精细化工
精細化工
정세화공
FINE CHEMICALS
2001年
5期
274-277
,共4页
邱广亮%邱广明%胡玲%柯云玲
邱廣亮%邱廣明%鬍玲%柯雲玲
구엄량%구엄명%호령%가운령
核壳磁性复合微球%分散聚合%磁流体
覈殼磁性複閤微毬%分散聚閤%磁流體
핵각자성복합미구%분산취합%자류체
运用分散聚合法制备出Fe3O4/P（St-CBA）核壳磁性复合微球。该微球粒径为0.075～0.700 μm、w(Fe3O4)=0.05%～0. 90%，呈规整球型，表面光滑，在0.05 T磁场中的磁响应性为3.0 cm/min。制备微球的最佳条件为：w(磁流体)=0.5%～3.0%、w(马来酸酐)=0.0%～2.0%、w(无水乙醇)=30.0%～70.0%。
運用分散聚閤法製備齣Fe3O4/P（St-CBA）覈殼磁性複閤微毬。該微毬粒徑為0.075～0.700 μm、w(Fe3O4)=0.05%～0. 90%，呈規整毬型，錶麵光滑，在0.05 T磁場中的磁響應性為3.0 cm/min。製備微毬的最佳條件為：w(磁流體)=0.5%～3.0%、w(馬來痠酐)=0.0%～2.0%、w(無水乙醇)=30.0%～70.0%。
운용분산취합법제비출Fe3O4/P（St-CBA）핵각자성복합미구。해미구립경위0.075～0.700 μm、w(Fe3O4)=0.05%～0. 90%，정규정구형，표면광활，재0.05 T자장중적자향응성위3.0 cm/min。제비미구적최가조건위：w(자류체)=0.5%～3.0%、w(마래산항)=0.0%～2.0%、w(무수을순)=30.0%～70.0%。
Fe3O4/P（St-CBA）core-shell composite microspheres,having diameters of 0.075-0.700 μm,containing 0.05%-0.90% magnetite,surface carboxyl groups,and anhydride groups in magnetic composite microspheres,were synthesized by dispersion polymerization of styrene(St) and cis-butenedioic anhydride(CBA) with magnetic fluid dispersing in alcohol/water.In present study,the amount of magnetite(0.05%-0.90%) in magnetic composite microspheres was determined by atomic absorbing spectrum.Size and magnetite content of composite microspheres were highly dependent on the amounts of magnetic fluid,cis-butenedioic anhydride(CBA) and alcohol.Under the optimum conditions,the amount of magnetic fluid,CBA and alcohol were 0.5%-3.0% ,0.0%-2.0% and 30.0%-70.0% respectively.
