It’s called Ocean Baby, and its scientific name is: super absorbent resin.
A synthetic resin with hydrophilic groups that can absorb a large amount of water and swell while keeping the water from flowing out.
Such as starch-grafted acrylates, grafted acrylamide, highly substituted croscarmellose, croscarmellose-grafted acrylamide, cross-linked hydroxyethyl fiber Vegetable-grafted acrylamide polymers, etc., can generally absorb more than 100 times the volume of resin, with the highest water absorption rate reaching more than 1,000 times. They are generally used as medical materials, such as diapers, sanitary napkins, etc., and are also used in industry for plugging. Leaking material.
Uses
1. Medical and health care: sanitary napkins, changing pads, diapers, medical mattresses, absorbent paper, sustained-release drugs, ointments, water bags, etc.
2. Agriculture and gardening: soil water retention, seed coating, seed dressing and seedling cultivation.
3. Industry: water-stop expanding rubber, water-absorbing antifouling paint, anti-condensation paint, anti-static paint, oil field water blocking and oil-water separation, optical cables
Resistant tape and cable paste, concrete maintenance, etc.
4. Water absorbent for food industry, preservative for fruits and vegetables.
Extended information:
Classification according to the source of raw materials
With the continuous deepening of research on super absorbent resins, traditional super absorbent resins are divided into The classification methods of starch series, cellulose series and synthetic resin series can no longer meet the classification requirements. Therefore, Professor Zou Xinxi proposed six series of classifications based on his own research results.
Starch system: including grafted starch, carboxymethylated starch, phosphated starch, starch xanthate, etc.;
Cellulose system: including grafted cellulose, Carboxymethylated cellulose, hydroxypropylated cellulose, xanthate cellulose, etc.;
Synthetic resin system: including polyacrylates, polyvinyl alcohols, polyoxyalkanes, and inorganic polymers Objects, etc.;
Protein series: including soy protein, silk protein, gluten, etc.;
Other natural products and their derivatives: including pectin, alginic acid , chitosan, heparin, etc.;
Hydromic blends and complex systems: including super-absorbent resin blends, super-absorbent resin and inorganic gel complexes, high-absorbent resin Compounds of water-absorbent resin and organic matter, etc.
Classification according to the type of hydrophilic group
Anionic system: including carboxylic acid, sulfonic acid, phosphoric acid, etc.;
Cationic system: including Tertiary amines, quaternary amines, etc.;
Zwitterionic systems: including carboxylic acid-quaternary amines, sulfonic acid-tertiary amines;
Nonionic systems: including hydroxyl, Amide group, etc.;
A variety of hydrophilic group systems: including hydroxyl-carboxylic acid group, hydroxyl-carboxylic acid group-amide group, sulfonic acid group-carboxylic acid group, etc.
Baidu Encyclopedia-Super absorbent resin