【摘要】 采用三聚氰胺甲醛树脂(MF)作为囊壁,用原位聚合法对生物农药鱼藤酮进行包囊,制备微胶囊制剂。结果表明,MF为较好的生物农药用微胶囊缓释剂型的囊壁材料,该制剂制备工艺简单,具有良好的稳定性,微胶囊在0、25和50℃保存14 d后,未见胶囊的破裂,包封率也无明显改变;搅拌速率选择500 r/m in时,制备出的微胶囊粒径在10~60μm,符合农药微胶囊的要求;缓释性较好,大约有7 d以上的缓释时间;包封率为(68.55±5.0)%。更多还原

【Abstract】 The preparation of microcapsules of bio-pesticide rotenone by means of in-situ polymerization,with melamine formaldehyde resin(MF) as the shell material, is discussed in this paper.The results show that MF resin is a superior shell material for controlled release bio-pesticide microcapsules.The(production) process of this resin is simple and it has good stability.The microcapsules did not break and the(encapsulation) efficiency did not changed obviously after they were preserved at 0 ℃,(25 ℃),50 ℃ for 14 d,respectively.When the stirring rate was is 500 r/min,the size of the microcapsule was 10~60 μm,meeting the standard of pesticide microcapsules.The controlled release times of the product is about 7 d or more,and the encapsulation efficiency is 68.55%±5.0%.更多还原