| 초록 |
Superabsorbent materials derived from synthetic polymers can cause various environmental problems. In this study, eco-friendly superabsorbent materials were prepared from a mixture of carboxymethyl cellulose (CMC) as a raw material and different concentrations of citric acid(CA) as a cross linking agent through electron beam irradiation (EBI). The results showed that the 10 wt% CMC/2, 4wt% CA sample obtained using 20 kGy EBI showed the highest gel fraction value of over 95% and the highest swelling degree of around 7000%. In addition, the water retention of the swollen 10% CMC/2% CA gel decreased steadily to around 63% of the initial absorbed water during a period of 7 h, and then remained at around 60%. |
