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以正硅酸乙酯(TEOS)和氯化钙为壁材固化包裹戊唑醇,制备得到2.5%的戊唑醇硅酸钙纳米胶囊缓释剂.并利用扫描电镜、激光粒度分布仪、傅里叶红外色谱仪、高效液相色谱对其理化性能进行详细表征,并对其缓释性能进行了探讨.结果表明:该方法能够得到硅酸钙包裹的戊唑醇纳米胶囊缓释剂;胶囊形状为规则的球形,平均粒径为209.8nm,粒径分布窄,且呈正态分布,形态稳定;较高温度和pH碱性能够提升戊唑醇的缓释速率,壁材的增厚会降低戊唑醇的缓释速率.戊唑醇微胶囊的制备对提高戊唑醇的使用效率、降低残留、减少环境污染具有重要的意义.
Tebuconazole 2.5% tebuconazole nanocapsules were prepared by solidifying tebuconazole with TEOS and calcium chloride as wall materials, and scanning electron microscopy, laser particle size distribution analyzer, The results showed that this method can obtain the tebuconazole nanocapsule sustained-release agent wrapped by calcium silicate; the capsule The shape of a regular spherical shape, the average particle size of 209.8nm, particle size distribution is narrow, and was normal distribution, shape and stability; higher temperature and pH alkaline can enhance the release rate of tebuconazole, wall thickening will Reduce the release rate of tebuconazole.Preparation of tebuconazole microcapsules is of great significance to improve the use efficiency of tebuconazole, reduce residues and reduce environmental pollution.