丙烯酸甲酯/水滑石纳米复合材料的制备研究  

Preparation of Methyl Acrylate/Mg,Al-hydrotaicite Nanocomposites

作　　者：任庆利[1] 曹全喜[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《稀有金属材料与工程》2007年第A02期257-260,共4页Rare Metal Materials and Engineering

基　　金：陕西省自然科学基金(2004E1-13)

摘　　要：在常压下,采用液相法制备镁铝水滑石纳米晶体,采用超声化学法制备丙烯酸甲酯(MA)/镁铝水滑石纳米复合材料。XRD、SEM和TEM的分析表明:镁铝水滑石与MA纳米复合后,镁铝水滑石纳米晶体均匀分散在MA基体中,原镁铝水滑石纳米晶体的(001)衍射峰中心从11.44°处前移至8.22°处、且其层间距扩大0.3075nm;MA分子进入镁铝水滑石纳米晶体的中层间的层间,形成了插层纳米复合材料;随着MA加入量的加大,原镁铝水滑石纳米晶体的(001)衍射峰宽化弥散。MA分子插层进入镁铝水滑石纳米晶体及其间的相互作用由红外光谱分析得到印证。Mg, Al-hydrotalcite nanocrystalline samples were synthesized by the one-step liquid reaction method at atmospheric pressure. And methyl acrylate （MA）/Mg, Al-hydrotalcite nanocomposite samples were prepared by the liquid reaction method at atmospheric pressure successfully. The effect of the Mg, Al-hydrotalcite nanocrystalline adding amount on MA/Mg, Al-hydrotalcite nanocomposite and the effect of the reaction time on the nanocomposite were investigated, respectively. According to the XRD, SEM and TEM analysis results, it is found that Mg, Al-hydrotalcite nanocrystalline grains distribute evenly throughout the MA organic medium; moreover, the distance of Mg, Al-hydrotalcite middle layer becomes bigger with MA molecules intercalating the middle layer; the more amount of MA organic medium, the bigger the distance of Mg, Al-hydrotalcite middle layer; the longer the reaction time, the bigger the distance of Mg, Al-hydrotalcite middle layer. Besides, based on the IR analysis results, the interactional mode between MA molecules and Mg, Al-hydrotalcite nanocrystalline was also studied. And it is found that the functional groups, CH3- and CH2=, of methyl acrylate molecules hang over hydroxy groups （OH） of the positively charged basic layer [Mg6Al2（OH）16]^2＋ of Mg,Al-hydrotalcite nanocrystalline; and the functional groups, ester, of methyl acrylate molecules stay in the Mg, Al-hydrotalcite middle layer.

关 键 词：镁铝水滑石 纳米晶体 丙烯酸甲酯 插层法 纳米复合材料 

分 类 号：TB383.1[一般工业技术—材料科学与工程]