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原位聚合法制备鱼藤酮微胶囊

Preparation of Rotenone Microcapsules by in-situ Polymerization

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【作者】 袁青梅杨红卫张发广王兴郑保忠

【Author】 YUAN Qing-Mei~(a),YANG Hong-Wei~(b),ZHANG Fa-Guang~(c),WANG Xing~(a),ZHENG Bao-Zhong~(a)(~aDepartment of Materials Science and Engineering,Yunnan Universitry,Kunming 650091;~bKunming Millitary Academy of the PLA,Kunming;~cKunming Cement Inc.,Kunming)

【机构】 云南大学材料科学与工程系昆明陆军学院昆明水泥股份有限公司云南大学材料科学与工程系 昆明650091昆明昆明650091

【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)%。

【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%.

【基金】 云南省自然科学基金资助项目(2002E0005Q)
  • 【文献出处】 应用化学 ,Chinese Journal of Applied Chemistry , 编辑部邮箱 ,2006年04期
  • 【分类号】TQ450.1
  • 【被引频次】40
  • 【下载频次】481
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