淀粉基磷酸二氢铵缓释肥料的研制  

Study on the slow-releasing fertilizer starch ammonium dihydrogen phosphate

作　　者：刘秉智[1] 党民团[1] 

机构地区：[1]渭南师范学院化学化工系,陕西渭南714000

出　　处：《应用化工》2007年第9期936-937,946,共3页Applied Chemical Industry

摘　　要：研究了用改性淀粉与聚乙烯醇为原料制备磷酸二氢铵缓释肥料包膜料液的合成方法,探索出其最佳配方:该料液的固含量约10%,交联剂用量6%,溶剂用量4%。用该料液8%包涂磷酸二氢铵制备的磷酸二氢铵肥料缓释性能良好,生产成本低廉,包膜材料可生物降解,环境污染小。Film-coating emulsion for the slow-releasing fertilizer ammonium dihydrogen phosphate was prepared from modified starch and polyvlnyl alcohol. The optimum formulation were obtained as follows：the solid content of the emulsion is about 10%, the dosage of crosslinking agent is 6%, the dosage of solvent is 4%. The slow-releasing fertilizer was prepared by using 8% film-coating emulsion to coat ammonium dihydrogen phosphate. The slow-releasing property of this kind of fertilizer is good, the cost of product is low, the coating-film is biodegradable and low environmental pollution.

关 键 词：改性淀粉 聚乙烯醇 磷酸二氢铵 缓释肥料 

分 类 号：TQ445.9[化学工程—化学肥料工业]