Abstract：Currently, the studies of Super Absorbent Resins (SAR) are focused on homopolymers. But with their development, the defects of some products have gradually cropped up, such as high cost, low strength, slow water-absorption rate, insufficient amount of water-absorption, poor salt-tolerant performance. So people have to use copolymerization or graft copolymerization of two or more monomers or to add cheap fillers to improve the comprehensive performance of SAR and reduce the production costs. In this study, a salt-tolerant super absorbent resin was obtained by crosslinking copolymerization, using acrylicacid, acrylamide, sodium alginate and kaolin. Aqueous solution polymerization method was used for improving properties of super absorbent resin, which would be affected by the amount of crosslinking agent, initiator, kaolin, acrylamide and drying condition, and so on. It is shown that the water absorption rate can reach 895g/g, and the salt absorption rate can reach 85g/g. Super absorbents were also synthesized by copolymerization of acrylic acid, acrylamide, sodium alginate and kaolin, to improve the absorbency properties. The results show that with K2S2O8 as the initiator, the dosage of 0.8%~1.2%, the temperature of 65~75℃, the neutralization degree of acrylic acid of 60%, the reaction time of 4 hours, good absorbency properties are obtained. When the neutralization degree of acrylic acid, the temperature, the reaction time, the monomer concentration and the dosage of crosslinker are appropriately adjusted, the anti-ultraviolet properties are also
2010, Vol. 28 
