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  2. Superabsorbent polymer - Wikipedia

    en.wikipedia.org/wiki/Superabsorbent_polymer

    Water-absorbing polymers, which are classified as hydrogels when mixed, [3] absorb aqueous solutions through hydrogen bonding with water molecules. A SAP's ability to absorb water depends on the ionic concentration of the aqueous solution. In deionized and distilled water, a SAP may absorb 300 times its weight [4] (from 30 to 60 times its own ...

  3. Water crystal gel - Wikipedia

    en.wikipedia.org/wiki/Water_crystal_gel

    Hydrated water gel, or water beads. Water crystal gel or water beads or gel beads is any gel which absorbs and contains a large amount of water.Water gel is usually in spherical form and composed of a water-absorbing superabsorbent polymer (SAP, also known as slush powder in dry form) such as a polyacrylamide (frequently sodium polyacrylate).

  4. Polyacrylamide - Wikipedia

    en.wikipedia.org/wiki/Polyacrylamide

    Polyacrylamide (abbreviated as PAM or pAAM) is a polymer with the formula (-CH 2 CHCONH 2-). It has a linear-chain structure. PAM is highly water-absorbent, forming a soft gel when hydrated. In 2008, an estimated 750,000,000 kg were produced, mainly for water treatment and the paper and mineral industries. [1]

  5. Sodium polyacrylate - Wikipedia

    en.wikipedia.org/wiki/Sodium_polyacrylate

    Super-absorbent polymers (SAP) similar to sodium polyacrylate were developed in the 1960s by the U.S. Department of Agriculture. [3] Before the development of these substances, the best water absorbing materials were cellulosic or fiber-based like tissue paper, sponge, cotton, or fluff pulp.

  6. Hygroscopy - Wikipedia

    en.wikipedia.org/wiki/Hygroscopy

    Other polymers, such as polyethylene and polystyrene, do not normally absorb much moisture, but are able to carry significant moisture on their surface when exposed to liquid water. [33] Type-6 nylon (a polyamide) can absorb up to 9.5% of its weight in moisture. [34]

  7. Hydrogel - Wikipedia

    en.wikipedia.org/wiki/Hydrogel

    Water sustainability: Hydrogels have emerged as promising materials platforms for solar-powered water purification, [67] water disinfection, [68] and atmospheric water generator. [69] Disposable diapers where they absorb urine, or in sanitary napkins [25] Dressings for healing of burn or other hard-to-heal wounds.

  8. 2-Acrylamido-2-methylpropane sulfonic acid - Wikipedia

    en.wikipedia.org/wiki/2-Acrylamido-2-methyl...

    In addition, AMPS is absorbing water readily and also imparts enhanced water absorption and transport characteristics to polymers. [8] Solubility: AMPS is very soluble in water and dimethylformamide (DMF) and also shows limited solubility in most polar organic solvents. [9]

  9. Potassium polyacrylate - Wikipedia

    en.wikipedia.org/wiki/Potassium_polyacrylate

    It is composed of a set of polymeric chains, which are linked together chemically to become a water-insoluble matrix that gently attracts and holds water molecules. The immense size and weight of its molecular structure allows each potassium polyacrylate granule to absorb purified water of over 500 times its dry weight.

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