An organoclay formula for the slow release of soluble compounds
文献类型：期刊论文
| 作者 | Yuan, Guodong
|
| 刊名 | APPLIED CLAY SCIENCE
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 100期号:0页码:84-87 |
| 关键词 | Organoclays Nanoclays Slow-release formula Fertilizer DCD |
| 英文摘要 | Slow-release formulations have been developed to enhance the effective use of active ingredients. In the case of fertilizers the formulations reduce nutrient leaching and greenhouse gas emissions. While polymer-coating is the dominant technology in producing slow-release fertilizers there is a demand for alternative options for different usages. To this end, a commercially available organoclay, with a basal spacing of 3.67 nm, was used as matrix to produce pellets of CuSO4 and dicyandiamide (DCD) of different sizes by a die set and hand press. Both CuSO4 and DCD pellets showed a good slow-release performance in dissolution tests. Large pellets (1.2 cm in diameter) of CuSO4 had a better performance in slow-release than small ones (0.7 cm). For DCD pellets (0.7 cm in diameter) it took 6 days for a complete dissolution. The slow-release effect is probably due to the hydrophobic nature and high aspect ratio of the organoclay. The former makes soluble compounds between organoclay particles less susceptible to dissolution in water, whereas the latter hinders the dissolution of solutes inside a pellet by making their diffusion passage tortuous. The organoclay formulation is easy to make, and the rate of solute release can be adjusted by changing pellet size. (C) 2014 Elsevier B.V. All rights reserved. |
| 研究领域[WOS] | Chemistry ; Materials Science ; Mineralogy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342956400011 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/7371]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Guodong. An organoclay formula for the slow release of soluble compounds[J]. APPLIED CLAY SCIENCE,2014,100(0):84-87. |
| APA | Yuan, Guodong.(2014).An organoclay formula for the slow release of soluble compounds.APPLIED CLAY SCIENCE,100(0),84-87. |
| MLA | Yuan, Guodong."An organoclay formula for the slow release of soluble compounds".APPLIED CLAY SCIENCE 100.0(2014):84-87. |
入库方式： OAI收割
来源：烟台海岸带研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。