A Study of applying water super absorbent polymers as moisturizing material for the sand soil in Hoa tien commune, Hoa vang district, Danang city

Abstract

Water super absorbent polymers (WSAP) are prepared by grafting acrylic acid on cassava starch them crosslinking it with epiclohydrin. The result is that the product has water absorbing capacity 352 times higher compared with the original amount. The physiochemical features of the cassava starch and water superabsorbent polymers are evaluated by image SEM and spectrum IR. The water super absorbent polymer material is applied to the samples of sand soil found in Hoatien commune, Hoavang district, Danang city. The results show the use of WSAP can increase the soil’s moisture significantly. This moisture absorbing substance can be used for agriculture at the depth of 10-20 cm from the surface, with the amount 1g WSAP for 1.5 kg of sand soil. After 5 days, the moisture still remains at 10-12%.