不同生产工艺对4BS生成影响的研究

Study on the influence of different processes on the generating of 4BS

利用电子扫描显微镜、X射线衍射技术,研究了铅膏配方中不同H2SO4与PbO添加比例、极板固化温度、固化时间等因素对活性物质内生成四碱式硫酸铅(4BS)含量和晶体颗粒尺寸的影响。研究发现H2SO4与PbO的添加比例对4BS在活性物质内的生成量有直接影响,对晶体颗粒尺寸无明显影响;固化温度对活性物质内4BS生成量无明显影响,对晶体颗粒尺寸影响较大;固化时间对活性物质中4BS生成量和晶体颗粒大小均有一定影响。

We use the techniques of scanning electron microscopy （SEM） and X-ray diffraction （XRD） to investigate the influence of different proportion of H2SO4 and PbO in the paste formula, curing temperature and time on the content of 4BS and the size of crystal. The results suggest that proportion of H2SO4 and PbOhas a direct impact on the content of 4BS in the active material, while it has no significant effect on the size of crystal. On the contrary, the curing temperature has no effect on the content of 4BS, but it influences the size of crystal more considerably. It also can be told that curing time has a certain impact both on the content of 4BS and the size of crystal as well.