Polymer Gel

Definition - What does Polymer Gel mean?

Polymer gels consist of a three dimensional cross-linked polymer network inflated with a solvent such as water, which is the reason why these gels are also referred as “hydrogel.” They have the ability to reversibly swell or shrink (up to 1000 times in volume) due to small changes in their environment (pH, temperature or electric field).

Corrosionpedia explains Polymer Gel

The most common types of polymer gels widely used in industry are:

  • Poly vinyl alcohol gel (PVA)
  • Poly acrylic acid (PAA)
  • Poly acrylonitrile (PAN)

These gels find applications in the following industries:

  • Robotics (artificial muscles and robotic actuators)
  • Chemical manufacturing
  • Petrochemicals
  • Paints and coatings

The polymer gels are micro sized gel fibers that can contract in milliseconds, whereas thick polymer layers require minutes to react (up to two hours or even days). They have high strength and can deliver large forces for their size.

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