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.
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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