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用阳离子表面活性剂十六烷基三甲基溴化铵为改性剂，对经过热处理的坡缕石粘土进行表面改性。对改性坡缕石粘土进行红外光谱、Ｘ 射线及扫描电镜分析的结果表明，表面改性剂已与粘土发生作用，使粘土的结构及表面形态和性质发生了变化。吸附性实验表明，改性前后坡缕石粘土具有不同的吸附特点。
Surface modification of the heat treated palygorskite clay with cetyltrimethylammonium bromide as modifier. The results of FTIR, X-ray and scanning electron microscopy show that the surface modifier has a role in the clay and the structure and surface morphology and properties of the clay have been changed. Adsorption experiments show that before and after modification of palygorskite clay has different adsorption characteristics.