期刊
RADIATION PHYSICS AND CHEMISTRY
卷 72, 期 5, 页码 635-638出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2004.03.090
关键词
CMC-Na; hydrogel; irradiation; low dose; slight crosslinking
The slight radiation-crosslinked CMC-Na as a substitute for hydrogel was prepared by gamma irradiation below gelation dose. The effects of various parameters such as absorbed dose, concentration of inorganic salts, pH, swelling temperature and swelling time on the swelling ratio in water were investigated in detail. This kind of slight crosslinked CMC-Na showed good water absorption below 60degreesC, whereas, it became solution when heated up to 70degreesC. Such CMC-Na gel is different from the true gel that is insoluble in boiled water; nevertheless, it can be used as hydrogel at room temperature and produced at low dose. Due to its low cost, it might be useful for its application in agriculture or others. (C) 2004 Elsevier Ltd. All rights reserved.
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