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以锌铝水滑石ZnAl CO3LDHs为前体 (主体 ) ,以乙二醇为分散介质 ,用离子交换法组装了水杨酸根 (客体 )插层水滑石ZnAl [o HO(C6 H4)COO]LDHs ,并用XRD ,FT IR ,TG DTA等手段对样品进行了表征。结果表明 ,通过控制离子交换条件 ,水杨酸根阴离子可取代锌铝水滑石前体层间的CO2 -3离子 ,组装得到晶体结构良好的水杨酸根插层水滑石。通过研究发现 ,主体水滑石层板与客体以静电力和氢键相互作用 ,得到的超分子结构材料紫外阻隔作用增强并具有较好的稳定性 ,从而成为一种集屏蔽和吸收双重功能的新型无机 -有机复合紫外阻隔材料
ZnAl [o HO (C6H4) COO] LDHs with hydrargylate (guest) intercalation hydrotalcite were prepared by ion exchange method using ethylene glycol as dispersant and ZnAlCO3LDHs as precursor (host) The samples were characterized by XRD, FT IR and TG DTA. The results show that by controlling the ion exchange conditions, the salicylate anion can replace the CO2-3 ions between the zinc-aluminum-hydrotalcite precursor layers and the crystal structure of the salicylate-intercalated hydrotalcite can be assembled. Through the research, we found that the interaction between the host hydrotalcite plate and the guest by the electrostatic force and the hydrogen bond enhances the UV blocking effect of the supramolecular structure material and has good stability, thus becoming a new type of screening and absorption dual functions Inorganic - organic composite UV barrier material