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P(AA-AM)/SiO_2复合保水材料的制备及其在保水缓释肥中应用

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成果类型:
期刊论文
论文标题(英文):
Preparation of P(AA-AM)/SiO_2 composite water-retaining material and its application in water-retaining slow-release fertilizer
作者:
曹兵;王孟;杨凯劲;倪小会;王学霞;...
通讯作者:
Chen, Yanhua(yhchen55@126.com)
作者机构:
[曹兵; 倪小会; 王学霞; 邹国元; 陈延华] Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Science, Beijing
100097, China
Beijing Engineering Technology Research Center for Slow/Controlled-Release Fertilizer, Beijing
[王孟; 杨凯劲] School of Nuclear Science and Technology, Nanhua University, Hengyang
421001, China
通讯机构:
Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Science, Beijing, China
语种:
中文
关键词:
肥料;吸水率;保水材料;保水缓释肥;释放期
关键词(英文):
Acrylic monomers;Agricultural robots;Amides;Ascorbic acid;Carboxylic acids;Coatings;Composite materials;Cultivation;Deionized water;Efficiency;Food supply;Fourier transform infrared spectroscopy;Morphology;Nitrogen fertilizers;Potassium compounds;Scanning electron microscopy;Silica;Silicon;Silicon oxides;SiO2 nanoparticles;Sodium chloride;Sodium sulfite;Thermodynamic stability;Thermogravimetric analysis;Water filtration;Agricultural productions;In-situ polymerization;N-methylenebisacrylamide;Slow release fertilizers;Utilization efficiency;Water absorption rates;Water immersion method;Water retention properties;Water absorption
期刊:
农业工程学报
ISSN:
1002-6819
年:
2020
卷:
36
期:
14
页码:
167-173
基金类别:
2017YFD0200705:国家重点研发计划 KJCX20190302:北京市农林科学院创新能力建设专项 KJCX20180704:北京市农林科学院创新能力建设专项
机构署名:
本校为第一机构
院系归属:
核科学技术学院
摘要:
开发具有保水缓释双重功能的新型肥料,对于提高水肥利用效率和保障农业可持续发展具有重要意义。该研究探索了纳米二氧化硅(SiO_2)对提升保水材料吸水率及改善保水缓释肥性能的效果,采用丙烯酸(AA)和丙烯酰胺(AM)为原料,首先通过水溶液原位聚合法制备了P(AA-AM)/SiO_2复合保水材料,然后采用双层包膜工艺制备了保水缓释肥,在合成保水材料时,丙烯酸和丙烯酰胺的质量比为3.5∶1,引发剂(过硫酸钾和亚硫酸钠)、交联剂(N,N-亚甲基双丙烯酰胺)、增塑剂(丙三醇)和纳米SiO_2分别为单体质量的1%、0.04%、15%和2%。保水缓释肥采用转鼓包膜工艺制备,内包膜层为聚氨酯,占肥料核芯的3%,外包膜层为P(AA-AM)/SiO...
摘要(英文):
Water and fertilizer are indispensable inputs to crop production in modern agriculture. Drought, water shortage and low efficient utilization of water have posed a great challenge on agricultural production and food security in China. New fertilizers with dual functions of water retention and slow release become significant to enhance the utilization efficiency of water, and thereby to ensure the sustainable development of agriculture. Therefore, previous studies on the new fertilizers have drawn much attention in water and fertilizer technolog...

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