2006-11-29 13:45:47 · 3 answers · asked by Richard L 1 in Science & Mathematics ➔ Physics
Everything to be said about it you find here:
(Has something to do with diapers ....)
2006-11-29 14:41:19 · answer #1 · answered by Robert K 6 · 0⤊ 0⤋
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In general it is a polyacrylimide crystal that absorbs water. You can find them at any gardening store under different names such as Hydrogel or Water Crystals. I run a small nursery and we buy ours from A.M. Leonard company. One jug goes a long way. I'm not sure of the exact chemistry, but the polymer that the crystal is made out of probably has a highly hydrophillic properties. In crystal form the crystal lattice expands and traps water within it. So in practice you just put the crystals in a bucket and put water in it until it stops absorbing. It will have the consistency of wet oatmeal when it is done, and has a gel like feel.
2016-04-09 01:24:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Hydrogel is a network of polymer chains that are water-soluble, sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are superabsorbent (they can contain over 99% water) natural or synthetic polymers. Hydrogels possess also a degree of flexibility very similar to natural tissue, due to their significant water content.
Common uses for hydrogel are:
In disposable diapers where they "capture" urine, or in sanitary towels
Contact lenses (silicone hydrogels, polyacrylamides)
medical electrodes using hydrogels composed of cross linked (polyethylene oxide, polyAMPS and polyvinylpyrrolidone)
Cell Culture and bioproduction PuraMatrix Nanofiber Hydrogels
Other, less common uses include:
Breast implants
Granules for holding soil moisture in arid areas
Dressings for healing of burn or other hard-to-heal wounds
reservoirs in topical drug delivery; particularly ionic drugs, delivered by iontophoresis (see ion exchange resin)
Common ingredients are eg. polyvinyl alcohol, sodium polyacrylate, acrylate polymers and copolymers with an abundance of hydrophilic groups.
reff:http://en.wikipedia.org/wiki/Hydrogel
2006-11-29 14:41:42 · answer #3 · answered by santhana k 3 · 2⤊ 0⤋
This Site Might Help You.
RE:
What is Hydrogel?
2015-08-13 05:33:55 · answer #4 · answered by Terry 1 · 0⤊ 0⤋
sounds like a remedy for dry skin or skin problems like eczema.
2006-11-29 13:49:11 · answer #5 · answered by ? 6 · 0⤊ 1⤋