Comprehensive Characterization of the Structure and Gel Property of Organo-Montmorillonite: Effect of Layer Charge Density of Montmorillonite and Carbon Chain Length of Alkyl Ammonium

• DOI: 10.3390/min10040378
• Publication Date: 2020-04-23T14:46:22Z
• Authors: Jun Qiu; Dongliang Liu; Yueting Wang; Guowei Chen; Shan Jiang; Guoqing Li; Yaqi Wang; Wenxin Wang; Peng Wu; Xiaodong Liu; Guifang Wang; Xianjun Lyu
• Keywords: Charge density; Carbon fibers

In this work, the effect of layer charge density Na-montmorillonite (Na-MT) and carbon chain length alkyl ammonium on structure gel property organo-montmorillonite (organo-MT) was studied by using X-ray diffraction (XRD), Fourier transform infrared (FTIR), thermogravimetric (TG) analysis, contact angle test, molecular dynamics (MD) simulation, apparent viscosity determination experiment. The results XRD show that Na-MT with lower is easier to swell after intercalation ammonium, basal spacing organo-MT increases increase length. FTIR absorption bands at 2924 cm−1 2853 shift towards low frequency region length, 515 463 move high when increases. mass loss evidently or ammonium. test are well in line TG data reveal longer can significantly improve hydrophobicity organo-MT. MD simulation indicates that, low, distribution gradually changes from parallel double layers partially inclined but high, three into four layers. formed xylene negatively correlated positively