Synthesis of Superabsorbent Polymer based Glucomanan-Polyacrylate by Gamma Irradiation

Sri Mulijani, Sri Sugiarti, Erizal Erizal, Qory Hajrul Fajriani

Abstract


Materials with potential of   fast absorption   of water or liquid have emerged as very interesting objects for researches. Superabsorbent polymer is a crosslinked polymer which has ability to absorb water hundreds to thousands of times the dry weight because it has hydrophilic groups. Owing to this characteristic this polymer gets attention for many applications, one of these is diapers. Superabsorbent polymer was synthesized from the mixture of glucomannan-pottasium acrilyc-acrylamide solution by irradiation crosslinking with doses irradiation 10 kGy. It was found that SAP showed superswelling properties in water (~880 g/g) at short time (15 minutes) and in real urine has a good swelling ~110 g/g. Acrylamide was able to increase the swelling ratio in real urine. Therefore, it can be candidate as thin diapers with high sorption. The result of FTIR spectra confirmed  that the crosslinking occurs in the hydrogels and SEM images of hydrogels showed large numbers of pores from SEM examination.

Keywords: Superabsorbent polymer; Acrylic acid; Acrylamide; Glucomannan; Irradiation


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References


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