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以微波结晶法制备的碳酸根型镁铝水滑石(LDHs)为前体,对氨基苯甲酸为客体,由水热法、离子交换法、焙烧复原法三种方法组装合成了对氨基苯甲酸插层镁铝水滑石复合材料。并用XRD、FTIR、TG-DSC、SEM等对其结构进行表征。结果表明:各种方法均能合成相应的插层水滑石层柱材料,层间距分别扩大为0.81 nm、0.79 nm、1.45 nm。三种合成材料的紫外吸收强弱与对氨基苯甲酸插层水滑石分子后的层间距大小有关。该研究指出对氨基苯甲酸插层水滑石作为一种紫外吸收层柱材料在化妆品领域具有应用潜力。
Carbonyl magnesium aluminum hydrotalcite (LDHs) prepared by microwave crystallization method was used as precursor and p-aminobenzoic acid was used as the guest. Hydrophilic, ion exchange and calcination were used to synthesize p-aminobenzoic acid Layer Mg-Al hydrotalcite composite material. Their structures were characterized by XRD, FTIR, TG-DSC and SEM. The results show that all kinds of intercalation hydrotalcite layer materials can be synthesized by various methods, and the interlayer spacing is expanded to 0.81 nm, 0.79 nm and 1.45 nm respectively. The three kinds of synthetic materials UV absorption and para-amino acid intercalated hydrotalcite molecules after the layer spacing size. The study indicates that p-aminobenzoic acid intercalated hydrotalcite has potential applications as a UV-absorbing pillared material in cosmetics.