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首页> 外文期刊>Polymers for advanced technologies >Preparation of carboxymethyl cellulose‐g‐poly (acrylamide)/montmorillonite superabsorbent composite as a slow‐release urea fertilizer
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Preparation of carboxymethyl cellulose‐g‐poly (acrylamide)/montmorillonite superabsorbent composite as a slow‐release urea fertilizer

机译：羧甲基纤维素-G-聚（丙烯酰胺）/蒙脱石超吸收性复合材料的制备作为缓释尿素肥料

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> A superabsorbent composite was synthesized through free‐radical graft copolymerization of carboxymethyl cellulose, acrylamide, and montmorillonite by means of a crosslinker such as N , N ′‐methylenebisacrylamide and potassium persulfate as an initiator. The preparation mechanism was proposed, and the composite structures were confirmed by using Fourier transform infrared spectroscopy, X‐ray diffraction, thermal gravimetric analysis, and scanning electron microscope. The factors influencing the swelling capacity of the composite were determined to accomplish the highly swelling capacity. The composition (15?wt% carboxymethyl cellulose, 5.4?wt% montmorillonite, 82?wt% acrylamide, 0.07?wt% N , N ′‐methylenebisacrylamide, and 1.1?wt% potassium persulfate) exhibited high swelling capacity; it was selected to be loaded with urea fertilizer, and the release was investigated by measuring the conductivity. The results showed that the new controlled release system has good slow release properties.
机译： > 通过羧甲基纤维素，丙烯酰胺和蒙脱石的自由基接枝共聚合成超吸收性复合物，借助于交联剂如 n 那 n ' - 亚甲基异丙酰胺和过硫酸钾作为引发剂。提出了制备机理，通过使用傅里叶变换红外光谱，X射线衍射，热重分析和扫描电子显微镜来确认复合结构。确定影响复合材料膨胀能力的因素达到高膨胀能力。该组合物（15〜％羧甲基纤维素，5.4〜Wt％蒙脱石，82〜％丙烯酰胺，0.07〜wt％ n 那 n ' - 亚甲基异丙腈，1.1·wt％过硫酸钾）表现出高膨胀能力;选择用尿素肥料加载，通过测量导电性来研究释放。结果表明，新的控释系统具有良好的缓慢释放性能。

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