The Investigation of the PAM / St-g-PAA /Bentonite Superabsorbent Composite in Model of Rain Garden
The polyacrylamide/starch-acrylic acid graft copolymer/bentonite composites with different concentrations of the bentonite and starch-acrylic acid graft copolymer were prepared by in-situ polymerization. The influence of the concentration of the bentonite and starch-acrylic acid graft copolymer on the water absorbency was investigated. The water absorbency of 115 g/g could be achieved with the composite composed of 50wt% bentonite, 17wt% starch-acrylic acid graft copolymer and 33wt% polyacrylamide. The excellent absorption and retention performance of the composite makes it potential to be applied in the model of Rain garden.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
W. S. Tong et al., "The Investigation of the PAM / St-g-PAA /Bentonite Superabsorbent Composite in Model of Rain Garden", Advanced Materials Research, Vols. 374-377, pp. 1405-1408, 2012