Gel ice pack

Gel ice pack also called cold pack, is the substitute product for the traditional ice bag.

It can be used to:

  • lower the body’s temperature;
  • transport the medicine, food, flower;
  • deal with the emergency hurt pain on sports injuries.



Different from traditional ice bags, gel ice packs have become increasingly popular.

Advantages of Gel Ice Pack

  • Soft feel and nice appearance;
  • Effectively curb the breeding of bacteria;
  • More effective. (Its specific heat is 3-4 times than ice’s)



What chemical is in ice packs?

It’s Sodium polyacrylate.

sodium polyacrylate

As a type of superabsorbent polymers, sodium polyacrylate can absorb plenty of water and become a gel form.

One-gram sodium polyacrylate can absorb 300-1000 grams of pure water. In other words, it’s enough to contain 1 gram (or less)  sodium polyacrylate for each gel ice pack.

Advantages of Sodium polyacrylate

  • high specific heat capacity;
  • low cost (for each gel ice pack) ;
  • non-toxic & environment friendly;



Other applications of sodium polyacrylate

Except for gel ice pack,  it can be used in every aspect of our life:

  • thermal insulation material (ice towels, ice pillows…);
  • absorbent material (such as in paper diapers, sanitary napkins, nursing pads…);
  • water blocking material (such as inflatable sandbags, waterproof for cable…);
  • expanding material (inflatable toy).
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