| 缓释复合肥料制备工艺研究 |
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| 引用本文： | 刘秉智.缓释复合肥料制备工艺研究[J].化工科技,2012,20(1):16-18. |
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| 作者姓名： | 刘秉智 |
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| 作者单位： | 渭南师范学院化学化工系,陕西渭南,714000 |
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| 基金项目： | 陕西省教育厅专项科研资助项目（20LOJK544）;渭南师范学院自然科学基金项目（10JKF011,JG201116）. |
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| 摘 要： | 研究了以改性淀粉与聚乙烯醇(PVA)为原料制备缓释复合肥料包膜料液的合成工艺,探索出其最佳配方:该料液w(固体)≈10%,m(交联剂):m(包膜料液)=6%,m(溶剂):m(包膜料液)=4%。用m(包膜料液):m(磷酸二铵)=6%包涂磷酸二铵制备的缓释复合肥料缓释性能良好,生产成本低廉,包膜材料可生物降解,环境污染小。
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| 关 键 词： | 复合肥 缓释肥料 磷酸二铵 聚乙烯醇 |
Preparation of encapsulated compound fertilizers of diammonium phosphate |
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| LIU Bing-zhi.Preparation of encapsulated compound fertilizers of diammonium phosphate[J].Science & Technology In Chemical Industry,2012,20(1):16-18. |
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| Authors: | LIU Bing-zhi |
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| Affiliation: | LIU Bing-zhi (Department of Chemistry and Chemical Engineering, Weinan Teachers College, Weinan , 714000,China) |
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| Abstract: | Synthesis process of encapsulating solution which prepared by modified starch and polyvinyl alcohol for slow-release compound fertilizers was researched. The optimal conditions are as follows： solids content of this type of encapsulating solution is 10 %, the mass ratio of cross-linklng agent to en- capsulating solution is 6 %, and the mass ratio of solvent to encapsulating solution is 4 %. The slow-re- lease compound fertilizers that prepared by diammonium phosphate using 6% encapsulating solution have the characteristics of good release performance,low product cost,biodegradable and environmen- friendly encapsulated material. |
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| Keywords: | Compound fertilizers Slow-release fertilizer Diammonium phosphate Polyvinyl alcohol |
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