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2,4,6-三(二甲胺基甲基)苯酚有机改性蒙脱土

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Keywords: 2,4,6-三(二甲胺基甲基)苯酚,蒙脱土,环氧树脂,有机改性

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Abstract:

以2,4,6-三(二甲胺基甲基)苯酚(DMP-30)作为插层剂,采用阳离子交换法对钠基蒙脱土进行了有机改性;研究了DMP-30与盐酸的摩尔比对蒙脱土有机改性效果的影响;采用SEM、TEM、IR和XRD等对样品的微观形貌和结构进行了表征。结果表明:DMP-30与盐酸的摩尔比对蒙脱土有机改性具有明显的影响,在合适的摩尔比(1∶2)时,DMP-30分子插入到蒙脱土片层间,片层间距由1.34nm增加至1.81nm。对改性后蒙脱土与环氧基体的复合效果进行了研究,结果显示,复合材料中蒙脱土的d001衍射峰消失,表明有机改性蒙脱土在环氧树脂基体中得到了充分剥离。

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