Limited Surface Adhesion Sand sticks to itself, not to other surfaces.
Temporary Shapes Molded shapes are not permanent.

In essence, the silicone oil with its polymer chains creates a unique bond between the sand particles, allowing Kinetic Sand to be molded and shaped, while preventing it from sticking to other surfaces.

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