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以原位聚合脲醛树脂的方法制备了滴丁·乙-微囊悬浮剂。利用UV,激光粒度仪,光学显微镜,SEM,FT-IR等对制剂进行表征,结果表明:所制备的微囊悬浮剂中,2,4-D丁酯和乙草胺的包封率分别为85%和89.9%,微囊平均粒径为3.79μm,粒度分布较窄,表面光滑致密,红外光谱分析表明微囊由脲醛树脂壁材与滴丁·乙芯材所组成。
In situ polymerization of urea-formaldehyde resin was prepared drip B · microcapsule suspension. The preparation was characterized by UV, laser particle size analyzer, optical microscope, SEM, FT-IR. The results showed that the encapsulation efficiency of 2,4-D butyl acetate and acetochlor in the prepared microcapsule suspension were 85% and 89.9%. The mean diameter of microcapsules was 3.79μm. The particle size distribution was narrow and the surface was smooth and compact. The infrared spectra showed that the microcapsules consisted of UF resin wall material and DDP core material.