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利用差热分析和X射线衍射分析方法对铝交联蒙脱土的性能进行了测试。研究表明,铝交联蒙脱土的最佳制备条件是:OH-与Al3+的摩尔比为2.0,NH+4与Al3+的摩尔比为1.0,Al3+与蒙脱土的质量比为0.081,交联搅拌时间为6h。原料蒙脱土层结构的热稳定性是影响铝交联蒙脱土热稳定性的主要因素之一,NH+4的加入能提高铝交联蒙脱土的热稳定性,但是减少了引入蒙脱土中交联剂柱的数量
The properties of aluminum-crosslinked montmorillonite were tested by means of differential thermal analysis and X-ray diffraction analysis. The results show that the optimal conditions for the preparation of aluminum - crosslinked montmorillonite are as follows: the molar ratio of OH to Al3 + is 2.0, the molar ratio of NH + 4 to Al3 + is 1.0, and the mass ratio of Al3 + to montmorillonite is. 081, crosslinking time of 6h. The thermal stability of the raw material montmorillonite is one of the main factors affecting the thermal stability of the aluminum-crosslinked montmorillonite. The addition of NH + 4 can improve the thermal stability of the aluminum-crosslinked montmorillonite, but the reduction of the introduction of montmorillonite The number of cross-linking agent columns