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介绍了以天然高分子为载体的农药缓释微球的制备方法,包括挤出-外源凝胶法、乳化-凝胶法(乳化-外源凝胶法和乳化-内源凝胶法)、乳化-溶剂挥发法(单乳液法、双乳液法)等,着重分析各种制备方法对微球结构、粒径、包埋率、缓释等性能的影响,并讨论了共混改性和表面涂覆改性载药微球的缓释性能,同时指出了农药缓释微球的发展方向。
The preparation of pesticide sustained-release microspheres with natural macromolecule as carriers was introduced, including extrusion-exogenous gel method, emulsification-gel method (emulsification-exogenous gel method and emulsification-endogenous gel method) , Emulsification - solvent evaporation method (single emulsion method, double emulsion method), focusing on various preparation methods on microsphere structure, particle size, embedding rate, sustained release and other properties, and discussed the blend modification and Coated with modified drug-loaded microspheres sustained-release properties, while pointing out the development of pesticide sustained-release microspheres.