期刊
JOURNAL OF POLYMER RESEARCH
卷 16, 期 6, 页码 655-665出版社
SPRINGER
DOI: 10.1007/s10965-009-9270-2
关键词
Agar; Acrylic acid; Hydrogel; Swelling behavior; Potassium nitrate
In this investigation a new type of superabsorbent hydrogel based on agar was prepared, and the effect of the feed ratio of some components (acrylicacid, MBA, APS and agar) on the swelling capacity of the hydrogel was systematically studied. Maximum water absorbency of the optimized final product was found to be 1,100g/g in distilled water. The structure of the hydrogel was characterized by FT-IR method and morphology of the samples was examined by scanning electron microscopy (SEM). Swelling properties of optimized hydrogel sample in different swelling mediums were investigated. The optimum hydrogel were also loaded with potassium nitrate and its potential for controlled release of potassium was investigated by measuring conductivity in various conditions.
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