Abstract The physicochemical aspects of four soft kaolins were investigated using X-ray diffraction (XRD), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), Fourier transformation infrared spectroscopy (FTIR), differential scanning calorimetry-thermogravimetry (DSC-TG) specific surface area and surface zeta potential measurements. The correlation between degree of crystal order, thermal stability, morphology and surface characteristics of the kaolinites were examined and discussed. The endothermic peak temperatures, in particular, showed a clear positive correlation with the calculated crystallinity index of the kaolinites. The physicochemical characteristics of a natural kaolinite rod were considered in greater detail. Rod-like kaolinite had lower degree of order and zeta potential (pH

中文翻译：

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深入了解不同形态高岭土的物理化学方面

摘要 采用 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、傅里叶变换红外光谱 (FTIR)、差示扫描量热-热重分析 (DSC-TG) 等方法研究了四种软高岭土的理化性质。 ) 比表面积和表面 zeta 电位测量。考察和讨论了高岭石的晶体有序度、热稳定性、形貌和表面特征之间的相关性。特别是吸热峰温度与计算的高岭石结晶度指数呈明显的正相关。更详细地考虑了天然高岭石棒的物理化学特性。棒状高岭石具有较低的有序度和 zeta 电位（pH