Low molecular weight poly(acrylic acid)
Sodium polyacrylate water-absorbent polymer is a new type of functional polymer material widely developed and researched at home and abroad in recent years. It is a kind of strong hydrophilic polymer compound with a loose network structure and low cross-linking degree. Water absorption and water retention performance, non-toxic and odorless, widely used in medical and health, petrochemical and soil water retention.
Sodium polyacrylate has different uses because of its relative molecular weight.
Sodium polyacrylate (106~107) with high molecular weight is used as flocculant and super absorbent resin. Sodium polyacrylate is used as a flocculant in the following areas: natural water clarification, removal of phosphate in sewage, separation of red mud from alumina, and use as a soil amendment.
Medium relative molecular weight sodium polyacrylate (104～106) can be used as thickener and water retention agent,
low relative molecular weight sodium polyacrylate (103～104) can be used as dispersant and scale inhibitor, e.g. Low molecular weight poly(acrylic acid) as a salt scaling inhibitor in oilfield operations.
Ultra-relatively low molecular weight (700) The use of sodium polyacrylate has not yet been fully developed.
Sanitary napkins, which absorb water.
Water-based paint, play a dispersing role;
Textile printing and dyeing auxiliary, play the role of slurry dispersion;
Auxiliary of ceramic processing, which plays a dispersing role;
As a washing aid in detergents, it has a dispersion effect; anti-fouling redeposition effect and thickening effect;
Crystal mud, which can absorb water.