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Position: Home > Articles > Preparation and properties of biodegradable PBAT coated urea slow release fertilizer Phosphate & Compound Fertilizer 2014,29 (2) 10-12

可生物降解PBAT包膜尿素缓释肥料的制备与性能研究

作  者:
靳玄烨;刘燕军;陈立广;郭宝华
单  位:
清华大学化学工程系;防化研究院
关键词:
聚己二酸/对苯二甲酸丁二酯;包膜尿素;缓释肥料;生物降解
摘  要:
以可生物降解PBAT为包膜材料,通过循环流化床工艺制备一系列PBAT包膜尿素缓释肥料,并对制备工艺进行了优化;通过扫描电镜观察包膜肥料表面形态特征,分析缺陷形成原因;通过水中静置法测试PBAT包膜尿素缓释肥料的缓释性能,测定缓释曲线,样品的初期释放率为20%~50%,第28天的累积释放率为70%~90%。
译  名:
Preparation and properties of biodegradable PBAT coated urea slow release fertilizer
作  者:
JIN Xuan-ye;LIU Yan-jun;CHEN Li-guang;GUO Bao-hua;Department of Chemical Engineering,Tsinghua University;Research Institute of Chemical Defense;
关键词:
poly(butyleneadipate-co-terephthalate);;coated urea;;slow release fertilizer;;biodegradation
摘  要:
with biodegradable PBAT as coating materials,by circulating fluidized bed process forpreparing a series of PBAT coated urea fertilizer,and the preparation process is optimized to determinethe fogging agent concentration; By scanning electron microscopy,the surface morphology of coatedfertilizers is observed,and the causes are analyzed; Through standing water release properties,theslow-release performance of PBAT coated urea fertilizer is tested,the initial release rate of the samplesis 20%-50%,and the cumulative release rate in 28 days is 70%-90%.

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