采用水热法,以LiOH-MgCl2-SiO2-H2O为反应体系,合成了系列锂皂石(Hectorite)样品。以XRD和FT-IR分析研究了系列锂皂石合成样品的结晶度和谱学特征,探讨了原料配比、晶化温度和晶化时间对合成产物结晶度的影响。结果表明,所设定的反应体系在温度为120℃、时间为12 h水热条件下即可形成锂皂石;在12~72 h和120~200℃合成条件下,随反应时间和反应温度的增加,样品的结晶度逐渐提高。 A series of samples of Hectorite were synthesized by hydrothermal method using LiOH-MgCl2-SiO2-H2O as reaction system. The crystallinity and spectral characteristics of the series of laponite samples were analyzed by XRD and FT-IR. The effects of the ratio of raw materials, crystallization temperature and crystallization time on the crystallinity of the synthesized products were discussed. The results show that the laponite can be formed under hydrothermal conditions of 120 ℃ and 12 h, and the reaction time and reaction temperature Increased, the crystallinity of the sample gradually increased.