| 包覆型高铁酸钾缓释剂的制备及性能表征 |
| |
| 引用本文： | 叶谋仁,苑宝玲,兰华春,傅美缘. 包覆型高铁酸钾缓释剂的制备及性能表征[J]. 高技术通讯, 2008, 18(2): 201-205. DOI: 10.3772/j.issn.1002-0470.2008.02.018 |
| |
| 作者姓名： | 叶谋仁 苑宝玲 兰华春 傅美缘 |
| |
| 作者单位： | 福州大学环境与资源学院,福州,350002;福州大学环境与资源学院,福州,350002;福州大学环境与资源学院,福州,350002;福州大学环境与资源学院,福州,350002 |
| |
| 基金项目： | 国家自然科学基金 , 福建省环保局科技计划 |
| |
| 摘 要： | 以切片石蜡为包覆壁材，以高铁酸钾为芯材，采用熔化悬浮冷凝法制得包覆型高铁酸钾。实验结果表明：分散方式对包覆率的影响很大，当搅拌速度为800r／min，超声时间为30min时，包覆率可达到85.5％；采用红外光谱、X射线衍射和扫描电镜对包覆后的产品进行了性能表征，结果发现，切片石蜡对高铁酸钾的包覆并没有破坏高铁酸钾的组分活性，包覆后高铁酸钾的缓释符合Q=kt^n动力学模型，而且持续缓释性能良好，切片石蜡与高铁酸钾质量比为3：1、5：1和10：1的包覆产品的理论缓释半衰期分别可达到7.5天、2.6月和17.0年。
|
| 关 键 词： | 切片石蜡 高铁酸钾 包覆 缓释 |
| 修稿时间： | 2007-08-15 |
Preparation and characterization of embedded potassium ferrate for controlled release |
| |
| Ye Mouren,Yuan Baoling,Lan Huachun,Fu Meiyuan. Preparation and characterization of embedded potassium ferrate for controlled release[J]. High Technology Letters, 2008, 18(2): 201-205. DOI: 10.3772/j.issn.1002-0470.2008.02.018 |
| |
| Authors: | Ye Mouren Yuan Baoling Lan Huachun Fu Meiyuan |
| |
| Affiliation: | College of Environment & Resources;Fuzhou University;Fuzhou 350108 |
| |
| Abstract: | Embedded potassium ferrate was prepared by the mohen suspension and cooling (MSC) method with paraffin as em- bedded matrix and K_2FeO_4 as embedded particles.The result shows that the encapsulation ratio can reach about 85.5% when stirring speed was at 800r/min and ultrasonic time was 30min.The characterization of embedded potassium ferrate by FFIR,XRD and SEM showed that the aetive component of K_2FeO_4 was not decomposed during the embedding process. The kinetics model of the release of K_2FeO_4 from the... |
| |
| Keywords: | paraffin potassium ferrate encapsulation controlled release |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
