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发明公开
CN106946633A 一种纤维素脂肪酸酯水溶性化肥微囊的制备方法 无效 - 撤回

一种纤维素脂肪酸酯水溶性化肥微囊的制备方法
摘要：
一种纤维素脂肪酸酯水溶性化肥微囊的制备方法，包括如下步骤：(1)先将水溶性肥料溶于阿拉伯胶溶液，得到水相；(2)再将机械活化纤维素酯溶于有机溶剂，得到油相；(3)将步骤(1)中得到的水相和步骤(2)得到的油相混合，加入表面活性剂，搅拌，制得微乳液；(4)在固定转速下，将步骤(3)得到的微乳液均匀滴入2％聚乙烯醇溶液中，然后置于室温下搅拌，再逐步升温；(5)继续搅拌40‑60min后，停止搅拌，抽滤，将所得滤渣干燥，即得到纤维素脂肪酸酯水溶性化肥微囊。本发明的方法得到的纤维素脂肪酸酯水溶性化肥微囊可有效防止肥料养分的流失，较好控制水溶性化肥的释放速度，提高肥料利用率，从而达到减少施肥次数，延长肥效期的效果。
摘要（英）：

A preparation method for a cellulose fatty acid ester water-soluble chemical fertilizer microcapsule includes the steps of: (1) dissolving a water-soluble fertilizer in Arabic gum solution to obtain a water phase; (2) dissolving mechanically activated cellulose ester in an organic solvent to obtain an oil phase; (3) mixing the water phase in the step (1) and the oil phase in the step (2), adding a surfactant, and stirring the mixture to prepare a micro-emulsion; (4) at constant rotation speed, uniformly dropwise adding the micro-emulsion to a 2% polyvinyl alcohol solution, and stirring the mixture at room temperature and stepwise increasing the temperature; and (5) continuously stirring the mixture for 40-60 min, stopping stirring, performing suction filtration and drying the filter residue to obtain the cellulose fatty acid ester water-soluble chemical fertilizer microcapsule. The cellulose fatty acid ester water-soluble chemical fertilizer microcapsule can effectively prevent loss of nutrients, controls releasing speed of the water-soluble chemical fertilizer well and increases utilization rate of the fertilizer, thereby reducing frequency of fertilization and prolonging effective period.

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