高性能碳微球的研发及其制备条件优化

Preparation of high performance CMSs and optimization of condition

采用来源广泛且价格低廉的蔗糖为原料,水热合成高性能碳微球(CMSs)。分别考察了料液比、反应温度及反应时间对CMSs质量和粒径的影响;并以这3个因素为考察对象,进行正交优化试验;同时用扫描电子显微镜对对合成产品的形貌进行了考察。结果表明,合适的料液比、恰当的温度及适中的反应时间才能得到粒径较小、表面平整且分散性好的CMSs。通过优化实验条件,在料液比33g/L、反应温度200℃、反应时间20h时,得到平均粒径为0.65μm的表面光滑、分散性好的CMSs。

High performance carbon microspheres(CMSs)were preparied by hydrothermal synthesis from sucrose with wide sources and low cost.The effects of solid-liquid ratio,reaction temperature and reaction time on CMSs quality and particle size were investigated.These three factors were studied then to find out the optimal conditions.The morphology of synthetic products was investigated by scanning electron microscopy.The results shown that suitable solid-liquid ratio,appropriate temperature and reaction time that need to be fulfilled to get smaller particle size,smoother surface and better dispersion of CMSs.The optimization of conditions were as follows:when the solid-liquid ratio,reaction temperature and reaction time reached 33g/L,20hand 200℃ respectively,smooth surface and good dispersity of CMSs with average particle size of 0.65μm can be obtained.