控释肥包衣剂的制备及理化性质研究  

Studies on Preparation and Physico-chemical Properties of Coating-agent for Controlled Release Fertilizer

作　　者：刘英[1] 熊海蓉[2] 文祝友[3] 熊远福[1] 李霞[1] 刘俊[1] 

机构地区：[1]湖南农业大学理学院,长沙410128 [2]湖南农业大学分析测试中心,长沙410128 [3]湖南农业大学动物科技学院,长沙410128

出　　处：《中国农学通报》2013年第21期98-103,共6页Chinese Agricultural Science Bulletin

基　　金：农业部公益性行业(农业)科研专项"主要粮食作物一次性施肥技术研究与示范"(201303103);国家"863"项目"纳米肥料关键技术研究"(2001AA218041);湖南省科技厅计划项目"肥料控释包衣剂的创制及控释性能研究"(2010FJ6022)

摘　　要：为了获得控释肥包衣剂的制备条件、探明其理化性质,以2种树脂为成膜材料,探讨了成膜材料复合比、成膜材料用量、增塑剂用量、乳化剂用量等单因素对控释肥包衣剂制备效果的影响,运用正交试验L9(34)确定了控释肥包衣剂制备的最佳条件;并对其pH、粘度、成膜时间、成膜性、衣膜水溶性、包衣均匀度、包衣脱落率等理化性质进行了测定。结果表明,控释肥包衣剂的最佳制备条件:树脂JZ与BZ复合比1:1.5,成膜材料用量12%,增塑剂用量0.8%,乳化剂用量1.0%,色素用量0.08%,乙酸乙酯用量86.12%。理化性质测定结果显示:pH5.21,粘度为21.1MPa/s,成膜性良好,衣膜不溶于水,成膜时间为6min,包衣均匀度95%,包衣脱落率<8%,表明所制备的控释肥包衣剂理化性质良好。To obtain the preparation conditions and explore the physico-chemical properties of coating-agent for controlled release fertilizer, the single factor tests of the composite ratio of film-forming materials, the amount of film-forming materials, plasticizer, emulsifier and pigment were made with two resins as the film-forming materials, and the optimal preparation conditions of coating-agent for controlled-fertilizer were determined by orthogonal test L9（34）. The physico-chemical properties of the pH, viscosity, film-forming time, film-forming properties, water solubility of coated film, coating uniformity, coating-off rate were measured. The results showed that, the optimal preparation conditions were as follows：the composite ratio （JZ：BZ） was 1：1.5, amount of film-forming materials was 12%, plasticizer was 0.8%, emulsifier was 1.0%, pigment was 0.08% and solvent was 86.12%. Test results of physico-chemical properties showed that, the pH was 5.21, viscosity was 21.1 MPa/s, the film was good and indissolvable in water, the film-forming time was 6 min, coating uniformity was 95%, coating-off rate was less than 8%, which indicated that the coating-agent for controlled release fertilizer had good physico-chemical properties.

关 键 词：肥料 控释肥 控释肥包衣剂 制备方法 理化性质 

分 类 号：TQ449.1[化学工程—化学肥料工业]