The ommt used in this study were prepared by replacing na + ions in layered silicates with alkylammonium or alkylphosphonium cations by ion exchange . the two kinds of ommt can be represented by ammo - mmt and pho - mmt 一种为采用烷基季?盐有机化处理的mmt ( pho - mmt ) ；另一种为采用烷基季铵盐处理的商品有机土( ammo - mmt ) 。
X - ray diffraction was used to study the diversification of the inter - layer space of montmorillonite as well as the influence factors of different reactants , reaction molar ratios and reaction time to the synthesis of porous montmorillonite heterostructed materials 利用x射线衍射探讨了不同改性土层间距变化情况，同时考察了不同有机土和中性胺以及反应物摩尔配比和反应时间等因素对合成蒙脱土多孔异构材料的影响。
Study on the optical properties of transparent epoxy / clay nanocomposites a new type transparent epoxy based nanocomposites has been prepared by the reaction of alkylammonium exchanged montmorillonite ( amt ) with diglycidyl ether of bisphenol a ( dgeba ) and triethylamine as the curing agent . the morphology of amt in the epoxy matrix was characterized with x - ray diffraction ( xrd ) , scanning electron microscopy ( sem ) and transmission electron microscopy ( tem ) 光学透明环氧树脂粘土纳米复合材料光学性能采用十八烷基伯胺盐、十六烷基三甲基溴化胺处理na基蒙脱土制备出两种不同的有机土，以三乙胺为固化剂，有机土与双酚a型环氧树脂熔融插层聚合后制备出剥离型和插层型两种结构的环氧树脂粘土纳米复合材料。
Trough overlaying of landform , parent material and soil maps , soter unit database is developed . moreover , soter land resource database was established based on soter unit map and climate region map . soter land use database was built based on china land use classification and soter socio - economical database is built base on statistical data 在此基础之上，更新土壤属性生成母质图，进而利用土壤普查资料中的剖面记载与剖面描述将邯郸地区土壤发生分类转换为系统分类，邯郸地区存在雏形土、新成土、有机土、人为土、盐成土五个土纲十三个土类二十一个亚类。
The light transmittance of the former with small amt content was higher than that of the latter with relatively higher amt content at the shorter wavelengths , and was lower than the latter at the longer wavelengths . and normalized light transmittance increased when the wavelength increased and the amt content decreased , whenever the amt is exfoliated or intercalated . on the additional , the light transmittance of composites prepared with different amounts of curing agent was also investigated 粘土在环氧树脂基体中的结构对材料的光学透明性有很大的影响，当有机土含量相同时，粘土剥离有利于ec材料保持较高的透光率；当低粘土含量的插层型纳米复合材料与高粘土含量的剥离型纳米复合材料相比较时，材料的透光率大小关系随波长的变化而变化：在短波长时，插层型纳米复合材料优于后者；波长变长时，剥离型纳米复合材料具有较高的透光率，尽管体系中粘土的含量远大于插层型纳米复合材料。
The results was explained with the scattering theory of spherical particles , which indicated that the effect of morphology of composites on the transparency mainly came from the exfoliation extent of amt , which caused the change of the particle size and basal spacing of amt in epoxy matrix , and the effect of the particle size was more significant than the basal spacing of amt 对剥离型纳米复合材料的透光率与有机土含量及波长的关系进行了进一步的研究得出，材料的归一化透光率与有机土含量及波长存在下列经验关系：并采用球型粒子光散射模型对上述实验结果进行了理论分析。
