以丙烯酸丁酯、苯乙烯为单体，十二烷基硫酸钠为乳化剂，过硫酸铵为引发剂，通过乳液共聚包覆在片状铝粉的表面，并探讨单体配比、反应温度、反应时间对包覆铝粉耐酸腐蚀性能的影响。结果表明，在单体丙烯酸丁酯与苯乙烯的配比m BA/mSt为1:1、反应温度为80℃、反应时间为4 h时，包覆铝粉的耐酸腐蚀性能较好。运用红外光谱和扫描电镜对包覆样品进行分析表征。
To improve the corrosion resistance of the flaky aluminum powder, the flaky aluminum powder was coated by emulsion polymerization, which used butyl acrylate and styrene as monomers, sodium dodecyl sulfate as emulsifier and ammonium persulfate as initiator. The effect of the proportion of butyl acrylate and styrene, reaction temperature and reaction time on the corrosion resistance of the coated aluminum powder was examined. The results show: its acid resistance is improved obviously; the coated aluminum powder obtained under the conditions that the proportion of butyl acrylate and styrene (mBA/mSt) is 1:1, reaction temperature is 80℃ and reaction time is 4 h has good acid resistance. Moreover，the encapsulated samples were analyzed and characterized by Fourier transform infrared spectroscope and scanning electron microscope.
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