天津工业大学学报2018，Vol.37Issue(2)：43-48,6.DOI:10.3969/j.issn.1671-024x.2018.02.008
以密胺树脂为壁材的甲基嘧啶磷微胶囊的制备与表征
Fabrication and characterization of pirimiphos-methyl microcapsules with melamine resin as wall materials
摘要
Abstract
In order to improve the stability of pirimiphos-methyl(PM),PM microcapsules with melamine resin as wall material were fabricated successfully by in-situ polymerization.The effects of pH value and core/wall ratio on the properties of the microcapsules were investigated.The particle size,morphology,pesticide loading,encapsula-tion efficiency, thermal stability and sustained release property of the microcapsules were analyzed by Fourier transform infrared(FTIR)spectroscopy,scanning electron microscopy(SEM),laser particle size analysis (LPSA)and high performance liquid chromatography(HPLC).The results showed that the prepared microcap-sules had regular globular structure,excellent thermal stability and high encapsulation efficiency when pH value of the reaction system was 5.The thermal storage loss of the microcapsules was less than 5% when the core wall ratio was lower than 15:6.In addition,the slow-release rate of the active ingredients in microcapsules can be effectively controlled by adjusting the core/wall ratio.关键词
甲基嘧啶磷/密胺树脂/缓释/微胶囊Key words
pirimiphos-methyl/melamine resin/sustained release/microcapsules分类
化学化工引用本文复制引用
王建平,何润合,田华龙,王学晨,张兴祥..以密胺树脂为壁材的甲基嘧啶磷微胶囊的制备与表征[J].天津工业大学学报,2018,37(2):43-48,6.基金项目
国家自然科学基金资助项目(50573058,51203113,51573135) （50573058,51203113,51573135）
航空科学基金资助项目(201229Q2002) （201229Q2002）
天津市科技计划项目(09ZCKFGX02200) （09ZCKFGX02200）
