抗紫外Ce^(3+)掺杂ZnO/PMMA纳米复合蒙皮材料的制备及性能研究

Preparation and characterization of Ce^(3+)-doped ZnO/PMMA nanocomposites

采用水热法制备了Ce3+掺杂ZnO粉体,再用本体聚合法将Ce3+掺杂ZnO粉体和聚甲基丙烯酸甲酯复合,制备一种新型的抗紫外无机/聚合物纳米复合蒙皮材料。主要研究了利用水热法制备纳米ZnO:Ce3+,用KH-151进行改性。采用本体聚合法制备ZnO:Ce3+/PMMA纳米复合材料,并利用FTIR、XRD、SEM、TGA及拉伸测试仪等手段分别对Ce3+掺杂ZnO粉体及其改性、与PMMA复合材料的结构和性能进行了表征。结果表明:无机材料纳米ZnO:Ce3+的加入,增强有机玻璃PMMA的热稳定性的同时,增强复合材料的拉伸强度,改善其力学性能和抗紫外性能。

Ce3＋ --doped ZnO was synthesized via the hydrothermal method, and then Ce3＋ --doped ZnO with monomer of methylmethacrylate by the bulk copolymerization, a new type of ultraviolet resistant inorganic/polymer nano composite using in skin of aerostat systems were prepared. The nano structure of ZnO. Ce3＋ , modified with KH--151, dispersed in methylmethacrylate for bulk polymerization, and. Ce3＋ --doped ZnO/PMMA nanocomposite were studied. And the structure and properties of Ce3＋doped ZnO powders and their modification, Ce3＋ --doped ZnO/PMMA composites have been characterized by using FTIR, XRD, SEM, TGA and tensile tester, respectively. ;he results showed that the incorporation of inorganic nano--ZnO enhanced the thermal stability of PMMA and improve its thermal properties, and the incorporation of inorganic Ce3＋ --doped ZnO enhanced the strength of PMMA and improved its mechanical property.